Nickel Chromium Molybdenum Steel  Hardened and Tempered – Round Grade: 817M40

Finish: Hot rolled

USEN 24T/USALOY 24T – Nickel Chromium Molybdenum Steel Hardened and Tempered – Colour: White/Brown BS 970: Part 1: 1983: 817M40, BS EN 10083-1: 1991: 34CrNiMo6 BS 970: 1955: EN24T
Nearest Equivalent to AISI SAE4340

Form of Supply:

Hot Rolled Rounds: Hardened and Tempered to T condition up to 250mm dia.

Stocked sizes –

Metric Diameters (mm) 25, 32, 35, 38, 40, 42, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100, 105, 110, 115, 120, 125, 130, 135, 140, 150, 155, 160, 170, 180, 190, 200, 210, 220, 230, 240, 250, 260, 280 & 300   Lengths – Standard bar lengths are 3/3.5 metres.