CS70 is a high carbon spring steel, and part of the UK designation BS1449. Used in the manufacture of a wide variety of springs, it is normally purchashed in the annealed condition. Annealed material allows the steel to be formed and shaped prior to hardening
BSS Steelstrip can supply CS70 in thicknesses from 0.20mm through to 3.25mm and close equivalents (75CR1) up to 8.30mm in coil strip or sheet
CS70 is equivalent to AISI/ SAE 1070, Din CK67 and Euronorm EN10132 C67S
|
Standard |
Grade |
C % |
Si % |
Mn % |
S % |
P % |
|
BS1449 (UK) |
CS70 |
0.65/0.75 |
0.05/0.35 |
0.50/0.90 |
0.025max |
0.025max |
|
EN10132 (Europe) |
C67S |
0.65/0.73 |
0.15/0.35 |
0.60/0.90 |
0.025max |
0.025max |
|
DIN 17222(Germany) |
CK67 |
0.65/0.72 |
0.25/0.50 |
0.60/0.80 |
0.025max |
0.025max |
|
SAE (USA) |
1070 |
0.64/0.76 |
0.15/0.30 |
0.60/0.90 |
0.035max |
0.035max |
