Stainless Steel 347 Tube

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.

347 stainless steel tube Specification

Specification ASTM A213/ ASME SA213
Surfaces
  • Average roughness value: Ra < 0.8 µm
  • Weld seam area: Ra < 1.6 µm
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
  • Cutting
  • Destructive and Non Destructive
  • Threading
  • Polishing (Electro & Commercial)
  • Draw & Expansion as per required Size & Length
  • Annealed & Pickled Bending
  • Beveling
  • Ultrasonic Testing
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
  • Outer Diameter: +/- 0.2mm
  • Thickness: +/- 10% OR as customer request
  • Length: +/- 10mm

Fit-lok is stockist and distributor of high temperature Stainless Steel Type 347 ERW Tubing

Difference Between SS 347 vs 347H Tube

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.

Various types of 347 SS tube

AISI 347 welded tube

AISI 347 welded tube

347 Stainless Steel Tubing

347 Stainless Steel Tubing

Stainless Steel Type 347 ERW Tubing

Stainless Steel Type 347 ERW Tubing

SS Grade 347 Round Tubing

SS Grade 347 Round Tubing

SA213 TP347 Polished Tube

SA213 TP347 Polished Tube

ASTM A213 TP347 Exhaust Tubing

ASTM A213 TP347 Exhaust Tubing

Stainless Steel 347 Tube Price List

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.

ASTM A213 TP 347 Seamless Tube Chemical composition

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

UNS S34700 Welded Tubing Mechanical properties

Tensile strength Yield Strength Elongation Hardness
520-1100 Mpa 205 Mpa 60 % 160-190

AISI 347 welded tube Physical properties

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.

SA213 TP347 Polished Tube Equivalent grade

STANDARD WNR JIS UNS EN GOST
SS 347 1.455 SUS 347 S34700 X6CrNiNb18-10 08Ch18N12B

Thermal Properties of 347 SS Capillary Tube

Coefficient of thermal expansion 16-18 x10-6 K-1

Thickness Chart of SS 347 Welded Tube

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

Ready stock of stainless steel 347 tube

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

Testing Requirements of AISI 347 Instrumentation Tube

Testing Requirements of AISI 347 Instrumentation Tube

Welding of A213 TP347 Mechanical Tubing

  • 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.