ASTM A213 TP347 Stainless Steel Seamless Heat Exchanger Tube
ASTM A213 TP347 is a seamless, austenitic stainless steel pipe used in high-temperature heat exchangers and boilers for its high strength and excellent corrosion resistance, particularly against sensitization.
GNEE's ASME SA-213 TP347 stainless steel pipe is an austenitic, acid-resistant steel stabilized with niobium (niobium) for use in temperatures between 800°F and 1500°F (427°C and 816°C), where chromium carbide precipitation degrades the performance of other stainless steels, such as 304.
GNEE, as one of the leading suppliers of 347 stainless steel pipe, offers this material at the most competitive prices. In addition to hardness, flattening, tensile, and expansion tests, every 347 stainless steel pipe produced to the ASTM A213 specification undergoes non-destructive electrical or hydrostatic testing. Austenitic grade ASTM A213 TP347 alloy is designed for superheater, steel boiler, and heat exchanger tubing applications.

ASTM A213 ASME SA-213 TP347 Stainless Steel Tubes Quick Details
Country/Region: China
Product Name:ASTM A213 ASME SA-213 TP347 Stainless Steel Tubes
FOB Price: US $4000-5000 / Ton | 1 Ton/Tons (Min. Order)
Specifications: 57mm*8mm; 60mm*9mm; 45mm*11mm, 51mm*12mm etc.
Payment:L/C or T/T
Package:Standard export package,suit for all kinds of transport, or as required
Surface Condition
ASTM A213 ASME SA-213 TP347 Stainless steel tubes shall be pickled free of scale.
When bright annealing is used, pickling is not necessary.
Any special finish requirement shall be subject to agreement between the supplier and the purchaser.
ASTM A213 TP 347 Tube Chemical Composition
| TP347 | Maximum | Minimum |
|---|---|---|
| Ni | 13.00 | 9.00 |
| C | 00.08 | 00.04 |
| Mn | 2.00 | - |
| P | 00.045 | - |
| S | 00.030 | - |
| Si | 1.00 | - |
| Cr | 20.0 | 17.0 |
| Mo | 3 - 4 | - |
| N | - | - |
| OTHER | 1.0 | Nb=10(C+N) |
ASTM A213 TP347 Heater Tubes Mechanical Properties
| Hardness - Brinell | 160-190 |
| Elongation ( % ) | <60 |
| Modulus of elasticity ( GPa ) | 190-210 |
| impact strength ( J.m-1 ) | 20-136 |
| Tensile strength ( MPa ) | 520-1100 |
Physical Properties of SS 347 Seamless Tubes
| Grade | Density (kg/m3) | Thermal Conductivity (W/m.K) | Thermal Expansion (m/m/0C) | Elastic Modulus (GPa) | Specific Heat 0-1000C (J/kg.K) | Electrical Resistivity (n.m) | |||
| at 1000C | at 5000C | 0-1000C | 0-3150C | 0-5380C | |||||
| 316L | 8000 | 16.2 | 21.5 | 17.2 | 17.8 | 18.4 | 193 | 500 | 720 |
Applications
ASTM A213 TP347 seamless stainless steel pipe is widely used in industries such as aviation, petrochemical, food, and paper. Applications include aircraft engine exhaust manifolds and branch pipes, turbine compressor hot gas ducts, and equipment and accessories operating under light loads and temperatures not exceeding 850°C.

GNEE is a stainless steel pipe manufacturer in China. We supply seamless ferritic and austenitic alloy steel boiler, superheater, and heat exchanger tubes conforming to ASTM A213 standards for a wide range of applications. In addition to 347/347H stainless steel, we also offer 304/304L, 316/316L, 321/321H, 904L, and duplex steel. We manufacture seamless tubes from stainless steel billets through cold drawing and cold rolling, followed by heat treatment, to custom specifications. For specialized applications, we can also provide U-bends and bright annealed finished tubes upon request.
Inspection & Test:
Chemistry composition,
Tensile test,
Hardeness test,
Flattening test,
Flaring test,
NDT,(Hydrostatic or Nondestructive Electric Test)
Surface inspection and dimension check.

Packaging and Marking:
Packaged in bales or laminated wooden crates, wrapped in plastic, and appropriately protected to ensure seaworthiness for transport, or as required.
Marking must comply with Specification A1016/A1016M. Marking must include information on whether the pipe is hot-finished or cold-finished, including but not limited to: standard, grade, size, heat number, and batch number.

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