Heat resistant steel SUH446

SUH446 equal material : UNS S44600,AISI 446 ,X8Cr28

Material 1.4083 is heat-resistant steel, the Japanese JIS standard ferrite series heat resistant steel. Because of this kind of steel is ferrite, quenching can not get martensite organization. Because at about 600 degree slow cooling, on the precipitation of alpha phase after annealing embrittlement, therefore, from the 780~ 880 degree air cooling is necessary because of the high temperature oxidation resistance, therefore, the heat resistant parts under 1100 degree (sheet) and anti sulfur gases, high corrosion resistance, used in the heating box, nozzle, domestic oil heater's combustion chamber and other components.

SUH446 Chemical composition

Material	C	Cr	P	S	Mo	N	others
SUH446	0.007	25.7	0.012	0.007	0.8	0.01	Mn: 0.2

SUH446 Physical properties

Density (g/cm3)	Magnetic	Specific heat 250C(J/kg.0C)	Thermal conductivity1000C (W/m.)	Thermal expansion rate　　20~1000C 　　(10-6/0C)
7.75	Exist	500	18.4	11

SUH446 mechanical properties

Material	YS（MPa）	TS(MPa)	EL	HV
SUH446	335	538	30	167

SUH446 Product form
Round bar, Square bar, Plate steel/flat bar, Tube/pipe, sheet, Forging
SUH446 applications
1. X-ray tube bases
2. Boiler baffles
3. Oil burner components
4. Annealing boxes
5. Industrial mufflers
6. Kiln linings
7. Glass molds
8. Furnace parts

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