Industrial-Grade Stainless Steel 90 Degree Elbow | Seamless & Reliable

Industrial-Grade Stainless Steel 90 Degree Elbow | Seamless & Reliable

Product Specifications

Key Properties

1. Tensile & Yield Strength

   • 316L: Delivers tensile strength of 485–620 MPa (70,340–89,923 psi) and yield strength ≥205 MPa (29,740 psi), enhanced by 2–3% molybdenum for chloride resistance. Ideal for 4 inch stainless steel 90 degree exhaust elbow in automotive/marine systems.
   • 304L: Provides 515–690 MPa tensile strength with low carbon (≤0.03%), reducing intergranular corrosion risks in welded joints.

2. Bend Strength & Formability

   • Both grades exhibit ≥40% elongation, enabling tight-radius bends (R=1D) without cracking. Cold-rolled variants achieve up to 550 MPa strength for double elbow stainless steel washing machine hoses requiring vibration resistance.

3. Corrosion Resistance

   • Chromium (16–20%) and nickel (8–11%) form a self-repairing oxide layer. 316L outperforms in saltwater/pH extremes, 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 MTR (Mill Test Reports).
• Traceability: Complies with ISO 15156 for oil/gas 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 45 degree elbow stainless steel (1.2m × 2.4m) weighs:
$5\times 1.2\times 2.4\times 7.93=114.5\text{kg}$.

Why Stainless Steel Rusts?

Despite its corrosion resistance, degradation occurs under specific conditions:

1. Chloride Exposure: Saltwater or de-icing agents penetrate the oxide layer, causing localized pitting. Critical for marine double elbow stainless steel washing machine hoses in coastal areas.
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

• 4 Inch Stainless Steel 90 Degree Exhaust Elbow: Mandrel-bent designs (Sch10–Sch40) for automotive exhausts, withstanding 800°C temperatures.
• 45 Degree Elbow Stainless Steel: Precision bends for HVAC systems and chemical plants, available in seamless or welded variants.
• Double Elbow Stainless Steel Washing Machine Hoses: Vibration-resistant loops for industrial laundries, combining mirror-polished hygiene (Ra ≤0.4µm) with 50-bar pressure tolerance.

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. Precision Customization: CNC machining for 4 inch or 45 degree elbow stainless steel designs, including perforated/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 corrosion prevention, installation, and custom fabrication.