Description
Specifications:
1.Whole heat treatment rod
2.Screw thread heat treatment rod.
3.Proper Hardness
4.Qualified Material
Description of the Products:
Raw material:42crmo Surface hardness:51±3
Tensile strength≥1250/mm² Yield point(min)950N/mm²
Elongation:10~14% Grain sizes:7.0~8.0
Steel production technology and manufacturing process:
Forging→Turnery→Heat treatment →Ultrasonic flaw
Detection→Hardness test
Complaint
