Corrosion-Resistant Stainless Steel 90 Degree Elbow | 5" Custom Fit

Corrosion-Resistant Stainless Steel 90 Degree Elbow | 5" Custom Fit

Product Specifications

Key Properties

1. Tensile & Yield Strength

   • 316L: Offers tensile strength of 485–620 MPa (70,340–89,923 psi) and yield strength ≥205 MPa (29,740 psi). Enhanced by 2–3% molybdenum, it resists chloride-induced pitting in marine or chemical environments.
   • 304L: Provides tensile strength of 515–690 MPa (74,694–100,076 psi) with low carbon content (≤0.03%), ideal for welding and food-grade applications.

2. Bend Strength & Formability

   • Both grades exhibit ≥40% elongation, enabling tight-radius bends (R=1D) for 90 degree stainless steel elbow designs without cracking. Cold-rolled variants achieve up to 550 MPa strength for automotive exhaust systems.

3. Corrosion Resistance

   • Chromium (16–20%) and nickel (8–11%) form a self-repairing oxide layer. 316L outperforms in saltwater or acidic environments, while 304L resists organic acids in food processing.

Identification & Marking

• International Standards: Laser-etched codes include heat batch numbers, grade certifications (ASTM/EN/JIS), and mill test reports (MTR).
• Traceability: Compliant with ISO 15156 for oil/gas applications and FDA standards for sanitary systems.

Weight Calculation

Use the formula:
$\text{Weight (kg)}=\text{Thickness (mm)}\times \text{Width (m)}\times \text{Length (m)}\times \text{Density (7.93 g/cm³)}$
Example: A 5 mm thick stainless steel elbow pipe (1.2m × 2.4m) weighs:
$5\times 1.2\times 2.4\times 7.93=114.5\text{kg}$.

Why Stainless Steel Rusts?

While inherently corrosion-resistant, degradation occurs under specific conditions:

1. Chloride Exposure: Saltwater or de-icing agents penetrate the oxide layer, causing localized pitting.
2. Mechanical Damage: Scratches from abrasive tools expose the iron matrix, initiating rust.
3. Low Oxygen Environments: Stagnant water in crevices inhibits oxide regeneration, leading to crevice corrosion.
4. High-Temperature Oxidation: Prolonged exposure above 870°C degrades protective films, accelerating scaling.

Applications

• 3 Inch Stainless Steel Exhaust Pipe 90 Degree Elbow: Mandrel-bent designs (Sch10–Sch40) for automotive exhausts, withstanding 800°C temperatures.
• Stainless Steel Elbow Pipe: Used in petrochemical plants and marine platforms for fluid redirection, available in seamless (1/2"–24") or welded (26"–72") variants.
• Sanitary Systems: Mirror-polished 90 degree stainless steel elbow fittings for pharmaceutical and food processing, minimizing bacterial adhesion.

Why Choose Our Stainless Steel Elbows?

1. Dual-Certified Quality: ISO 9001 and ASME B16.9 compliance, with raw materials sourced from TISCO/Baosteel.
2. Customization: Precision CNC machining for 5" or 3 inch stainless steel exhaust pipe 90 degree elbow designs, including perforated or grooved patterns.
3. Global Logistics: 10,000+ ton inventory with air/sea shipping (MOQ: 1 ton) and 7–25-day lead times.
4. Sustainability: 90% recycled content and full recyclability, meeting eco-friendly manufacturing standards.
5. Technical Support: 24/7 engineering assistance for material selection, corrosion prevention, and installation.