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309S UNS S30908 1.4833 WN SO SW blind plate lap joint flange forging disc ring

Zhengzhou Huitong Pipeline Equipment Co.,Ltd.

City: zhengzhou



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309S UNS S30908 1.4833 WN SO SW blind plate lap joint flange forging disc ring

Brand Name : HT
Model Number : ASTM A182 F309S SO flange
Certification : ISO9001
Place of Origin : China
MOQ : 1 piece
Price : USD 100-100/piece
Payment Terms : Western Union, L/C, T/T
Supply Ability : 10000 pcs/quarter
Delivery Time : 30 days
Packaging Details : wooden case or wooden pallet
Type1 : ASTM A182 F309S WN flange
Type2 : ASTM A182 F309S blind flange
Type3 : ASTM A182 F309S SW flange
Type4 : ASTM A182 F309S SO flange
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309 is an austenitic heat resistant alloy with oxidation resistance to 1900°F under constant temperature conditions. When frequent thermal cycling is involved, the alloy is resistant to about 1850°F. The high chromium and relatively low nickel content of 309 provide good resistance to high temperature sulfur bearing atmospheres. 309 has only moderate resistance to carbon absorption and is not suggested for use in highly carburizing atmospheres.

Often in many product forms, the grain size and carbon content can meet both the 309S and 309H requirements. Prolonged exposure to the 1100-1600°F temperature range will cause some sigma to form, lowering room temperature ductility and impact resistance. Should sigma formation be anticipated, care should be taken to avoid heavy mechanical impact at room temperature. 309 has a machinability rating of 43% relative to AISI B1112 steel. Room temperature forming is suggested. Weld with AWS E309-16 covered electrodes or ER309 bare wire.




AMS 5523
ASME SA 240, ASME SA 312, ASME SA 479
ASTM A 240, ASTM A 276, ASTM A 276 Condition A, ASTM A 276 Condition S, ASTM A 312, ASTM A 479
EN 1.4833
UNS S30908, UNS S30909
Werkstoff 1.4833


309 Pipe, 309 Plate, 309 Rod Coil, 309 Sheet, 309 Weld Wire

Common Trade Names

309 Stainless


· Oxidation resistant to 1900°F

· Moderate strength at high temperature

· Ease of fabrication

· Good sulfidation resistance

· Good weldability


· Annealing covers and boxes

· Carbon saggers

· Waste incinerators

· Pulverized coal burners

· Brazing fixtures

· Lead pans, neutral salt pots

· Muffles, retorts

· Furnace fans and shafts

· Radiant tubes for aluminum and steel annealing

· Glass forming equipment

· Thermowells

· Paper mill equipment

· Power boiler tube hangers

· Rotary kilns and calciners

· Anchor bolts

Physical Properties

Density: 0.285 lb/inch3
Melting Point: 2500 - 2590°F

Temperature, °F701000120014001600
Coefficient* of Thermal Expansion, in/in°F x 10-6-9.7--10.1
Thermal Conductivity, Btu • ft/ft2 • hr • °F7.411.512.4--
Modulus of Elasticity, Dynamic psi x 10628.522.521.019.518.0

* 70°F to indicated temperature.

Mechanical Properties

Representative Tensile Properties

Temperature, °F7012001600
Ultimate Tensile Strength, ksi905218
0.2% Yield Strength, ksi4522-
Elongation, %502632

Typical Creep- Rupture Properties

Temperature, °F1200140016001800
Minimum Creep 0.0001%/Hr, ksi163.41.40.22
10,000 Hour Rupture Strength, ksi17.

We can provide 309S material in the form of flange, fittings, pipes, fasteners.

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