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42CrMo High Speed Forged Steel Rolls EN Standard Hot Roller Forging Hollow Bar

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China JIANGSU MITTEL STEEL INDUSTRIAL LIMITED certification
China JIANGSU MITTEL STEEL INDUSTRIAL LIMITED certification
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42CrMo High Speed Forged Steel Rolls EN Standard Hot Roller Forging Hollow Bar

42CrMo High Speed Forged Steel Rolls EN Standard Hot Roller Forging Hollow Bar
42CrMo High Speed Forged Steel Rolls EN Standard Hot Roller Forging Hollow Bar 42CrMo High Speed Forged Steel Rolls EN Standard Hot Roller Forging Hollow Bar 42CrMo High Speed Forged Steel Rolls EN Standard Hot Roller Forging Hollow Bar 42CrMo High Speed Forged Steel Rolls EN Standard Hot Roller Forging Hollow Bar 42CrMo High Speed Forged Steel Rolls EN Standard Hot Roller Forging Hollow Bar

Large Image :  42CrMo High Speed Forged Steel Rolls EN Standard Hot Roller Forging Hollow Bar

Product Details:
Place of Origin: China
Brand Name: BAO STEEL MITTEL
Certification: SGS ISO MTC
Model Number: 42crmo
Payment & Shipping Terms:
Minimum Order Quantity: 100KGS
Price: 0.75 USD/KG
Packaging Details: Wooden Pallet BOX
Delivery Time: 7 Working Days
Payment Terms: L/C, T/T
Supply Ability: 80000KGS

42CrMo High Speed Forged Steel Rolls EN Standard Hot Roller Forging Hollow Bar

Description
Width: 600-2500mm Grade: 42crmo
Application: Boiler Plate,Container Plate,Ship Plate Technique: Hot Rolled
Type: Steel Plate Standard: ASTM,GB,AISI,JIS,DIN
Length: 1000-12000mm,as Your Requirement Thickness: 2.0-60mm
Shape: Flat Steel Plate
High Light:

low carbon steel plate

,

carbon steel sheet

42CrMo High Speed Forged Steel Rolls EN Standard Hot Roller Forging Hollow Bar

1. Supply Form of AISI 4140 Steel -ASTM A29/A29M Alloy Structural Steel


2. Supply Range of AISI 4140 Alloy Steel / 42CrMo4 steel

AISI 4140 Steel Round Bar: diameter 5mm – 400mm

ASTM 4140 Steel Plate: thickness 5 –500mm x width 200– 2300mm

SAE 4140 Steel Block: 210mm x 500-810mm

 


3. Chemical Composition of AISI 4140 Steel Material / 42CrMo4 steel

ASTM A29/A29M C Si Mn P S Cr Mo
4140/G41400 0.35~0.40 0.20~0.35 0.70~0.90 0.025 Max 0.025 Max 0.80~1.10 0.18~0.25
DIN 17220, EN 10083 C Si Mn P S Cr Mo
1.7225/42CrMo4 0.38~0.45 ≤0.40 0.60~0.90 0.035 Max 0.035 Max 0.90~1.20 0.15~0.30
GB/T 1229 C Si Mn P S Cr Mo
42CrMo 0.38~0.45 0.17~0.37 0.50~0.80 0.030 Max 0.030 Max 0.90~1.20 0.15~0.25
JIS G4105 C Si Mn P S Cr Mo
SCM440 0.38~0.43 0.15~0.35 0.60~0.85 0.030 Max 0.030 Max 0.90~1.20 0.15~0.30

4. AISI 4140 alloy Steel Equivalent and Related Speciation / 42CrMo4 steel

USA German Japan China ISO
ASTM 29/A29M DIN 17350 JIS G4404 GB/T 1229 ISO 683/18
4140 1.7225/42CrMo4 SCM440 42CrMo 42CrMo4

5. ASTM AISI 4140 Steel Material Mechanical Properties

Hardness, Rockwell C: 22 HRC, Density: 7.85kg/m3

Tensile strength: 655 MPa .

Melting point: 1416°C

Thermal expansion: 12.2 µm/m°C (20-100 ºC)

Elastic modulus: 190-210 GPa (at 25 ºC ).


6. Forging of AISI 4140 Oil and Gas industry Steel material metal

Forging of 4140 steel should be carried out between 2200 and 1650 º F (1200 and 900 º C). The lower the finishing temperature from forging, the finer will be the grain size. This alloy steel should ideally not be forged below 1650 º F (900 º C) and should be slow cooled after forging in Oil or water.


7. Heat Treatment of SAE/AISI 4140 Alloy Steel / 42CrMo4 steel

  • 4140 Steel Annealing

Slowly heat to 800~8500 ºC, keep enough time, ensure heat thoroughly. then cooling in furnace to 480 ºC, then cool in air. After annealing, the hardness 92 HBS Max.

  • AISI 4140 Steel Hardening & Quenching

4140 Steel is usually used at 18-22 HRc, If needs, AISI 4140 alloy steel can be hardened or Quenching by cold work. Quenching medium: oil

  • Tempering Of AISI 4140 Alloy Steel

/ ℃ tempering temperature: 205 ~ 649°C.

After tempering hardness HRC: 18-25 HRc.


8. Application of AISI 4140 Alloy Steel / 42CrMo4 steel

AISI 4140 alloy steel used for Structural products. As below:

Oil and gas sector, like collets, connection rods, conveyor pins, stem assemblies, gears, Bearings


9. Quality Assured of AISI 4140 Alloy Steel / 42CrMo4 steel

Quality assured by Our ISO 9001:2008 quality management system. Our all AISI 4140 steel all had by SEP 1921-84 ultrasonic inspection (UT Test). Quality Grade: E/e, D/d, C/c.

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Contact Details
JIANGSU MITTEL STEEL INDUSTRIAL LIMITED

Contact Person: Mr. Gao Ben

Tel: +86-18068357371

Fax: 86-0510-88680060

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