Name: Stainless Steel 347H Pipe

Size: 1/2" NB – 8" NB

Material: Stainless Steel

Type：Seamless / ERW / Welded / Fabricated / CDW

Thickness range: Schedule 5S – Schedule XXS (heavier on request)

Surface Treatment: Polishing, Hairline, Pickled, etc.

Finished condition: Round, Square, Rectangular, Coil，U Tube

Application: Petrochemical, Oil & Gas； Geothermal, Mining；Chemical Process, Pharmaceutical, Biomass；Sea Water, Water Desalination； LNG (Liquefied Natural Gas), Nuclear Power, Solar Power。

Original: Wenzhou,Zhejiang

Standard:Seamless ASTM A269 / 312/ 213, Welded ASTM A269 / 312 / 358 / 249 / 409 / 778

Package: Packed in woven bag, or put in wooden case

Delivery: Accord Quantity

 

Product Detail

347H stainless steel pipe is a high carbon austenitic stainless steel pipe, with an excellent heat-resistance material which is applied to boiler, heat exchanger, car and aircraft exhaust, chemical equipment etc.

As a higher grade from AISI 321H, the intergranular corrosion of 347H is achieved through the use of niobium (Nb) as a stabilizing element to maximize this feature.  SS 347 has a good mechanical properties，welding performance, excellent resistance to intergranular corrosion .

 

Specification of 347H Stainless Steel Seamless pipe

 

Standard	Seamless ASTM A269 / 312/ 213, Welded ASTM A269 / 312 / 358 / 249 / 409 / 778
Grade	347H
Type	Seamless, ERW, Welded, EFW
Length	Single Random, Double Random & Required Length
End	Plain End, Bevelled End, Threaded

 

Applications of 347H Stainless Steel Seamless pipe

• Oil and gas equipment
• Offshore technology
• Seawater desalination plants
• Chemical industry, especially when handling chlorides
• Flue-gas cleaning
• Pulp and paper industry
• Cargo tanks and pipe systems in chemical tankers
• Firewalls and blast walls on offshore platforms
• Bridges
• Storage tanks
• Pressure vessels, reactor tanks, and heat exchangers
• Rotors, impellers and shafts

 

Stainless Steel 347H pipes Chemical Composition

Grade	C	Mn	P	S	Si	Ni	Cr	Nb	Weight %
347H	0.04					11.00	18.00	8C	Min.
	0.10	2.00	0.045	0.03	1.00	15.00	20.00	1.00	Max.

 

347H Stainless Steel Pipe Mechanical Properties ASTM A312, ASTM A269, ASTM A213

Grade	Tensile Strength, Min. Mpa	Yield Strength, Min. Mpa	Longitudinal
347H	515	205	35

 

 

Stainless Steel 347H Pipes Equivalent Grades

Standard	SS 347	SS 347H
UNS	S34700	S34709
Werkstoff Nr.	1.4550