42CrMo4 Alloy Structural Steel

 

The standard for 42CrMo4 steel is EN 10083-3. It is a high-strength alloy structural steel with good thermal workability and wear resistance.

 

The specific chemical composition is as follows:

Carbon (C): 0.38-0.45%

Silicon (Si): maximum 0.40%

Manganese (Mn): 0.60-0.90%

Phosphorus (P): maximum 0.035%

Sulfur (S): 0.020-0.040%

Chromium (Cr): 0.90-1.20%

Molybdenum (Mo): 0.15-0.30%

 

The tensile strength of this steel is 900-1100MPa, the yield strength is 650-900MPa, and the elongation at fracture is ≥12%.

 

42CrMo4 steel is mainly used to manufacture high-load components such as crankshafts, gears, and axles. In addition, it can also be used to manufacture components such as cylinders, valves, and turbines.

 

This steel can be annealed, quenched, or quenched and tempered.

 

Advantages:

1. High strength and hardness;

2. Good wear resistance and thermal workability.

 

Disadvantages:

1. Requires high-performance cutting for optimal performance;

2. Low toughness at low temperatures.

 

The most common forms of this steel include round bars, square bars, flat bars, and steel plates.

 

Comparison of grades in different countries:

Chinese grade: 42CrMo

American grade: SAE 4140, ASTM A29/A29M-04

German grade: 1.7225

Japanese grade: SCM440

 

In summary, 42CrMo4 steel is a high-strength alloy structural steel with good thermal workability and wear resistance, mainly used to manufacture high-load components. However, its disadvantages of requiring high-performance cutting and low toughness at low temperatures need to be carefully considered. The most common forms of this steel include round bars, square bars, flat bars, and steel plates. Comparison of grades in different countries includes Chinese grade 42CrMo, American grade SAE 4140 and ASTM A29/A29M-04, German grade 1.7225, and Japanese grade SCM440.

 

 

Article	Alloy constructional steel
Standard	AISI 、ASTM 、EN 、BS 、GB 、DIN 、JIS
Material	38Cr2、1.7003、46Cr2、1.7006、34Cr4、1.7033、34CrS4 、1.7037 、37Cr4 、1.7034 、37CrS4 、1.7038 、41Cr4 1.7035 ，41CrS4 、1.7039、25CrMo4 、1.7218、25CrMoS4、1.7213、34CrMo4、1.722、34CrMoS4 、1.7226、42CrMo4 、1.7225、42CrMoS4、1.7227、50CrMo4、1.7228、34CrNiMo6、1.6582、30CrNiMo8、1.658、 35NiCr6、1.5815、36NiCrMo3、1.6773、39NiCrMo3、1.651、30NiCrMo16-6、1.6747、51CrV4、1.8159、20MnB5 、1.553、30MnB5、1.5531、38MnB5、1.5532、27MnCrB5-2、1.7182、33MnCrB5-2、33MnCrB5-2、1.7185、39MnCrB5-2、1.7189 、 SCM440、SCr440、42C r M o 、35C r M o 、20C r N i M o 、SNCM220、SCM435、SCM430、8620、SNCM220、SCM415、8650、5150、4150、SCR415、SCR240、 SCR430、SCR435、40 Cr、45 Cr, 40C r N i M o、30C r M n S i A、35C r M n S i A、27S i M n, etc
Output to	Singapore, Indonesia, South Korea, Thailand, Vietnam, Saudi Arabia, Brazil, Spain, Canada, the United States, and Egypt, India, Kuwait, Dubai, Kuwait, Peru, Mexico, and Russia, Malaysia, etc.
Pack	Bundle packaging, export standard packaging or according to customer requirements
Delivery time	7-15 days or according to the order quantity or negotiation
Price clause	Price terms CIF, FOB, CFR.
Pay	Letter of credit, wire transfer, etc
Minimum order	One ton

 

 

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