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Stud Bar DIN975 976 Metric Size L7 L7M L43 "End to End" M16-2.0~M100-6.0
High strength products processed by domestic materials 4140 alloy steel, net belt furnace or medium frequency furnace heat treatment, high temperature resistance, products are widely used in oil, power plants, offshore exploration, tower and various high temperature and low temperature resistance environment,
The product of 4140 alloy steel shall meet the following chemical composition standards:
C% 0.38-0.48
Si% 0.15-0.35
Mn% 0.75-1.00
P% ≤0.035
S% ≤0.040
Cr% 0.80-1.10
Mo% 0.15-0.25