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304H Stainless steel platecoil
304H Stainless steel platecoil
304H Stainless steel platecoil
304H Stainless steel platecoil
304H Stainless steel platecoil
304H Stainless steel platecoil
304H Stainless steel platecoil

304H Stainless steel platecoil

The H in 304H refers to high temperature. High carbon content is the guarantee of high temperature strength. GB150 requires that when austenitic steel is used above 525 degrees, the carbon content is not less than 0.04%. Carbides are strengthening phases, especially high temperature strength. Better than pure austenite.


Lower carbon content minimizes the amount of carbides precipitated in the heat affected zone near the weld, and the precipitation of carbides may lead to intergranular corrosion (welding corrosion) of stainless steel in some environments.


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304H stainless steel. The internal branch of 304 stainless steel has a carbon mass fraction of 0.04% to 0.10%, and its high temperature performance is better than that of 304 stainless steel.


Chemical Composition and Mechanical Property

GradeC(%)Mn(%)P(%)S(%)Si(%)Cr(%)Ni(%)
304H0.04-0.1
2.000.0450.0300.7518.00-20.008.00-15.00

Grade

Yield Strength

(Mpa)

Yield Strength

(Mpa)

50mm Elongation

(%)

Brinell hardnessRockwell hardnessCold Bend
304H
≥515≥205≥40≥201≥92No Requirement



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