ASTM A213 TP347H Grade Seamless Austenitic Stainless Steel Pipes Diameter 1/2"-20"

Specification of our stainless steel pipe

About 347 Stainless Steel

Alloy 347 is a stabilized, austenitic, chromium steel containing columbium which allows for the elimination of carbide precipitation, and, consequently, intergranualr corrosion. Alloy 347 is stabilized by the additions of chromium and tantalum and offers higher creep and stress rupture properties than alloy 304 and 304L which may also be used for exposures where sensitization and intergranualr corrosion are of concern. The addition of columbium also allows Alloy 347 to have excellent corrosion resistance, even superior to that of alloy 321. 347H is the higher carbon composition form of Alloy 347 and demonstrates improved high temperature and creep properties.

Grade Standard

• ASTM/ASME: UNS S34700 / S34709
• EURONORM: FeMi35Cr20Cu4Mo2
• DIN: 2.4660

Specification of TP347 Stainless Steel Pipe

• ASTM A312/A312M TP347H Stainless steel seamless pipes dimention.
• O.D : 1/8" NB TO 32" NB, (10.29MM-812.80MM).
• W.T: SCH 10S, SCH 40S, SCH 80S, SCH160, SCH XXS.
• ASTM A312/A312M TP347H Stainless Steel Seamless Pipe
• Annealed and Picked
• 100% PMI TESTED
• EN10204.3.1B MILL TEST CERTIFICATE
• THIRD PARTY INSPECTION ACCEPTED
• ASTM A312/A312M TP347H Stainless steel seamless pipes Packing.
• With plastic caps to both ends, Wrapped with Poly bags, pack into bundles. Or pack into plywood boxes as required.

TP347H Seamless Pipe Chemical Composition:

TP347H Seamless Pipe Mechanical Properties:

Application of 347 Stainless Steel

Alloy 347 is frequently used for the fabrication of equipment, which must be placed in service under severe corrosive conditions, and is also common to the petroleum refining industries. Applications that consistently used Alloy 347 include:

• High temperature chemical processes
• Heat exchanger tubes
• High temperature steam service
• High pressure steam pipes
• Radiant superheaters
• Boiler tubes
• Heavy duty exhaust systems
• General refinery piping

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