SCM435 is steel material.
SCM435 chemical composition:
Carbon C: 0.33-0.38
Silicon Si: 0.15-0.35
Manganese Mn: 0.60-0.90
Sulphur S: Allowable residual content ≤ 0.030
Phosphorus P: Allowable residual content ≤ 0.030
Chromium Cr: 0.90 ~ 1.20
Nickel Ni: allow residual content of ≤ 0.25
Copper Cu: allow residual content of ≤ 0.30
Molybdenum Mo: 0.15 ~ 0.30
When the alloy is solidified, due to solute solubility differences in the solid phase and in the liquid phase, and the emergence of the phenomenon of selective crystallization (also known as desolvation or liquid precipitation). That is, along with the crystallization of the solidification of the front of the solute precipitation (K & lt; 1 when), so that the liquid concentration of the same solute gradually increased. In the equilibrium crystallization, the uniform diffusion of solutes in the solid and liquid phases are fully carried out, and thus does not produce segregation.
Extended information:
scm435 has high static strength, impact toughness and high fatigue limit, hardenability is higher than 40Cr, high temperature creep Strength and enduring strength, long-term working temperature of up to 500 ℃; cold deformation of the plasticity of medium, poor weldability.
Used as an important structural components working under high loads, such as vehicles and engine transmission parts; turbine generator rotor, spindle, heavy load transmission shaft, large section parts.
The process of producing crystals from liquid steel, also known as liquid crystallization or primary crystallization. With the export of heat, the crystals from scratch (nucleation), from small to large (crystal growth), until the liquid is all turned into a solid (crystal), to complete the crystallization process.
The crystallization process of the liquid steel determines the crystalline organization of the ingot or casting and physical and chemical inhomogeneity, thus affecting the mechanical, physical and chemical properties of steel. Control of the crystallization process of steel is one of the important means to improve the quality and performance of steel.
Baidu Encyclopedia - SCM435