2Cr13(20Cr13 New Grade)

2Cr13 steel is a more commonly used stainless steel, which has high thermal strength, oxidation resistance and good shock absorption. It has good corrosion resistance in weakly corrosive media and has sufficient corrosion resistance to freshwater, seawater, steam, and air. Higher performance can be obtained after heat treatment.

20Cr13 Worldwide equivalents

Grade2Cr13/20Cr13420(S42010)X20Cr13 (1.4021)SUS 420J1Z20C13420S37X20Cr13

2Cr13 Steel Material Chemical Composition

CSi (≤)Mn (≤)P (≤)S (≤)CrNi (≤)
0.16 – 0.25110.040.0312.00 – 14.00(0.6)

Mechanical Properties

Tensile strength: 640 N/mm2

Conditional yield strength (Non-proportional extension strength): ≥440 N/mm2

Elongation: ≥20%

Rate of reduction in area: ≥50%

Impact energy: ≥63 Aku2 (J)

Material hardness:

HBW: ≤ 223 (After annealing);

HBW: ≥ 192 (After quenching and tempering)

Physical Properties

Density (g/cm3): 7.75

Melting point: 1470-1510℃

Specific heat capacity (J/Kg·K): 460 at 0-100℃

Electrical Resistivity (μΩ·m): 0.55 at 20℃

Longitudinal modulus of elasticity (kN/mm2): 200 at 20℃

Thermal conductivity: 

Thermal conductivity (W/m·K)22.226.4

Coefficients of linear thermal expansion:

Coefficients of linear thermal expansion (10-6/K)10.312.2

Heat treatment

1) Annealing, slow cooling at 800 ~ 900 ℃ or rapid cooling at about 750 ℃;

2) Quenching, 920 ~ 980 ℃ oil cooling;

3) Tempering, rapid cooling at 600 ~ 750 ℃.


2Cr13 stainless steel has high hardness and good corrosion resistance in quenched state. Many of them are used as cutting tools. They are “cutting tool grade” martensitic steel. They are also used as surgical cutting tools. They are similar to the earliest stainless steel such as Brinell high chromium steel. In addition, they are also used as steam turbine blades.

It can also be used to manufacture mechanical parts working below 450 ° C and chemical and food industrial containers used at room temperature.. For example, transmission parts, fixed pins, tie rods, turbine blades, valve seats, valve plates, valve stems, pump parts, molds, etc. Among them, transmission parts, fixed pins, tie rods and other parts are generally used after quenching and tempering.

Delivery States

Product typeProductsDimensionProcessesDelivery States
Plates / SheetsPlates / Sheets0.08-200mm(T)*W*LForging, hot rolling and cold rollingAnnealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Steel BarRound Bar, Flat Bar, Square BarΦ8-1200mm*LForging, hot rolling and cold rolling, CastBlack, Rough Turning, Shot Blasting,
Coil / StripSteel Coil /Steel Strip0.03-16.0x1200mmCold-Rolled & Hot-RolledAnnealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Pipes / TubesSeamless Pipes/Tubes, Welded Pipes/TubesOD:6-219mm x WT:0.5-20.0mmHot extrusion, Cold Drawn, WeldedAnnealed, Solution and Aging, Q+T, ACID-WASHED