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Ck 101 | 1.1274 Material Datasheet

Material Standard Values

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Material Description

Material Number	Material Name	Material Number (single)	Standard	Scope	Standard Status	Country	Predecessor	VDA 231-106 classification	Application temperature [°C]
1.1274 (WL 1.1274 : 2012-10)	Ck 101	1.1274	WL 1.1274 : 2012-10	Supersedes WL 1.1274 : 1978-12	Valid	Germany	C100S	1.1.1	≤ 200	1)
1) Remark: The unalloyed hardenable spring steel for aerospace applications is usually used for springs and spring parts with static loading up to 200°C, for cyclic loading up to 125 °C. For temperatures up to 260°C the 1.4324 is preferred. The steel is not corrosion resistant and not weldable. During the heat treatment a decarburisation is to be avoided.

Chemical Composition

C [%]	Mn [%]	P [%]	S [%]	Si [%]	Remainder
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Material Compliance

REACh	RoHS
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Mechanical Properties

Semi-finished Product	Condition	Condition Number	Nominal Size [mm]	Temperature [°C]	Specimen Direction	Tensile Strength [MPa]	Elongation A80 [%]	Hardness HV
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Physical Properties

Condition	Temperature [°C]	Density [g/cm³]	Young's Modulus [GPa]	Shear Modulus [GPa]	Thermal Conductivity [W/(m*K)]	Electric Conductivity [MS/m]	Magnetizeability
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Welding and Joining

Welding and Joining - Evaluation
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Heat Treatment

Heat Treatment	Step	Temperature [°C]	Holding Time [h]	Medium
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Formability - Bending - Folding

Semi-finished Product	Condition	Nominal Size [mm]	Specimen Direction	Bend Factor (90°)	Bend Factor (180°)
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Cross Reference

Material Name	Country	Standard
Ck 101	Germany	DIN 17222	1)
C100S	Europe	EN 10132-4	1)
1095	USA	SAE/AISI 1095	1)
G10950	USA	UNS	2)
SAE 1095	USA	AMS 5121	1)
SAE 1095	USA	AMS 5122	1)
AISI 1095	USA	MIL-S-46	1)
C 100	Great Britain	BS 1449/1	1)
C 100	Italy	UNI 3545	1)
1.1274.2	Germany	WL 1.1274-1	3)
1.1274.9	Germany	WL 1.1274-1	3)
1) Source: WL 1.1274-100 : 2012-10
2) Source: Metals & Alloys in the Unified Numbering System, SAE/ASTM, 11th Edition, 2008
3) Source: WL 1.1274-1 : 2012-10

Producer/Supplier/Trade names

Tradename	Supplier
THYROFORT C100S	Deutsche Edelstahlwerke Specialty Steel GmbH & Co. KG, Witten
C100S	HEINE + BEISSWENGER Stiftung + Co.KG, Fellbach
20C	SANDVIK Materials TEchnology Deutschland GmbH, Düsseldorf
C100S	Stahlrump GmbH & Co.KG, Iserlohn
C100S	pauly STAHLHANDEL, Essen
1.1274	INTERSTAHL Service GmbH, Wetter