35crmo steel Heat treatment

35CrMo alloy steel tube with hollow section, a large number of pipelines used for conveying fluids, such as oil, natural gas, gas, water and some solid materials pipelines. The 35CrMo alloy steel working temperature is up to 500 ° C, the low temperature can be -100 ° C, and has high static strength and high fatigue strength, good hardenability, no tendency to overheat, small quenching deformation, and moderate machinability.

35CrMo alloy steel Chemical Composition [%]

Grade	C	Si	Mn	Cr	Mo	V
35CrMo	0.32- 0.40	0.17- 0.37	0.40- 0.70	0.80- 1.10	0.15- 0.25	-

35CrMo Alloy Steel Mechanical Properties

Yield strength: ≥ 835 MPa
Tensile strength: ≥ 980 MPa
Elongation: ≥12%
Rate of reduction in area: ≥45%
Impact absorbing energy: ≥ 63 J
Brinell Hardness: ≤ 229 (Annealed or high temperature tempered steel rod)
Sample size: 25mm

Heat treatment specification:

First quenching heating temperature: 850 °C (Coolant – oil)
Tempering heating temperature: 600 °C (Coolant – water, oil)