304 SS LAW ASTM 554 Ø1”x1/16“( 25.4x1.587 mm) Stainless Steel Welded Pipe Bright Surface
| Material : |
AISI 201 / SUS304 / SS316(L) |
| Size: |
12.7MM,15.8MM,18.75MM,25.4MM,38.1MM,42.4MM,50.8MM,OR Customized |
| Finished: |
Satin/Mirror/Painting/Black/Gold/Customized |
| Application: |
Railing, Handrail, Stair, Balcony, Porch, Corridor, Deck,Home Decoration, Shopping Mall |
| Packaging: |
1pc/ blank lastic bag , 5-10 pcs/bundles, wrapped by woben bag by the end of two side. |
| Payment: |
T/T (30% Deposit), Or Negotiable |
Stainless Steel Tube: Seamless/Welded Corrosion-Resistant Tube for Industrial & Commercial Use
Keywords: stainless steel tube, 304 stainless steel tube, 316L stainless steel tube, seamless stainless steel tube, welded stainless steel tube, food grade stainless steel tube, high precision stainless steel tube, corrosion resistant stainless steel tube
Introduction: The Reliable Alloy Tube for Global Critical Applications
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 (hot-extruded/seamless drawn) and welded (ERW/TIG) configurations, it complies with international standards (ASTM, JIS, GB, EN) and delivers exceptional rust resistance, durability, and formability. From food processing pipelines to chemical plant systems, architectural handrails to automotive exhausts, stainless steel tube is the go-to choice for industries demanding long-term reliability in harsh or precision-required environments.
1. What Is a Stainless Steel Tube? Core Types & Key Advantages
Material Foundation: The chromium content forms a dense, self-healing oxide film on the surface, blocking corrosion from moisture, chemicals, and high temperatures-this is the "stainless" core of its performance.
Two Main Types:
Seamless Stainless Steel Tube: Manufactured via hot extrusion or cold drawing (no weld seams), offering superior structural integrity, high pressure resistance, and tight dimensional tolerance. Ideal for high-pressure, high-temperature, or critical precision applications (thickness: 0.5mm-20mm).
Welded Stainless Steel Tube: Formed by welding stainless steel strips (ERW/TIG welding), cost-effective, high production efficiency, suitable for general industrial and commercial use (thickness: 0.3mm-12mm).
Unmatched Advantages:
Extreme corrosion resistance (adapts to fresh water, saltwater, acids, alkalis, and harsh industrial media).
High tensile strength & ductility (easy to cut, bend, weld, and fabricate into complex shapes).
Hygienic & easy to clean (meets FDA/3A standards for food/medical use, no toxic leaching).
Long service life (low maintenance, no need for anti-corrosion coating).
Aesthetic versatility (matte, mirror, brushed surfaces for decorative or functional use).
Common Surface Finishes: 2B (matte, industrial standard), BA (mirror polish), No.4 (brushed), electrolytic polish, pickling passivation-customized for your use case.
2. Hot-Selling Stainless Steel Tube Grades: Specifications & Target Uses
| Grade |
Alloy Key Features |
Max Service Temp |
Core Advantages |
Typical Applications |
| 304/304L |
Cr18-Ni8, low carbon (304L) |
≤870ºC |
Cost-effective, general corrosion resistance, food-safe |
Food processing pipelines, architectural handrails, water treatment systems, kitchen equipment |
| 316/316L |
Cr18-Ni12-Mo2, low carbon (316L) |
≤870ºC |
Superior corrosion resistance (saltwater/chemicals), anti-pitting |
Marine pipelines, chemical tanks, medical devices, offshore platforms, pharmaceutical equipment |
| 321 |
Cr18-Ni9-Ti |
≤900ºC |
Heat-resistant, avoids intergranular corrosion |
High-temperature pipelines, furnace tubes, aerospace components, boiler systems |
| 310S |
Cr25-Ni20 |
≤1150ºC |
Ultra-high temperature resistance, oxidation-resistant |
Industrial furnaces, heat exchangers, high-temperature exhaust systems |
| 2205 (Duplex) |
Cr22-Ni5-Mo3 |
≤315ºC |
High strength + corrosion resistance (2x stronger than 304/316L) |
Oil & gas pipelines, chemical reactors, seawater desalination plants |
| 430 |
Cr17 (ferritic) |
≤815ºC |
Economical, good formability, magnetic |
Appliance tubes, decorative structures, non-critical industrial pipelines |
3. Key Technical Parameters (Customizable for Projects)
| Parameter |
Seamless Stainless Steel Tube |
Welded Stainless Steel Tube |
| Outer Diameter (OD) |
6mm - 325mm (custom up to 530mm) |
10mm - 630mm (custom up to 1200mm) |
| Wall Thickness (WT) |
0.5mm - 20mm (Schedule 5-160) |
0.3mm - 12mm (Schedule 5-80) |
| Tensile Strength |
480MPa - 750MPa (varies by grade) |
450MPa - 700MPa (varies by grade) |
| Yield Strength |
≥205MPa (≥450MPa for 2205) |
≥195MPa (≥440MPa for 2205) |
| Elongation (δ5) |
≥40% (≥25% for duplex grades) |
≥35% (≥25% for duplex grades) |
| Standards Compliance |
ASTM A213, A312, A480, JIS G3459, GB/T 14976 |
ASTM A312, A409, JIS G3448, GB/T 12771 |
| Certification |
ISO 9001, FDA, CE, 3A (food/medical), SGS/BV Inspection |
ISO 9001, FDA, CE, SGS/BV Inspection |
4. Core Application Industries: Where Stainless Steel Tube Excels
Food & Beverage: Processing pipelines, dairy machinery, brewing equipment, and food storage tanks (304/316L, FDA-compliant).
Chemical & Petrochemical: Corrosive medium pipelines, chemical storage tanks, reactor tubes, and acid/alkali transfer systems (316L/2205/310S).
Architecture & Construction: Handrails, balustrades, curtain wall supports, decorative tubes, and HVAC systems (304/430, 2B/BA/Brushed finishes).
Marine & Offshore: Ship hull piping, offshore platform pipelines, seawater cooling systems, and coastal structures (316L/2205).
Medical & Pharmaceutical: Surgical instrument components, cleanroom pipelines, and drug processing equipment (316L, electrolytic polish).
Automotive & Aerospace: Exhaust systems, fuel lines, and aerospace hydraulic tubes (304/321/310S).
Water Treatment: Drinking water pipelines, wastewater treatment systems, and desalination plants (304/316L).
5. Procurement Guide: How to Choose the Right Stainless Steel Tube
Select the Grade:
General use + food/Drinking water: 304/304L (cost-effective, corrosion-resistant).
Saltwater/chemicals/harsh environments: 316/316L (Mo-enhanced protection).
High temperature (≥900ºC): 321/310S (heat-stable alloys).
High strength + corrosion resistance: 2205 duplex (heavy-duty industrial use).
Budget-friendly non-critical use: 430 (ferritic stainless steel).
Choose Seamless vs. Welded:
High pressure/high temperature/critical applications: Seamless (no weld weak points).
General industrial/commercial use: Welded (cost-effective, large OD available).
Confirm Dimensions: Specify OD, WT, length (fixed 6m/12m or custom cut-to-length), and schedule (e.g., Schedule 40 for standard pressure).
Surface Finish: 2B (default for industrial pipelines), BA (mirror for decoration), electrolytic polish (medical/food), pickling passivation (corrosion protection).
Quality Requirements: Request mill test report (MTR) for chemical composition/mechanical properties; non-destructive testing (NDT: ultrasonic, eddy current) for high-pressure projects.
FAQ
s: Answers to Your Top Stainless Steel Tube Questions
Q: What's the difference between 304 and 316L stainless steel tubes?
A: 316L contains molybdenum (Mo) for better resistance to saltwater, acids, and pitting corrosion; 304 is more economical for general use (e.g., water pipelines, architecture).
Q: Seamless vs. welded stainless steel tube-Which is better?
A: Seamless = higher pressure resistance + precision (critical applications); welded = lower cost + larger OD options (general use).
Q: Are stainless steel tubes magnetic?A: 304/316L (austenitic) = non-magnetic; 430 (ferritic)/2205 (duplex) = slightly magnetic (no impact on performance).
Q: Can I use stainless steel tubes for drinking water?
A: Yes-304/316L tubes comply with FDA/NSF standards, non-toxic and corrosion-resistant, safe for drinking water.
Q: Do you offer custom sizes and finishes?
A: Absolutely-we customize OD (6mm-1200mm), WT (0.3mm-20mm), length, and finishes (2B/BA/electrolytic polish) to your project needs.
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304 SS LAW ASTM 554 Ø1”x1/16“( 25.4x1.587 mm) Stainless Steel Welded Pipe Bright Surface Images
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