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Stainless Steel Pipe to Tube Fitting | Precision-Welded Industrial-Grade Joints
Stainless Steel Pipe to Tube Fitting | Precision-Welded Industrial-Grade Joints
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Product Detail Page: Stainless Steel Pipe to Tube Fitting | Precision-Welded Industrial-Grade Joints
Technical Specifications
| Category | Details | Standards |
|---|---|---|
| Material Grades | stainless steel 304 pipes & tubes, 316L, 904L, Duplex 2205 | ASTM A312, A358, EN 10217 |
| Size Range | stainless steel pipe to tube fitting: 1/8"–48" (DN6–DN1200) | ASME B36.10, DIN 2462 |
| Wall Thickness | 0.5mm–60mm (SCH 5S to XXS) | ISO 1127, ASTM A999 |
| Hardness (HRB) | 70–90 (Cold-Drawn), ≤187HB (Hot-Rolled) | ISO 6506, ASTM E18 |
| Surface Finish | Mill Finish, Electro-Polished, 180#–600# Polished, Pickled & Passivated | ASTM A480, EN 10088-2 |
| Connection Types | Welded, Flanged, Threaded (NPT, BSP), Grooved | ASME B16.5, B16.9, B16.25 |
| Pressure Rating | 150–2500 PSI (Standard), Custom High-Pressure Designs | API 5L, EN 13480-3 |
Mechanical & Physical Properties
| Property | Value |
|---|---|
| Tensile Strength | ≥515 MPa (304), ≥550 MPa (316L), ≥690 MPa (Duplex 2205) |
| Yield Strength | ≥205 MPa (304), ≥290 MPa (316L), ≥450 MPa (Duplex 2205) |
| Elongation | ≥40% (304), ≥35% (316L), ≥25% (Duplex 2205) |
| Corrosion Resistance | PREN ≥35 (316L), Chloride Stress Corrosion Cracking (SCC) Resistance |
| Operating Temp. | -200°C to 870°C (304), -200°C to 925°C (316L) |
Key Features & Advantages
Tensile & Bend Strength
Our stainless steel pipe to tube fitting solutions prioritize structural integrity. stainless steel 304 pipes & tubes achieve tensile strengths ≥515 MPa through cold-drawn processing, which aligns the grain structure for enhanced load distribution. For high-pressure systems, reliable stainless steel pipes and tubes in 316L grades utilize molybdenum (2–3%) to resist pitting under chloride exposure.
Identification & Traceability
Each fitting is laser-etched with:
- Grade Markings (e.g., UNS S30400, S31603)
- Heat Number & Batch Code
- Compliance Standards (e.g., ASTM A312 TP304)
Third-party certifications (TUV, PED) and Mill Test Reports (MTRs) ensure full traceability.
Weight Calculation
Formula:
Weight (kg/m) = (OD – WT) × WT × 0.02491
Example: A 2" (DN50) SCH 40S stainless steel pipe to tube fitting (OD: 60.3mm, WT: 3.91mm) weighs 5.68 kg/m[(60.3–3.91) × 3.91 × 0.02491].
Corrosion Mechanisms
Although reliable stainless steel pipes and tubes resist rust, localized corrosion may occur due to:
- Chloride Exposure: 304 is prone to pitting in seawater; 316L’s Mo content mitigates this risk.
- Galvanic Coupling: Contact with carbon steel in humid environments accelerates oxidation. Use dielectric unions for isolation.
- Stress Corrosion Cracking (SCC): High chloride + tensile stress (>80°C) can crack 304. Solution-annealed 316L or Duplex 2205 fittings are recommended.
Applications
- Chemical Processing: Seamless stainless steel pipe to tube fitting for acid/alkali transfer (H2SO4, NaOH).
- Pharmaceuticals: Electropolished stainless steel 304 pipes & tubes compliant with 3-A Sanitary Standards.
- Oil & Gas: High-pressure welded fittings rated for 2500 PSI in offshore drilling systems.
Why Choose Our Stainless Steel?
- Premium Material Sourcing: Our reliable stainless steel pipes and tubes use prime-grade billets from TISCO and Outokumpu, ensuring Cr/Ni ratios exceed ASTM minima (18% Cr, 10% Ni for 304).
- Advanced Welding Techniques: Automated TIG welding with argon shielding guarantees porosity-free joints, achieving 98% weld efficiency.
- Global Compliance: Dual-certified to EN 10217 and ASME B31.3 for international projects.
- Sustainable Manufacturing: 92% recycled content and ISO 14001-certified production.
- Lifetime Support: Free technical consultations on load calculations, corrosion prevention, and custom machining.
