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Mat.No. 1.1151/DIN Ck22/AISI 1022

CK22 steel is a slightly higher carbon and manganese content plain carbon steel than 1020. It is used for its somewhat greater strength while still having good ductility.
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  • Mat.No. 1.1151/DIN Ck22/AISI 1022

Designation by Standards

Mat. No.DINENAISI
1.1151Ck22-1022


Chemical Composition (in weight %)

CSiMnCrMoNiVWOthers
0.20max. 0.400.55max. 0.40max. 0.10max. 0.40--(Cr+Mo+Ni)= max. 0.63


Description
CK22 steel is a slightly higher carbon and manganese content plain carbon steel than 1020. It is used for it's somewhat greater strength while still having good ductility.

Applications
CK22 steel is typically used for moderate strength structural applications such as cold formed fasteners and bolts. It is often used in the case-hardened condition.

Physical properties (average values) at ambient temperature
Modulus of elasticity [103 x N/mm2]: 210
Density [g/cm3]: 7.85

Soft Annealing
Heat to 650-700oC, cool slowly in furnace. This will produce a maximum Brinell hardness of 176.

Normalizing
Normalizing temperature: 880-910oC/air.

Hardening
Harden from a temperature of 860-890oC followed by water quenching.

Tempering
Tempering temperature: 540-680oC.

Mechanical Properties in Hardened+Tempered Condition

Diameter (mm)0.2 % proof stress (N/mm2)Tensile strength (N/mm2)Elongation A5 (%)Reduction (%)Impact strength (J)
up to 16350550-700205055
17-40300500-600225055
up to 100230400-55027--
101-160210380-52025--


Diagram Tempering Temperature – Mechanical Properties

Click the image to enlarge the diagram.

Forging
Hot forming temperature: 1100-850oC.

Machinability
Machinability of CK22 steel is quite good, rating a 70% against the standard 1112 steel of 100% machinability.

Corrosion Resistance
This steel is not corrosion resistant. it will rust unless protected.

Welding
Weldable by all standard methods. However, for heavy sections the use of pre-heat and post- heat is advised.

Cold working
Cold working by conventional methods is readily accomplished. Following severe cold working an anneal may be required.

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 herein are 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 purposes. There is no representation that the recipient of this literature will receive updated editions as it becomes available.

Unless otherwise specified, registered trademarks are property of Metal Ravne company. Copyright 2015 by Metal Ravne. All rights reserved. Contact our Sales Office for more information.


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