Nishra Overseas LLP is the biggest manufacturer and supplier of Stainless Steel 347 Pipes, which has somewhat better corrosion resistance than SS 321 in extremely oxidizing situations. The outstanding mechanical qualities of stainless steel 347 tubes make them beneficial for high temperature service as well. SS 347 tubes have better creep and stress rupture characteristics than SS 304 and especially SS 304L, which may also be taken into consideration for exposures where intergranular corrosion and sensitization are issues. Alloy 347 Pipes Tubes is a columbium (niobium) / tantalum stabilized austenitic chromium-nickel stainless steel designed to offer an 18-8 type alloy with enhanced intergranular corrosion resistance. As a result of the combination of columbium (niobium) and tantalum, 347 Stainless Steel Pipes Tubes has slightly better corrosion resistance than other stainless steel alloys in highly oxidizing conditions.
Grade 347 Pipe Tubes were developed to improve creep resistance and strength at temperatures beyond 1000 degrees Fahrenheit (537 degrees Celsius). Stainless Steel 347 Seamless Pipes do not perform well in chloride solutions, even at low concentrations, or in sulfuric acid. Stainless Steel 347 Welded Pipes should be considered for applications that need intermittent heating between 800°F (427°C) and 1650°F (899°C), or for welding under conditions that restrict post-weld annealing. Heat treatment cannot be used to harden stainless steel 347 EFW pipes; instead, cold working is required. It can be easily welded and processed using normal shop fabrication techniques.
Type 347 stainless steel pipe is available in a variety of shapes and forms, including round, square, and rectangular, as well as seamless and welded. Industries such as dairy, pharmaceutical, petrochemical, oil and chemical plants, petroleum, breweries, and others frequently use stainless steel 347H pipes for a variety of applications. The product is widely used in all commercial sectors.
Specifications | ASTM A312/A358, ASME SA312/SA358 |
Dimensions | ASTM, ASME and API |
Standard |
JIS, AISI, ASTM, GB, DIN, EN, etc. |
Surface | Brushed, Mill Finished, Anodized, Sand Blasted, Finished Polished. |
Seamless Pipes Size | 1/2″ NB – 24″ NB. |
ERW Pipes Size | 1/2″ NB – 24″ NB. |
EFW Pipes Size | 6″ NB – 100″ NB. |
Form | Round, Square, Rectangular, Hydraulic etc. |
Length | Single Random, Double Random & Cut Length. |
Types | Seamless / ERW / Welded / Fabricated / LSAW Pipes. |
STANDARD | UNS | WNR. | EN | JIS | GOST |
---|---|---|---|---|---|
SS 347 | S34700 | 1.4550 | X6CrNiNb18-10 | SUS 347 | 08Ch18N12B |
SS 347H | S34709 | 1.4961 | X6CrNiNb18-12 | SUS 347H | - |
Element | C | Cr | Mn | Ni | P | S | Si | Cb/Ta |
---|---|---|---|---|---|---|---|---|
347 | 0.08 max | min: 17.0 max: 20.0 | 2.0 max | min: 9.0 max: 13.0 | 0.04 max | 0.30 max | 0.75 max | min:10x C max: 1.0 |
347H | min: 0.04 max: 0.10 | min: 17.0 max: 20.0 | 2.0 max | min: 9.0 max: 13.0 | 0.03 max | 0.30 max | 0.75 max | min:10x C max: 1.0 |
Grade | Tensile Strength ksi (MPa) min | Yield Strength 0.2% ksi offset ksi (MPa) min | Elongation (% in 50mm) min | Hardness (Brinell) MAX | Hardness (Rockwell B) MAX |
---|---|---|---|---|---|
347/347H | 75 (515) | 30 (205) | 40 | 201 | 95 |
SUS 347H Control lines | SS 347H Grade Precision Pipes |
SS 347H Grade Nuclear Pipes | SS 347H Transmission Pipes |
SS 347H Chemical process Pipes | 347H Food Grade Stainless Steel Pitot Pipes |
347H Food Grade Stainless Steel Medical Pipes | SUS 347H encapsulated coiled Pipes |
UNS S34709 Polish Pipes | 347H SS High Precision Pipes |
347Hs SS Umbilicals | UNS S34700 Nuclear Control Rod Pipes |
AISI 347H EFW Pipes | SS 1.4550 Seamless Pipes |
SS 1.4961 Hydraulic Pipes | 1.4845 SS Gas Pipe Ar 15 |
1.4550 SS High pressure Pipes | DIN 1.4961 Bourdon Pipes |
SUS 347H Instrumentation Pipes | SUS 347 Capillary Pipes |
Grade 347 Electropolished Pipes | Grade 347H Furnace Pipes |
DIN 1.4550 Stainless Steel elliptical and Oval Pipes | DIN 1.4961 Stainless Steel Gas Pipes |
AISI 347H Seamless Heating Pipes | TP347L Decorative Pipes |
SS 347 custom Pipes | Stainless Steel 347H Mortar Pipes |
Stainless Steel 347 SCH 40 Pipes | 347H Stainless Steel Radiant Pipes |
SCH 80 347 Stainless Steel Pipes | SS 347 Grade Square Pipes |
SS 347 Grade Condenser Pipes | SS 347H Heat Exchager Pipes |
347 SS straight Pipe heat exchanger | 347H Food Grade Stainless Steel HSAW Pipes |
Bright Annealed SS 347H Pipes | UNS S34700 Straight Pipe boiler |
SS 1.4550 cold drawn seamless Pipes | Annealed Pickled SS 347 Grade Pipes |
1.4961 SS Aero engine Pipes | UNS S34709 U Shaped Pipes |
DIN 1.4550 Aerospace Engine Pipes | SS 1.4961 Exhaust Pipes |
AISI 347 Furnace Pipes | 1.4550 SS Condensers Pipes |
Stainless Steel 347 Aerospace Pipes | DIN 1.4550 Protection Pipes |
Stainless Steel 347L Drawn over mandrel (DOM) | SUS 347L Pipe for Heat Exchangers |
DIN 1.4550 Stainless Steel Hot finished seamless Pipe (HFS) | Grade 347H redrawn Pipes |
TP347H Cold drawn seamless Pipe (CDS) | DIN 1.4961 Stainless Steel seam-welded Pipes |
347H Stainless Steel Finned Pipes | Stainless Steel 347 Chemical Process Pipes |
SS 347 Grade Pipes for Precision Components | 347 Stainless Steel Welded coiled Pipes |
SUS 347 Round Pipes | 347L Food Grade Stainless Steel header Pipes |
SUS 347 Rectangular Pipes | 347L SS Cold Rolled Coiled Pipes |
SUS 347 Boiler Pipes | UNS S34700 Seamless Hollow Pipes |
1.4550 SS Hexagonal Pipes | DIN 1.4961 Hollow Pipes |
AISI 347H thermocouple Pipes | DIN 1.4550 DSAW Pipes |
AISI 347H Super Heater Pipes | AISI 347 Decorative Pipes |
DIN 1.4550 Stainless Steel ERW Pipes | Grade 347H Oil Pipes |
TP347H Colour Coated Pipes | DIN 1.4550 Stainless Steel Thick Wall Pipes |
Stainless Steel 347H Welded Pipes | TP347 Triangle Pipes |
347H Stainless Steel Secondary & Surplus Pipes | Stainless Steel 347 High-strength capillary Pipes |
SS 347H Grade Outside Polished Pipes | 347H Stainless Steel Bellows Pipes |
SS 347 Polished Pipes | 347H SS Cold Drawn Pipes |
Stainless Steel 347H Electric Fusion Welding Pipes | 347 Stainless Steel LSAW Pipes |
SS 347 Grade heat resistant Pipes | UNS S34700 seamless straight Pipes |
Oil and Gas Processing | Dairy and Food Processing |
Desalination | Pesticides |
Pulp and Paper | Sugar Factory |
Energy industries | Power Plants |
Ship Building | Fertilizers |
Machine Building | Nuclear |
Pharmaceuticals | Chemicals |
Textile Machinery | Synthetic Fibers |
Construction | Modern Architecture |
Refinery & Petrochemicals | Water treatment facilities |
Nishra Overseas manufactures high-quality stainless steel 347/347H pipes in accordance with ISO 9001:2015 and ASTM standards. Our product development is primarily focused on customer happiness and dependability. For product and quote inquiries, get in touch with us right now.
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