C67S, CK67, 1.1231, Spring Steel Strip

 

Material No.: C67S 1.1231 German standard: DIN EN 10132 International steel grades: SAE:1070 JIS: S70CM Unalloyed steel for springs as belleville washers, spring plates and stabilizer bars for motor vehicles Hot forming and heat treatment: Forging or hot rolling: Normalising: Soft annealing: Hardening: 1100 – 800°C 810 – 840°C/air 680 – 710°C/furnace 815 – 845°C/oil min. 59 HRC or 670 HV as quenched

 

Dimensions 

Thickness: 0.1 to 10mm

Width: 10 to 1500mm

*accept nonstandard size, please contact with our sales.

 

Chemical composition

name	number	C	Si	Mn	P max.	S max.	Cr	Mo max.	Ni
C67S	1.1231	0,65 to 0,73	0,15 to 0,35	0,60 to 0,90	0,025	0,025	max. 0,40	0,10	max. 0,40

 

Mechanical properties

Steel designation		delivery condition
		annealed (+A) or annealed and skin passed (+LC)				cold rolled (+CR)		quenched and tempered (+QT)
name	number	Proof strength max. Mpa	Tensile strength max. Mpa	Elongation % min.	HV max.	Tensile strength max. Mpa	HV max.	Tensile strength Mpa	HV
C67S	1.1231	510	640	16	200	1140	315	1 200 to 1 900	370 to 580

 

Delivery condition

-annealed or annealed and skin passed(+A or +LC);

-cold rolled(+CR);

-quenched and tempered(+QT).

 

Surface finish

1 Grey/blue oxide finish:unpolished;

2 bright tempered:unpolished

3 polished

4 polished and coloured:blue or yellow colour

 

Inspection and testing

verification of the dimensions

visual examination of the surface quality

Chemical analysis

Extent of testing

Tensile and bending tests

Tolerances on shape