GB/T 35CrMo Alloy Steel plate properties

GB/T 35CrMo steel is a grade that belongs to the category of alloy steel. This steel grade is known for its high tensile strength, excellent impact resistance, and good fatigue strength. 35CrMo alloy structural steel mainly used to manufacture important parts in various machines that withstand impact, bending torsion, and high loads.

Product	Size/mm	Grade
Wire Alloy Steel	Ф5.5-30	35CrMo
Hot rolled round bar	Ф20-100	35CrMo
Hot rolled round bar	Ф100-150	35CrMo
Alloy Steel Hot Rolled Plate	Ф5-100	35CrMo
Hot rolled round bar	Ф200-400	35CrMo
Alloy steel cold rolled steel plate	Ф0.1-180	35CrMo

The chemical composition of GB/T 35CrMo alloy structural steel plate is as follows:

Carbon (C) 0.32-0.40%

Silicon (Si) 0.17-0.37%

Manganese (Mn) 0.40-0.70%

Phosphorous (P) ≤ 0.030%

Sulfur (S) ≤ 0.030%

Chromium (Cr) 0.80-1.10%

Molybdenum (Mo) 0.15-0.25%

The mechanical properties of GB/T 35CrMo alloy steel plate are as follows:

Tensile Strength (MPa) 885

Yield Strength (MPa) 735

Elongation (%) 12

Reduction in Area (%) 45

Impact Toughness (J) ≥ 55

From the above table, we can see that GB/T 35CrMo has high tensile and yield strength, good elongation and reduction in area, and excellent impact toughness.

GB/T 35CrMo alloy structural steel plate can be heat treated in a variety of ways to improve its properties. The most common heat treatment method for this steel grade is quenching and tempering. This involves heating the steel plate to a high temperature, typically between 820°C and 870°C, and then rapidly cooling it in water or oil. This process strengthens the steel by transforming the microstructure from austenite to martensite.

GB/T 35CrMo alloy steel plate has a wide range of applications in different industries. Some of these include:

1. Manufacturing of heavy equipment: GB/T 35CrMo is often used in the manufacturing of heavy equipment, such as cranes, excavators, and bulldozers, due to its high tensile strength and excellent impact resistance.

2. Aerospace industry: GB/T 35CrMo is also used in the aerospace industry, particularly in the production of rocket motor cases, due to its excellent mechanical properties.

3. Oil and gas industry: The oil and gas industry also uses GB/T 35CrMo alloy steel plate for the manufacturing of drilling equipment, such as drill collars and drill pipes, due to its high strength and corrosion resistance.

4. Automotive industry: GB/T 35CrMo is used in the automotive industry for the manufacturing of gears, shafts, and other components that require high strength and wear resistance.

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