C67S spring steel strip hardened and tempered
C67s spring steel strip is a standard material with no corrosion resistance, equivalent to CK67, SAE1070. After hardened and tempered condition, it is widely used in rolling shutter door spring, saw blade, plaster trowel, scraper, putty knives, shoe insole, spring washer, etc. Under tempered condition, Blue, bright, yellow, black, surfaces are available by adjusting the temperature and times in the furnace.
C67S chemail composition:
| Carbon | 0.62-0.70% |
| Silicon | 0.15-0.35% |
| Manganese | 0.60-0.90% |
| Sulphur | 0.035% max |
| Phosphorus | 0.035% max |
We also supply other following materials in hardened and tempered condition:
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Delivery condition (strip,coil,sheet) |
Grade based on DIN Standard |
Hardened and tempered conditions |
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Hardness 29-55HRC |
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thickness |
Width |
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High carbon steel |
CK50,CK55, CK60,CK67, CK70,CK75,C75Cr1 |
0.15 |
8 |
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Alloy spring steel |
50CrV4, 51CrV4, 60Si2Mn |
0.20 |
8 |
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Stainless spring steel |
3Cr13-6Cr13 |
0.20 |
8 |
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Edge process |
slit edge; both rounded; one side round, one side slit; square etc |
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Finish surface |
polished (blue, yellow, white, grey-blue, black, bright) or Nature etc |
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Tolerance |
thickness +/ |
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Physical Property |
tensile strength - 1200-1850N/mm2 |
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