75Cr1

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

 

Carbon0.74-0.80%Silicon0.25-0.45%
Manganese0.65-0.80%Phosphorous0.025% max
Sulphur0.010% maxChromium0.30-0.45%

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:

CK7510741.2003c75
CS70CS801075+Cr

Annealing temperature

75Cr1 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.