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Stainless Steel Pipe | High-Performance Welded & Seamless Solutions 🔥

Stainless Steel Pipe | High-Performance Welded & Seamless Solutions 🔥

$1.70 SGD
$1.70 SGD
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High-Performance Welded & Seamless Stainless Steel Pipe Solutions
🔥 Trusted by Global Industries for Durability and Precision

Product Specifications

ASTM Standards: stainless steel pipe grades include 201, 202, 304, 304L, 316, 316L, 309S, 310S, 410, 430, and duplex alloys.

 

Property Details
Outer Diameter (OD) 6 mm – 860 mm (seamless), 10 mm – 219.1 mm (welded)
Wall Thickness 0.5 mm – 60 mm (seamless), Sch 5 – Sch 160 (welded)
Length Standard: 6 meters; Customizable up to 12 meters
Surface Finish No.1, No.4, No.8 Mirror, 2B, Pickled, Sandblasted, Electropolished
Certifications ISO 9001, ASTM A312/A269/A213, ASME SA312, DIN 2462, JIS 3459

Hardness & Mechanical Properties

stainless steel pipe hardness varies by grade and manufacturing process. Key metrics include:

Hardness Type Test Method Typical Values Applications
Rockwell (HRC) ASTM E18 20–30 HRC (304/316L) General-purpose stainless steel pipe
Brinell (HB) ASTM E10 150–200 HB (430/410) High-stress industrial environments
Vickers (HV) ASTM E384 200–250 HV (duplex grades) Marine and chemical processing

Tensile Strength:

  • 304/316L: 515–860 MPa
  • Duplex Alloys: 620–930 MPa

Yield Strength:

  • 304/316L: 205–310 MPa
  • 410 Martensitic: 345 MPa

Size & Dimensional Tolerance

stainless steel pipe fittings and stainless steel exhaust pipe are precision-engineered for seamless integration:

Parameter Tolerance
OD Tolerance ±0.1 mm (seamless), ±0.2 mm (welded)
Wall Thickness ±10% (standard), ±5% (custom orders)
Straightness ≤1.5 mm/meter

Common Sizes:

  • Round Pipe: 1/4" to 24" (DN6–DN600)
  • Square/Rectangular: 10x20 mm – 50x100 mm
  • Exhaust Pipe: 2"–6" OD with 1.5–3 mm wall thickness

Manufacturing Process

Technique Description
Seamless Pipe Produced via hot extrusion or cold drawing; no welds for high-pressure use.
Welded Pipe ERW (Electric Resistance Welding) or TIG welding; cost-effective for low-pressure systems.
Surface Treatment Pickling, passivation, or electropolishing to enhance corrosion resistance.

Key Performance Attributes

  1. Corrosion Resistance:
    Chromium (10.5%–30%) forms a self-healing oxide layer, preventing rust in harsh environments like marine or chemical plants.

    stainless steel exhaust pipe grades (304/316L) resist oxidation up to 870°C

  2. Bending Strength:
    Seamless pipes withstand 1.5–2x higher bending stress than welded variants due to uniform grain structure

  3. Weight Calculation:
    Formula for stainless steel pipe:

    Example: 114.3 mm OD x 6 mm wall = 16.2 kg/m

  4. Identification Marking:
    Laser-etched with ASTM grade, OD, wall thickness, heat number, and manufacturer logo.

  5. Rust Causes:

    • Galvanic Corrosion: Contact with carbon steel or iron triggers electrochemical degradation.
    • Chloride Exposure: Coastal or de-icing salt environments degrade passive layers in 304/316L.
    • Mechanical Damage: Scratches or abrasions expose raw metal to oxygen and moisture.

Why Choose Our Stainless Steel Solutions?

✅ Factory-Direct Supply: Eliminate middlemen for competitive pricing.
✅ Global Certifications: Compliant with ASTM, ASME, DIN, and ISO standards.
✅ Customization: Tailored stainless steel pipe fittings and stainless steel exhaust pipe dimensions, thicknesses, and finishes.
✅ Fast Logistics: Proximity to Shanghai Port ensures 7–14 day global delivery.
✅ Quality Assurance: Third-party inspections and 10-year performance warranty.

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