420 Stainless Steel Rod

420 Stainless Steel Rod

420 stainless steel rod rod is a martensitic stainless steel, with certain wear resistance and corrosion resistance, high hardness and other characteristics, applicable to various types of precision machinery, bearings, electrical, equipment, instrumentation, instrumentation, transportation...
Product description

420 stainless steel rod rod is a martensitic stainless steel, with certain wear resistance and corrosion resistance, high hardness and other characteristics, applicable to various types of precision machinery, bearings, electrical, equipment, instrumentation, instrumentation, transportation tools, household appliances. It is used for the manufacture of parts that are resistant to atmospheric, water vapor and oxidizing acid.


Characteristics and Applications

420 stainless steel rod, 420 stainless steel rod is 420 "cutting-tool grade" martensitic steel, similar to the first stainless steel of Brinell high chromium. 420 has a certain wear resistance and corrosion resistance, high hardness, the price of stainless steel ball in a lower class, applicable to the general requirements of stainless steel working environment. 420 stainless steel rod suitable for all kinds of precision machinery, bearings, electrical, equipment, instrumentation, instrumentation, transportation tools, household appliances. It is used for the manufacture of parts that are resistant to atmospheric, water vapor and oxidizing acid.


Chemical Composition

C: 0.16~0.25

Mn ≤1.00

Si ≤1.00

Cr: 12.0~14.0

Ni ≤0.75

P ≤0.04

S ≤0.03


Mechanical Properties

Tensile strength σb (MPa): Quenching and Tempering ≥635

Conditions yield strength σ0.2 (MPa): Quenching and Tempering ≥440

Elongation rate δ5 (%): quenching and Tempering ≥20

Shrinkage Rate of section ψ (%): quenching and Tempering ≥50

Impact Power Akv (J): Quenching and Tempering ≥63

Hardness: annealing ≤223HB;

Quenching and tempering ≥192HB


Analysis of Performance Characteristics of Stainless Steel Plate

Corrosion Resistance

The stainless steel plate has a similar ability to resist general corrosion as the unstable nickel-chromium alloy 304. Long-term heating in the temperature range of the degree of chromium carbide may affect the alloy 321 and 347 in harsh corrosive media. Mainly used for high temperature applications, high temperature applications require strong resistance to the material to prevent corrosion at lower temperatures.


High Temperature Oxidation Resistance

Stainless steel plates have high temperature oxidation resistance, but the oxidation rate will be exposed to the environment and product factors such as the inherent factors.


Physical Performance

The total heat transfer coefficient of the metal depends on the thermal conductivity of the metal, but also on other factors. In most cases, the film heatsink, the scale and the surface condition of the metal. Stainless steel can keep the surface clean, so its heat transfer is better than other metal with higher thermal conductivity.


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