Meaning of steel grade numbers
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What do the numbers in 3Cr13 mean?
Carbon C: 0.26–0.35 Chromium Cr: 12.00–14.00 The number 3 indicates the carbon content, while 13 represents the chromium content
3Cr13 stainless steel belongs to the martensitic stainless steel category. Chemical composition: Carbon C: 0.26–0.35; Silicon Si: ≤1.00; Manganese Mn: ≤1.00; Sulfur S: ≤0.030; Phosphorus P: ≤0.035; Chromium Cr: 12.00–14.00; Nickel Ni: up to 0.60% is allowed. Mechanical properties: Tensile strength σb (MPa): ≥735 after quenching and tempering; Conditional yield strength σ0.2 (MPa): ≥540 after quenching and tempering; Elongation δ5 (%): ≥12 after quenching and tempering; Reduction of area ψ (%): ≥40 after quenching and tempering; Impact energy Akv (J): ≥24 after quenching and tempering. Hardness: ≤235HB after annealing; 48–53HRC after quenching and tempering
3Cr13 stainless steel belongs to the martensitic stainless steel category. Chemical composition: Carbon C: 0.26~0.35; Silicon Si: ≤1.00; Manganese Mn: ≤1.00; Sulfur S: ≤0.030; Phosphorus P: ≤0.035; Chromium Cr: 12.00~14.00; Nickel Ni: up to 0.60% is allowed
3Cr13 stainless steel belongs to the martensitic stainless steel category. Chemical composition: Carbon C: 0.26~0.35; Silicon Si: ≤1.00; Manganese Mn: ≤1.00; Sulfur S: ≤0.030; Phosphorus P: ≤0.035; Chromium Cr: 12.00~14.00; Nickel Ni: up to 0.60% is allowed