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321 Stainless Steel Pipes
We supply 321 stainless steel pipes, a titanium-stabilized austenitic stainless steel tubing designed to resist intergranular corrosion in welded and high-temperature applications. With added titanium forming stable carbides, this grade prevents carbide precipitation in the sensitization temperature range, making it ideal for piping systems exposed to elevated temperatures and corrosive media.
+86 153 7635 6088
+86 153 7635 6088
info@jtl-steel.com
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  • Intergranular Corrosion Resistance: Titanium stabilization effectively prevents carbide precipitation at 450–850°C, maintaining corrosion resistance in welded and heat-affected zones.

  • High-Temperature Performance: Suitable for continuous service up to 800°C, with good oxidation and scaling resistance in air and combustion atmospheres.

  • Excellent Formability and Weldability: Maintains the workability of austenitic stainless steel, supporting bending, flanging, and standard welding methods.

  • Versatile Corrosion Resistance: Performs well in acidic, alkaline, and chloride-containing environments, including organic acids and mild industrial media.

Applications
Ideal for heat exchanger tubes, furnace piping, boiler systems, aircraft exhaust manifolds, chemical processing equipment, and welded high-temperature structural components.

We provide pipes in various diameters, wall thicknesses, and lengths, with options for cutting, beveling, threading, polishing, and hydrostatic testing. Full material certification compliant with ASTM A312, EN 10216-5, JIS G3459, and related standards is included to ensure quality and traceability.


Product name321 Stainless Steel Pipes
Production technologyCold rolled or hot rolled
Steel Grade321
StandardAiSi, ASTM, BS, DIN, GB, JIS , etc.
Length1000~12000MM,Customizable
Wall Thickness1mm-150mm,customizable
Outer Diameter0.5mm-2500mm,customizable
Tolerance±1%
SampleProvided Within 3 Days
ApplicationIndustry,Construction, Ship Components
Processing ServiceBending, Welding, Decoiling, Punching, Cutting
SurfaceBA/2B/#1/#3/#4/8K/HL/2D/1D/etc. Customizable
ShapeRound or Rectangle or Heterosexual steel pipe.Customizable


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详情标题1-产品详情


Our stainless steel pipes, crafted from premium grades like 304, 316L, 321, and 2205 duplex, deliver exceptional corrosion resistance, high-temperature stability, and structural integrity. Available via two core manufacturing processes: Seamless (SMLS) pipes (hot-rolled/cold-drawn from solid billets) for high-pressure scenarios like oil/gas pipelines and boilers; and Welded (ERW/TIG) pipes (formed from steel strips then welded) for cost-efficient, medium-pressure applications such as water supply, HVAC, and food processing. Offered in standard diameters with surface finishes (polished, pickled, brushed), each batch comes with MTC, complying with ASTM, ASME, and DIN standards.


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详情标题2-生产线


Production starts with high-purity stainless steel billets (for seamless) or strips (for welded). Seamless pipes undergo heating, piercing to form hollow shells, then multi-pass rolling/drawing for dimensional accuracy. Welded pipes go through strip uncoiling, forming into tubes, and ERW/TIG welding (with post-weld annealing to eliminate stress). Both lines feature online thickness/diameter monitoring and non-destructive testing (NDT). Full digital control ensures every pipe meets strict standards for performance and consistency.


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详情标题3-检测


In order to ensure product quality, we will arrange professional personnel to check product quality, packaging, weight, hardness, etc., according to customer requirements of product specifications, looking for high-quality and cheap cooperative factories in China, to provide customers with one-stop procurement services and quality assurance.


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详情标题4-发货


Excellent packaging: waterproof paper and plastic film + iron cover + at least three strapping straps + strapping straps fixed on iron or wood pallets can effectively protect products from corrosion and various climate changes during transportation. Generally speaking, we ship from Shanghai, Tianjin, Qingdao and Ningbo ports. We have worked with many experienced shipping companies for a long time to find the most suitable mode of transportation for you.


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