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Durable Stainless Steel 90 Degree Elbow | 316L 1.5D Long Radius
Durable Stainless Steel 90 Degree Elbow | 316L 1.5D Long Radius
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Product Detail Page: Durable Stainless Steel 90 Degree Elbow | 316L 1.5D Long Radius
Product Overview
The stainless steel 90 degree elbow is engineered for precision and durability in high-demand industrial applications. Crafted from 316L stainless steel, this 1.5D long-radius elbow ensures optimal flow efficiency, reduced pressure drop, and resistance to corrosion in harsh environments such as chemical processing, marine systems, and oil/gas pipelines.
Specifications & Technical Data
| Parameter | Details |
|---|---|
| Material | 316L Stainless Steel (Low carbon, Mo-enhanced for superior corrosion resistance) |
| Standard | ASME B16.9, DIN 2605, MSS SP-75 |
| Radius | 1.5D (Long Radius) |
| Size Range | ½" NB to 48" NB (DN15–DN1200) |
| Wall Thickness | SCH10S, SCH40S, SCH80S, XXS |
| Connection Type | Butt-Weld |
| Hardness | 70–90 HRB (Rockwell B Scale) |
| Surface Finish | Electro-Polished/Sandblasted (Ra ≤ 0.8μm) |
| Temperature Range | -20°C to 800°C |
| Pressure Rating | 3,000 PSI (SCH80S) |
Key Features
- Corrosion Resistance: The 316L stainless steel elbow contains molybdenum (2–3%), enhancing resistance to chlorides, acids, and saltwater.
- High Strength: Tensile strength ≥ 485 MPa, yield strength ≥ 170 MPa, ensuring structural integrity under extreme pressures.
- Hygienic Design: Smooth, non-porous surface prevents bacterial growth, ideal for food, pharmaceutical, and sanitary systems.
- Versatility: Compatible with hydraulic, pneumatic, and high-temperature pipelines.
Technical Descriptions
Tensile & Bend Strength
The stainless steel pipe elbow achieves a tensile strength of 485–650 MPa, validated through ASTM A312/A403 testing. Its 1.5D radius design minimizes turbulence and stress concentration, enabling a bend strength 30% higher than short-radius elbows. This ensures longevity in systems with frequent thermal cycling or mechanical vibration.
Weight Calculation Formula
Calculate the weight of the stainless steel 90 degree elbow using:
Where:
- OD: Outer Diameter (mm)
- WT: Wall Thickness (mm)
- Length: Bend arc length (mm)
Example: For a 24" SCH40S elbow (OD=610 mm, WT=12.7 mm), weight ≈ 18.2 kg.
Identification Marking
Each stainless steel elbow is laser-etched with:
- Material Grade (316L)
- Size (e.g., 24" NB)
- Schedule (e.g., SCH40S)
- Standard Compliance (ASME B16.9)
- Manufacturer’s Certification (EN 10204/3.1B).
Causes of Stainless Steel Rusting
While stainless steel is corrosion-resistant, rust may occur due to:
- Chloride Exposure: Chloride ions in seawater or chemicals degrade the protective chromium oxide layer, causing pitting.
- Mechanical Damage: Scratches or abrasions expose the iron substrate to oxidation.
- Low Oxygen Environments: In stagnant water or sludge, the oxide layer cannot regenerate.
- High Temperatures: Prolonged exposure above 800°C accelerates oxidation.
Regular cleaning and avoiding abrasive tools are critical for maintaining corrosion resistance.
Manufacturing Process
- Material Selection: 316L stainless steel billets sourced from certified mills (JIS, ASTM, DIN).
- Forming: Hot extrusion or cold forging for precise bend radius.
- Welding: Seamless or ERW (Electric Resistance Welded) joints.
- Surface Treatment: Electro-polishing for smoothness or sandblasting for industrial aesthetics.
- Quality Control: 100% hydrostatic testing, radiography (RT/UT), and third-party inspections.
Why Choose Our Stainless Steel Elbows?
- Premium Material: 316L stainless steel offers unmatched corrosion resistance with 16–18% chromium and 10–12% nickel.
- Certified Quality: EN 10204/3.1B, PED 2014/68/EU, and NACE MR0175 compliance.
- Custom Solutions: Tailored dimensions, thickness, and radii (R=1D to 10D).
- Global Supply: Stocked in sizes from ½" to 48", ready for fast delivery.
- Eco-Friendly: Recyclable material and ISO 14001-certified production.
