Engineering Steel Bar

Medium Carbon Steel Bar En8 BS EN 10083-2

Description:

EN8 / 080M40 is a medium carbon, medium tensile steel. This grade offers greater strength,toughness and wear resistance than mild steel.

Welding of EN8 is possible with advice from a competent welding consumables professional but welding is not recommended for through hardened, flame or induction hardened material.

Machinability is good and forming in the annealed condition is readily accomplished. Used for shafts, couplings, pins, rolls, spindles, torsion bars, gears, axles, cold headed parts etc.

Colour Code

Related Specifications

Steel Number	Steel Name	Grade	AISI/SAE	BS 970 1983
1.0511	C40	En8	1040	080M40

Typical Chemical Analysis

Chemical	C	Mn	Si	P	S
%	0.37 - 0.44	0.6 - 0.9	0.05 - 0.35	.06 max	.05 max

Bright Bar Size Range

Rounds	Rounds	Rounds	Rounds	Rounds	Rounds	Rounds	Rounds	Rounds
(mm)	(mm)	(mm)	(mm)	(mm)	(mm)	(mm)	(mm)	(mm)
5	25	50	85	140	3⁄8	11⁄8	21⁄2	8
10	30	55	90	150	9⁄16	11⁄4	23⁄4
12	32	60	100		5⁄8	11⁄2	3
16	35	65	110		3⁄4	13⁄4	31⁄2
20	40	70	120		7⁄8	2	4
22	45	80	130		1	21⁄4	5

Black Bar Size Range

Rounds	Rounds	Rounds	Rounds	Rounds	Rounds	Rounds	Rounds	Rounds
(mm)	(mm)	(mm)	(mm)	(mm)	(mm)	(mm)	(mm)	(mm)
45	75	105	135	165	200	260	350	450
50	80	110	140	170	210	270	370	480
55	85	115	145	175	220	280	380
60	90	120	150	180	230	290	390
65	95	125	155	185	240	300	410
70	100	130	160	190	250	310	430