ASTM A376 TP347H Seamless Stainless Steel Pipe
Certification：ISO, RoHS, IBR, AISI, ASTM, GB, EN, DIN, JIS
Shape：round
Technique：Cold Rolled
Surface Treatment：Sanded /Mirror/Hairline Brushed
Thickness：0.3-30mm
out Diameter：8-219mm
Length：5.8/6m or Custom
Stock：in Stock
Sample：Available
Transport Package：Standard Sea-Worthy Packing
TP347H seamless pipe supplier Manufacturer
If you are looking for high-performance seamless stainless steel pipes for high-temperature and high-pressure applications, ASTM A376 TP347H is an ideal choice. GNEE offers premium-quality ASTM A376 TP347H seamless stainless steel pipes, complete with solution annealing (1100°C water quenching) and eddy current testing (100% pipe body inspection). The material complies with ASTM A376 / ASME SA376 standards and is supplied with EN 10204 3.1 mill test certificates and third-party inspection reports. It is particularly suitable for boiler tubing, superheaters, heat exchangers, and furnace components in the petrochemical and power generation industries.
Advantages
ASTM A376 TP347H seamless pipe is a niobium stabilized stainless steel that meets ASTM A376/ASME SA376 standards. It can maintain long-term reliable performance at temperatures up to 870°C (1600°F). Its creep strength and stress rupture strength under high-pressure steam conditions are better than TP304H and TP316H. The seamless manufacturing process ensures structural integrity without welding defects. It is widely used in critical pipeline applications under high temperature, high pressure and severe corrosive environments.
In addition, GNEE also provides surface treatment: pickling treatment can deeply remove the oxide scale (in accordance with ASTM A380 standard) and is suitable for chemical and high-temperature pipelines; bright annealing can eliminate stress while maintaining Ra≤1.6μm finish through 1050-1100℃ temperature control and inert gas protection, which is suitable for precision instrument pipelines.
ASTM A376 Seamless Pipe in Stock
347H stainless steel pipe price per kg
The price of ASTM A376 TP347H stainless steel pipe mainly depends on raw material costs, pipe dimensions, processing requirements, and order quantity. If you have any questions, you can contact GNEE in time to answer you!
specification
| Standard | ASTM A376 |
|---|---|
| Stainless Steel | 304, 316, 321, 347, 347H |
| Pipe Type | Seamless Pipe |
| Finishes | Annealed pickling, bright annealing |
| Outside Diameter | 1/8 Inch To 30 Inch, NPS |
| Thickness | Sch 5, Sch 5S, Sch 10S, Sch 40S, Sch 80S, Sch 160 |
| Application | high-temperature central-station service |
ASME SA376 TP347H pipe Chemical Analysis
| Element | 347 | 347H |
|---|---|---|
| Chromium | 17.00 min.-19.00 max. | 17.00 min.-19.00 max. |
| Nickel | 9.00 min.-13.00 max. | 9.00 min.-13.00 max. |
| Carbon | 0.08 | 0.04 min.-0.10 max. |
| Manganese | 2.00 | 2.00 |
| Phosphorus | 0.045 | 0.045 |
| Sulfur | 0.03 | 0.03 |
| Silicon | 0.75 | 0.75 |
| Columbium & Tantalum | 10 x (C + N) min.-1.00 max. | 8 x (C + N) min.-1.00 max. |
| Iron | Balance | Balance |
TP347H stainless steel pipe Mechanical Properties
| Yield Strength 0.2% Offset |
Ultimate Tensile Strength |
Elongation in 2 in. |
Hardness | ||
|---|---|---|---|---|---|
| psi (min.) | (MPa) | psi (min.) | (MPa) | % (min.) | (max.) |
| 30,000 | 205 | 75,000 | 515 | 40 | 201 Brinell |
ASTM A376 TP347H Seamless Pipe Physical Properties
| Properties | Metric | Imperial |
| Density | 7.7 – 8.03 g/cm3 | 0.278 – 0.290 lb/in³ |
Whether you need seamless boiler tubes for high-pressure systems or corrosion-resistant pipes for petrochemical applications, GNEE delivers reliable ASTM A376 TP347H solutions tailored to your project requirements.
✅ Complete traceability and EN 10204 3.1 / 3.2 mill test certificates
✅ In-house services: precision cutting, end beveling, heat treatment, ultrasonic testing
✅ Export-grade packaging: wooden cases, steel frame bundles, plastic end caps
✅ Competitive factory pricing and global logistics support
✅ Stock availability for quick delivery
inspection
ASTM A376 TP347H boiler tube supplier
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