201 202 Stainless Steel Pipe
Standard: ASTM, AISI, DIN, EN, GB, JIS
Dimensions: 3mm-800mm
Grade: 200 series ,300 series ,400 series
Place of Origin: Shandong, China (Mainland)
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Product NameStainless steel pipe
StandardASTM AISI DIN, EN, GB, JIS
Steel Grade200 Series: 201,202
300 Series: 301,304,304L,316,316L,316Ti,317L,321,309s,310s
400 Series: 409L,410,410s,420j1,420j2,430,444,441,436
Duplex Steel: 904L,2205,2507,2101,2520,2304
Outer Diameter6-2500mm(as required)
Thickness0.3mm-150mm (as required)
Length2000mm/2500mm/3000mm/6000mm/12000mm(as required)
TechniqueSeamless/Welded
SurfaceNo.1 2B BA 6K 8K Mirror No.4 HL
Tolerance±1%
Price TermsFOB,CFR,CIF

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CategorySeamless Stainless Steel PipeWelded Stainless Steel Pipe
DefinitionManufactured by piercing a solid round billet, followed by processes such as hot rolling, cold rolling, or cold drawing. The pipe has no weld seam throughout.Formed by rolling and shaping stainless steel plates or strips into a tube, and then joining the edges through welding.
Process Subdivisions1. Hot-rolled seamless pipe2. Cold-rolled / Cold-drawn seamless pipe (higher precision)1. By welding process:
- Longitudinally welded pipe:
• ERW (High-Frequency Resistance Welded Pipe)
• SAW (Submerged Arc Welded Pipe)
- Spiral welded pipe2. By weld seam treatment:
- As-welded pipe
- Weld seam ground/polished pipe
- Cold-drawn/cold-rolled welded pipe (performance close to seamless pipe)
Common ApplicationsHigh-temperature & high-pressure fluid conveyance (e.g., boiler tubes, heat exchanger tubes), hydraulic/pneumatic systems, critical mechanical structural components.Low-pressure fluid conveyance (water, gas), decorative uses, guardrails, furniture, general mechanical structural components


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Chemical composition standards

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Stainless Steel Pipe Classification by Application

Application CategoryKey RequirementsPreferred Process / Pipe TypeCommon Material GradesTypical Applications
Fluid Conveyance PipesHigh pressure-bearing capacity.Seamless pipes or high-quality welded pipes.304, 316, etc. (selected based on the medium).Transporting liquids and gases in industrial and municipal systems.
Structural PipesStrength and aesthetics.Mostly square or rectangular welded pipes.Typically 304.Building frameworks, guardrails, handrails, furniture frames.
Mechanical & Structural TubesHigh dimensional precision and good surface finish.Cold-drawn (rolled) seamless tubes or precision welded tubes.304, 304L, 316, 316L, etc.Shafts, cylinders, bearings, and other precision mechanical components.
Heat Exchanger / Boiler TubesResistance to high temperature, high pressure, and corrosion.Usually small-diameter, thin-walled seamless tubes.304, 316, 321, etc.Heat exchangers, condensers, superheater tubes, boiler tubes.
Sanitary / Hygienic TubesHighly polished inner surface (e.g., Electropolished), sterile, easy to clean.Bright Annealed (BA) tubing or polished pipes (often seamless or welded with treated seam).Primarily 316L.Food & beverage processing, pharmaceutical, biotechnology piping systems.
Decorative PipesEmphasis on appearance.Mostly welded thin-walled pipes.201, 304.Interior design elements, decorative trims, architectural features, signage. Surface finishes: PVD coating (titanium gold, black), brushed, etc.


Product Details

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Shandong Zhonglian Yongsheng Special Steel Co., Ltd. is a steel production enterprise that has been engaged in steel production, processing and sales for many years. Its main products include stainless steel series, carbon steel, galvanized steel and other profile products. It can also provide other metal products according to customer needs, with an annual export volume of about 1 million tons. It has five finishing production lines, three hot-dip galvanizing production lines, and two color coating production lines. It adopts advanced automatic width control system (AWC), automatic thickness control system (AGC), bending roll system, work roll guide roll system and other effective measures to ensure product quality. Its products are exported to more than 30 countries and regions including the United States, Canada, Spain, Russia, Iran, Saudi Arabia, Morocco, India, Pakistan, Malaysia, Singapore, Australia, New Zealand, etc. "Punctuality, integrity, and humanized service" have always been the development principles that the company and all employees have always adhered to.

Certificate

  • 微信图片_2025-07-25_175515_396
  • 微信图片_2025-07-25_175510_390
  • 微信图片_2025-07-25_175519_269
  • 微信图片_2025-07-25_175522_605
  • 微信图片_2025-07-25_175448_750

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