20CrMnTi hot rolled gear steel bar

20CrMnTi 1.Dia: 8-700mm 2.Surface: Black 3.EAF/LD+LF+VD

20CrMnTi

Application:

Property carburization is a good steel, high hardenability, have Carburized quenched hard and wear-resistant surface of the heart and tenacity, high impact toughness at low temperature, medium-welding, cutting and after normalizing Good. Section used in the manufacture of 30mm max to bear the high-speed, medium or heavy loads, shock and friction of the important parts such as gears, gear, gear shaft, and so on the cross head.

Quality Standard:

GB / T 3077-1988

Chemical Composition(%):

Carbon 0.17 ~ 0.23

Silicon 0.17 ~ 0.37

Manganese 0.80 ~ 1.10

Chromium 1.00 ~ 1.30

Phosphorous 0.04 max

Sulphur 0.04 max

Titanium 0.04 ~ 0.10

Process: EAF/LD+LF+VD+CC+Hot Rolled+UT+CUT

SIZE RANGE: 8mm -250mm

SURFACE FINISHES: Black

Ultrasonic test: According to SEP 1921-84 3C/c

Certificate of Quality: issued in English, in addition the normal terms, production process, the mechanical property (yield strength, tensile strength, elongation and hardness), reduction ratio, UT test result, Grain size, heat treatment methods and the sample of is shown on the Certificate of Quality.

Marking: Heat No. will be cold stamped and Steel grade, diameter (mm), length (mm), and the manufacturer LOGO and weight (kg) is painted

20CrMnTi hot rolled gear steel bar