ASTM A312 TP347H Tube
1. Standard: ASTM A213, ASME SA312
2. Size: 1/2''~48''
3. Thickness: SCH5~SCHXXS
4. Service: Cutting, Welding, Fabricated, Customized
ASTM A312 TP347H tube is specially stabilized with niobium and designed for elevated-temperature applications. In industries where continuous heat exposure is unavoidable, this alloy is frequently selected for piping systems, superheaters, heat exchangers, and pressure equipment. HT PIPE is a 347h stainless steel pipe supplier with 15+ export experience. Contact us for more information and quotes for free!
We offers ASTM A312 TP347H in a variety of forms, including:
- Bar
- Wire
- Sheet
- Plate
- Forgings
- Pipe fittings
- Flanges
- Seamless & Welded pipe
- Seamless Tube & Welded tube
- Weld Rod
TP347H Stainless Steel Pipes Specification
| Standard | ASTM A269, ASTM A213, ASTM A312, ASME SA269, ASME SA213, ASME SA312 |
| Grades | Grade 347H / UNS S34709 / 1.4961 Stainless steel |
| Type | Seamless / Welded / ERW / EFW / Cold Draw / Hot Finish / Cold Finish |
| Outer Diameter Size | Seamless - 1/2" NB TO 18" NB Welded / ERW- 1" NB TO 16" NB EFW - 8" NB TO 110" NB |
| Wall Thickness | Schedule 10 to Schedule 160 (3 mm to 100 mm Thickness) |
| Length | 01 Meter to 12.5 Meters, Single Random Length, Double Random Length And Customize Size. |
| Pipes Ends | Plain Ends / Beveled Ends |
| Delivery Conditions | As Rolled, Formed, Stress Relieved, Annealed, Hardened, Tempered, Cold Draw |
Chemical Composition of 347H Stainless Steel Pipe
| Element | Content |
|---|---|
| Chromium (Cr) | 17.0 – 19.0% |
| Nickel (Ni) | 9.0 – 13.0% |
| Carbon (C) | 0.04 – 0.10% |
| Niobium + Tantalum | Stabilized |
| Manganese | Max 2.0% |
| Silicon | Max 1.0% |
347H Seamless Pipe vs Welded Pipe
347H Seamless Pipe
Seamless pipes are manufactured without a welded seam and are often selected for:
- High-pressure systems
- Critical boiler applications
- Refinery piping
- Superheater tubing
Advantages include:
Higher pressure resistance
Better structural uniformity
Improved reliability under thermal stress
347H Welded Pipe
Welded pipes are produced from rolled stainless steel plates or coils and are commonly used where cost efficiency is important.
Typical applications:
- Low to medium pressure systems
- Structural industrial piping
- General process lines
For many industrial buyers, welded TP347H pipes offer a balance between performance and budget.
Industrial Applications of 347H Stainless Steel Pipes
Oil and Gas Industry
347H pipes are widely used in:
- Refinery transfer lines
- Offshore processing systems
- High-temperature piping networks
Power Plants
Thermal power stations frequently install TP347H boiler pipes because of their ability to withstand steam pressure and elevated temperatures.
Chemical Processing
Chemical facilities rely on 347H stainless steel pipes for transporting corrosive fluids in heated process environments.
Fertilizer Plants
Ammonia and urea production units often require heat-resistant stainless piping materials with long operational stability.
FAQ
Q: About ASTM A312 TP347H tube prices?
A: Prices from ranges $5 - $15 per kilogram, vary depending on size, wall thickness, supplier etc.
Q: How long does your delivery time take?
A: Delivery time is within 5-21 days
Q: Is There Sample Service?
A: Samples Are Provided Free Of Charge
Q: What Is The Minimum Order Quantity?
A: No Minimum Order Quantity
Q: How to pack the products?
A: The inner layer has a waterproof paper outer layer and is fixed with a fumigation wooden pallet.
Q: Exported Countries
A: Brazil, South Africa, Indonesia, India, Singapore, Malaysia, Iran, Russia, UAE, Chile, Laos, etc
Q: Can we visit your factory?
A: Of course, you are always welcome!
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