Scm440 Scm420 Scm435 4140 Alloy Round Steel Bar

China Scm440 Scm420 Scm435 4140 Alloy Round Steel Bar, Find details about China Steel Bar, Alloy Steel Bar from Scm440 Scm420 Scm435 4140 Alloy Round Steel Bar

Basic Info.

Model NO.

steel round bar

Special Use

Shaft

Application

Structural Steel Bar

Supply Condition

Hot Rolled or Forged or Cold Drawn

Length

as Client′s Requriement

Heat Treatment

Qt or Annealing

Main Grade

SAE4140 4150 4130 42CrMo 42CrMo4 Scm440 Scm435

Ready Stock

Yes

Trademark

DaJin

Transport Package

Seaworthy Packaging

Specification

5-800mm

Origin

China

Model NO.

steel round bar

Special Use

Shaft

Application

Structural Steel Bar

Supply Condition

Hot Rolled or Forged or Cold Drawn

Length

as Client′s Requriement

Heat Treatment

Qt or Annealing

Main Grade

SAE4140 4150 4130 42CrMo 42CrMo4 Scm440 Scm435

Ready Stock

Yes

Trademark

DaJin

Transport Package

Seaworthy Packaging

Specification

5-800mm

Origin

China

Product Desciption

Alloy Steel Round Bar 4140/Aisi 4140 Round Bar,1.7225 Steel,4140 Round Steel Bar
1.4140 42CrMo SCM440 steel rod Chemical Composition (%):

Grade	C	Si	Mn	P	S	Cr	Mo
42CrMo4	0.38-0.45	0.17-0.37	0.40-0.70	≤0.035	≤0.035	0.90-1.20	0.15-0.25
1.7225	0.38-0.45	≤0.40	0.60-0.90	≤0.025	≤0.035	0.90-1.20	0.15-0.30
4140	0.38-0.43	0.15-0.35	0.75-1.00	≤0.035	≤0.040	0.80-1.10	0.15-0.25

2.4140 alloy steel bar avaliable sizes

Commodity delivery condition	Dimensions
Hot rolled steel round bars	10mm to 350mm
Forged steel round bars	200mm to 800mm
Forged steel square block	200mm200mm to 500mm500mm
Forged steel flat block	(150mm to 500mm)*(200mm to 500mm)
Hot rolled and peeled or turned steel bright bars	20mm to 800mm

4.42CrMo4 steel bar delivery condition:
Hot rolled or forged, Peeled or black surface, annealed or QT.
4.4140 SCM440 steel bar applications:
Statically and dynamically stressed components for vehicles, engines and machines. For parts of larger cross-sections, crankshafts, gears.
5.1.7225 42CrMo4 steel round bar heat treatment:
Soft annealing: heat to 680-720°C, cool slowly.
Hardness after annealing: Max. 241 HB
Hardening: 820 - 850 °C
Normalizing temperature: 840-880°C
Tempering: 540-680°C

6.SCM400 4140 steel bar inspection:

Spectral Tested, Microstructure Tested,Hardness Test,Macrostructure Test,Ultrasonic according to the test standards:SEP1921-84,GR.3 CLASS C/C

7.Steel bar packing situation:

standard seaworthy packing or as customer required
8. 4140 steel bar delivery time:
always ready stock shipped within 7days,30 days for new material
9. 42CrMo4 alloy steel bar production process:
EAF+LF+VD ( necessary) +UT+ Peeled(optional) +Turned (optional) + Heat Treatment (optional)
Scm440 Scm420 Scm435 4140 Alloy Round Steel Bar