EN31 Hot Forged Spheroidized Annealed Alloy Bearing Steel Round Bar

Categories	Round Forgings
Brand	fushun
Diameter range:	100-850 mm
Length range:	1-18 meter
Delivery condition	hot forged+spheroidized anealed
Surface condition	Black, Peeled, grinded
FOB port	SHANGHAI
Terms of Payment	L/C, D/A, D/P
Update Time	Apr 30,2025

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Detail Information

Introduction:

EN 31 is a excellent high carbon alloy steel which offers a high measure of hardness with compressive strength and abrasion resistance.
This Grade is quite often used for wear resisting machine constituents and for press instruments which don't advantage a extra complex satisfactory.

Application:

Acceptable for many automobile applications such as heavy duty gear, shaft, pinion, camshafts, gudgeon pins. / Machining components.

Standard

DIN 17230 1980 Ball and Roller Bearing Steels

Steel & Chemical:

EN 31

C 0.90-1.20%

Si 0.10-0.35%

MN 0.30-0.75%

S 0.050% max

P 0.050% max

Cr 1.00-1.60%

Heat treatment:

Soft annealing °C	Cooling	Hardness HB
780-800	Furnace	max. 207

Stress-relief annealing °C	Cooling
600 - 650	Furnace

1st pre-heating °C	2nd and 3rd	Hardening °C	Quenching	Tempering °C	Hardness after Teperature HRC
up to approx. 400 in an air-circulating furnace	800 and 900	800-820	810 °C Oil ,Quench	at least twice 150-200	61 – 63