Description

42CrMo Steel Round Bar is an ultra-high strength steel with high strength and toughness, good hardenability, no obvious temper brittleness, high fatigue limit and multiple impact resistance after quenching and tempering, and good low-temperature impact toughness.

42CrMo Round Steel Bar is suitable for manufacturing large and medium-sized plastic molds that require certain strength and toughness. Corresponding to AISI 4140 Steel Bar, 4142 Round Steel Bar, DIN 42CrMo4 Steel Bar and JIS SCM440 Steel Rod. If you want to buy or want to know the price, please feel free to leave a message.

We can supply steel round bars of various specifications and grades, such as: Cr12 Too Steel Bar, EN8 Steel Round Bar, AISI 4140 Steel Bar, X45NiCrM04 (1.2767) Steel Round Bar, etc. Please feel free to inquire.

Features of 42CrMo Steel Round Bar:

42CrMo Steel Round Bar is a low-alloy high-strength structural steel, which is characterized by high strength, good toughness, high hardenability, strong corrosion resistance, etc. Among them, the most notable characteristics are its high strength and toughness.

At room temperature, the tensile strength of 42CrMo Steel Round Bar can be as high as 1930MPa, the yield point is 1270MPa, the elongation is 12%, and the section shrinkage is 40%.

This high strength and toughness make 42CrMo Steel Round Bar an ideal material for manufacturing heavy machinery parts that bear heavy loads, high strength and high wear resistance.

Applications of 42CrMo Steel Round Bar:

Due to its excellent mechanical properties and process properties, 42CrMo Steel Round Bar is widely used in various engineering fields.

1. Automotive and Rail Transportation: 42CrMo Steel Round Bars are used in engine connecting rods, crankshafts, transmission gears, rear axles, steering knuckles, high-strength bolts, etc.

2. Machinery Manufacturing: 42CrMo Steel Round Bars are used in large gears, spindles, sprockets, cams, and forgings (such as press connecting rods and die ejector pins).

3. Petroleum and Energy: 42CrMo Steel Round Bars are used in drill pipe joints, fishing tools, valves, and turbine shafts (suitable for deep well drilling tools below 2000 meters).

4. Aerospace and Military: 42CrMo Steel Round Bars are used in landing gear components, engine shafts, and fasteners (requiring specific heat treatment).

5. Mold Manufacturing: 42CrMo Steel Round Bars are used in medium to large-sized plastic molds and stamping dies (requiring wear resistance and impact resistance).

6. Heavy Equipment: 42CrMo Steel Round Bars are used in wind turbine gear shafts, hydraulic cylinder rods, and key structural components of mining machinery.

Specifications of the Steel Round Bar:

Brand	Carbon Steel, mm
Q195、Q215A、Q215B、Q235A、	1.5～ 25.4 ×780～2100× 2000 ～12000
Q235B、Q235C、Q235D	1.5～ 25.4 ×780～2100× 2000 ～12000
SS330、SS400	1.5～25.4 ×780～2100× 2000 ～ 12000
S235JR+AR、S235J0+AR、S275JR+AR、S275J0+AR	1.5～25.4 ×780～2100× 2000 ～ 12000
SPHC、SPHD	1.5～14.0×780～2100× 2000 ～ 12000
SPHE	1.5 ～ 6.0 ×780 ～2100× 2000 ～ 12000
DD11、DD12、DD13	1.5 ～ 8.0 ×780 ～2100× 2000 ～ 12000
HCP

Brand	Appropriate standard
Q195、Q215A ～ Q235D	GB/T 709
SS330、SS400	JIS G 3193
S235JR+AR、S235J0+AR	EN 10029
S275JR+AR、S275J0+AR	EN 10029
SPHC、SPHD、SPHE	JIS G3193
DD11、DD12、DD13	EN 10051
HCP	WJX(RZ)571

S45C	0.42~0.48	0.60~0.90	0.15~0.35	≤0.03	≤0.03	≤0.20	≤0.20	≤0.30	_	_	JIS G4051-2005
S20C	0.18~0.23	0.30~0.60	0.15~0.35	≤0.03	≤0.035	≤0.20	≤0.20	≤0.30	_	_	JIS G4051-2005
ASTM A36	≤0.22	0.50~0.90	≤0.40	≤0.040	≤0.050	≤0.20	≤0.20	≤0.30	≥250	400~500	ASTM A36/A36M-03a
ASTM A105	≤0.35	0.6-1.05	≤0.35	≤0.050	≤0.040	≤0.20	≤0.20	≤0.30	≥310	485~620	ASTM A105/A105M
SAE1013	0.11~0.16	0.50~0.80	_	≤0.040	≤0.050	≤0.20	≤0.20	≤0.30	_	_	ASTM A568/A568M-91a
SAE1015	0.13~0.18	0.30~0.60	_	≤0.040	≤0.050	≤0.20	≤0.20	≤0.30	_	_
SAE1017	0.15~0.20	0.30~0.60	_	≤0.040	≤0.050	≤0.20	≤0.20	≤0.30	_	_
SAE1018	0.15~0.20	0.60~0.90	_	≤0.040	≤0.050	≤0.20	≤0.20	≤0.30	_	_
SAE1020	0.18~0.23	0.30~0.60	_	≤0.040	≤0.050	≤0.20	≤0.20	≤0.30	_	_
S235JR	0.15~0.20	≤1.4	_	≤0.035	≤0.035	≤0.20	_	_	≥235	400~510	EN10025
S275JR	≤0.22	≤1.4	_	≤0.035	≤0.035	≤0.20	_	_	≥275	490~610	EN10025
ST37-2	0.17~0.20	≤1.4	_	≤0.045	≤0.045	≤0.20	_	_	≥235

Diameter (mm)	Theoretical Weight (kg/m)	Diameter (mm)	Theoretical Weight (kg/m)
5.5	0.186	13	1.04
6	0.222	14	1.21
6.5	0.26	15	1.39
7	0.302	16	1.58
8	0.395	17	1.78
9	0.499	18	2
10	0.617	19	2.23
* 11	0.746	20	2.47
12	0.888	21	2.72
22	2.98	63	24.5
* 23	3.26	* 65	26
24	3.55	* 68	28.5
25	3.85	70	30.2
26	4.17	75	34.7
* 27	4.49	80	39.5
28	4.83	85	44.5
* 29	5.18	90	49.9
30	5.55	95	55.6
* 31	5.92	100	61.7
32	6.31	105	68
* 33	6.71	110	74.6
34	7.13	115	81.5
* 35	7.55	120	88.8
36	7.99	125	96.3
38	8.9	130	104
40	9.86	140	121
42	10.9	150	139
45	12.5	160	158
48	14.2	170	178
50	15.4	180	200
53	17.3	190	223
* 55	18.6	200	247
56	19.3	220	298
* 58	20.7	250	385
60	22.2

Standards and Classifications

Products	Round Steel bar
Dia	5.5mm~650mm
Length	3m,6m,9m,12m
Standard	ASTM A 615 Gr 40/60,BSS4449 Gr460B,500B etc
Material	3Cr2Mo/1.2311/1.2312/P20/1.2738/718H/P20+Ni/1.2316/1.2083/4Cr13 /sus420j2/420/S136/NAK80H13/1.2344/SKD61/5CrNiMo/SKT4/1.2714 Cr12/D3/1.2080/Cr12MoV/D2/1.2379/SKD11/9CrWMn/O1/1.2510/SKS3 /DC53 40Cr/5140/35CrMo/42CrMo/4140/1.7225 C45/C50/1045/1050/S50C/S45C/T10/T8 M2/1.338/SKH51
Surface	ASTM，AISI，JIS，GB， DIN，EN
Technique	Hot rolled / cold rolled
Surface	Black Finish ,Oiled,Shot Blasted,Spray Paint,Coated,Galvanized,
Surface	Or as Your Request
Package	In bundle, no other package or wrapped with waterproof, or as customers’ requirement
Payment Term	T/T, L/C at sight,West Union,Paypal
Price Term	FOB,CRF,CIF,EXW all acceptable