General Information
Chemical Composition
Physical Properties
Mechanical Properties
General Information
Alloy 904L (UNS N08904) is a superaustenitic stainless steel that is designed for moderate to high corrosion resistance in a wide range of process environments. The combination of high chromium and nickel content, coupled with additions of molybdenum and copper, assure good to excellent corrosion resistance.With its highly alloyed chemistry — 25% nickel and 4.5% molybdenum, 904L provides good chloride stress corrosion cracking resistance, pitting and general corrosion resistance superior to 316L and 317L molybdenum enhanced stainless steels.Alloy 904L was originally developed to withstand environments containing dilute sulfuric acid. It also offers good resistance to other inorganic acids such as hot phosphoric acid as well as most organic acids. Alloy 904L is easily welded and processed by standard shop fabrication practices.
Standard Inventory Specifications
- ASTM……..A 240, B 625
- ASME……..SA 240, SB 625
Common Trade Names
- Alloy 904L
Common Applications of 904L
- Air Pollution Control — scrubbers for coal-fired power plants
- Chemical Processing — process equipment for the production of sulfuric, phosphoric, inorganic and organic acids and the production of phosphate-based fertilizers
- Metallurgical Processing — pickling equipment using sulfuric acid
- Oil and Gas Production — offshore process equipment
- Pharmaceutical Industry — process equipment
- Pulp and Paper — processing equipment
- Seawater and Brackish Water — condensers, heat exchangers and piping systems
Chemical Composition
904L Chemical Composition
Element
Percent by Weight
C
Carbon
0.09 maximum
Mn
Manganese
2.00 maximum
P
Phosphorus
0.045 maximum
S
Sulfur
0.035 maximum
Si
Silicon
1.00 maximum
Cr
Chromium
19.00-23.00 maximum
Ni
Nickel
23.00 – 28.00 maximum
Cu
Copper
1.00 – 2.00 maximum
Physical Properties
904L Physical Properties
| Physical property | Value | |
| Density (Kg/m3) | 0.28 lb/in3 | |
| Melting Range: | 2372 – 2534 °F | |
| Specific Heat Capacity at 32 – 212°F | 0.11 Btu/lb/°F | |
| Thermal Conductivity at 212°F | 6.8 Btu/hr-ft-°F | |
| Poisson’s Ratio | ||
| Elastic Modulus at 68°F | 28 x 106 psi | |
Mechanical Properties
Mechanical Properties 904L
904L Seamless Pipe
Standard: ASTM, JIS, DIN, EU…
Grade: 904L…
Size: OD: Φ4-Φ1219mm; WT:…
Introduction: Wisine its production capacity of stainless steel seamless pipe, roughly 2100 tons per month. As per your requirement…
Get a quote
Learn More
904L Sanitary Tube
Standard: ASTM, JIS, DIN, EU…
Grade: 904L…
Size: OD: Φ8-Φ850mm; WT:…
Introduction: Wisine produces sanitary tubes that are widely applicable to food & beverage industry, pharmaceutical industry…
Get a quote
Learn More
904L Thick-walled Pipe
Standard: ASTM, JIS, DIN, EU…
Grade: 904L…
Size: OD: Φ10-Φ1219mm; WT:…
Introduction: Thick-walled stainless steel pipe, also named stainless steel hollow bar, are usually used for mechanical applications or…
Get a quote
Learn More
904L Welded Pipe
Standard: ASTM, JIS, DIN, EU…
Grade: 904L…
Size: OD: Φ6-Φ2800mm; WT:…
Introduction: Wisine produces welded stainless steel pipe in different shapes: round, square and rectangle. In comparison with seamless pipe…
Get a quote
Learn More
904L Square Pipe
Standard: ASTM, JIS, DIN, EU…
Grade: 904L…
Size: Side Length: 4×4-300×300mm…
Introduction: As per your requirement, stainless steel square pipe can be made into welded stainless steel square pipe or…
Get a quote
Learn More
904L Rectangle Pipe
Standard: ASTM, JIS, DIN, EU…
Grade: 904L…
Size: Side Length: 4×6-200×400…
Introduction: Stainless steel rectangle pipe is hollow stainless steel long product and can be classified into seamless and welded…
Get a quote
Learn More
904L Capillary Tube
Standard: ASTM, JIS, DIN, EU…
Grade: 904L…
Size: OD: Φ0.4-Φ16.0mm; WT:…
Introduction: Wisine produces stainless steel capillary with different finishes for your option. Quite common in our international markets…
Get a quote
Learn More
904L Coil Tube
Standard: ASTM, JIS, DIN, EU…
Grade: 904L…
Size: OD: Φ0.4-Φ16mm; WT:…
Introduction: Stainless steel coil tubes refer to those tubes with diameter ranging from 0.5mm to 20mm and wall thickness from…
Get a quote
Learn More
904L Elbow
Standard: ASTM, JIS, DIN, EU…
Grade: 904L…
Outer Diameter: DN15 – DN600…
Wall Thickness: Sch5S- Sch160…
Classification: 45° elbow, 90° elbow, 180° elbow, long radius elbow, short radius elbow…
Get a quote
Learn More
904L Flange
Standard: ASTM, JIS, DIN, EU…
Grade: 904L…
Outer Diameter: DN6 – DN750…
Wall Thickness: Sch5S-Sch160S…
Classification: SW (Socket Welding) flange, WN (Welding Neck) flange, SO (Slip-On) flange…
Get a quote
Learn More
904L Tee
Standard: ASTM, JIS, DIN, EU…
Grade: 904L…
Outer Diameter: DN15 – DN750…
Wall Thickness: Sch5S-Sch160…
Classification: Straight tee, reducing tee…
Get a quote
Learn More
904L Cross
Standard: ASTM, JIS, DIN, EU…
Grade: 904L…
Outer Diameter: DN15 – DN1200…
Wall Thickness: Sch5S-Sch160…
Classification: Straight cross, reducing cross…
Get a quote
Learn More
904L Reducer
Standard: ASTM, JIS, DIN, EU…
Grade: 904L…
Outer Diameter: DN15 – DN500…
Wall Thickness: Sch5S-Sch160…
Classification: Concentric reducer, eccentric reducer…
Get a quote
Learn More
904L Pipe Cap
Standard: ASTM, JIS, DIN, EU…
Grade: 904L…
Outer Diameter: DN15 – DN1200…
Wall Thickness: Sch5S- Sch160…
Classification: Hemispherical cap, elliptical/oval cap, dish cap, spherical cap…
Get a quote
Learn More
904L Round Bar
Standard: ASTM, JIS, DIN, EU…
Grade: 904L…
Size: Diameter: 2mm – 600mm…
Introduction: Stainless steel round bars are categorized as both long products and bar materials. SS round bar is long stainless steel product…
Get a quote
Learn More
904L Flat Bar
Standard: ASTM, JIS, DIN, EU…
Grade: 904L…
Size: Thickness: 0.5mm – 200mm…
Introduction: Stainless steel flat bars are of rectangle shape with root face (or round edges) and they can be semi-finished or finished…
Get a quote
Learn More
904L Angle Bar
Standard: ASTM, JIS, DIN, EU…
Grade: 904L…
Size: Equal Angle Bar Dimensions…
Introduction: Stainless steel angle bars are L-shape bars with two side widths perpendicular to each other. The two widths can be equal…
Get a quote
Learn More
904L Square Bar
Standard: ASTM, JIS, DIN, EU…
Grade: 904L…
Size: Dimensions: 2mmx2mm – …
Introduction: Stainless steel square bars are long stainless steel products with its cross section as square. At Wisine, we produce SS square…
Get a quote
Learn More
904L Hexagon Bar
Standard: ASTM, JIS, DIN, EU…
Grade: 904L…
Size: Dimension: 3mm – 180mm…
Introduction: Stainless steel hex bar is solid stainless steel long product with its cross section as hexagonal. Wisine produce stainless…
Get a quote
Learn More
904L Channel Bar
Standard: ASTM, JIS, DIN, EU…
Grade: 904L…
Size: Hot Rolled: 40mmx80mmx…
Introduction: Stainless steel channel bar is stainless steel long product with its section as U shape. At Wisine, apart from stainless steel…
Get a quote
Learn More
904L Sheet
Standard: ASTM, JIS, DIN, EU…
Grade: 904L…
Size: Thickness: ≤ 5mm…
Introduction: In Wisine, we refer to thickness below 5mm as stainless steel sheets and thickness above 5mm as SS plates…
Get a quote
Learn More
904L Plate
Standard: ASTM, JIS, DIN, EU…
Grade: 904L…
Size: Thickness: ≥ 5mm…
Introduction: In Wisine, we regard thickness above (includes) 5mm as stainless steel plates. Our stainless steel plates are hot rolled…
Get a quote
Learn More
904L Coil
Standard: ASTM, JIS, DIN, EU…
Grade: 904L…
Size: Width: ≥ 610mm…
Introduction: Our stainless steel coils are primary quality coils from the origin of Baosteel, ZPSS, TISCO, JISCO, ATI, SMC, HAYNES…
Get a quote
Learn More
904L Strip
Standard: ASTM, JIS, DIN, EU…
Grade: 904L…
Size: Width: ≤ 610mm…
Introduction: Stainless steel strip has its width less than 610mm, with its thickness ranging from 0.02mm to 6mm. For width over 610mm…
Get a quote
Learn More
904L Wire
Standard: ASTM, JIS, DIN, EU…
Grade: 904L…
Size: Diameter: 0.02mm-25mm…
Introduction: Wisine produces high quality wire and stainless steel wire rope. Our annual production capacity is roughly 8000 tons…
Get a quote
Learn More
904L Wire Rod
Standard: ASTM, JIS, DIN, EU…
Grade: 904L…
Diameter: Hot rolled wire rod:…
Weight: ≤500Kg per roll
Tolerance: H9, H11
Get a quote
Learn More
904L Wire Rope
Standard: ASTM, JIS, DIN, EU…
Grade: 904L…
Size: Φ0.15mm-Φ50mm…
Introduction: Wisine produces high quality wire and stainless steel wire rope. Our annual production capacity is roughly 8000 tons…
Get a quote
Learn More