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| Categories | Steel Flange |
|---|---|
| Brand Name: | YUHONG |
| Model Number: | ASTM A182 F904L Stainless Steel SORF Flange |
| Certification: | ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008 |
| Place of Origin: | CHINA |
| MOQ: | 1 PC |
| Payment Terms: | L/C, T/T |
| Delivery Time: | 7 DAYS |
| Packaging Details: | wooden case packing or according to client requirements |
| Product Name: | Stainless Steel Flanges |
| Dimension: | ASTM, ASME, ANSI, DIN, and EN |
| Standard: | ASTM A182 / ASME SA182 |
| Material Grade: | 904L, UNS N08904 |
| Size: | 1/2" to 48" |
| Pressure/Class: | 150#, 300#, 400#, 600#, 900#, 1500#, 2500# or As Per Custom Requirement |
| Type: | SORF, SOFF, WNRF, SWRF, RTJF, BLIND |
| Processes: | Hot Forging / Rolling / Machining |
| Applications: | Oil and Gas Industries, Pipeline, Shipbuilding Industries,Chemical Industries |
| High Light: | ASTM A182 F904L Stainless Steel Flange, B16.5 Forged SORF Flange |
| Company Info. |
| Yuhong Group Co.,Ltd |
| Verified Supplier |
| View Contact Details |
| Product List |
ASTM A182 F904L / UNS N08904 Slip On Stainless Steel Flanges B16.5 Forged SORF Flange
ASTM A182 F904L stainless steel Flange is a premium material designed for highly demanding applications where common stainless steels like 304 and 316 would fail. Its superior corrosion resistance (in the corrosive environments, including sulfuric acid, phosphoric acid, and chloride-containing solutions.), durability, and performance in extreme environments justify its higher cost. 904L has a polished, attractive finish, making it suitable for architectural and decorative applications. In contrast, 304 and 316 are more economical and suitable for general-purpose usage with less demanding conditions.
Flange Specifications
Dimensions: ASME B16.5 (up to 24" NPS) or B16.47 for larger sizes.
Pressure Ratings: Class 150 to 2500 (dependent on size and design).
Face Finish: Raised Face (RF) typically has a serrated finish (125-250 µin) for better gasket grip.
Equivalent Grades of ASTM A182 F904L Stainless Steel SORF Flange
| STANDARD | WERKSTOFF NR. | UNS | EN | AFNOR | JIS | BS | KS |
| SS 904L | 1.4539 | N08904 | X1NiCrMoCu25-20-5 | Z2 NCDU 25-20 | SUS 904L | 904S13 | STS 317J5L |
Chemical Composition of ASTM A182 F904L Stainless Steel SORF Flange
| 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 |
Mechanical Properties of ASTM A182 F904L Stainless Steel SORF Flange
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 7.95 g/cm3 | 1350 °C (2460 °F) | Psi – 71000 , MPa – 490 | Psi – 32000 , MPa – 220 | 35 % |
Summary Table: 904L vs. Common Stainless Steels
| Property | 904L Stainless Steel | 304 Stainless Steel | 316 Stainless Steel |
|---|---|---|---|
| Nickel Content | 23-28% | 8-12% | 10-14% |
| Molybdenum Content | 4-5% | 0% | 2-3% |
| Copper Content | 1-2% | 0% | 0% |
| Corrosion Resistance | Exceptional | Moderate | Good |
| Cost | High | Low | Moderate |
| Applications | Highly corrosive environments | General-purpose | Marine, medical, chemical |
Applications
Chemical processing equipment
Seawater desalination plants
Oil and gas industry components
Pharmaceutical manufacturing
Heat exchangers and condensers
Marine and offshore structures
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