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Stainless Steel Pipe
1.Product Overview
Stainless steel pipes (SS pipes) are high-performance tubular products made from corrosion-resistant steel alloys. They are widely used in industries requiring durability, hygiene, and resistance to extreme environments.
Key Features:
✔ Corrosion Resistance – Excellent performance in acidic, alkaline, and chloride-rich environments
✔ High Strength – Withstands high pressure and mechanical stress
✔ Hygienic & Easy to Clean – Ideal for food, pharmaceutical, and medical applications
✔ Temperature Resistance – Suitable for cryogenic to high-temperature applications
✔ Aesthetic Appeal – Polished finishes available for architectural use
2. Material Grades & Standards
|
Grade |
Equivalent (EN/AISI) |
Key Properties |
Common Applications |
|
304 |
1.4301 (EN) / AISI 304 |
Excellent formability, weldability |
Food processing, chemical tanks |
|
304L |
1.4307 / AISI 304L |
Low carbon, better weldability |
Petrochemical, pharmaceuticals |
|
316 |
1.4401 / AISI 316 |
Superior chloride resistance |
Marine, coastal, medical |
|
316L |
1.4404 / AISI 316L |
Low carbon, high corrosion resistance |
Offshore, desalination plants |
|
321 |
1.4541 / AISI 321 |
Titanium-stabilized, heat-resistant |
High-temperature exhaust systems |
|
Duplex 2205 |
1.4462 |
High strength, chloride resistance |
Oil & gas, chemical processing |
Standards Compliance:
ASTM A312/A358/A269 (Seamless & Welded)
EN 10216-5 / DIN 17456 (European Standards)
JIS G3459 / GB/T 12771 (Asian Standards)
3. Manufacturing Processes
(1) Seamless Stainless Steel Pipes
Process: Hot extrusion or cold drawing
Advantages: No weld seams, higher pressure resistance
Applications: High-pressure fluid transport, oil & gas
(2) Welded Stainless Steel Pipes
Process: ERW (Electric Resistance Welding), TIG (Argon Arc Welding), Laser Welding
Advantages: Cost-effective, available in large diameters
Applications: Structural, architectural, low-pressure systems
4. Technical Specifications
|
Parameter |
Specifications |
|
Outer Diameter (OD) |
6mm – 2000mm (customizable) |
|
Wall Thickness |
0.5mm – 50mm |
|
Length |
1m – 12m (standard), custom lengths available |
|
Surface Finish |
Annealed, Pickled, Polished (180#-1000#), Brushed, Bead Blasted |
|
Pressure Rating |
Up to 1000+ PSI (varies by grade & thickness) |
|
Temperature Range |
-200°C to +900°C (grade-dependent) |
5. Applications by Industry
✔ Oil & Gas – Downhole tubing, pipelines, refinery equipment
✔ Chemical Processing – Acid storage, heat exchangers
✔ Food & Beverage – Sanitary tubing, dairy processing
✔ Pharmaceutical – CIP/SIP systems, bioreactors
✔ Architecture – Handrails, structural supports, decorative facades
✔ Automotive – Exhaust systems, fuel lines
✔ Water Treatment – Desalination, wastewater management
6. Advantages vs. Alternative Pipes
|
Feature |
Stainless Steel |
Carbon Steel |
PVC |
Copper |
|
Corrosion Resistance |
★★★★★ |
★★☆ |
★★★☆ |
★★★★ |
|
Strength |
★★★★☆ |
★★★★☆ |
★★☆ |
★★★☆ |
|
Hygiene |
★★★★★ |
★★★☆ |
★★★★ |
★★★★★ |
|
Temperature Range |
-200°C to +900°C |
-50°C to +400°C |
0°C to +60°C |
-200°C to +250°C |
|
Lifespan |
50+ years |
10-30 years |
10-25 years |
20-50 years |
7. Quality Control & Testing
Chemical Composition: Spectrometer testing (ASTM E1086)
Mechanical Properties: Tensile, hardness, impact tests (ASTM A370)
Corrosion Testing: Salt spray (ASTM B117), intergranular corrosion (ASTM A262)
Non-Destructive Testing (NDT): Ultrasonic (UT), Eddy Current (ET), Hydrostatic
8. Packaging & Delivery
Standard Packaging: Plastic caps + waterproof wrapping
Bundling: Wooden crates for export (Fumigation-certified)
MOQ: 1 ton (custom orders accepted)
Lead Time: 7-30 days (depending on specifications)
9.Why Choose Our Stainless Steel Pipes?
✅ Mill Direct Pricing – No middlemen, competitive rates
✅ Full Certification – MTC, EN 10204 3.1, ISO compliance
✅ Custom Fabrication – Cutting, bending, threading, polishing services
✅ Global Logistics – Sea/air freight support
Contact us for quotes, material test reports (MTRs), or technical consultation!
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