EN26

2½% Nickel Chromium Molybdenum alloy steel with higher Carbon content. Supplied in the hardened and tempered condition. Higher strength than EN25

Configure & Buy

Product Features

Chemical Analysis

C	Si	Mn	Ni	Cr	Mo	S	P
0.40	0.25	0.60	2.50	0.65	0.55	0.02	0.02

Nearest Standards

AS	DIN	BS
X9940	1.6745, 40NiMoCr10-4	EN26, 826 M 40

Heat Treatment

Forge	Normalize	Anneal	Stress relieve	Harden	Temper
850-1050 °C, slow furnace cool.	850-880 °C, air cool.	650-700 °C, Cool slowly in controlled furnace	In the quenched and tempered condition, about 30-50 °C below the tempering temperature. Air cool. In the annealed condition, 600-650 °C. Air cool.	830-860 °C, oil quench	540-680 °C hold for 1 hour (min). at temperature, air cool. (see tempering chart)