Type 420 Stainless Steel is a martensitic grade providing both outstanding corrosion resistance and exceptional wear resistance. We stock it in a range of thicknesses from 0.10mm to 3.00mm thick in strip and coil. Our stock is hardened and tempered and suitable for flat springs and blades. We can offer a cutting or profiling service.
The hardness on our stock material is normally in the range of 48/52 HRC.
Alternatively we stock 301 grade strip which is an austenitic grade. 301 is suitable for forming springs without the need for subsequent hardening.
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Stainless Spring Steel Grades |
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Grade |
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C |
Mn |
Si |
P |
S |
Cr |
Mo |
Ni |
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301 |
Min |
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- |
- |
0 |
- |
16.00 |
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6.00 |
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Max |
0.15 |
2.00 |
0.75 |
0.045 |
0.030 |
18.00 |
3.00 |
8.00 |
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420 |
Min |
0.20 |
- |
- |
- |
- |
12.00 |
2.00 |
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Max |
0.28 |
2.00 |
0.75 |
0.040 |
0.030 |
14.00 |
3.00 |
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