Hit：92026-01-24 15:47:29
Chemical composition and mechanical properties of S45C seamless steel pipe
Mechanical properties (based on quenching and tempering treatment state):
Tensile strength: 570-700 MPa
Yield strength: approximately 355 MPa
Elongation rate: ≥ 17%
Hardness: 220-280 HBW
Density: 7.85 g/cm ³
Elastic modulus: approximately 210 GPa
S45C seamless steel pipes are usually subjected to quenching and tempering treatment to enhance their comprehensive mechanical properties, and are suitable for manufacturing mechanical parts such as shafts and gears that can withstand moderate loads. Its carbon content is close to 0.45%, achieving a good balance between strength and toughness, but its hardenability is poor, and its performance needs to be optimized through heat treatment.
Chemical composition (mass fraction%):
Carbon (C): 0.42~0.48
Silicon (Si): 0.15~0.35
Manganese (Mn): 0.60~0.90
Phosphorus (P): ≤ 0.030
Sulfur (S): ≤ 0.035
Copper (Cu): ≤ 0.30
Nickel (Ni): ≤ 0.20
Chromium (Cr): ≤ 0.20
S45C is a medium carbon high-quality carbon structural steel, and the above is its chemical composition and mechanical properties.
