Product Details

AISI 1045 C45 (EN8)/SM45C steel round bars with Black/Turned/Grinded

AISI: 1045 / 1049

NF EN 10083-1 / 02-97 C 45 E

Former designations 2 C 45 (NF EN 10083-1 / 91)
~ XC 48 H1 (NF A 35-552 / 86)

Chemical composition ( %)

C	Si	Mn	S*	Cr + Ni + Mo
0,45-0,50	≤ 0,40	0,50-0,80	0,015-0,035	≤ 0,63

Steel properties:

Medium carbon steel to be used either as-treated (quenched and tempered) or as-annealed (normalised), depending on the level of mechanical characteristics to be reached. Suitable for surface hardening.

Applications:

Quality parts for general mechanics: hydraulic jacks, pistons, axles, pinions for gears, bearings, etc.

Mechanical properties:

• achievable when normalised

Ø	U.T.S.	Y.S. 0.2%	Elongation
mm	MPa	MPa	%
d ≤ 16	≥ 620	≥ 340	≥ 14
16 < d ≤ 100	≥ 580	≥ 305	≥ 16
100 < d ≤ 250	≥ 560	≥ 275	≥ 16

• achievable on bars when hardened and tempered

Ø	U.T.S.	Y.S. 0.2%	Elongation	KV
mm	MPa	MPa	%	J
d ≤ 16	700-850	≥ 490	≥ 14	≥ 25
16 < d ≤ 40	650-800	≥ 430	≥ 16	≥ 25
40 < d ≤ 100	530-780	≥ 370	≥ 17	≥ 25

For grade XC 48 TS, the P content is 0.025% or less and the minimum hardness of the hardened and tempered layer is 57 HRC according to NF A 35-563/07-83. For this other possibility, please contact us.

Size range

• Round bars