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347H Stainless Steel Tube

Carbon (C) 0.04% max
Chromium (Cr) 17.0 – 20.0%
Nickel (Ni) 9.0 – 13.0%
Manganese (Mn) 2.0% max
Silicon (Si) 0.75% max
Phosphorus (P) 0.045% max
Sulfur (S) 0.03% max
Columbium/Tantalum (Cb/Ta) 10x(C+N) min, 1.00% max
Tensile Strength (Ultimate) 75 ksi (515 MPa)
Yield Strength (0.2% offset) 30 ksi (205 MPa)
Elongation (% in 2 inches) 40%
Hardness (Rockwell B) 90 max

Products can be customized

Descption

347H Stainless Steel Tube is an austenitic chromium steel grade that contains columbium as a stabilizer to eliminate carbide precipitation and intergranular corrosion in the material. Additionally, this grade offers superior general corrosion resistance over standard 304 stainless steel, with excellent forming and welding qualities as well as toughness suitable for service at subzero temperatures.

Industrial silicone can be used in the production of many products. It comes in various forms such as pipes, sheets, plates, bars and tubes with various finishes and colors to meet customer specifications.

Property Value
Carbon (C) 0.04% max
Chromium (Cr) 17.0 – 20.0%
Nickel (Ni) 9.0 – 13.0%
Manganese (Mn) 2.0% max
Silicon (Si) 0.75% max
Phosphorus (P) 0.045% max
Sulfur (S) 0.03% max
Columbium/Tantalum (Cb/Ta) 10x(C+N) min, 1.00% max
Tensile Strength (Ultimate) 75 ksi (515 MPa)
Yield Strength (0.2% offset) 30 ksi (205 MPa)
Elongation (% in 2 inches) 40%
Hardness (Rockwell B) 90 max
Density 0.288 lb/in3 (7.96 g/cm3)
Electrical Resistivity 29.1 Microhm-in at 68°F (16.4 Microhm-cm at 20°C)
Thermal Conductivity 9.0 BTU/hr-ft-°F (15.6 W/m-K)
Specific Heat Capacity 0.12 BTU/lb-°F (0.5 kJ/kg-K)

This material has found widespread application in oil refining, chemical processing, power generation and transportation due to its resistance to corrosive media at both high and low temperatures.

It can be welded using most common welding techniques such as ERW and RTAW. Furthermore, it may be heat treated or cold worked to improve its properties.

This material boasts higher ductility than other austenitic steels, as well as its remarkable resistance to corrosion when subjected to sensitization.

Furthermore, it offers greater tensile and yield strength than other alloys in its class. Furthermore, it is nonmagnetic and exhibits good mechanical properties even at elevated temperatures.

In the petroleum refining industry, titanium is commonly employed to manufacture radiant superheaters, boiler tubes and high pressure steam pipe. Additionally, it’s employed in heavy-duty exhaust systems and manifolds.

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