TP304L Stainless Steel Pipe Ss 321 Seamless/Welded DN80 Sch40 Pickling SUS316L 316ti Round Rectangle/Square No. 4 China Factory 304 Stainless Steel Pipe

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Product Description

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Basic Information

Model NO.
Stainless steel pipe
Technique
Cold Rolled
Material
Stainless Steel
Surface Treatment
Polished
Section Shape
Round
Ni Content
8-12%
Production Capacity
50000ton/Month
HS Code
721922

Applications: Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Food/Beverage/Dairy Products, Machinery Industry, Chemical Industry, Mining, Construction & Decoration.

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Product Description

Stainless steel tube is a high-performance metal piping product crafted from corrosion-resistant stainless steel alloys (Cr ≥10.5%, combined with Ni, Mo, Ti, etc.). Available in seamless and welded configurations, it complies with international standards including ASTM, JIS, GB, and EN.

Seamless Stainless Steel Tube: Manufactured via hot extrusion or cold drawing, offering superior structural integrity and high pressure resistance. Ideal for critical precision applications.

Welded Stainless Steel Tube: Formed by ERW/TIG welding, providing a cost-effective solution with high production efficiency for general industrial use.

  • Extreme Corrosion Resistance: Adapts to fresh water, saltwater, acids, and harsh industrial media.
  • High Strength: Excellent tensile strength and ductility for easy fabrication.
  • Hygienic Standards: Meets requirements for food and medical use, ensuring no toxic leaching.
  • Long Service Life: Durable with low maintenance requirements.
  • Aesthetic Finishes: Available in 2B, BA, Mirror, and Brushed finishes.
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Material Grades & Specifications

Grade Alloy Features Max Temp Typical Applications
304/304L Cr18-Ni8 ≤870ºC Food processing, water treatment, architectural handrails
316/316L Cr18-Ni12-Mo2 ≤870ºC Marine pipelines, chemical tanks, medical devices
321 Cr18-Ni9-Ti ≤900ºC High-temperature pipelines, furnace tubes
310S Cr25-Ni20 ≤1150ºC Industrial furnaces, heat exchangers
2205 (Duplex) Cr22-Ni5-Mo3 ≤315ºC Oil & gas pipelines, desalination plants
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Detailed Product Gallery

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Surface Finishes

Surface Finish 1
Surface Finish 2
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Packaging & Shipping

Standard export packaging: Water proof paper + Metal pallet + Angle bar protection. Custom packaging solutions are available for international transit safety.

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Quality Control & Standards

We adhere to the management principles of "quality first, customer first and credit-based". Our products meet multifarious demands through rigorous testing and international standard compliance.

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Certifications

Frequently Asked Questions

What is the difference between 304 and 316L stainless steel tubes?
316L contains molybdenum (Mo) for better resistance to saltwater, acids, and pitting corrosion; 304 is more economical for general use such as water pipelines and architectural projects.
Seamless vs. Welded stainless steel tube - Which is better?
Seamless tubes offer higher pressure resistance and precision for critical applications. Welded tubes are more cost-effective and available in larger outer diameter options for general use.
Are these stainless steel tubes magnetic?
Austenitic grades like 304 and 316L are typically non-magnetic. Ferritic (430) or Duplex (2205) grades may be slightly magnetic, but this does not negatively impact their performance.
Can I use your stainless steel tubes for drinking water?
Yes, 304 and 316L tubes comply with FDA/NSF standards. They are non-toxic and corrosion-resistant, making them perfectly safe for drinking water systems.
Do you offer custom sizes and surface finishes?
Absolutely. We customize outer diameters (6mm-1200mm), wall thickness (0.3mm-20mm), and offer finishes including 2B, BA, Mirror, and electrolytic polish based on project needs.
What quality certifications do your products have?
Our production follows ISO 9001 standards and is compliant with ASTM/JIS/EN. We provide Mill Test Reports (MTR) and support third-party inspections like SGS or BV.

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