ASTM 4135 steel bar/astm 4135 alloy round steel bar

1.GB1499-1998/BS4449 2.certificate: CE ISO9001:2008 3.confirmed time of delivery 4.excellent quality & competitive price

Chinese Standard:16Mn,20Mn,30Mn2,30Mn5,40Cr,Q345D,Q345E,Q390;42CrMo,

20CrMo,38CrMoAl,40CrNiMo;48CrMo,5CrNiMo;

Japanese Standard:SCM415,SCM420,SCM440,SNCM439,SNCM220; SACM645

USA Standard:SAE4140,SAE4130,SAE9840,SAE4340,AISI4145H,SAE4150,SAE8620,

European Standard:42CrMo4,25CrMo4,34CrNiMo6,39CrNiMo3,17NiCrMo6,18CrNiMo7-6,

S355J2G3,ASTM A105,ST52-3,16MnCr5,20MnCr5,16MnCrS5,20MnCrS5,21CrMoV511,

56NiCrMoV7,18NiCrMo5,30CrNiMo8,34NiCrMo16,41CrAlNi7,34CrAlNi7,B7,B16,F11,

F12,F22,F5,F9,51Cr4.

ALLOY STRUCTURAL STEEL BAR
GRADES				CHEMICAL COMPOSTIONS%  %
	JIS	AISI	DIN	C	Si	Mn	P	S	Ni	Cr	Mo	OTHERS
40Mn2	SMn438	1340	42Mn6	0.37 0.44	0.17 0.37	1.40 1.80	≤0.035	≤0.035	≤0.30	≤0.30
40Cr	SCr440	5140	41Cr4	0.37-0.44	0.17 0.37	0.50 0.80	≤0.035	≤0.035	≤0.30	0.80 1.10
15CrMo	SCM415		16CrMo44	0.12-0.18	0.17-0.37	0.4-0.7	≤0.035	≤0.035	≤0.30	0.8-1.1	0.4-0.55
20CrMoA	SCM420	4118	20CrMo5	0.17 0.24	0.17 0.37	0.40 0.70	≤0.025	≤0.025	≤0.30	0.80 1.10	0.15 0.25
35CrMo	SCM435	4135	34CrMo4	0.32 0.40	0.17 0.37	0.40 0.70	≤0.035	≤0.035	≤0.30	0.80 1.10	0.15 0.25
42CrMo	SCM440	4140	42CrMo4	0.38-0.45	0.17 0.37	0.5-0.8	≤0.035	≤0.035	≤0.30	0.9-1.2	0.15 0.25
20CrMn	SMnC420	5120	20MnCr5	0.17 0.23	0.17 0.37	0.90 1.20	≤0.035	≤0.035	≤0.30	0.90 1.20
40CrNiMoA	SNCM439	4340	36MiCrMo4	0.37 0.44	0.17 0.37	0.50 0.80	≤0.025	≤0.025	1.25 1.65	0.60 0.90	0.15 0.25
40CrMnMo		4142		0.37 0.45	0.17 0.37	0.90 1.20	≤0.035	≤0.035	≤0.30	0.90 1.20	0.20 0.30
40CrNi	SNC236	3140	40NiCr6	0.37 0.44	0.17 0.37	0.50 0.80	≤0.035	≤0.035	1.00 1.40	0.45 0.75
12CrNi3	SNC836	3130	14NiCr14	0.10 0.17	0.17 0.37	0.30 0.60	≤0.035	≤0.035	2.75 3.15	0.60 0.90
Y12	SUM21	B1112		0.08 0.16	0.15 0.35	0.70 1.00	0.08 0.15	0.10 0.20
Y40Mn	SUM42	1212		0.37 0.45	0.15 0.35	1.20 1.55	≤0.050	0.20 0.30

1. Process:  EAF + LF + VD + Forged + Heat Treatment (optional)

2. Delivery condition: Hot forged +Rough machined (black surface after Q/T)+ Turned (optional)

or cold-drawn.

3. Technical Data: According to the customer's requirement of Chemical Composition, Physical Properties and Mechanical Testing

4. Test: ultrasonic test according to SEP 1921-84 3C/c

5. Material details will be as per agreed technical specifications

ASTM 4135 steel bar/astm 4135 alloy round steel bar