ASTM A213 310S Stainless Steel Seamless Tubes Manufacturer
We, Zhejiang Xintongda Special Steel (XTD), are a leading manufacturer and global supplier of high-quality stainless steel 310S seamless tubes. This tube is an austenitic heat-resistant stainless steel. It contains approximately 25% chromium and 20% nickel. This provides excellent oxidation resistance for intermittent service up to 2010°F (1100°C). We produce this tube in compliance with ASTM A213, A269, A511, and EN 10216-5 standards. SS 310S tube is a low-carbon version of the standard 310 grade. It offers superior ease of fabrication while remaining less prone to embrittlement in service. The tube’s unique resistance to high-temperature applications and hot corrosion makes it a preferred choice for furnaces and heat exchangers. We hold multiple international certifications and have an annual supply capacity of 25,000 tons. We can supply these tubes within a week for stock orders. To get these high-quality tubes, choose us as your trusted stainless steel 310s seamless tubes supplier.
Our UNS S31008 tube meets the following 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

How is SS 310S Seamless Tube produced?
As an experienced 310S stainless steel tube manufacturer, our manufacturing process starts by heating solid billets. We then pierce the centre to make a hollow shell and use cold drawing or rolling to get the exact size. Lastly, we use solution annealing and pickling to ensure the UNS S31008 tube meets all the requirements for strength and finish. Refer to our production page to learn about our detailed manufacturing process.
What are the Characteristics of Stainless Steel 310S Seamless Tubes?
Stainless steel seamless 310s tubes have 3 main characteristics. These are: moderate strength at high temperature, oxidation resistance, resistance to hot corrosion.
- Moderate Strength at High Temperature: The AISI 310S stainless steel tube maintains its structural integrity and mechanical strength even when exposed to continuous high heat. This occurs because the high alloy content prevents the metal from softening or deforming under thermal stress.
- Oxidation Resistance: These stainless steel 310s tubes form a protective scale layer due to chromium that keeps oxygen from getting through and damaging the metal underneath. This feature allows the tubes to stay strong and resist scaling, even when they operate continuously at temperatures up to 2000°F.
- Resistance to Hot Corrosion: The SS 310S tube has a unique chemical composition which protects against corrosive gases like sulfur at elevated temperatures. This makes the tubes ideal for places where regular metals would normally be destroyed due to chemical combustion.
What is the Equivalent Standard for 310S Stainless Steel?
The equivalent standards of 310S tube include UNS S31008, DIN 1.4845 and JIS SUS310S. The table explains these equivalent standards more clearly.
| GRADE | UNS | GB | JIS | ISO | DIN/EN | GOST | |
| ISC | NEW | ||||||
| 310S | S31008 | S31008 | 06Cr25Ni20 | SUS310S | X8CrNi25-21 | 1.4845 | - |
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
Applications for Stainless Steel 310S Seamless Tube
Food Processing
Power Generation
Furnaces
Ore Processing/Steel Plants
Sintering/Cement Plants
Heat Exchangers & Boilers
Cryogenic Components
Fluidised Bed Furnaces
Thermal Processing
Petroleum Refining
Frequently Asked Questions
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What is the difference between SS 310S and 310 tube?The main difference between SS 310S and 310 tubes is the carbon content. SS 310S has a maximum of 0.08% carbon, which increases its weldability and resistance to carbide precipitation. SS 310, on the other hand, has a maximum carbon content of 0.25% for improved creep strength at high temperatures.
