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Boiler Superheater TP321H Seamless Stainless Steel Tube High Temperature Resistant
| Place of Origin | Jiangsu, China |
|---|---|
| Brand Name | HANTAI |
| Certification | ISO 9001:2015, EN 10204 3.1 |
| Model Number | TP321H-A213-630 |
| Minimum Order Quantity | 1 Ton |
| Price | USD 4000-6000 / Ton |
| Packaging Details | Seaworthy wooden case, end caps, anti rust paper, steel strip bundle |
| Delivery Time | 10-20 days for stock, 25-35 days for production |
| Payment Terms | T/T,L/C at sight,Western Union |
| Supply Ability | 1400 Tons per Month |
Product Details
| Product Name | Boiler Superheater High Temperature Seamless Stainless Steel Tube | Application | Boiler Superheater And Power Plant Steam Service |
|---|---|---|---|
| Material Grade | 321H / UNS S32109 / EN 1.4878 | Standard | ASTM A213 / ASME SA213 |
| Stabilizing Element | Titanium Stabilized Against Intergranular Corrosion | Surface Finish | Pickled And Annealed |
| Wall Thickness | 0.5 Mm - 30 Mm | Manufacturing Process | Cold Drawn Seamless |
| Highlight | Boiler Superheater TP321H Tube,High Temperature Seamless Tube,Power Plant Steel Pipe |
||
Product Description
Product Overview
This Boiler Superheater TP321H Seamless Stainless Steel Tube is engineered for the demanding high-temperature sections of utility and industrial boilers, where creep strength and oxidation resistance determine the working life of the unit. The 321H grade is stabilised with titanium, which ties up carbon and prevents sensitisation, so the steel retains its corrosion resistance even after prolonged exposure to temperatures between 500 °C and 800 °C. Because it is a seamless tube, there is no weld seam to crack under thermal cycling, making it well suited to superheater, reheater and main steam tube banks.
We supply the tube in outside diameters from 6 mm to 630 mm and wall thicknesses from 0.5 mm to 30 mm, in the pickled and annealed condition. The higher carbon content of the H grade delivers improved creep rupture strength compared with standard 321, allowing thinner walls and better heat transfer in boiler design. Each batch is eddy current tested and hydro tested, with the heat number, chemistry and mechanical properties recorded on the mill test certificate for full traceability.
Technical Specifications
| Parameter | Value |
|---|---|
| Material Grade | 321H / UNS S32109 / EN 1.4878 |
| Standard | ASTM A213 / ASME SA213 |
| Outer Diameter | 6 mm – 630 mm |
| Wall Thickness | 0.5 mm – 30 mm |
| Length | 6 m / 12 m or cut to length |
| Stabilizing Element | Titanium stabilized |
| Surface Finish | Pickled and annealed |
| Manufacturing Process | Cold drawn seamless |
Key Advantages
- Titanium stabilisation resists intergranular corrosion and sensitisation at high temperature.
- The H grade carbon level provides high creep rupture strength for superheater and steam service.
- Seamless body withstands thermal fatigue from repeated boiler start-up and shut-down cycles.
- Good oxidation resistance keeps scale thin so heat transfer stays efficient.
- Eddy current and hydro testing confirm reliable pressure tightness on every length.
- Full material traceability with heat number and mill test certificate.
Typical Applications
- Boiler superheater and reheater tubes
- Utility and industrial power plant steam lines
- Heat recovery steam generators
- Petrochemical high temperature piping
- Heat treatment and furnace equipment
Frequently Asked Questions
Q: What is the difference between TP321 and TP321H?
A: TP321H has a higher carbon content than standard TP321, which raises its creep rupture strength for high temperature service. Both grades are titanium stabilised against intergranular corrosion.
Q: What temperature range does this tube serve?
A: TP321H is typically used from 500 °C to 800 °C, making it suitable for superheater and reheater sections of boilers.
Q: Do you supply to ASTM A213?
A: Yes. The tube is manufactured to ASTM A213 and ASME SA213 as standard, and other standards can be produced on request.
Q: How can I obtain a quotation?
A: Please contact us with your required outside diameter, wall thickness and length, and we will provide a competitive price and delivery schedule.
Ordering & Support
Every shipment is backed by our experienced export team, who assist with material selection, documentation and logistics so that your procurement runs smoothly from enquiry to delivery. We welcome OEM and ODM orders and can supply trial quantities for evaluation. Please contact us with your drawing or specification for a quotation, free technical advice and the latest stock list for this corrosion resistant seamless stainless steel pipe range.
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