310S (UNS S31008 / W.Nr. 1.4845) | HB SPEICAL ALLOY

310SHB Special Alloy2022-04-25T10:07:49+08:00

310S (UNS S31008 / W.Nr. 1.4845)

310S (UNS S31008 / W.Nr. 1.4845) is an austenitic chrome-nickel stainless steel, which features good oxidation resistance, corrosion resistance and acid and alkali resistance. Besides, it embodies excellent high temperature resistance. With high content of chromium and nickel elements, i.e., 25Cr-20Ni, 310S embodies much better creep strength which allows it to work continuously at high temperature (1150 ℃). The high temperature resistant steel tube is specially used for manufacturing electric heating tubes and the like. severely cold worked. It maintains strength at high temperatures as well as sub-zero temperatures.

Equivalent Grades

Trademark	GB	GOST	ASTM	UNS	DIN	W.Nr.	NF	BS	JIS	SS
Inox 310S Acero 310S	06Cr25Ni20	–	AISI 310S	S31008	X8CrNi25-21	1.4845	–	–	–	–

Chemical Composition, %

Alloy	C	Si	Mn	P	S	Cr	Ni	Fe
310S	≤0.08	≤1.50	≤2.00	≤0.045	≤0.030	24.0-26.0	19.0-22.0	Bal

Typical Physical and Mechanical Properties (RT, Annealed)

Density, g/cm3	Melting Point, ℃	Tensile Strength, MPa	Yield Strength, MPa	ELongation, %	Hardness, HRB
7.80	1030-1180	≥515	≥205	≥40	≤95

Available Products and Specifications

Rod, Bar, Wire and Forgings	ASTM A182
Plate, Sheet and Strip	ASTM A167, 240
Pipe and Tube	ASTM A312
Welding Product	–
Others	ASTM A403

Features

Outstanding corrosion resistance
Good aqueous corrosion resistance
Not prone to thermal fatigue and cyclic heating
Superior to Type 304 and 309 in most environments
Good strength in temperatures up to 2100°F

Applications

Because of Type 310S’s excellent general properties a wide range of industries use Type 310S for an number of different applications including:

Furnaces
Oil burners
Heat exchangers
Welding filler wire and electrodes
Cryogenics
Kilns
Food processing equipment