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Steel C22.8 (Mat.No. 1.0460, DIN C22.8, AISI 1022M)

Designation by Standards

Brand Name Ravne No. Mat. No. DIN EN AISI

C22.8 117 1.0460 C22.8 - 1022M

Chemical Composition (in weight %)

C Si Mn Cr Mo Ni V W Others

0.21 max. 0.40 0.65 max. 0.30 - - - - Al=0.033

Description

C22.8 is one of the very commonly used plain carbon steels. It has a nominal carbon content of

0.22% with approximately 0.65% manganese. It is a good combination of strength and ductilityand may be hardened or carburized.

Applications

C22.8 steel is typically used for moderate strength structural applications such as cold formedfasteners and bolts. It is often used in the case hardened condition.

Physical properties (avarage values) at ambient temperature

Modulus of elasticity [103 x N/mm2]: 210

Density [g/cm3]: 7.84

Soft Annealing

Heat to 870-980oC, cool slowly. This will produce a minimum tensile strength of 450 MPa.

Stress Relieving

Stress relieving to remove machining stresses should be carried out by heating to approx.

540oC, holding for 1-2 hours at heat, followed by air cooling. This operation is performed toreduce distortion during heat treatment.

Hardening

Harden from a temperature of 820-870oC followed by water quenching.

Tempering

Tempering temperature: Please ask.

Forging

Hot forming temperature: 1050-850oC.

Machinability

Machinability is good at 65% compared to 1112 carbon steel as 100% baseline.

Corrosion Resistance

Not corrosion resistant. The steel will rust unless protected.

Welding

Readily weldable by all of the standard methods.

Cold working

C22.8 steel is readily cold worked by all conventional methods. A stress relief anneal may be

needed after extensive cold work.

Forms manufactured: Please see the Dimensional Sales Program.

Disclaimer

The information and data presented herein are typical or average values and are not a guarantee

of maximum or minimum values. Applications specifically suggested for material described hereinare made solely for the purpose of illustration to enable the reader to make his own evaluation

and are not intended as warranties, either express or implied, of fitness for these or other

puposes. There is no representation that the recipient of this literature will receive updated

editions as the become available.

Unless otherwise specified, registered trademarks are property of Metal Ravne company.

Copyright 2013 by Metal Ravne. All rights reserved. Contact our Sales Office for moreinformation.

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