Stainless Steel 310/310S (UNS S31000/UNS S31008)

Yaang Stainless inventory now includes 310/ 310S Flanges, Pipe Fittings and pipes (Alloy 310 UNS S31000 / Alloy 310S UNS S31008), ideally suited for high-temperature applications such as heat treatment and chemical processing equipment.

Overview

General Properties

Alloy 310 is an austenitic stainless steel that combines excellent high temperature properties with good ductility and weldability. It is typically used for elevated temperature applications as its high chromium and nickel content provide solid corrosion resistance, excellent resistance to oxidation, and superior strength in temperatures up to 2100°F. Due to its high chromium and nickel content, it is superior to 304 or 309 stainless in most environments.

Applications:

The higher alloyed stainless steels generally have excellent strength at elevated temperatures along with outstanding resistance to creep deformation and environmental attack. Therefore, Alloy 310 is used widely in industries such as heat treatment and chemical processing. Some examples include:

• Furnace Parts
• Oil Burner Parts
• Heat Exchangers
• Welding Filler Wire and Electrodes
• Annealing Covers
• Combustion Tubes
• Fire Box Sheets

Value Added Services:

• Need a special length?
  • We can custom level 3/8″ thick x 72″ x 186″ from our plate line to reduce scrap
• Polish plate inventory available
  • We supply #4, #6, and #8 mirror finish
  • Special polishes available
• Plate processing
• Dynamic water jet cutting
• Plate shearing
• Saw cutting
• Plasma cutting and high quality plasma cutting
• Machine cut rings and discs

Resistance

Yaang Stainless inventory now includes 310/ 310S Flanges, Pipe Fittings and pipes provides superior resistance to corrosion and heat exposure, in even the most demanding environments.

Corrosion Resistance:

• Provides excellent corrosion resistance
• High chromium content allows for good aqueous corrosion resistance
• Excellent resistance at normal temperatures and also has good resistance to oxidizing and carburizing atmospheres

Heat Resistance:

• Good resistance to oxidation in intermittent service in air at temperatures up to 1040°C and 1150°C in continuous service.
• Good resistance to thermal fatigue and cyclic heating.
• Widely used where sulphur dioxide gas is encountered at elevated temperatures.
• Continuous use in 425-860°C range not recommended due to carbide precipitation, if subsequent aqueous corrosion resistance is needed
• Generally used at temperatures starting from about 800 or 900°C – above the temperatures at which 304H and 321 are effective.

Processing

Fabrication:

• Commonly used in the heat treatment and process industries due to high temperature and corrosive environments
• Often fabricated into complex structures
• Roller-forms, stamps and draws readily
• Because 310 work hardens, severe forming operations should be followed by an anneal

Weldability:

• Austenitic stainless steel is generally considered to be weldable
• Generally considered to have weldability equivalent to 304 and 304L
• Special consideration is needed to compensate for a higher coefficient of thermal expansion to avoid warping and distortion

Properties

Chemical Properties:

%	Cr	Ni	C	Si	Mn	P	S	Mo	Cu	Fe
310	min: 24.0 max:26.0	min: 19.0 max: 22.0	0.25	0.75	2.0	0.045	0.030	0.75	0.5	balance
310S	min: 24.0 max: 26.0	min: 19.0 max: 22.0	0.08	1.00	2.0	0.045	0.030	0.75	0.5	balance

Mechanical Properties:

Grade	Tensile Strength ksi (min.)	Yield Strength 0.2% Offset ksi (min.)	Elongation - % in 50 mm (min.)	Hardness (Brinell) MAX	Hardness (Rockwell B) MAX
310/310S	75	30	40	217	95

Physical Properties:

Denstiy lbm/in3	Coefficient of Thermal Expansion (min/in)-°F			Electrical Resistivity mW-in		Thermal Conductivity BTU/hr-ft-°F		Specific Heat BTU/lbm -°F	Magnetic Permability (annealed)1	Modules of Elasticity (annealed)2-psi
at 68 °F	at 68 – 212°F	at 68 – 932°F	at 68 – 1832°F	at 68°F	at 1200°F	at 68 – 1832°F	at 68 – 932°F	at 32 – 212°F	at 200H	in tension (E)	in shear (G)
0.29	8.8	9.5	10.5	30.7	—	10.5	10.8	0.12	1.02	29 x 106	11.2 x 106

We are majored in the products as: special steel, duplex steel, stainless steel pipe fitting, flange, steel pipe, standard and nonstandard steel material products. Yaang products are widely used in Shipbuilding, Nuclear power, Marine engineering, Petroleum, Chemical, Mining, Sewage treatment, Natural gas and Pressure vessels and other industries.Our products are according to national standard GB/T12459-90, GB/T13401, U.S. standard ANSI/ASME B16.9, ANSI/ASME B16.5/B16.47, ANSI/ASME B16.11,ANSI/ASME B36.19M/ B36.10M, ASME B16.20,British standard BS,Germany standard DIN,Japan standard JIS...

 

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