High-Strength Stainless Steel 90 Degree Elbow | Durable Design

Product Detail Page: High-Strength Stainless Steel 90 Degree Elbow | Durable Design

Technical Specifications

Mechanical Properties

Tensile Strength

Our high-strength stainless steel elbows deliver exceptional tensile strength:

• Grade 304: ≥520 MPa (annealed) / ≥860 MPa (cold-worked)
• Grade 316L: ≥485 MPa (annealed) / ≥750 MPa (cold-worked)
  These values exceed industry standards, ensuring resistance to deformation in high-pressure environments such as oil refineries, chemical plants, and nuclear reactors.

Bend Strength

The seamless or welded design enhances bend strength (≥225 MPa for Grade 304) and minimizes turbulence in fluid flow. Rigorous hydrostatic testing at 1.5× rated pressure guarantees leak-proof performance, even under cyclic stress in applications like LNG transport and HVAC systems.

Identification & Marking

Each elbow is laser-etched or stamped with traceable identifiers:

• Material Grade (e.g., 316L)
• Size (NPS and DN)
• Pressure Class (e.g., 3500#)
• Heat Number (for material traceability via mill certificates)
• Certification Marks (ASME, ISO, UKCA)
  This system aligns with global quality protocols and simplifies compliance audits.

Weight Calculation & Charts

The stainless steel elbow weight can be calculated using the formula:
Weight (kg) = $(OD-WT)\times WT\times 0.02466\times Length(mm)$ / 1000
Example: For a 12" SCH80S elbow (OD = 323.9mm, WT = 10.31mm):
Weight ≈ 8.92 kg.

For quick reference, consult our stainless steel elbow weight chart, which provides pre-calculated values for standard sizes (1/2" to 48") and wall thicknesses. Custom weights for stainless steel exhaust elbow variants (e.g., reinforced collars or flanges) are available upon request.

Why Stainless Steel Elbows May Corrode?

While stainless steel is corrosion-resistant, specific conditions can trigger localized rust:

1. Chloride Stress Corrosion (CISCC): Coastal or chemical environments degrade Grade 304. Upgrade to 316L (2.5% Mo) or super duplex steels for chloride-rich settings.
2. Galvanic Corrosion: Direct contact with carbon steel or copper in humid environments accelerates oxidation. Use dielectric gaskets or coatings to isolate metals.
3. Welding Defects: Poor argon shielding during welding causes chromium carbide precipitation. Our elbows undergo post-weld pickling and electropolishing to restore the passive oxide layer.
4. Abrasive Erosion: Particulate-laden fluids erode surfaces. Specify electro-polished interiors (Ra ≤0.4μm) for smooth flow and reduced wear.

Key Advantages

1. Heavy-Gauge Durability: SCH160 and XXS options withstand abrasive slurries and cryogenic temperatures (-200°C).
2. High-Temperature Resistance: Ideal for stainless steel exhaust elbow applications in automotive and aerospace industries.
3. Hygienic Design: Mirror-polished surfaces (Ra ≤0.4μm) meet FDA and 3A sanitary standards for food and pharmaceutical pipelines.

Why Choose Us?

As a leading manufacturer of high-strength stainless steel elbows, we offer:
✅ Certified Excellence: ISO 9001, PED, and NACE-certified production lines.
✅ Global Inventory: 10,000+ stainless steel elbow weight variants in stock for 24–72hr dispatch.
✅ Technical Support: Free CAD models, stress analysis, and corrosion-resistance guides.
✅ Sustainable Practices: Zero-waste manufacturing and 100% recyclable materials.
✅ Custom Solutions: Tailored stainless steel exhaust elbow designs for automotive, marine, and industrial systems.