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347 Welded Pipes
Stainless steel Welded Pipes
Stainless steel Pipes
347 Welded Pipes

ASTM A213 ASME SA312 SS 347

ASTM A213, ASME SA312 SS 347 Welded Pipes Manufacturer, Stainless Steel 347/347H Pipe Prices, SS 347H Pipes Exporter, A312 Stainless Steel 347H Seamless Pipes Specification, Stainless Steel 347 Electropolished Pipes Supplier In China.
Product information
347 stainless steel is a columbium/tantalum stabilized austenitic chromium-nickel stainless steel. This material is stabilized against chromium carbide formation by the addition of columbium and tantalum. Since these elements have a stronger affinity for carbon than chromium, columbium-tantalum carbides precipitate within the grains instead of forming at the grain boundaries. 347 should be considered for applications requiring intermittent heating between 800ºF (427ºC) and 1650ºF (899ºC) or for welding under conditions which prevent a post-weld anneal.  347 is non-magnetic.
More details
The Physical Properties of SS347
Density(lb/cu. in.) 0.29
Specific Gravity 8.03
Specific Heat(Btu/lb/Deg F) 0.12
Electrical Resistivity(microhm-cm) 438
Melting Point(Deg F) 2600
The Chemical Composition of SS347, %
Carbon ≤0.08
Manganese ≤2.00
Phosphorus ≤0.045
Sulfur ≤0.030
Silicon ≤0.75
Chromium 17.0-19.0
Nickel 9.0-13.0

Mechanical Properties of SS347
Tensile Strength, min. Yield Strength, min. Elongation Hardness
ksi Mpa ksi Mpa % HBW Rockwell
75 515 30 205 40 201 92HRBW








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