904L Stainless Steel Elbow,N08904 1.4539 Elbow LR ASME B16.9
We are a professional manufacturer of 904L Stainless Steel Elbow,N08904 1.4539 Elbow LR ASME B16.9 Pipe fittings.
A 904L stainless steel elbow is a pipe fitting used to change the direction of flow in corrosive and high-temperature environments. Made from ASTM A312 TP904L Pipe , this elbow offers superior resistance to acids, chloride pitting, and stress corrosion cracking, making it ideal for chemical processing, marine, and oil & gas industries.
904L is a high-alloy austenitic stainless steel known for its superior corrosion resistance in acidic and chloride-rich environments. With a low carbon content (≤ 0.02%) and high amounts of nickel (23-28%), chromium (19-23%), molybdenum (4-5%), and copper (1-2%), 904L is widely used in industries requiring exceptional durability and resistance to aggressive chemicals.
904L Stainless Steel Composition
The chemical composition of stainless steel 904L contains roughly 19 to 23% chromium, 23 to 28% nickel, 4 to 5% molybdenum, and 1.0-2.0% Cu, which gives the alloy greater corrosion resistance than 316L.
| Grade | Ni | Cr | Mo | Cu | C | Mn | Si | P | S | Fe |
|---|---|---|---|---|---|---|---|---|---|---|
| 904L | 23 – 28 | 19 – 23 | 4.0 -5.0 | 1.0 – 2.0 | 0.02 | 2.00 | 1.00 | 0.045 | 0.035 | Balance |
904L Stainless Steel Mechanical Properties
| Mechanical Properties | Data |
|---|---|
| Yield Strength, min. (Mpa) | 215 |
| Tensile Strength, min. (Mpa) | 490 |
| Elongation, min. | 35% |
| Hardness, max. (HRB) | 90 |
904L Stainless Steel Equivalents
| AISI | UNS | DIN | EN |
|---|---|---|---|
| 904L | N08904 | 1.4539 | X1NiCrMoCu25-20-5 |
Key Features of 904L SS Elbow:
High Corrosion Resistance: Excellent performance in sulfuric acid, phosphoric acid, and chloride-rich environments.
Low Carbon Content (≤ 0.02%): Reduces carbide precipitation, ensuring better weldability.
High Strength & Durability: Withstands high-pressure and high-temperature applications.
Non-Magnetic & Good Weldability: Remains non-magnetic even after welding and forming.
Types of 904L Stainless Steel Elbows:
90° Elbow: Most common, changes flow direction by 90 degrees.
45° Elbow: Redirects flow by 45 degrees, reducing pressure drop.
180° Return Bend: Used in U-turn flow applications.
Short Radius (SR) Elbow: Compact design for space-saving applications.
Long Radius (LR) Elbow: Reduces pressure loss and turbulence in pipelines.
Applications of SS904L Elbows:
Chemical & Petrochemical Plants (resistant to strong acids)
Oil & Gas Industry (offshore and refinery applications)
Marine Industry (saltwater corrosion resistance)
Power Plants & Heat Exchangers
Food & Beverage Processing
SS904L Elbows, Made from premium super austenitic stainless steel, are the ultimate solution for piping systems exposed to highly corrosive environments. Designed to comply with ASTM B366 and ASME B16.9 standards, these elbows combine exceptional mechanical strength with unmatched resistance to pitting, crevice corrosion, and stress corrosion cracking (SCC). Ideal for industries like chemical processing, offshore oil and gas, and desalination, SS904L Elbows ensure long-term reliability even in chloride-rich or acidic conditions
ASTM B366/B366M-20
Standard Specification for Factory-Made Wrought Nickel and Nickel Alloy Fittings
ASTM B366 WP904L Elbow
ASTM B366 WP904L 90 Degree SMLS Elbow 6 Inch SCH40S
ASTM B366 WP904L 45 Degree SMLS Elbow 8 Inch SCH40S
Looking for 904L stainless steel elbow? Contact us for the best prices and high-quality materials!
