Stainless Steel 347H is a niobium-stabilized austenitic stainless steel that exhibits excellent mechanical properties and offers outstanding resistance to intergranular corrosion. The presence of higher carbon content in 347H (compared to SS 347) ensures improved high-temperature strength, making it ideal for heat exchangers, superheaters, boiler tubes, and petrochemical applications. These pipes are especially suitable in environments where sensitization and carbide precipitation are a concern due to prolonged exposure to high heat.
At Nascent Pipe & Tubes, our SS 347H Seamless Pipes and SS 347H Welded Pipes are fabricated using top-grade raw materials and advanced techniques, ensuring durability and precision.
Stainless Steel 347H Pipes Manufacturers, Stainless Steel 347H Pipes Suppliers, Stainless Steel 347H Pipes Stockists, Stainless Steel 347H Pipes Exporters
Stainless Steel 347H Pipes Manufacturers in India, Stainless Steel 347H Pipes Suppliers in India, Stainless Steel 347H Pipes Stockists in India, Stainless Steel 347H Pipes Exporters in India
Our SS 347H Pipes are known extensively for their reliability in enduring harsh conditions when subjected to cyclic heating and cooling. These pipes find extensive application where high mechanical stress and high-pressure steam systems exist. These kinds of pipes from Adinox Overseas form part of our offerings ranging from seamless, welded, ERW and fabricated forms and conforming according to international standards like ASTM A312, A213, and A269.
Stainless Steel 347H Pipes Manufacturers In Mumbai, Stainless Steel 347H Pipes Suppliers In Mumbai, Stainless Steel 347H Pipes Stockists In Mumbai, Stainless Steel 347H Pipes Exporters In Mumbai
Choose Nascent Pipe & Tubes for your Stainless Steel 347H Pipe requirements and experience the difference of working with a trusted industry leader committed to quality, innovation, and customer satisfaction. Backed by extensive industry expertise, we strive to exceed expectations with every product we deliver.
Specification of Stainless Steel 347H Seamless Pipes
Stainless Steel Pipe Specification : ASTM A312, A358 / ASME SA312, SA358
SS Tube Specification : ASTM A213, A269, A249, A511, A554 / ASME SA213, SA269, SA249, SA511, SA554
Pipe Size :1/8” NB to 24” NB, 1/4” OD to 24” OD sizes.
Tube Size :1/2" OD to 8" OD.
Thickness Range :0.3mm – 50 mm, SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS
Type :Seamless / ERW / Welded / Fabricated Pipes
Form : Round, Square, Rectangular, Oval, Hydraulic Etc
Length :Single Random, Double Random & Required Length
End : Plain End, Beveled End, Treaded
End Protection : Plastic Caps
Outside Finish :2B, No.4, No.1, No.8 Mirror Finish for Stainless Steel Pipes, Finish as per customer Requirements
Delivery Condition : Annealed and Pickled, Polished, Bright Annealed, Cold Drawn
Inspection, Test Reports :Mill Test Certificates, EN 10204 3.1, Chemical Reports, Mechanical Reports, PMI Test Reports, Visual Inspection Reports, Third Party Inspection Reports, NABL Approved Lab Reports, Destructive Test Report, Non Destructive Test Reports
Packing :Packed in Wooden Boxes, Plastic Bags, Steel Strips Bundled, or as per Customers Requests
Specials :Sizes and Specifications other than above can be manufactured on request
Chemical Composition of Stainless Steel 347H Seamless Pipes
| C | Mn | Si | P | S | Cr | Ni | N | |
|---|---|---|---|---|---|---|---|---|
| 347H | 0.07max | 2.0max | 0.75max | 0.045max | 0.03max | min: 18.0 max: 20.0 | min: 8.0 max: 10.5 | — |
Mechanical Properties Of Stainless Steel 347H Seamless Pipes
| Grade | Tensile Strength ksi (min) | Yield Strength 0.2% ksi (min) | Elongation % | Hardness (Brinell) MAX | Hardness (Rockwell B) MAX |
|---|---|---|---|---|---|
| 347H | 75 | 30 | 40 | 201 | 92 |
Physical Properties of Stainless Steel 347H Seamless Pipes
| SS 316 | ||||||
|---|---|---|---|---|---|---|
| Density lbm/in3 | Thermal Conductivity (BTU/h ft. °F) | Electrical Resistivity (in x 10-6) | Modulus of Elasticity (psi x 106 | Coefficient of Thermal Expansion (in/in)/ °F x 10-6 | Specific Heat (BTU/lb/ °F) | Melting Range (°F) |
| at 68°F: 0.285 | 9.4 at 212°F | 28.3 at 68°F | 28 | 9.4 at 32 – 212°F | 0.1200 at 68°F to 212°F | 2500 to 2590 |
Equivalent Grades Stainless Steel 347H Seamless Pipes
| STANDARD | WERKSTOFF NR. | UNS | JIS | EN |
|---|---|---|---|---|
| SS 347H | 1.4438 | S34700 | SUS 347H | X2CrNiMo18-15-4 |
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