42crmo4 4140 1.7225 Carbon Steel Round Bars-Luoyue Precision Metal

Variant	Cast	Di	Weldability		C %	Si %	Mn %	P %	S %	Cr %	Ni %	Mo %	V %	Cu %	Al %	B %	DI %
42CrMo4 M (6082), MoC 410 M	CC	5.6	CEV 0.82max	Min	0.38	0.15	0.60	-	0.020	0.90	-	0.15	-	-	-	-	-
Pcm 0.55max	Max	0.45	0.40	0.90	0.025	0.035	1.20	-	0.30	-	-	-	-	-
42CrMnMo4-4,SAE 4140 (6115)	CC	6.8	CEV 0.87max	Min	0.40	0.15	0.75	0.000	0.000	0.90	-	0.15	-	-	-	-	-
Pcm 0.59max	Max	0.45	0.35	0.90	0.020	0.025	1.10	-	0.25	-	-	-	-	-
L7 ASTM A320 (6137)	CC	6.39	CEV 0.86max	Min	0.38	0.15	0.75	-	-	0.90	-	0.15	-	-	-	-	-
Pcm 0.585max	Max	0.45	0.35	0.90	0.025	0.025	1.10	-	0.25	-	-	-	0.0030	-
SB 9288	CC	4.9	CEV 0.8max	Min	0.40	0.15	0.75	-	0.020	0.90	-	0.15	-	-	0.015	-	-
Pcm 0.57max	Max	0.43	0.25	0.90	0.025	0.035	1.10	0.30	0.25	-	0.25	0.040	-	-
327S	CC		CEV max	Min	0.41	0.20	0.65	-	0.020	1.00	0.15	0.22	-	-	0.020	-	-
Pcm max	Max	0.45	0.35	0.80	0.025	0.030	1.20	0.30	0.28	0.040	-	0.035	-	-
327A	IC		CEV 0.92max	Min	0.41	0.20	0.65	-	0.020	1.00	0.15	0.22	-	-	-	-	5.60
Pcm 0.6max	Max	0.45	0.35	0.80	0.025	0.030	1.20	0.30	0.28	-	-	-	-	8.30
326C	IC		CEV 0.9max	Min	0.38	0.20	0.80	-	0.005	0.90	-	0.15	-	-	-	-	-
Pcm 0.58max	Max	0.43	0.30	1.00	0.015	0.010	1.10	0.20	0.25	-	-	-	-	-
42CrMo4 EN ISO 683-2	Std		CEV max	Min	0.38	0.10	0.60	0.000	0.000	0.90	-	0.15	-	0.00	-	-	-
Pcm max	Max	0.45	0.40	0.90	0.025	0.035	1.20	-	0.30	-	0.40	-	-	-

Variant

Cast

Weldability

C %

Si %

Mn %

P %

S %

Cr %

Ni %

Mo %

V %

Cu %

Al %

B %

DI %

42CrMo4 M (6082), MoC 410 M

5.6

CEV 0.82max

Min

0.38

0.15

0.60

0.020

0.90

0.15

Pcm 0.55max

Max

0.45

0.40

0.90

0.025

0.035

1.20

0.30

42CrMnMo4-4,SAE 4140 (6115)

6.8

CEV 0.87max

Min

0.40

0.15

0.75

0.000

0.90

0.15

Pcm 0.59max

Max

0.45

0.35

0.90

0.020

0.025

1.10

0.25

L7 ASTM A320 (6137)

6.39

CEV 0.86max

Min

0.38

0.15

0.75

0.90

0.15

Pcm 0.585max

Max

0.45

0.35

0.90

0.025

1.10

0.25

0.0030

SB 9288

4.9

CEV 0.8max

Min

0.40

0.15

0.75

0.020

0.90

0.15

0.015

Pcm 0.57max

Max

0.43

0.25

0.90

0.025

0.035

1.10

0.30

0.25

0.040

327S

CEV max

Min

0.41

0.20

0.65

0.020

1.00

0.15

0.22

0.020

Pcm max

Max

0.45

0.35

0.80

0.025

0.030

1.20

0.30

0.28

0.040

0.035

327A

CEV 0.92max

Min

0.41

0.20

0.65

0.020

1.00

0.15

0.22

5.60

Pcm 0.6max

Max

0.45

0.35

0.80

0.025

0.030

1.20

0.30

0.28

8.30

326C

CEV 0.9max

Min

0.38

0.20

0.80

0.005

0.90

0.15

Pcm 0.58max

Max

0.43

0.30

1.00

0.015

0.010

1.10

0.20

0.25

42CrMo4 EN ISO 683-2

Std

CEV max

Min

0.38

0.10

0.60

0.000

0.90

0.15

0.00

Pcm max

Max

0.45

0.40

0.90

0.025

0.035

1.20

0.30

0.40

Youngs module (GPa)	Poisson´s ratio (-)	Shear module (GPa)	Density (kg/m3)
210	0.3	80	7800
Average CTE 20-300°C (µm/m°K)	Specific heat capacity 50/100°C (J/kg°K)	Thermal conductivity Ambient temperature (W/m°K)	Electrical resistivityAmbient temperature (µΩm)
12	460 - 480	40 - 45	0.20 - 0.25

Youngs module (GPa)

Poisson´s ratio (-)

Shear module (GPa)

Density (kg/m3)

210

0.3

7800

Average CTE 20-300°C (µm/m°K)

Specific heat capacity 50/100°C (J/kg°K)

Thermal conductivity Ambient temperature (W/m°K)

Electrical resistivityAmbient temperature (µΩm)

460 - 480

40 - 45

0.20 - 0.25

Forging of 42CrMo4 Alloy Steel

Preheat 42CrMo4 engineering steel uniformly and slowly;
Increase the forging temperature up to 1150-1200°C.
Always keep the forging temperature above at least 850°C

Weldability

Engineering steel 42CrMo4 has only limited weldability. Preheating to 200-300°C is strongly recommended; the upper limit should not be exceeded because of risk for deterioration of the chrome layer.

Alloy steel 42CrMo4 can be friction welded. However, precautions are necessary so as to limit the formation of undesirable microstructures in the welded zone.

Application of 42CrMo4 Alloy Steels

EN 42CrMo4 alloy steel is widely used for engineering steel purpose, such as: making various kinds of machinery, automobile, mining spare part, the gearwheel of the engine, the driving gear of supercharger, the connecting rob, the pinchock under the high pressure, parts for power train applications, cold formed fastener components, shafts, gears, drill collars for the oil exploration, etc.

Product	steel round bar
Size	O.D：8-480mm Length：1-12m
Standard	AISI,ASTM,GB,DIN,BS,JIS
Grade	12Cr1MoV Cr5Mo 15CrMo 30CrMo 40CrMo 20SiMn 12Cr1MoVG 15CrMoG 42CrMo 20G
Inspection	X-ray inspection, manual ultrasopic inspection,surface inspection,hydraulic testing
Technique	Hot Rolled
Section Shape	Round, we also have other section shapes
Main Market	Southeast Asia, Middle East, Australia,USA,South America,Africa
Packing	Standard bundle package Beveled end or as per request
Surface Treatment	Black Painted, PE Coated, Galvanized or Customized all available
Advantages	High strength, good weldability, good machining performance, good corrosion resistance
Method of Payment	T/T L/C West Union

Steel Grade	GB: Q195, Q215, Q235A, Q235B, Q235C, Q235D, Q255A, 255B, Q275, Q295A, Q295B, Q345B,Q345C,Q345D,Q345E,Q390A,Q390B,Q390C,Q390D,Q390E,Q420,Q420B,Q420C,Q420DQ420E,Q460D, Q460E, Q500D, Q500E, Q550D, Q550E, Q620D,Q620E,Q690D,Q690E EN: S185, S235JR, S275JR, S355JR, S420NL, S460NL S500Q, S550Q, S620Q, S690Q ASTM: Grade B, Grade C, Grade D, A36, Grade 36, Grade 40, Grade 42, Grade 50, Grade 55, Grade 60, Grade 65, Grade 80 JIS: SS330, SPHC, SS400, SPFC, SPHD, SPHE
Standard	GB/T709-2006, ASTM A36, JIS G4051, DIN EN 10083, SAE 1045, ASTM A29M
Thickness	0.15mm-300mm
Width	500-2250mm
Length	1000mm-12000mm or according to customer's special request
Tolerance	Thickness: +/-0.02mm, Width:+/-2mm
MOQ	2 Tons
Application	1.Automobile, Bridges, Buildings. 2.Machinery, Pressure vessel industries. 3.Ship building, Engineering construction. 4.Mechanical manufacturing, Pavement slab, ect.

Size Ø mm	Yield stress Rp0.2,N/nn2, min.	Ultimate tensile Stress, Rm,N/nn2	Elongation A5,%, min.	Hardness HB	Toughness KV, Joule, min.
<40	750	1000-1200	11	295-355	35 at 20ºC
40-95	650	900-1100	12	265-325	35 at 20ºC
>95	550	800-950	13	235-295	35 at 20ºC

Product name		steel 42crmo4 4140 1.7225 42crmo4 Alloy Steel Round Bar
Size	O.D	8-480mm
	Length	1-12m
Standard		AISI,ASTM,GB,DIN,BS,JIS
Grade		12Cr1MoV Cr5Mo 15CrMo 30CrMo 40CrMo 20SiMn 12Cr1MoVG 15CrMoG 42CrMo 20G
Inspection		X-ray inspection, manual ultrasopic inspection,surface inspection,hydraulic testing
Technique		Hot Rolled
Model type		12/20/30CrNi3A/ 5CrMnMo/ 5CrNiMo / 45CrNiMoVA / 40CrNiMoA / 40CrNi2Mo/20Cr2Ni4A/ 31CrMoV9 / 30CrNiMo8/ 30Cr2Ni2Mo / 34CrNi3Mo /34CrNiMo6 / 9Cr2Mo / 9CrSi /CrWMn / 9Mn2V
Main Market		Southeast Asia, Middle East, Australia,USA,South America,Africa
Productivity		5000 Tons/month
Packing		Standard bundle package Beveled end or as per request
Surface Treatment		Black Painted, PE Coated, Galvanized or Customized all available
Date of Delivery		According to The Specifications And the Quantities Of Each Contract, Time Start To Begin When We confirm the Date of the Earnest or L/C
Method of Payment		T/T L/C West Union
Method Of Delivery		Terms According To the for International Trading
Remarks		1.Payment Terms T/T, L/C,West Union
		2.Trade Term:FOB/CFR/CIF
		3.Minimum Quantity of Order: 2 Tons
		4.Delivery Time:7-15 days after receipt of deposit

Chemical composition

Other properties (typical values)