Our Products Range
SS ASTM A312 TP347H Seamless Pipes, SS 347 Tubing , SS 347 Welded Tube, ASTM A358 Stainless Steel 347H EFW Pipe Supplier, ASTM A213 Stainless Steel 347 Tubes Exporter, Stainless Steel 347 Pipes Manufacturer in India.
Stainless Steel 347 Pipes and Tubes are manufactured from a niobium-stabilized austenitic stainless steel grade that provides excellent resistance to intergranular corrosion. This alloy contains chromium, nickel, and columbium, which helps prevent carbide precipitation during welding and high-temperature exposure. These pipes are designed for applications that require both corrosion resistance and thermal stability. ERAMETS STEEL ALLOYS PVT LTD is a trusted Manufacturer, Supplier, Stockist, and Exporter of Stainless Steel 347 Pipes and Tubes in Mumbai, India, supplying certified quality material for critical industrial services.
SS 347 Seamless Pipes are produced from solid billets without welded joints, offering high mechanical strength and uniform wall thickness. These pipes perform well in high-pressure and high-temperature systems such as heat exchangers, boilers, and refinery piping. ASTM A312 TP 347 Seamless Pipes ensure accurate dimensions and smooth internal surfaces for efficient fluid flow. Stainless Steel 347 Welded Pipes and UNS S34700 ERW Pipes are manufactured using advanced fusion welding technology for fabrication and structural applications.
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The niobium stabilization in Stainless Steel 347 Tubes improves resistance to oxidation and scaling at temperatures up to 900°C. These tubes also maintain excellent toughness at cryogenic temperatures and show strong elongation properties for forming operations. Industries widely use 347 Stainless Steel Tubing in chemical processing plants, petroleum refineries, power generation units, and aerospace components.
Our product range includes ASME SA 312 Grade 347 Round Pipes, AISI 347 Square Pipes, and DIN 1.4550 Rectangular Pipes for different construction and engineering needs. These shapes allow easy installation in compact and complex layouts. ASTM A312 Gr TP 347 Polished Pipes feature smooth and bright finishes that enhance corrosion resistance and improve appearance for exposed piping systems.
1.4550 SS 347 Schedule 40 Pipes are suitable for low and medium pressure services. These pipes provide excellent weldability without post-weld heat treatment and retain strength in high-temperature environments. Their smooth internal bore reduces scaling and supports continuous fluid flow. Cold-rolled and annealed finishes further increase durability and surface quality.
All Stainless Steel 347 Pipes and Tubes supplied by ERAMETS STEEL ALLOYS PVT LTD are tested and certified as per ASTM, ASME, DIN, and EN standards. Each product undergoes chemical analysis, mechanical testing, hydrostatic testing, and dimensional inspection. We offer customized sizes, certified mill test reports, competitive pricing, secure packaging, and timely delivery across Mumbai and throughout India. For specifications, availability, and the latest price of SS 347 Pipes and Tubes, contact our sales team today.
Specification of Stainless Steel 347/ 347H Pipe & Tube
| Specifications | ASTM A312 / ASME SA312 |
| Dimensional specification | ANSI/ASME B36.19M, ANSI/ASME B36.10M |
| Size | 1 / 8″ NB – 24″ NB |
| Outside Diameter | 6.00 mm OD up to 914.4 mm OD, Sizes up to 24” NB available Ex-stock, OD Size Steel Tubes available Ex-stock |
| Manufacturing Shapes | Hydraulic, Round, Square, Hex, Honed |
| Manufacturing Techniques | Normalized & as Rolled |
| Schedule Thickness Range | SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS |
| End Types | Plain End, Beveled End, Treaded One End, TBE (Treaded Both Ends) |
| Surface Finish | No.1, No.4, No.8 Mirror Finish, 2B |
| Value Added Services | Cutting, Beveling, Polishing, Threading, Destructive, Non Destructive, Ultrasonic Testing |
| Inspection and Test Reports | EN 10204 3.1, Mill Test Certificates, Chemical Reports, PMI Test Reports, Mechanical Reports, Third Party Inspection, NABL Approved Lab, Visual Inspection, Destructive Test and Non Destructive Test Reports |
| Outside Finish | 2B, No.4, No.1, No.8 Mirror Finish for Stainless Steel Seamless Pipes, Finish as per customer Requirements |
| Delivery Condition | Annealed and Pickled, Polished, Bright Annealed, Cold Drawn |
| Heat Treatment | Normalized, Normalized & Tempered |
| Packing of Seamless Pipes | Packed in Wooden Boxes, Plastic Bags, Steel Strips Bundled, or as per Customers Requests |
| Specials | Sizes and Specifications other than above can be on request |
347/347H Stainless Steel Pipes and Tubes Equivalent Grades
| 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 | – |
Chemical Composition of Stainless Steel 347/347H Seamless Pipes And Tubes
| lement | 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 |
Mechanical Properties Of Stainless Steel 347/347H Seamless Pipes and Tubes
| rade | 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 |
Physical Properties of 347/347H Stainless Steel Pipes And Tubes
| Density lbm/in3 | Coefficient of Thermal Expansion (min/in)-°F | Thermal Conductivity BTU/hr-ft-°F | Specific Heat BTU/lbm -°F | Modules of Elasticity (annealed)2-psi | |
|---|---|---|---|---|---|
| at 68 °F | at 68 – 212°F | at 68 – 1832°F | 68-932°F | at 32 – 212°F | in tension (E) |
| 0.288 | 9.2 | 11.4 | 14.7 | 0.12 | 28 x 106 |
Other Types of Stainless Steel Pipes & Tubes
| Stainless Steel Seamless Pipes & Tubes | Stainless Steel Welded Pipes & Tubes |
| Stainless Steel ERW Pipes & Tubes | Stainless Steel EFW Pipes & Tubes |
| Stainless Steel Cold Drawn Pipes & Tubes | Stainless Steel Hot Finished Pipes & Tubes |
| Stainless Steel Schedule 10 Pipes & Tubes | Stainless Steel Schedule 20 Pipes & Tubes |
| Stainless Steel Schedule 40 / 40S Pipes & Tubes | Stainless Steel Schedule 80 Pipes & Tubes |
| Stainless Steel Schedule 160 Pipes & Tubes | Stainless Steel XXS Pipes & Tubes |
| Stainless Steel Heavy Wall Pipes & Tubes | Stainless Steel Thin Wall Pipes & Tubes |
| Stainless Steel Polished Pipes & Tubes | Stainless Steel Bright Annealed Pipes & Tubes |
| Stainless Steel Pickled Pipes & Tubes | Stainless Steel Mill Finish Pipes & Tubes |
| Stainless Steel Large Diameter Pipes & Tubes | Stainless Steel Small Diameter Pipes & Tubes |
| Stainless Steel Round Pipes & Tubes | Stainless Steel Square Pipes & Tubes |
| Stainless Steel Rectangular Pipes & Tubes | Stainless Steel Oval Pipes & Tubes |
| Stainless Steel Hollow Section Pipes & Tubes | Stainless Steel Structural Pipes & Tubes |
| Stainless Steel Fabricated Pipes & Tubes | Stainless Steel Precision Pipes & Tubes |
| Stainless Steel Heat Exchanger Pipes & Tubes | Stainless Steel Boiler Pipes & Tubes |
| Stainless Steel Instrumentation Pipes & Tubes | Stainless Steel Sanitary Pipes & Tubes |
| Stainless Steel Pressure Pipes & Tubes | Stainless Steel Process Pipes & Tubes |
| Stainless Steel Mechanical Pipes & Tubes | Stainless Steel Decorative Pipes & Tubes |
| Stainless Steel Industrial Pipes & Tubes | Stainless Steel Custom Size Pipes & Tubes |
| Stainless Steel Cut Length Pipes & Tubes | Stainless Steel Random Length Pipes & Tubes |
| Stainless Steel Plain End Pipes & Tubes | Stainless Steel Bevel End Pipes & Tubes |
