BS 970:1991 817M40 Steel — Specifications & Listings

BS 970:1991

British Ni-Cr-Mo alloy steel, successor to EN24

Category: Alloy Steel

Grade Details

Grade	BS 970:1991 817M40
Standard	BS 970:1991
Description	British Ni-Cr-Mo alloy steel, successor to EN24
Applications	High tensile shafts, gears, crankshafts

Equivalent / Similar Grades

Chemical Composition (%)

C	Mn	Cr	Mo	Ni
0.36–0.44	0.45–0.70	1.00–1.40	0.20–0.35	1.30–1.70

Mechanical Properties

Typical Available Sizes

Round Bar	20mm–350mm dia
Flat Bar	25×10mm–250×75mm

Sizes are indicative. Contact seller for exact availability.

Active BS 970:1991 817M40 Listings on M-EX

No active BS 970:1991 817M40 listings at this time.