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Product Details
Alloy 347 (UNS S34700) is a columbium stabilized austenitic stainless steel with good general corrosion resistance and somewhat better resistance in strong oxidizing conditions than 321 (UNS S32100). It has excellent resistance to intergranular corrosion after exposure to temperatures in the chromium carbide precipitation range of 800 – 1500°F (427 – 816°C). The alloy has good oxidation resistance and creep strength to 1500°F (816°C). It also possesses good low temperature toughness.
Alloy 347H (UNS S3409) is the higher carbon (0.04 – 0.10) version of the alloy. It was developed for enhanced creep resistance and for higher strength at temperatures above 1000°F (537°C). In most instances, the carbon content of the plate enables dual certification.
Shape: Round, Square, Rectangular, Hexagonal, Slot, Oval, etc
Outer Diameter:
1) Round pipe: 8mm to 680mm
2) Square pipe: 10x10mm to 300x300mm
3) Rectangular pipe: 10x20mm to 120x180mm
Thickness:
1) Seamless pipe: 0.6mm – 30mm
2) Welded pipe: 0.5mm – 25mm
Application: Decoration, construction, upholstery, industry instrument, medical equipment, seawater environment, petrochemical, fertilizer, oil refining, oil and natural gas, light/food, paper pulp and making paper, energy and environmental protection industry, ect
Chemical Analysis
Weight % (all values are maximum unless a range is otherwise indicated)
Element | 347 | 347H |
Chromium | 17.00 min.-19.00 max. | 17.00 min.-19.00 max. |
Nickel | 9.00 min.-13.00 max. | 9.00 min.-13.00 max. |
Carbon | 0.08 | 0.04 min.-0.10 max. |
Manganese | 2 | 2 |
Phosphorus | 0.045 | 0.045 |
Sulfur | 0.03 | 0.03 |
Silicon | 0.75 | 0.75 |
Columbium & Tantalum | 10 x (C + N) min.-1.00 max. | 8 x (C + N) min.-1.00 max. |
Iron | Balance | Balance |
Product Details
Alloy 347 (UNS S34700) is a columbium stabilized austenitic stainless steel with good general corrosion resistance and somewhat better resistance in strong oxidizing conditions than 321 (UNS S32100). It has excellent resistance to intergranular corrosion after exposure to temperatures in the chromium carbide precipitation range of 800 – 1500°F (427 – 816°C). The alloy has good oxidation resistance and creep strength to 1500°F (816°C). It also possesses good low temperature toughness.
Alloy 347H (UNS S3409) is the higher carbon (0.04 – 0.10) version of the alloy. It was developed for enhanced creep resistance and for higher strength at temperatures above 1000°F (537°C). In most instances, the carbon content of the plate enables dual certification.
Shape: Round, Square, Rectangular, Hexagonal, Slot, Oval, etc
Outer Diameter:
1) Round pipe: 8mm to 680mm
2) Square pipe: 10x10mm to 300x300mm
3) Rectangular pipe: 10x20mm to 120x180mm
Thickness:
1) Seamless pipe: 0.6mm – 30mm
2) Welded pipe: 0.5mm – 25mm
Application: Decoration, construction, upholstery, industry instrument, medical equipment, seawater environment, petrochemical, fertilizer, oil refining, oil and natural gas, light/food, paper pulp and making paper, energy and environmental protection industry, ect
Chemical Analysis
Weight % (all values are maximum unless a range is otherwise indicated)
Element | 347 | 347H |
Chromium | 17.00 min.-19.00 max. | 17.00 min.-19.00 max. |
Nickel | 9.00 min.-13.00 max. | 9.00 min.-13.00 max. |
Carbon | 0.08 | 0.04 min.-0.10 max. |
Manganese | 2 | 2 |
Phosphorus | 0.045 | 0.045 |
Sulfur | 0.03 | 0.03 |
Silicon | 0.75 | 0.75 |
Columbium & Tantalum | 10 x (C + N) min.-1.00 max. | 8 x (C + N) min.-1.00 max. |
Iron | Balance | Balance |
