1.4028 Corresponds to International Models

IOENET 17/08/2021 445

1.4028

Digital number: 1.4028

Plate number: X30CR13

● Features and scope of application:

Martensite stainless steel. Used to fabricate high hardness and high wear resistant components such as hot oil pump shaft, hydraulic valve, seat, cylinder block, and spring, etc. It is often used to manufacture measuring instruments and medical workers

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● Chemical composition:

Carbon C: 0.26 ~ 0.35

Silicon Si: ≤1.00

Manganese Mn: ≤1.50

Sulfur S: ≤0.030

Phosphorus P: ≤0.040

Chromium CR: 12.00 ~ 14.00

● Mechanical properties:

Tensile strength σb (MPa): quenching tempering, ≥800 ~ 1000

Condition Yield Strength σ0.2 (MPA): Quenching tempering, ≥600

Adding length Δ5 (%): quenching tempering, ≥10  

Stainless steel corrosion-resistant alloy - local corrosion - crystal corrosion: Material grain boundary is a grain disorder of crystallographic orientation, stainless steel resistance alloy - local corrosion - gap corrosion: means in a metal member slot Macroscopic moisture pits of spot or ku uume, stainless steel resistance alloy - corrosion - uniform corrosion: refers to all phenomena of corrosion of metal surfaces that contact the corrosion medium. Stainless steel is widely used in various fields, which can be used as chemical industries, refining industries, artificial fiber, food, and daily necessities industries, acid, alkali, high-pressure pressure vessel devices and storage and operation of tanks. Materials; can also be used as a power industry, steam turbine manufacturing industry, ship industry, high temperature resistance and low temperature of the aviation industry; in the aerospace industry, nuclear industry is manufacturing a spacecraft, and nuclear power units

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