GB/T3077-1999 Alloy Structural Steels

Standard classification: material standard standard system: national standard (GB) shape classification: alloy steel detailed description: specifies the chemical composition and mechanical properties of 40MnB, 40Cr, 15CrMo, 30CrMo, 35CrMo, 42CrMo, 35 Cr2MoVA, 40CrNiMoA and other materials. High-grade high-quality steel in the grade after the "A"; super high-quality steel in the grade after the "E". With high strength, high hardness, high toughness. The hardenability is good, the working temperature can reach 500 ℃, and it is generally used after quenching and tempering treatment. Used to manufacture high strength and high toughness

Standard Classification:

Material Standards

standard system:

National Standard(GB)

Shape classification:

Alloy Steel

Detailed Description:

has stipulated40MnB,40Cr15CrMo, 30CrMo, 35CrMo, 42CrMo, 35CrMoV, 25 Cr2MoVA, 40CrNiMoA and other materials chemical composition and mechanical properties.

High-quality steel is added after the grade“A”; Premium quality steel is added after the grade“E”。

With high strength, high hardness, high toughness. The hardenability is good, the working temperature can reach 500 ℃, and it is generally used after quenching and tempering treatment. Used in the manufacture of high strength, high toughness, high temperature, high pressure chemical machinery, petroleum machinery and other fasteners.

 

 

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