SCM440 characteristics and application
SCM440 is the production of high strength fastener commonly used type of steel, the product has stable composition, harmful element is low, the steel purity high
, decarburized layer small, less surface defects etc, and easy for spheroidizing annealing, cold heading cracking rate is low, heat treatment quality is stable,
Hardness even, widely used in engine, mould, etc.
1. Quenching sex good, can be depth quenching, not on the market prevent saw shape lock surface quenching
2. Less to temper brittleness tendency
3. High temperature processability, after processing is beautiful
4. Welding sex good
5. Shock absorption performance is good, the hammer hit up with the rebound feeling, unable to violent destruction advantages:
(1). Good workability
(2). Shock absorption performance is good
(3). Welding easily |