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Hot M1A2 Martensitic stainless steel Blade Utility Multi Pocket Knife Mini Key Chain Tactical EDC Survival Camping Outdoor Tool

R143.96 R169.39

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  • Description

    Stainless steel grade: 3Cr13
    Standard: GB/T 1220-2007
    Features and scope of application:
    The commonly used grades of martensitic stainless steels are 1Cr13, 3Cr13, etc., because of the high carbon content, they have high strength, hardness and wear resistance, but the corrosion resistance is slightly poor, which is used for high mechanical properties and corrosion resistance. General parts are required, such as springs, steam turbine blades, cutting tools, nozzles, valve seats, valves/hydraulic valves, etc. This type of steel is used after quenching and tempering.
    chemical composition:
    Carbon C: 0.26~0.35
    3Cr13 stainless steel
    3Cr13 stainless steel
    Silicon Si: ≤1.00
    Manganese Mn: ≤1.00
    Sulfur S :≤0.030
    Phosphorus P :≤0.035
    Chromium Cr: 12.00~14.00
    Nickel Ni: Allowable to contain ≤0.60
    Mechanical properties:
    Tensile strength σb (MPa): quenching and tempering, ≥ 735
    Conditional yield strength σ0.2 (MPa): quenching and tempering, ≥540
    Elongation δ5 (%): quenching and tempering, ≥12
    Section shrinkage ψ (%): quenching and tempering, ≥ 40
    Impact work Akv (J): quenching and tempering, ≥24
    Hardness: Annealed, ≤235HB; quenched and tempered, ≥217HB

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