Stainless Steel 904L Buttweld Fittings are essential components in various industries, known for their exceptional corrosion resistance and durability. These fittings are primarily used to join or connect stainless steel pipes, offering a secure and leak-free connection. Stainless Steel 904L, also known as UNS N08904, is a high-alloy austenitic stainless steel that contains a higher percentage of nickel and molybdenum compared to standard stainless steels, making it highly resistant to various corrosive environments, including sulfuric acid, chloride solutions, and more.
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Here are some key features and benefits of Stainless Steel 904L buttweld fittings:
Corrosion Resistance: The most outstanding feature of Stainless Steel 904L is its exceptional corrosion resistance. This alloy is highly resistant to a wide range of corrosive media, making it suitable for applications in harsh environments, such as the chemical and petrochemical industries.
High-Temperature Resistance: Stainless Steel 904L Pipe Fittings can withstand elevated temperatures, making it suitable for applications where heat resistance is essential, such as in heat exchangers and boiler systems.
Ductility and Weldability: This alloy is known for its excellent ductility, allowing for easy forming and welding. It can be readily welded using standard welding techniques, ensuring a strong and leak-free connection.
Longevity and Durability: Stainless Steel 904L buttweld fittings are built to last. They have a long service life, reducing the need for frequent replacements and maintenance.
Versatility: These fittings are versatile and can be used in a wide range of applications, including chemical processing, pharmaceuticals, food processing, desalination, and more.
Common types of Stainless Steel 904L Buttweld Fittings include elbows, tees, reducers, caps, and stub ends. These fittings come in various sizes, schedules, and specifications to meet the diverse requirements of different industries.
When selecting Stainless Steel 904L pipe fittings, it is crucial to consider factors like the working environment, temperature, pressure, and specific application requirements. Proper material selection and precise installation are essential to ensure the long-term performance and reliability of the fittings.
ASTM A403 / ASME SA403
ANSI B16.9, B16.25, B16.28, MSS-SP-43, MSS-SP-48, MSS-SP-59
Seamless Butt Weld Fittings : 1/2″ – 10″ Welded Butt Weld Fittings : 1/2″ – 48″
Seamless / Welded / Fabricated
SCH10, SCH20, SCH30, STD SCH40, SCH60, XS, SCH 80, SCH 100, SCH 120, SCH 140, SCH 160, XXS available with NACE MR 01-75
from 2 to 40 mm
R=1D, 2D, 3D, 5D, 6D, 8D, 10D or Custom
90 Deg. Elbow, 45 Degree Elbow, LR/SR Elbow, Reducers, Tee, Cross, Bends 1.5d, 3d, 5d, 10d, U bend, 180 Deg Bend, Short / Long stubends, End Cap, Lap-joint Stub End
| STANDARD | WERKSTOFF NR. | UNS | JIS | BS | KS | AFNOR | EN |
| SS 904L | 1.4539 | N08904 | SUS 904L | 904S13 | STS 317J5L | Z2 NCDU 25-20 | X1NiCrMoCu25-20-5 |
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | Cu |
| SS 904L | 0.020 max | 2.00 max | 1.00 max | 0.040 max | 0.030 max | 19.00 – 23.00 | 4.00 – 5.00 max | 23.00 – 28.00 | 1.00 – 2.00 |
| Grade | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 904L | 7.95 g/cm3 | 1350 °C (2460 °F) | Psi – 71000 , MPa – 490 | Psi – 32000 , MPa – 220 | 35 % |
Oil & Gas Industrires
Chemical Industries
Construction Industries
Offshore Pipelines & Pipe Works
Petrochemical Industry
Shipbuilding Industries
Hydraulic Applications
Piping Systems
Refining Industry
Food Processing Industry
Pulp & Paper Industry
Power Plant Industry
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