15NiCr13
● Features and application: 15NiCr13 (1.5752) alloy structural steel is a wider use of advanced carburizing steel, 15NiCr13 with 15Cr, 20Cr steel compared to its strength, ductility, hardenability are high. 15NiCr13 mainly used to produce heavy-duty conditions requiring high strength, high hardness and high toughness requirements of central spindle and high toughness or shock loading, surface wear, heat deformation of the shaft, rod, and the impact of high-speed and work load a variety of transmission gears, adjusting screw, camshaft.● Chemical Composition:
Carbon C: 0.10 ~ 0.17
Si Si: 0.17 ~ 0.37
Manganese Mn: 0.30 ~ 0.60
Sulfur S: to allow the residual content of ≤ 0.035
Phosphorus P: allow the residual content ≤ 0.035
Chromium Cr: 0.60 ~ 0.90
Ni-Ni: 2.75 ~ 3.15
Copper Cu: to allow the residual content ≤ 0.030
● Mechanical Properties:
Tensile strength σb (MPa): ≥ 930 (95)
Yield strength σs (MPa): ≥ 685 (70)
Elongation δ5 (%): ≥ 11
Reduction of area ψ (%): ≥ 50
Impact energy Akv (J): ≥ 71
Impact toughness αkv (J/cm2): ≥ 88 (9)
Hardness: ≤ 217HB
Sample size: Sample size is 15mm rough
● Heat treatment and microstructure specifications:
Standard heat treatment: quenching: the first 860 ℃, the second 780 ℃, oil cooling; tempering 200 ℃, water, air-cooled.
