Gear Steel And Bearing Steel

20CrMoTi Gear Steel Bar

20CrMoTi Gear Steel Bar
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Product Details

20CrMnTi gear steel is a commonly in accordance with the standards of the former Soviet union in China according to GB/T 3077, GB/T 5216-2014 and GB/T 33160-2016 (gears for wind power generation). 20CrMoTi steel is a type of low-carbon alloy steel which widely used in gear with good strength and toughness and higher hardenability, in order to meet the requirements of wear resistance, corrosion resistance and high fatigue strength of gear surface, generally need surface treatment such as nitriding and pre-oxidation. The purpose of oxidation treatment after nitriding is to form a dense black composite hardening layer dominated by iron tetroxide in order to improve the wear resistance, corrosion resistance and self-lubrication of steel. The table below showed below its chemical composition and mechanical property.


Size: 4-40mm

Finish: Hot rolled

Specification: GB/T 3077, GB/T 5216, GB/T 33160

applications: Gears for transmission, transmission box, starter and drive axle

 

20CrMnTi Chemical composition (GB/T 3077)

C

Si

Mn

Cr

Ti

0.17~0.23

0.17~0.37

0.80~1.10

1.00~1.30

0.04~0.10


20CrMnTi Mechanical property (GB/T 3077)

20CrMnTi Sample blank size(mm)

15

Heat treatment(℃)

First quenching (oil cooling)

880

Second quenching (oil cooling)

870

Tempering (water/ air cooling)

200

Physical property

Tensile strength MPa

≥1080

Yield strength MPa

≥850

Elongation after break %

≥10

Reduction of area %

≥45

Impact absorption work J

≥55

Delivery hardness, HBS

≤217


We supply and manufacture high quality 20CrMnTi Gear steel round bar in accordance with GB 3077standards, specified delivery conditions and final customer specifications for industrial and commercial applications. Special sizes of steel pipes and delivery issues can be further negotiated and we provide a wide range of solutions for purchasing departments to select alternative grades without specifying product specifications.

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