ASTM A213 310H Stainless Steel Seamless Tube Manufacturer
We, Zhejiang Xintongda Special Steel (XTD), are a leading manufacturer in China and a global supplier of Stainless steel 310H seamless tube. This tube is a high-carbon austenitic stainless steel that contains around 25% chromium and up to 20% nickel. It is designed for superior high-temperature performance. We ensure that our SS 310H tubes conform to ASTM A213, A269, A511, and EN 10216 standards. Our SS 310H tubes have a controlled carbon content (0.04–0.10%) to improve creep resistance and high‑temperature strength. This ensures durability under extreme stress. These tubes also offer good resistance to oxidation and carburisation up to 1100°C. This makes them essential for a heat exchanger or boiler system where thermal stability is critical. We hold multiple international certifications. We maintain an annual supply capacity of 25,000 tons and have the ability to deliver in-stock products within a week. Our 310H Stainless steel tube is a preferred choice for industries demanding longevity and structural integrity in heat-intensive environments. To secure the most competitive pricing, contact us today.
Our tubes meet these specifications:
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Standard
ASTM A213
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OD Range
6.35-257 mm
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Thickness
0.89-12.7 mm
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Length
≤ 22 m
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Technical Data
Technical Data
How is the SS 310H Seamless Tube Produced?
Being a trusted 310H stainless steel tube manufacturer, we make our products starting with a high-quality solid billet. We heat this billet and pierce it to create a hollow shell. Then this hollow shell is cold-drawn or cold-rolled to achieve the exact dimensions and smooth finish required. Finally, we perform solution annealing and water quenching to ensure the UNS S31009 tube meets all strength and corrosion standards. To know more about our manufacturing process, click here.
What is the Equivalent Standard for 310H Stainless Steel?
Some equivalents for 310H include UNS S31009, EN 1.4841, and SUS310H. The table below explains these equivalent standards more clearly.
| GRADE | UNS | GB | JIS | ISO | DIN/EN | GOST | |
| ISC | NEW | ||||||
| 310H | S31009 | — | 20Cr25Ni20H | SUS310 (H) | X15CrNi25-21H | 1.4841 (H) | 20X25H20C2 |
100% Certified Testing & Documentation
- EN 10204 3.1 and EN 10204 3.2 Material Test Certificates (MTC)
- Raw Materials Certificate
- 100% PMI
- Heat Treatment Charts
- Third-Party Inspection Report
- Surface roughness and size measurement
- Manufacturer Test Certificate (Impact Testing, Flattening, Flare, Bend, Hardness, Intergranular, Pitting Corrosion, Grain size, ET, UT, HT)
- Laboratory Test Certificate from the Government-Approved Lab
Industries and Applications for Stainless Steel 310H Seamless Tube
Food Processing
Power Generation
Furnaces
Petrochemical Industry