Optimal Stainless Steel 90 Degree Elbow | 5" Heavy-Duty Exhaust Systems

Premium Corrosion-Resistant Fittings for Industrial & Marine Applications

Product Specifications

Technical Properties

Tensile Strength

The stainless steel pipe elbow fitting achieves tensile strengths between 515 MPa and 860 MPa, depending on the alloy grade (e.g., 316L for marine environments). Advanced heat treatments, including solution annealing and quenching, refine the microstructure to prevent stress corrosion cracking. This makes it ideal for high-pressure systems like exhaust pipelines and chemical processing units.

Bending Strength

Engineered with a smooth internal radius, the stainless steel short radius elbow minimizes turbulence and maintains bending strength exceeding 350 MPa. Its seamless design ensures leak-proof joints under cyclic loading, critical for applications requiring compact installations in tight spaces.

Weight Calculation Formula

Calculate approximate weight using:
Weight (kg) = (OD - WT) × WT × 0.02466 × Length (mm)
(OD = Outer Diameter, WT = Wall Thickness).
For example, a 5" SCH40 elbow (OD 141.3mm, WT 6.55mm) weighs 2.8 kg/m.

Identification & Marking

Each elbow is laser-etched with traceable identifiers:

• Material Grade (e.g., 316L)
• Size & Thickness (e.g., 5" SCH40)
• Certification Stamp (ASME B16.9, DIN 2605)
• Batch Number for quality control and compliance tracking.

Why Stainless Steel Elbows Resist Rust?

While stainless steel is inherently corrosion-resistant, localized rust can occur under specific conditions:

1. Chloride Exposure: Prolonged contact with seawater or de-icing salts may breach the chromium oxide layer. Grade 316L’s molybdenum content (2-3%) enhances chloride resistance, making it ideal for marine exhaust systems.
2. Galvanic Corrosion: Contact with dissimilar metals (e.g., carbon steel) in conductive environments creates electrochemical reactions. Insulating gaskets or coatings mitigate this risk.
3. Surface Contamination: Iron particles from tools or grinding can initiate oxidation. Electro-polishing or passivation post-fabrication restores the passive layer.
4. Low Oxygen Environments: Stagnant water or crevices hinder oxide layer regeneration. Regular CIP (Clean-in-Place) cycles in sanitary systems maintain optimal conditions.

Applications

• Marine Exhaust Systems: Withstands saltwater corrosion and high-temperature gases (up to 800°C).
• Industrial Piping: High-pressure chemical processing, HVAC, and oil refineries.
• Sanitary Fluid Transfer: Mirror-polished stainless steel pipe elbow fitting for hygienic food/beverage pipelines.
• Compact Installations: Stainless steel short radius elbow designs for space-constrained environments.

Why Choose Our Stainless Steel Elbows?

1. Aerospace-Grade Alloys: Forged from 304/316L stainless steel with 100% radiographic testing and hydrostatic validation.
2. Global Compliance: Meets ASME, DIN, ISO, and 3A standards for seamless integration into international projects.
3. Customization: Tailored dimensions (1/2" to 48"), bends (R1D to R10D), and connection types (stainless steel schedule 10 45 degree butt weld pipe elbows or seamless options).
4. Eco-Friendly: 100% recyclable with a low carbon footprint, aligning with sustainable manufacturing practices.
5. 24/7 Technical Support: Expert guidance on installation, maintenance, and material selection.