321H Stainless Steel Sheet

321H is mainly used in the chemical, coal and petroleum industry with high requirements of grain boundary corrosion resistance of outdoor machines, building materials heat resistant parts and parts with difficulties in heat treatment, such as oil exhaust gas combustion pipeline;engine exhaust pipe;boiler shell, heat exchanger, heating furnace components;silencing components for diesel engines;boiler pressure vessel;chemical transport vehicle;expansion joint;spiral welded pipes for furnace pipes and dryers.

Detailed introduction

321H Properties:

Density:7.93 g/cm³

Tensile Strength:≥515 mpa

Yield Strength：≥205 mpa

Elongation：≥40%

Hardness：≤217HB

The chemical composition of 321H：

Grade	C(%)	Si(%)	Mn(%)	P(%)	S(%)	Ni(%)	Cr(%)	Ti(%)
321H	0.04~0.10	0.75	2.00	0.045	0.030	9.00~12.00	17.00~19.00	[4*(C+N)]~1.10

Main: The chemical composition in the table above is the maximum except for the range or minimum values given.

The corrosion resistance of 321H:

321H stainless steel is mainly used in the manufacture of high pressure and over pressure steam boiler pipe with stainless steel seamless steel pipe, such as these often under high temperature and high pressure boiler tube, tube in high temperature flue gas and steam will happen under the action of oxidation and corrosion, so the steel pipe with high rupture strength, high oxidation resistance, and have good organizational stability, hydraulic prop.

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