Activating Your IdeasStainless steel for the nuclear industry

Team up with a global leader. We open new dimensions in stainless steel.

An impeccable track record, all over the world

We have an impressive track record in innovating stainless steels for the nuclear industry. This covers half a century of trusted deliveries to the world’s leading nuclear engi-neering companies and equipment manufactures, for use in both new plants and plant modernisations all over the world. From Europe and the U.S. to South America and Asia – we are a partner that you can count on.

Meeting your needs across the nuclear cycle

Core and secondary parts of most reactor types in service today such as PWR/VVER, BWR, CANDU, AGR and

fast breeder reactors are built from our stainless steel, as are reprocessing plants and research reactors. The nuclear decommissioning and waste storage industry is also a prime user of high quality stainless for different types of transport or storage canisters and boxes for low- to high-level waste. You can trust our steel to meet your needs in terms of tight chemical compositions and high cleanli-ness, as well as strength and corrosion resistance. Nuclear projects have a higher standard of product safety and reli-ability, requiring partners with strong experience. What makes Outokumpu an industry leader is uncompromised premium quality products combined with expertise and technical support.

Our roots trace back to the very beginning of stainless

The company that makes up Outokumpu has a rich tradi-tion that traces back a century to the very beginnings of stainless steel. Over the years we have gained distinct ex-pertise in diverse industries and today this expertise is be-ing put to your benefit not just in core nuclear processes, but also in secondary and auxiliary applications as diverse as seawater handling equipment, wastewater tanks or glove boxes.

Nuclear energy is a vital component of a clean energy strategy. Nuclear generation is currently avoiding over two billion tonnes of CO2 emissions each year, and more than 200 new reactors are expected to come on stream within the next decade. As a world leader in stainless steel, we contribute to safety and reliability by supplying stain-less steels of the highest quality for a wide range of engineered components in all stages of the nuclear cycle.

“We are glad to have teamed up with Outokumpu in several large projects such as Laser Megajoule and EDF’s 900 MW reracking project. Outokumpu has kept on delivering stainless steels of the highest quality, and we have kept on building products that meet our customer’s most exacting require-ments. I commend Outokumpu for the excellent technical support we have received throughout the duration of these projects.”

- Bruno Rajalu, Purchasing Manager, Réel, France

Photo courtesy of Réel.

Photo courtesy of Réel.

Photo courtesy of Réel.

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You will find us just around the corner

All our operations are geared towards maintaining close contact with you and to make the process of purchasing stainless steel as easy as possible. Our dedicated teams serve you from our main production facilities in Finland, Sweden, UK and USA, supported by our stock & process locations in all of the key markets. Wherever in the world you may be – you will find us just around the corner.

E-tools for product selection and more

In order to further streamline the ordering process, we have introduced easy-to-use online tools for your benefit. The tools allow you to search and select from our wide range of products, learn about their corrosion, welding and other properties, and send in any enquiries that you may have. The tools are available 24 hours a day. To learn more, visit Outokumpu.com > Products >Useful Tools Online.

All the support you need. Just around the corner.

Grade selection advice and technical support

Teaming up with Outokumpu also means gaining ac-cess to industry-leading service and support. This covers everything from grade selection advice through to com-prehensive materials testing services. We understand the industry’s requirements and our plants have the relevant qualifications and approvals or streamlined processes to obtain them.

Materials testing, supported by R&D

To help you choose the best solution among alternatives, we offer the option to test candidate materials on your premises as well as the testing services of our state-of-the-art corrosion lab. We have built up valuable industry knowledge through many years of cooperation with major reactor technology providers, engineering companies and design institutes. Today, we have more than 200 special-ists on corrosion, welding and fabrication to support you throughout the particulars of your project.

Outokumpu.com > Products >Useful Tools Online

Our locations globally

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Taking the nuclear industry ahead. With certified quality.

At the forefront of new grade development

We take special pride in having innovated many new stainless steel grades for a host of industries, with many of these innovations also finding use in nuclear plants. For example, our lean duplex grade Outokumpu LDX 2101® is delivering significant savings in mechanical modules (see p. 11), while our superaustenitic grade Outokumpu 654 SMO® offers superior mechanical and corrosion properties in more aggressive environments such as sea-water handling systems.

Low cobalt grades for core processes

By careful scrap selection and the use of high purity nickel and other alloying elements, we are able to offer grades with restricted cobalt content in the relevant safety classes of 0.2%, 0.05% or even lower. We can also control the content of minor elements such as carbon, phosphorus, sulphur, titanium or niobium, and reach low permeability and ferrite levels.

Outokumpu and the environment

We are not just a leading international stainless steel producer, but also one of the top companies in our field when it comes to environmental performance. We have an exceptional track record in reducing the carbon footprint of our operations, and the recycled content of our stainless steel is 90% – much higher than the global industry aver-age of 60%.

Certified products, quality control and documentation

Our production plants are known for their outstanding efficiency and comply with the strictest quality, safety and environmental standards. As an example one of our testing laboratories is accredited according to ISO17025:2005. We are also well acquainted with leading trade standards and regulations such as ASME NQA-1, NCA-3800, HAF003, RCC-MR, GOST, JIS as well as specific pro-ject specifications. This ensures not only that we produce stainless steel with industry leading tolerance accuracies, but also that our grades for the nuclear industry meet the relevant industry standards with certified quality docu-mented in detail.

Photo courtesy of TVO/OL4 modelling photo.

Photo courtesy of TVO/Hannu Huovila.

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Each nuclear process sets its own special demands on the materials used and therefore it is of paramount importance that they are chosen with care. We provide here some examples to illustrate grades of choice for key nuclear industry applications. For more specific information, we invite you to get in touch with an Outokumpu sales representative near you.

From the reactor core to spent fuel canisters. Ideas to inspire you.

Key grades for the nuclear industry

Outokumpu 304 NG tube sheets for CANDU reactorsReactor type: CANDUApplication: Calandria tube sheetsBasic spec: Large, heavy plates according to ASME standardSpecial requirements: Low cobalt content, ultra sonic inspection, high clean- liness, grain size control, special surface treatmentComment:Maximum plate width 3200 mm to minimize number of welds

Outokumpu strip electrodeApplication: Joint and overlay welding steam separatorsBasic spec: Grade 309L is typically used in the

nuclear industry. It has optimized fer-rite content and low contents of nucle-ar contaminants such as cobalt (below 0.05%), copper, boron and vanadium.

Comment:Typically supplied in thickness 0.5 mm.

Outokumpu super austenitics for seawater cooling condensersApplication: Condenser tube sheets, condeser tubes and strainersGrades: Outokumpu 254 SMO®, 4529, 4565 and 654 SMO®Basic spec: EN/ASME/ASTMSpecial requirements: High alloyed grades efficiently combat corrosionComment:Outokumpu grades perform in the toughest environments for lifecycle advantage.

Outokumpu Radionox® for fuel transport/storage Application: Fuel storage and handling tanks/casks and transport basketsGrade: 304L boronatedSpecial requirements: Neutron absorption (radioactive shielding) of nuclear fuel Comment:Thickness 2-20 mm and boron level 1-2%.

Stainless reinforcing bar for plant structuresApplication: Prolonged plant lifetime especially in marine environmentsGrade: Outokumpu austentic or duplexSpecial requirements: Corrosion resistance to combat carbonation and ingress of chloride ions. The new GEN III+ plants are designed for 60-80 years service life.Comment:Carbon steel rebar design inspection and mainte-nance costs are an important issue today.

Outokumpu duplex for transport/storage canisters Application: Magnox canistersGrade: Superduplex Outokumpu 2507, 80 mm thick plateSpecial requirements: Fuel canisters undergo severe crash tests, strength is of paramount im- portance. Comment:Duplex and superduplex grades are more than twice as strong as their austenitic equivalents 304 and 316.

Outokumpu EN ASTM Cr Ni Mo Others***** PRE** Rp0.2*** Rm***

4541 1.4541 321 17.3 9.1 - Ti 17 200 500 Austenitic

4307 1.4307 304L 18.1 8.1 - - 18 200 500 Austenitic

4404 1.4404 316L 17.2 10.1 2.1 - 24 220 520 Austenitic

4435 1.4435 316L 17.3 12.6 2.6 - 26 220 520 Austenitic

4429 1.4429 316LN 17.3 12.5 2.6 0.14 N 28 280 580 Austenitic

4529 1.4529 N08926 20.5 24.8 6.5 0.20 N, Cu 45 300 650 Super Austenitic

4565 1.4565 S34565 24 17 4.5 0.45 N, 5.5 Mn 46 420 800 Super Austenitic

254 SMO® 1.4547 S31254 20 18 6.1 0.20 N, Cu 43 300 650 Super Austenitic

654 SMO® 1.4652 S32654 24 22 7.3 0.50 N, 3 Mn, Cu 56 430 750 Super Austenitic

LDX 2101® 1.4162 S32101 21.5 1.5 0.3 0.22 N, 5 Mn 26 450**** 650 Lean Duplex

LDX 2404® 1.4662 S82441 24 3.6 1.6 0.27 N, 3 Mn 34 480**** 680 Lean Duplex

2304 1.4362 S32304 23 4.8 0.3 0.10 N 26 400 630 Duplex

2205 1.4462 S32205 22 5.7 3.1 0.17 N 35 460 640 Duplex

2507 1.4410 S32750 25 7 4 0.27 N 43 530 730 Super Duplex

*Steel grades according to ASME and RCCM also available**PRE = %Cr + 3.3x%Mo + 16x%N***[MPa] Hot rolled plate, min values at 20°C according to EN 10088****Not yet in EN 10088, Rp0.2 according to ASTM A240*****Additional special requirements on composition apply for Nuclear Grades

Photo courtesy of Balcke Dürr.

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Outokumpu Radionox® for fuel transport and storage

The isotope B10 as part of the boron contained in stain-less steel grade 304L provides neutron absorption and thus guarantees safety against criticality. The boron content in 304L is available in a defined range between 1.00 and 2.00 %. This specialty is available as hot rolled plate in thicknesses from 2 to 20 mm.

The latest addition to Outokumpu’s extensive productrange for nuclear applications is lean duplex OutokumpuLDX 2101® plate for mechanical modules in GEN III nuclear plants incorporating Westinghouse AP 1000 design. The first deliveries have been for walls and floors of modules containing different types of equipment in Sanmen and Haiyang in China, and also for Vogtle and Summer in USA.

The modules are very large sandwich panels that haveLDX 2101® on the inner walls, painted carbon steel onthe outer walls and concrete in between. The LDX 2101®plates not only serve as outer reinforcement and radiationshield, but also provide a corrosion resistant leak barrierin the unlikely event that leaks should occur inside themodules.

Outokumpu went through rigorous audits and inspections and extended its dimension programme to make the long-est LDX 2101® plates ever produced. Ro-Ro shipment ensured successful delivery in a very tight schedule.

Modular building is a new trend in the construction ofnuclear plants and replaces traditional rebar/stick building.The distinct advantage of LDX 2101® is that it not onlyprovides corrosion resistance corresponding to standardaustenitic grades 304 or 316, but also a much higherstrength, thereby allowing a thinner material to be usedfor significant cost savings.

CASE HIGHLIGHT:

Outokumpu LDX 2101® for mechanical modules

Outokumpu Radionox®, which has been our brand name for more than 25 years, derives from the words radioactive shielding and inoxidable. This specialty stainless steel is used in areas where spent nuclear fuels need to be stored either in at-reactor pools or outside power plants in temporary storage locations. Also made from our Radionox® stainless steel are containers for special transport vessels.

Photo courtesy of Shaw Group.

Photo courtesy of Shaw Group.

Photo courtesy of Réel.

Photo courtesy of MPE / Butting.

Photo courtesy of Réel.

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Delivering a comprehensive range of world-class products

Coils and sheets

We produce stainless steel coils from 0.1 mm up to 12 mm thick, in widths up to 2000 mm. The coils can be cut to length or slitted on request in one of our many coil service centres.

Heavy plates (quarto)

Our heavy plates are available from 2 up to 120 mm thick and 3200 mm wide. These can be further processed in many ways to meet your specific requirements.

Tubular products

We are one of the world’s leading producers of welded process pipes, fittings, heat exchanger tubes, hygienic tubes and box sections. We supply welded pipes in sizes ranging from 18 to 2032 mm in outside diameter, wall thicknesses of 1 to 50.8 mm and lengths up to 12 metres.

Long products

We offer a comprehensive selection of slab, bloom, billet, and rod coil and bar, including stainless reinforcing bar. Each of these products is available in a broad range of sizes in both standard and special grades.

Finishing touch

Our service centres, located in the key markets, have strong capability to further process our steels to meet your particular needs. The available services include drilling, bending and edge preparation as well as surface finishing, plasma and water jet cutting and tailor-made parts.

Our offering for the nuclear industry is nothing less than the best grades available anywhere in the world. These are delivered in a comprehensive range of forms combined with full access to our industry leading technical support – wherever you may be based.

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Outokumpu – Activating Your Ideas

What distinguishes Outokumpu is our total customer commitment in all that we do. You have the idea. We offer the world’s best stainless steels to meet your needs.

We are committed to excellence every-where. Not just in product development and customer service, but also in logistics and the development of new technologies for the environment.

Our technological leadership allows us not only to tailor solutions to meet your spe-cific needs, but also to work with you for a host of services on top of the product.

Our global network supports you all the way from studying your needs on-the-spot to providing professional help in quality and production planning.

We sustain value by continuously developing our people and putting the customer at the heart of everything we do – let us activate your ideas.

Photo courtesy of TVO/Hannu Huovila.

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Activating Your Ideas Outokumpu is a global leader in stainless steel with the vision to be the undisputed number one. Customers in a wide range of industries use our stainless steel and services worldwide. Being fully recyclable, maintenance-free, as well as very strong and durable material, stainless steel is one of the key building blocks for sustainable future.

What makes Outokumpu special is total customer focus – all the way, from R&D to delivery. You have the idea. We offer world-class stainless steel, technical know-how and support. We activate your ideas.

www.outokumpu.com

This document is for information only and seeks to provide professionals with the best possible information to enable them to make appropriate choices. Although every effort has been made to ensure the accuracy of the information provided in this document, Outokumpu can not accept any responsibility for any loss, damage or other consequence resulting from the use of this publication. The information provided herein may be subject to alterations without notice.

This document does not constitute a recommendation or a contractual commitment on the part of Outokumpu. Product selection is the responsibility of the specifiers, designers and builders, who are solely responsible for rendering the finished unit suitable for the use for which it is intended. It is the customer’s sole responsibility to ensure that the product is suitable for the use for which it is intended. Outokumpu shall not provide any guarantee in this respect.

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