1.7225/42CrMo4 42CrMo Forged Steel Rod EN Standard SAE4140 Hot Rolled Alloy Steel Round 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

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

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.

FAQ


Q1: Are you a manufacturer or merely a trader?
A1: We are not only a stockist of Hot rolled products but also a manufacturer of forged products with our own Forging Mill

Q2: What do you do to control the quality?
A2: Before loading, our products will all be inspected by ultrasonic inspection. Quality Grade conforms to SEP 1921-84 E/e, D/d, C/c as per the customer's request.

Q3:: What are your hot-selling products?
A3: S50C, 1.2311, D2/1.2379, H13/1.2344, CR12MOV, DC53, CR8 4140 4130 4340 8620 , abundant stock for both plates and rounds. Competitive prices and short lead-time.

Q4: Can we visit your company and factory?
A4: Yes, warmly welcome! We will book the hotel and assign our driver to pick you up at the airport when you visit.