Product Overview ASTM A403 WP904L Elbow
ASTM A403 WP904L Elbow is a high-performance stainless steel butt-weld pipe fitting manufactured from Super Austenitic Stainless Steel 904L (UNS N08904 / EN 1.4539). Designed for superior corrosion resistance in highly aggressive environments, WP904L elbows are widely used in chemical processing, offshore, oil & gas, pharmaceutical, and seawater handling applications.
Grade 904L contains high levels of chromium, nickel, molybdenum, and copper, offering exceptional resistance to pitting, crevice corrosion, stress corrosion cracking (SCC), and strong acids such as sulfuric acid.
These elbows are manufactured in accordance with ASME B16.9 / B16.28 dimensional standards and supplied with full traceability and mill test certification.
Key Features
- Excellent resistance to pitting & crevice corrosion
- Superior performance in sulfuric & phosphoric acid environments
- High resistance to chloride-induced stress corrosion cracking
- Good weldability and formability
- High impact strength even at low temperatures
- Suitable for high-pressure & high-temperature services
Available Types
- 90° Long Radius Elbow
- 90° Short Radius Elbow
- 45° Elbow
- 180° Return Bend
Available Sizes
| Nominal Pipe Size (NPS) | Outer Diameter (OD) | Schedule |
|---|---|---|
| ½” to 24” | As per ASME B36.19 | SCH 5S to SCH XXS |
| Larger Sizes | Up to 48” (on request) | Custom Thickness Available |
Wall Thickness Options:
SCH 5S, 10S, 20, 40S, 40, 60, 80S, 80, 120, 160, XXS
ASTM A403 WP904L Chemical Composition (%)
| Element | Content |
|---|---|
| Chromium (Cr) | 19.0 – 23.0 |
| Nickel (Ni) | 23.0 – 28.0 |
| Molybdenum (Mo) | 4.0 – 5.0 |
| Copper (Cu) | 1.0 – 2.0 |
| Carbon (C) | ≤ 0.02 |
| Manganese (Mn) | ≤ 2.0 |
| Silicon (Si) | ≤ 1.0 |
ASTM A403 WP904L Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength | ≥ 490 MPa |
| Yield Strength | ≥ 220 MPa |
| Elongation | ≥ 35% |
| Hardness | ≤ 90 HRB |
Applications
- Chemical & Petrochemical Processing
- Sulfuric Acid Plants
- Offshore & Marine Systems
- Oil & Gas Pipelines
- Heat Exchangers
- Desalination Plants
- Pharmaceutical & Food Processing Industries
Reviews
There are no reviews yet.