SNC836 
 SNC836 
 Military Steel: SNC836 performance standards: JIS G4053-2003 ● Chemical Composition: C: 0.32 ~ 0.40 Si Si: 0.15 ~ 0.35 Manganese Mn: 0.35 ~ 0.65 S S: to allow the residual phosphorus content ≤ 0.030 P: ≤ 0.030 to allow the residual content Chromium Cr: 0.60 ~ 1.00 Nickel Ni: 3.00 ~ 3.50 Copper Cu: ≤ 0.030 to allow the residual content 
 ● Mechanical Properties: Tensile σb (MPa): ≥ 1130 (115) yield strength σs (MPa): ≥ 980 (100) Elongation δ5 (%): ≥ 10 Reduction of ψ (%): ≥ 50 impacts Power Akv (J): ≥ 47 impact toughness αkv (J/cm2): ≥ 59 (6) Hardness: ≤ 269HB sample size: Sample size of 25mm rough 
 ● Heat treatment and microstructure specifications: Heat treatment specifications: quenching 820 ℃, oil-cooling; tempering 500 ℃, water-cooled, oil-cooling. ● Delivery status: to heat treatment (normalizing, annealing, or tempering) or heat treatment delivery, delivery status should be indicated in the contract