EN41B Nitriding Steel

Specification

EN41B is defined as Cr-Mo-Al Nitriding steel as per BS 970 Standard. This material can obtain high wear resistance, good toughness and ductility after nitriding which can give a hard ware resistant case up to 68HRC. After hardened and tempered.

Application

Typical applications include connecting rods, small extruders, valve stems, dies. It is widely used in the automotive, textile and general engineering industries. Suitable for applications requiring a resistance to wear, it is also suitable for other applications such as brick press plates, clutch plates, gudgeon, track and shackle pins.

Chemical Analysis %

C	Mn	Cr	Si	Mo	Al	P	S
0.35-0.45	0.40-0.65	1.40-1.80	0.10-0.35	0.15-0.25	0.90-1.30	0.050 Max	0.050 Max

Delivery condition
Annealed 240 HB max
Heat Treatment

Soft Annealing	Cooling	Stress Relieving	Hardening	Quenching	Hardness after quenching HRC
650°-700°C	Furnace	610°-650°C	800°-820°C	Air, oil 790°-810°C	61

Tempering °C

Tempering°C	100	200	300	400	500	600	700
HRC	61	60	59	57	57	56	56