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ASTM A213 Stainless Steel 310MoLN Seamless Tubes Manufacturer in China

We, Zhejiang Xintongda Special Steel (XTD), are a reliable manufacturer in China of stainless steel 310MoLN tubes for use in urea plants and various industries worldwide. The stainless steel 310MoLN tube, an austenitic stainless steel tube, is produced from a modified 310 alloy consisting of 24–26% chromium, 21–23% nickel, 2–3% molybdenum, and a controlled nitrogen content of 0.15–0.25%. Our products are produced in accordance with the ASTM A213 specification. ASTM A213 TP 310MoLN seamless tubes outperform standard grades by offering enhanced strength, oxidation, and corrosion resistance at elevated temperatures. This tube can withstand temperatures up to 1150°C and exhibits reliable performance in challenging urea carbamate environments. Apart from urea plants, it is used in fertiliser, chemical processing, cement, and power generation industries, with every tube passing strict quality checks before delivery. As an ISO-certified company with four decades of experience, we maintain an annual stock of 25000 tons. We deliver in-stock products with a lead time of one week and production orders in 15-60 days.

For competitive pricing, ready stock, and fast delivery of stainless steel 310MoLN seamless tubes, contact Zhejiang Xintongda Special Steel (XTD), a trusted 310MoLN tube manufacturer and supplier.

  • Standard Icon Standard ASTM A213
  • Range Icon OD Range 6.35-257 mm
  • Thickness Icon Thickness 0.89-12.7 mm
  • Length Icon Length ≤ 22 m
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stainless steel 310 moln tube

Manufacturing Method of Stainless Steel 310MoLN Seamless Tube

We begin the process by heating a high-quality billet for hot piercing to form a hollow shell. It is then followed by cold drawing and a solution annealing process to refine the tube grain structure. We conduct final straightening and surface refining to ensure that each 310MoLN stainless tube meets the exact tolerances necessary for high-pressure urea applications. To know more, refer to our detailed manufacturing process page.

Features of 310MoLN Tube

Stainless Steel 310MoLN Tube delivers 3 key qualities that define the performance in industrial environments.

  • Improved corrosion resistance: This grade delivers strong aqueous corrosion resistance due to high chromium content (24-26%), molybdenum (2-3%), and nitrogen content (0.15-0.25%). These elements form a stable protective layer that survives the aggressive urea carbamate environments found in chemical strippers.
  • Resistance to oxidation: 310MoLN SS tubes are resistant to scaling and surface degradation up to 1150°C due to the presence of a protective chromium oxide layer. This alloy prevents scale formation and surface degradation during prolonged thermal cycles in power and energy plants.
  • High-temperature strength: The 310MoLN Stainless tube maintains its structural integrity when heated, as the high nitrogen concentration stabilises the austenitic microstructure against mechanical deformation. This prevents the tube from sagging or bursting when operating under the extreme pressures of a high-pressure stripper.

310MoLN Stainless Steel Equivalent Standard

Our 310MoLN stainless tube meets the key global grades, such as UNS S31050, European designation 1.4466, and EN/Werkstoff Nr.: 1.4466, X1CrNiMoN25-22-2. The other grades are listed below.

GRADE UNS GB JIS ISO DIN/EN GOST
ISC NEW
310MoLN S31050 S31053 022Cr25Ni20Mo2N - X1CrNiMoN25-22-2 1.4466 -

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 & Applications of SS 310MoLN Seamless Tube

The SS 310MoLN seamless tube provides exceptional durability across a diverse range of specialized industrial applications. Our tubes are used in 8 specific industries that are mentioned below:

Urea Plants

Chemical Processing

Mineral Equipment and Cement Production

High-Temperature Applications

Thermal Processing

Power & Energy

Oil & Gas

Petrochemical Industry

Urea Plants

Urea Plants

SS 310MoLN seamless tube is extensively used in urea synthesis and high-pressure carbamate circuits where ammonia and elevated temperatures are present. The alloy offers outstanding resistance to ammonium carbamate corrosion and maintains stability after welding to ensure a long service life.
Chemical Processing

Chemical Processing

In chemical processing plants, SS 310MoLN tubes are used in reactors, heat exchangers, and acid handling systems. Its high chromium, molybdenum, and nitrogen content enables it to withstand oxidising agents and prevent specific corrosion even at high-temperature operations.
Mineral Equipment and Cement Production

Mineral Equipment and Cement Production

SS 310MoLN seamless tube is applied in kilns, preheaters, and hot gas ducts exposed to extreme heat and abrasive dust. The material resists oxidation, scaling, and thermal degradation, making it suitable for continuous high-temperature operation.
High-Temperature Applications

High-Temperature Applications

For furnace tubes, radiant heaters, and heat treatment equipment, SS 310MoLN delivers excellent oxidation resistance and creep strength. It retains mechanical stability during prolonged exposure to temperatures above 1000°C.
Thermal Processing

Thermal Processing

SS 310MoLN tube is commonly specified for thermal processing systems, such as annealing and sintering furnaces. The material exhibits consistent performance under repeated thermal cycling while preserving its structural and surface integrity.
Power & Energy

Power & Energy

In power generation and energy systems, SS 310MoLN seamless tube is mostly used in superheaters. This tube withstands high steam temperatures, pressure and combustion gases with minimal material deterioration.
Oil & Gas

Oil & Gas

This tube is used in oil and gas processing, as it is commonly used in high-temperature process lines and refinery heaters. In harsh operating conditions, the material can withstand sulphur-containing environments, oxidation, and pressure changes.
Petrochemical Industry

Petrochemical Industry

TP310MoLN seamless tubes are widely used in the petrochemical industry due to their high temperature strength and resistance to corrosion and oxidation. These tubes perform well in harsh chemical and high-pressure environments.
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