Top notch ASTM A213 TP347 Tube supplier in India
Fit-Lok is a leading manufacturer and supplier of Stainless Steel 347 Tube, we are exporting these tubes in India and international markets. We manufacture these ASTM A213 TP347 Tubes in seamless and welded form as per requirement of customers. These SS 347 tubes are stabilized with niobium, which prevents intergranular corrosion during high temperature welding and service, which makes them a preferred choice for aerospace, chemical processing, power generation, and petrochemical industries.
We stock and supply UNS S34700 tubing in Schedule 5 to Schedule XXS thickness range and offer multiple delivery conditions including mill finish and bright annealed. Every batch of AISI 347 tube is backed by value added processing services such as cutting, threading, beveling, bending, polishing, and both destructive and non destructive testing, ensuring dimensional accuracy and material integrity before dispatch.
As a stockist and distributor, Fit-Lok maintains ready inventory of SA213 TP347 tubes in square, rectangular, round, oval and coil forms, minimizing lead times for urgent project requirements. With strict adherence to international standards, transparent pricing, and a strong quality control process, Fit-Lok remains a trusted source for SS 347 tubes for engineering companies, EPC contractors, and industrial buyers seeking dependable, certified stainless steel tubing solutions.
Table of content
- 347 stainless steel tube Specification
- Difference Between SS 347 vs 347H Tube
- Various types of 347 SS tube
- Stainless Steel 347 Tube Price List
- ASTM A213 TP 347 Seamless Tube Chemical composition
- UNS S34700 Welded Tubing Mechanical properties
- AISI 347 welded tube Physical properties
- SA213 TP347 Polished Tube Equivalent grade
- Thermal Properties of 347 SS Capillary Tube
- Thickness Chart of SS 347 Welded Tube
- Ready stock of stainless steel 347 tube
- Testing requirements of AISI 347 Instrumentation tube
- Welding of A213 TP347 Mechanical Tubing
| Specification | ASTM A213/ ASME SA213 |
| Surfaces | |
| Standard length | 6 metres |
| Delivery Condition | MF, Bright Annealed, Polished, Annealed and Pickled, Cold Drawn |
| Thickness Range | Schedule 5 to Schedule XXS |
| Manufacturing Type | CEW / Seamless / DOM / ERW / Fabricated / Welded / CDW / CDS / 100% X Ray Welded |
| Surface Finish | BA, 500G, 2B, No.1, No.3, No.8, 800G Mirror finish, 8K, HL, No.4, 2D, Mirror Polished, 1D, 180G, 400G Satin/ Hairline, 320G, 400G, 600G |
| Value Added Services |
|
| END | Plain End, Beveled End, Treaded Tubes |
| Processing Service | Welding, Decoiling, Bending, Punching, Cutting, Moulding |
| Technique | Cold drawn, Cold rolled, Hot rolled, Extrusion Tubes |
| Tolerance |
Fit-lok is stockist and distributor of high temperature Stainless Steel Type 347 ERW Tubing
| Property | SS 347 | SS 347H |
|---|---|---|
| Carbon content | 0.08% max | 0.04% – 0.10% |
| UNS Number | S34700 | S34709 |
| Grain size | No requirement | Coarser grain |
| High-temp strength | Good | Better creep and stress rupture strength |
| Typical service temp | Up to ~870°C | Suited for prolonged exposure above 550°C |
| Cost | Slightly lower | Marginally higher due to controlled carbon/grain size |
SA213 TP347 Polished Tube is suitable to use in sour gas environments.

AISI 347 welded tube

347 Stainless Steel Tubing

Stainless Steel Type 347 ERW Tubing

SS Grade 347 Round Tubing

SA213 TP347 Polished Tube

ASTM A213 TP347 Exhaust Tubing
| Product | Price in USD (Kg) |
Price in Dirham (Kg) |
Price in Euro (Kg) |
|---|---|---|---|
| 8NB OD SS 347 Seamless Tube, Sch 40 | US $3.26 | 11.97 AED | € 2.80 |
| OD 219.1MM X 12.7MM AISI 347 Welded Tubing | US $2.94 | 10.80 AED | € 2.53 |
Refer sizes and dimension of UNS S34700 Condenser Tubes.
| Grade | C | Si | Mn | S | P | Ni | Cb | Cr | Fe |
|---|---|---|---|---|---|---|---|---|---|
| SS 347 | 0.08 max | 1.0 max | 2.0 max | 0.030 max | 0.045 max | 9.00 – 13.00 | 10xC – 1.10 | 17.00 – 20.00 | 62.74 min |
| Tensile strength | Yield Strength | Elongation | Hardness |
|---|---|---|---|
| 520-1100 Mpa | 205 Mpa | 60 % | 160-190 |
| Density | Melting point | Modulus of elasticity | Electrical resistivity |
|---|---|---|---|
| 7.93 g.cm-3 | 1400-1425 °C | 190-210 GPa | 70-73 µOhm.cm |
Choose ASTM A213 TP347 Exhaust Tubing for superior surface finish and tight tolerances.
| STANDARD | WNR | JIS | UNS | EN | GOST |
|---|---|---|---|---|---|
| SS 347 | 1.455 | SUS 347 | S34700 | X6CrNiNb18-10 | 08Ch18N12B |
| Coefficient of thermal expansion | 16-18 x10-6 K-1 |
|---|
| Tube OD (inches) | Wall Thickness (inches) | Schedule |
|---|---|---|
| 1/8 | 0.035 | SCH 10 |
| 1/4 | 0.049 | SCH 40 |
| 3/8 | 0.049 | SCH 40 |
| 1/2 | 0.049 | SCH 40 |
| 1/2 | 0.083 | SCH 80 |
| 3/4 | 0.049 | SCH 40 |
| 3/4 | 0.083 | SCH 80 |
| 1 | 0.065 | SCH 40 |
| 1 1/4 | 0.14 | SCH 40 |
| 1 1/2 | 0.14 | SCH 40 |
| 1 1/2 | 0.14 | SCH 80 |
| 2 | 0.14 | SCH 40 |
| 3 | 0.14 | SCH 80 |
| ASME SA213 TP347 Square Tubing | Stainless Steel Type 347 EFW Tube |
| SA213 347 SS Decorative Tube | ASME SA213 TP347 Polished Tube |
| DIN 1.4550 Stainless Steel 347 Polish Tube | ASTM A 213 347 Stainless Steel Elliptical and Oval Tubes |
| ASTM A 213 347 Stainless Steel Seamless Tubing | SS 347 Coil Tubing |
| SA 213 TP 347 Stainless Steel High Pressure Tube | ASTM A213 TP 347 Heat exchanger Tubes |
| 347 Stainless Steel Exhaust Tubing | Stainless Steel DIN 1.4550 ERW Tube |
| SA213 TP347 Rectangular Tubing | SS UNS S34700 ERW Tubing |
| JIS SUS347 UNS S34700 Cold Drawn Tube | SA 213 Grade 347 Condenser Tubes |

- TIG-Welding
- Laser Beam Welding
- MAG Welding Solid Wire
- Arc Welding (E)
- Submerged Arc Welding (SAW)
FAQs
Is Stainless Steel 347 tube suitable for high temperature applications?
Yes. AISI 347 is particularly useful for elevated temperature service because its niobium stabilization
What is the difference between SS 347 and SS 304 tubes?
SS 347 is stabilized with niobium, while SS 304 is not. This makes SS 347 better suited to applications involving prolonged exposure to elevated temperatures
Can AISI 347 tubes be welded?
Yes. Stainless Steel 347 has good weldability
Is SS 347 tube suitable for acidic environments?
It can be used in certain acidic environments, but suitability depends heavily on the acid concentration, temperature, exposure time and contaminants.
