Introduction
75CR1 is a variation on En10132 C75, and US specification 1075.
It is a high carbon steel strip grade supplied in either the hardened and tempered or annealed condition.
The addition of chromium facilitates the heat treatment process and allows higher hardness to be achieved than the standard C75.
Whilst it can and is used for a variety of spring and tool applications, it has found particular popularity in the manufacture of saws.
BSS stock 75Cr1 from 1mm through to 5mm in the hardened and tempered condition and up to 10mm in the annealed condition.
Composition
| Carbon | 0.74-0.80% | Silicon | 0.25-0.45% |
| Manganese | 0.65-0.80% | Phosphorous | 0.025% max |
| Sulphur | 0.010% max | Chromium | 0.30-0.45% |
Our range
We supply 75Cr1 in a range of sheet sizes, from 1mm to 9.35mm thick.
The hardness range is 42-44HRC, 48-50HRC and in annealed condition in the thicker gauges.
Please contact us on 0114 244 0527 (option 2) to make an enquiry.
Heat treatment advice
| Recommendation for hardening |
| 830-860 C / 1530-1580 F |
| Quenching Medium Oil |
Related Specifications
75Cr1 is related to:
| CK75 | 1074 | 1.2003 | c75 |
| CS70 | CS80 | 1075+Cr |
Annealing temperature
Common Applications
- Clutch Plates
- Springs
- Knives and Blades
- Hand Tools
- Agricultural Tools
- Shims
- Doctor Blades
- Biomass Stirrers
We do not supply Mill Certificates with orders, we only supply Certificates of Conformity.
Please contact us on 0114 244 0527 (option 2) to make an enquiry.
