iqis profile

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Industrial Quality and Inspection Services CompanyProfileMobile No: 09833455456 / 08108576465

E-mail: [email protected] / [email protected]

A-301, Pioneer Heritage Residency-1, Opp. Sane Guruji School, Off. S.V. Road, Santacruz (W), Mumbai - 400054

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About Us

IQIS is a reputed company in India for Nondestructive testing, Material testing, Third party inspection in NDT and Welding

Inspection related technologies to clients in manufacturing, processing, heat treatment, in-service inspection of nuclear,

aerospace NDT, automobile, fabrication of structures, oil & gas exploration companies, petroleum refineries, cross country

pipelines in India and abroad.

IQIS operates in the field of Training, Inspection, Consultancy, and Human Resources. IQIS was established in 2011 by a

core group of eminent NDT, Welding Inspection and Material testing professionals, Engineers and technologists with a rich

experience of 30 plus years with many industrial verticals. Operating with a well-equipped setup having NDT inspection

facilities, state of art inspection and testing equipments, modern training center, ' IQIS' is centrally located at the heart of

India's financial Capital Mumbai, Maharashtra, India with easy connectivity to state and national highway.

Since its inception, IQIS has been successfully serving its clients in India with high quality, cost effective and timelyservices. IQIS is widely recognized and respected for its quality integrity services with technology driven resources.

IQIS strictly follows good work culture and ethics in business. Strong in many testing techniques, IQIS values every client

and cares for the quality of their products and believes in stronger customer relationship by providing dedicated, quick and

timely services. Understanding the strict process and delivery schedules of the client our team relentlessly strives to

complete every project in time. To become closer to all our clients, IQIS has initiated an innovative concept 'A Call away

from you' and believes in 'Customer is the King' in all the activities.

Our Vision

We maintain, as our priority, high quality standards and exceptional customer service. Our company confirms its

commitment to being an integral part of the growth in the Petrochemical & Engineering Industry throughout India.

MISSION STATEMENT

"Our mission is to be the leading global provider of technology enabled asset protection solutions used to

evaluate the structural integrity of critical energy, industrial and public infrastructure."

OUR CORE VALUES

Safety and Health Stewardship...

Safety and health are an integral part of all our business activities. We believe that all incidents are preventable and our

goal for them is zero.

Customer Satisfaction...

We ensure that the highest levels of quality service and product conformance are delivered flawlessly to our customers

knowing that is key to the success of our business.

Leadership...

We will continue to be the leading "one source" provider of technology enabled asset protection solutions. We practice

leadership and integrity in all areas of our business including diversity in our people and sophistication in our products and

services.

Our Employees...

We understand that our people are key to our success and everything we do reflects on their integrity, skills, ethics and commitment,

and in return, they deserve to be treated fairly and with trust and respect.


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Service we provides

Inspection Services

To improve manufacturing quality and product reliability, components and structures are regularly inspected for

discontinuities, defects or faults which may reduce their structural integrity leading to failure. Among the material testing

methods developed for inspection purposes, Non-destructive testing (NDT) techniques present the advantages of leaving

the components undamaged after inspection.

IQIS Inspection is equipped with modern NDT equipments, approved written practices and procedures, qualified and

certified NDT Level I, II, technicians and in-house ASNT NDT III certified professionals, materials testing experts, welding

inspection and quality control personnel.

Need for Inspection

1. Weeding out defective raw materials /components at the incoming stage itself instead of accepting and paying for it2. Detect defects that may occur during the manufacturing process before spending time and money on furtherprocessing of the defective materials

3. Improve manufacturing techniques by inspecting the product during processing operations to maintain uniform qualityand standard

4. Detecting discontinuities at final stages of manufacturing to improve product reliability and safety during operation5. In-service inspection to detect service induced flaws6. Ensure prevention of accidents and promote safety for workers and equipment during over hauling and maintenance7. Enhance the reputation of manufacturer as producer of quality productsInspection facilities at IQIS1. Ultrasonic Testing: It is carried out for evaluating the internal soundness of many engineering products made of steels

and other metals and nonmetals processed through Casting, forging, rolling, extrusion, drawing and other modern

processing techniques. Ultrasonic inspection is also extensively being used for evaluating the quality of welds, in-service

inspection of critical process equipments, storage tanks, cross country pipelines, pressure vessels and assemblies. IQISis

fully equipped with calibrated, latest DGS Ultrasonic equipments, qualified, certified and experienced Level 1, 2 technicians,

and also ASNT NDT level 3, experts to carry out these tests and other related services within the shortest possible

response time.

Ultrasonic Testing is an NDT method applied to detect internal flaws in materials, components and structures. Ultrasonic

is sound beyond the human audible range that is 20 to 20kHz. Ultrasonic inspections use frequencies of above 0.5MHz up

to 25MHz to test metals, ceramics, glass, composite and other engineering materials.

The ultrasonic waves travel through the material with some loss of energy (attenuation) due to material characteristics. The

intensity of ultrasonic waves is measured, after reflection at interfaces (or flaw) or is measured at the opposite surface of the

specimen (through transmission). The reflected beam is detected and analyzed to define the presence and location of flaws.

The degree of reflection depends largely on the physical state of matter on the opposite side of the interface, and to a lesser

extent on specific physical properties of that matter. For instance, ultrasonic waves are almost completely reflected at metal-

gas interfaces, partial reflection occurs at metal-liquid or metal-solid interfaces. Ultrasonic testing has a superior penetrating

power than radiography testing and can detect flaws deep (up to 5metre of steel) in the test objects. UT is quite sensitive to

small flaws and allows the precise determination of the location and size of the discontinuities.


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Ultrasonic testing is commonly used for inspecting castings, rolled bars, plates, forgings, thin sheets, extruded components,

drawn components, welds and to measure reduction in thickness of pipes, vessels and other componentsIQIS is equipped with

1. State of the Art Ultrasonic flaw detection equipments with built-in DGS curves, AVG, AWS flaw sizing techniques forwelds.

2. Transducers suitable for critical inspections, most sensitive, high temperature and high attenuative materials inspectionapplications.

3. T-K-Y joints testing experts.4. Experienced in house ASNT NDT Level III experts for providing techniques establishment, procedure preparation,approval and consultancy services in UT.

5. Ultrasonic inspection professionals qualified and certified to Level I, II as per ASNT recommended practice SNT-TC-1A, and are approved by leading third party inspection authorities.

2. Radiography Testing: It is carried out using X-rays or Gamma rays. Radiographic testing (RT) is one of the most reliable

and widely used NDT methods in industries. Works on the principles of differential absorption of radiation, radiography is

used to detect internal flaws in castings and welds. Additional advantage with Radiography is the availability of permanent

record for future reference. IQIS Inspection has experienced Level 1, 2, and 3 professionals to carry out the tests and

interpretations accurately.

Radiographic testing method is useful for the detection of internal flaws in many different materials and configurations

especially used for quality assurance of castings, forgings and welds. An appropriate radiographic film is placed behind the

test specimen and is exposed by passing either X-rays or gamma rays through it. The intensity of the X-rays or gamma rays

while passing through the product is modified according to the internal structure of the specimen and thus the exposed film,after processing, reveals the shadow picture, known as a radiograph, of the product. It is then interpreted to obtain data

about the discontinuities present in the specimen.

IQIS is equipped with latest equipments, radioactive isotopes (Ir-192), X-ray machines for a radiographic inspection and

high intensity illuminators suitable for high density film interpretation. The radiography technicians are experienced in

inspection of castings in foundries, weldments in heavy fabrication, cross country pipelines, petroleum refinery piping,

nuclear and aerospace components. Consultancy services can also be provided by our in house ASNT NDT Level IIIs in the

method.

The Radiography testing facilities is equipped with

1. State of the Art, Modern, Sleek, and light weight Gamma ray projector and X-ray Machines suitable for critical

inspections having high duty cycle. High intensity illuminators/viewers suitable for high density file interpretation with

adjustable intensity, adjustable aperture and foot switch.

3. BARC certified Radiographer and Site In charge to take care of radiation emergencies.

4. Experienced in house ASNT NDT Level III experts for providing techniques establishment, procedure preparation,

approval and consultancy services in RT.

5. Radiography inspection professionals qualified and certified to Level I, II as per ASNT recommended practice (SNT-TC-1A), and are approved by leading third party inspection authorities.

3. Magnetic Particle Testing: Magnetic particle testing (MT) also called as magnetic crack detection, Magnetic particle

inspection (MPI) is one of the most effective methods for finding both surface and subsurface or near surface flaws in


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ferrous materials at various stages of manufacturing. IQIS's experienced teams have highly skilled professional inspectors,

modern mobile, stationery, and portable type of equipments suitable for high productivity inspections and field tests andNDT Level III experts to provide consultation, technique establishing, procedure preparation and related services.

Magnetic particle testing is a method for detecting cracks and other discontinuities on surface and subsurface of ferro-

magnetic materials. Sensitivity of test is maximum at the surface and diminishes rapidly with increasing depth of sub-surface

defects. Detection of defects depend on the fact that when a material is magnetized, discontinuities which lie transverse to

the direction of magnetization cause distortion of the magnetic lines of flux and a leakage field is formed at or above the

surface, some of these particles are held by the leakage flux. These magnetically held collection of particles form outline of

effects and show location, shape and extent of the discontinuities. A number of factors such as direction and strength of the

magnetic field, magnetic character of the part, location and orientation of discontinuities and type of the magnetic powder

applied, affect the formation of the powder pattern, and therefore exact location of the flaw is indicated by the method.

The Magnetic particle inspection facility is equipped with

1. Modern high amperage magnetic particle testing equipments including electromagnetic yokes.2. Powerful mobile type of prod equipments.3. Stationery wet horizontal type equipments for inspection of mass production components, coils, solenoids, centralconductors.

4. High intensity black light kits for fluorescent inspection and demagnetizing equipments.5. Magnetic particle testing professionals are qualified and certified to MT Level I, II as per ASNT recommended practiceSNT-TC-1A, and are approved by leading third party inspection authorities.

6. Experienced in-house ASNT NDT Level IIIs for providing testing and consultancy services.4. Liquid / Dye Penetrant Testing: Liquid Penetrant Testing (PT) also known as Dye penetrant testing (DPT) is widely fordetecting surface opened flaws in critical engineering components, weldments and structures. 'IQIS' has experienced

certified inspectors and technicians for carrying out these tests effectively, ASNT NDT Level IIIs for establishing techniques

and preparing procedures. The material testing laboratory is equipped to facilitate inspections especially suitable for

aerospace, nuclear, automobile and other critical components inspection with established and qualified procedures.

Liquid penetrant inspection is the most reliable method of finding defects and discontinuities opened to the surface

especially in all non-porous materials. This method is widely used for testing of non-magnetic materials.

In PT method, a liquid/dye penetrant is applied to the surface of the product for a certain predetermined time specified by

codes, standards or specifications, after which the excess penetrant is removed from the surface. The surface is then dried

and a developer is applied to it. The penetrant which remains in the discontinuity is absorbed by the developer to indicate

the presence as well as the location, size and nature of the discontinuity. Penetrants used are either visible dye penetrant orfluorescent dye penetrant. The inspection for the presence of visible dye indications is made under white light while

inspection of presence of indications by fluorescent dye penetrant is made under high intensity ultraviolet (or black) light

under darkened conditions.

The Liquid penetrant testing facility is provided

1. With ultra sensitive, high sensitive, medium sensitive penetrant materials suitable for structural to aerospaceapplications.

2. Stationery Dye penetrant testing stations.


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3. Experienced in-house ASNT NDT Level IIIs for preparing, approving NDT procedures and providing consultancyservices.4. Liquid penetrant testing technicians and engineers are qualified and certified to PT/DPT Level I, II as per ASNTrecommended practice SNT-TC-1A.

5. Visual Testing: Visual testing (VT) is one of the oldest and most widely used NDE methods to derive a multitude of

useful information from a variety of material characteristics and properties. Visual examination is used in all stages of

manufacturing and fabrication as a means of verifying conformance to standards and ensuring the quality levels are met

and maintained in the final product. A great deal of specialized equipments, certified inspectors as per ASNT recommended

practice SNT-TC-1A, technicians and NDT level III's exists for this purpose and can provide ASME 'U' stamp consultation

on NDT.

Visual inspection is one of the most common and most powerful means of non-destructive testing. Visual testing requires

adequate illumination of the test surface and proper eye-sight of the tester. To be most effective visual inspection doeshowever, merit special attention because it requires training (knowledge of product and process, anticipated service

conditions, acceptance criteria, record keeping, for example) and it has its own range of equipment and instrumentation. It is

also a fact that all defects found by other NDT methods ultimately must be substantiated by visual inspection. VT can be

classified as Direct visual testing, Remote visual testing and Translucent visual testing. The most common NDT

methods MT and PT are indeed simply scientific ways of enhancing the indication to make it more visible. Often the

equipment needed is simple for internal inspection, light lens systems such as bore scopes allow remote surfaces to be

examined. More sophisticated devices of this nature using fibre optics permit the introduction of the device into very small

access holes and channels. Most of these systems provide for the attachment of a camera to permit permanent recording.

IQIS material testing facility contains light meters, welding gauges, magnifiers, lenses, other measuring instruments and

equipments for precise control of surface quality. Our NDT inspectors, engineers and technicians are qualified to NDT LevelI, II as per written practice prepared according to ASNT recommended practice SNT-TC-1A and in-house ASNT NDT Level

IIIs for providing inspection and consulting services.

6. Eddy Current Testing: It uses electromagnetic induction to detect flaws in conductive materials. There are several

limitations, among them: only conductive materials can be tested, the surface of the material must be accessible, the finish

of the material may cause bad readings, the depth of penetration into the material is limited by the materials' conductivity,

and flaws that lie parallel to the probe may be undetectable.

Eddy current inspection is one of several NDT methods that use the principal of electromagnetism as the basis for

conducting examinations. Several other methods such as Remote Field Testing (RFT), Flux Leakage and Barkhausen

Noise also use this principle.

Eddy currents are created through a process called electromagnetic induction. When alternating current is applied to the

conductor, such as copper wire, a magnetic field develops in and around the conductor. This magnetic field expands as the

alternating current rises to maximum and collapses as the current is reduced to zero. If another electrical conductor is

brought into the close proximity to this changing magnetic field, current will be induced in this second conductor. Eddy

currents are induced electrical currents that flow in a circular path. They get their name from eddies that are formed when

a liquid or gas flows in a circular path around obstacles when conditions are right.

One of the major advantages of eddy current as an NDT tool is the variety of inspections and measurements that can be

performed. In the proper circumstances, eddy currents can be used for:

Crack detection


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Material thickness measurements Coating thickness measurements Conductivity measurements for:

o Material identificationo Heat damage detectiono Case depth determinationo Heat treatment monitoring

Some of the advantages of eddy current inspection include:

Sensitive to small cracks and other defects Detects surface and near surface defects Inspection gives immediate results Equipment is very portable Method can be used for much more than flaw detection Minimum part preparation is required Test probe does not need to contact the part Inspects complex shapes and sizes of conductive materialsSome of the limitations of eddy current inspection include:

Only conductive materials can be inspected Surface must be accessible to the probe Skill and training required is more extensive than other techniques Surface finish and roughness may interfere Reference standards needed for setup Depth of penetration is limited Flaws such as delaminations that lie parallel to the probe coil winding and probe scan direction are undetectable7. Welding Inspection: Many characteristics of a weld can be evaluated during welding inspection, some relating to the

welds size, and others relating to the presence of weld discontinuities. The size of a weld can be extremely important, as it

can often relate directly to the weld's strength and associated performance, undersized weld's may not withstand stresses

applied during service. Weld discontinuities can also be important. These are imperfections within or adjacent to the weld,

which may or may not, dependent on their size and/or location, prevent the weld from meeting its intended performance.

Typically these discontinuities, when of unacceptable size or location, are referred to as welding defects, and can

sometimes cause premature weld failure through reduction of the weld strength or through producing stress concentrations

within the welded component.

The inspection of welds can be conducted for a number of reasons. Perhaps the most fundamental reason is to determine

whether the weld is of suitable quality for its intended application. In order to evaluate a weld's quality, we must first havesome form of measuring block with which to compare its characteristics. It is impractical to attempt to evaluate a weld's

quality without some form of specified acceptance criteria.

Weld quality acceptance criteria can originate from a number of sources. The welding fabrication drawing/blue print will

typically provide weld sizes and possibly other welding dimensional information, such as length and location of welds.

These dimensional requirements will usually have been established through design calculations or taken from proven

designs that are known to meet the performance requirements of the welded connection.

Acceptable and unacceptable levels or amounts of weld discontinuities for welding inspection are usually obtained from

welding codes and standards. Welding codes and standards have been developed for many types of welding fabrication


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applications. It is important to choose a welding standard that is intended for use within the particular industry or

application in which you are involved.Welding inspection can often require a wide variety of knowledge on the part of the welding inspector: the understanding of

welding drawings, welding symbols, weld joint design, welding procedures, code and standard requirements and inspection

and testing techniques, to name a few. For this reason many welding codes and standards require that the welding

inspector be formally qualified or have the necessary knowledge and experience to conduct the inspection services. There

are a number of welding inspection training courses available and a number of welding inspector certification programs

internationally. The most popular program used in the USA is administered by the American Welding Society (AWS). This

is the Certified Welding Inspector (CWI) program. Certification as a welding inspector: will typically require demonstration of

an individual's knowledge of welding inspection through passing examination.

In order to further appreciate the extent of welding inspection we will need to examine specific areas of inspection

techniques and welding inspection applications. I have chosen the following topics to provide this welding inspectionoverview:

Inspection and Testing for Welding Procedure Qualification Types of inspection used for these requirements and how they

can be an essential part of the overall welding quality system.

Visual Inspection Often the easiest, least expensive, and probably, if performed correctly, the most effective method of

welding inspection for many applications.

Surface Crack Detection Methods such as Liquid Penetrant Inspection and Magnetic Particle Inspection How they are

used and what they will find.

Radiographic and Ultrasonic Weld Inspection Methods known as Non Destructive Testing (NDT) and used typically to

examine the internal structure of the weld in order to establish the weld's integrity without destroying the welded component.

Destructive Weld Testing Methods used to establish weld integrity or performance, typically through sectioning and/orbreaking the welded component and evaluating various mechanical and or physical characteristics.

One of the main ingredients of a successful welding quality system is the establishment, introduction and control of a sound

welding inspection program. Only after the full evaluation of the weld quality requirements/acceptance criteria, the full

appreciation of the inspection and testing methods to be used, and the availability of suitably qualified and/or experienced

welding inspectors can such a program be established.8. Heat Treatment: Heat treatment of any type must be a planned, systematic action. Poorly performed heat treatment can

result in far more harm to material than any good which may result. Post weld heat treatment is designed to return a metal

as near as possible to its prefabrication state of yield, ultimate tensile and ductility. The rate of temperature rise, holding

time at temperature and rate of cooling are vitally important. Test coupons must be subjected to the identical conditions as

the vessel or part in order to obtain meaningful tensile and toughness (Charpy) test results.STRESS RELIEVING (post weld heat treatment): This is by far the most frequently used form of heat treatment which will

confront the authorized inspector. As a result of welding processes used to join metals together, the base materials near the

weldment, the deposited weld metal and, in particular, the heat affected zones transform through various metallurgical

phases. Depending upon the chemistry of the metals in these areas, hardening occurs in various degrees, dependent

mainly upon carbon content. Again, this is particularly true in the heat affected zone (HAZ) adjacent to the weld metal

deposit where the highest stresses due to melting and solidification result. Stress relieving, as the name implies, is designed

to relieve a proportion of these imposed stresses by reducing the hardness and increasing ductility, thus reducing danger of

cracking in the vessel weldments.


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The Code sections contain requirements for stress relieving, specifying rate of heating and cooling above 800oF and

requiring a holding temperature, usually one hour per inch of thickness of the material. The holding temperatures vary withthe P-numbers of the material which in turn are based on alloy content. As an example, P-1 through P-4 require 1100-F

holding temperature, P-1 being carbon steels, P-3 being carbon steels alloyed in relatively small percent with molybdenum,

manganese and vanadium. P-4 steels are the nickel steels, chrome-molys and nickel- chrome-molys. P-5, P-6 and P-7 high

alloy steels generally require a higher holding temperature ranging up to 1350oF. Some of the special steels now listed in

the Code sections call for even higher temperatures. Following the holding (soaking) time, controlled cooling down to 800oF

or lower is vitally important. Many high carbon steels are subject to surface cracking if cooled too rapidly.

QUENCHING AND TEMPERING: Oriented toward carbide steels such as carbon-moly, this process is designed to enhance

toughness as well as controlling yield strength and ultimate tensile strength of steel. The steel is heated to above its upper

critical temperature and quickly immersed in fresh water or brine to achieve rapid setting of the desired metallurgical

structure. Oil quenching is sometimes used. The usual practice is to quench until cooling reaches around 800oF, quicklyfollowed by a tempering period in a fired furnace in order to soften the martensitic structure and achieve the desired

mechanical properties in the material including a desired measure of ductility. The tempering process is, in effort, a stress

relieving process.

NORMALIZING AND TEMPERING: This process is used for virtually the same purposes as quenching and tempering. It

differs in that normalizing is accomplished by cooling in air in place of fast quenching in a liquid. Air normalizing, much

slower than liquid quenching, may be used by itself or the material may be subjected to a controlled furnace tempering

process in order to better control desired mechanical properties. Steel manufacturers will furnish material in either of the

above conditions when so specified on the purchase order or as required by the material specification. As a cautionary note;

alloyed steel mechanical properties are ultimately determined by the tempering process and if the materials are

subsequently welded during fabrication, subsequent stress relieving temperature, if used, should not exceed that of thetempering process, otherwise mechanical properties of the material may be adversely affected.

SOLUTION HEAT TREATMENT (solution annealing): While the Code sections state that heat treatment of austenitic

stainless steel (P-8) is neither required nor prohibited, this refers to post weld stress relieving. There are certain processes

to which this material may be subjected. These are performed almost exclusively by the material manufacturers due to the

fact that temperature ranges and holding time are critical and require careful controls, otherwise damage to the material can

result from either too high or too low a furnace temperature. Material manufacturers have the metallurgical staffs to

determine requirements. In solution heat treatment the material is subjected to a high heat, around 2000oF, and rapidly

cooled in liquid in order to achieve an evenly distributed solution of carbon and austenite in the metallurgical structure of the

material.

STABILIZING HEAT TREATMENT: Everything said in the first paragraph under solution heat treatment also applies tostabilizing heat treatment. In the latter process the material is cooled slowly in order to bring as much carbon as possible out

of solution and into evenly distributed concentrations apart from the austenite. Both solution heat treatment and stabilizing

heat treatment are used to reduce susceptibility to intergranular stress corrosion and embrittlement also to increase high

temperature creep strength.

PREHEATING: While most of us do not look upon preheating as a form of heat treatment, its use can contribute

substantially in reducing hardness in all three constituents of a weldment; the parent metal, the weld metal deposit and the

heat affected zone. As a weldment cools, it goes through various transformations in which molecules rearrange themselves.

If cooling is rapid, this rearrangement is arrested resulting in entrapment of stresses and hardening of the material with

coincident loss of ductility which is the highly desirable ability of the material to bend elastically, under stress. Preheating of


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the weldment area achieves better weld penetration and slows the cooling process, thus allowing added relief of stresses

and reduced hardening of the materials. The ASME Code sections take cognizance of the foregoing, in some casesallowing exemption from post weld stress relieving PROVIDED preheating of a specified temperature is used. Here again, a

word of caution is in order. Preheat, like any other heat treatment, must be carefully planned and used. Specific written

procedures should be provided for each individual use. Misuse, such as light surface heating, can do more harm than good.

A soaking heat and maintenance of interpass temperature throughout the weldment - and beyond, are recommended.

In all cases, high chrome-moly steels should be preheated prior to welding and post weld stress relieved at around 1400oF.

In summary, the authorized inspector (or ANI) is not assigned the duty of being an authority on metallurgy of all the various

ferrous and nonferrous materials used in boiler, pressure vessel or piping system fabrication. The various Code sections do,

however, require that results of heat treatment be made available to him for his review in order that he may assure himself

that temperature readings and holding (soaking) time conform with Code requirements. Only a diligent study of Code

requirements will enable him so make this decision. As previously mentioned, heat treatments which will confront the AI-ANIare for the most part preheating and postweld heat treatment, that is, stress relieving.

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