English
English
Strength: 8.8 Material: carbon steel, alloy steel
Material: medium carbon steel
Material description: C 0.32-0.39, Mn0.50-0.80,Si0.17-0.37,Cr≤0.25,Cu≤0.25,Ni≤0.30,P≤0.035,S≤0.035, It is similar to American grade 1035, Japanese grade S35C, German, English, and French grade C35, and ISO standard C35E4
Surface treatment: Blackening (quenching)
Surface treatment content: Blackening is a common method of metal heat treatment, which is to create a layer of oxide film on the metal surface to isolate air and achieve the purpose of rust prevention. When the appearance requirements are not high, blackening treatment can be used. The surface of steel parts is blackened, also known as bluing treatment
