Yuhong Group Co.,Ltd
| Hardness | 70-90 typical |
| Pressure Class | Class150/300/600/9001500/2500 |
| Yield Strength | 220 MPa min |
| Elongation | 35% min |
| Size Range | 1''- 48'' OR CUSTOMIZED |
| Tensile Strength | 490 MPa min |
| Face Configuration | Flat Face (FF) |
| Payment Terms | T/T,L/C AT SIGHT |
| Supply Ability | 1000PCS per month |
| Delivery Time | Depending on QTY |
| Packaging Details | Ply-wooden Case /Iron Case/ Bundle with plastic Cap |
| Material | F904L / UNS N08904 |
| Brand Name | YUHONG |
| Model Number | ASTM A240 SS904L Slip-On Flange |
| Certification | API , ABS, DNV, GL , LR, NK |
| Place of Origin | China |
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Product Specification
| Hardness | 70-90 typical | Pressure Class | Class150/300/600/9001500/2500 |
| Yield Strength | 220 MPa min | Elongation | 35% min |
| Size Range | 1''- 48'' OR CUSTOMIZED | Tensile Strength | 490 MPa min |
| Face Configuration | Flat Face (FF) | Payment Terms | T/T,L/C AT SIGHT |
| Supply Ability | 1000PCS per month | Delivery Time | Depending on QTY |
| Packaging Details | Ply-wooden Case /Iron Case/ Bundle with plastic Cap | Material | F904L / UNS N08904 |
| Brand Name | YUHONG | Model Number | ASTM A240 SS904L Slip-On Flange |
| Certification | API , ABS, DNV, GL , LR, NK | Place of Origin | China |
| High Light | Forged Flange Ring ，Stainless Steel Flange Ring | ||
ASTM A240 SS904L UNS N08904 Plate Fabricated Slip-On Flange with Flat Face is manufactured from 904L stainless steel plate, with UNS N08904 / EN 1.4539 as its commonly referenced material designations.
Unlike forged flanges, this product is produced through a plate fabrication process, typically involving plate cutting, forming or fabrication, welding where required, and precision machining. This manufacturing route provides flexibility for large-diameter flanges, customized dimensions and project-specific bolt configurations.
The flange features a Slip-On configuration with Flat Face (FF) and is suitable for bolted connections in chemical, process and other corrosive-service piping systems.
The AWWA C207 flanges are intended for attachment to steel pipes, fittings, valves or other appurtenances in water utility service. The standard specifies two general types of flange: ring-type slip-on flanges (also known as ring flanges or plate flanges) and blind flanges. Both are steel flanges without hub. The standard also provides additional information for dimensions of steel-hub flanges in Appendix B.
AWWA C207 flanges are classified into four classes according to working pressure limits: Class B (86 psi), Class D (175-150 psi), Class E (275 psi), and Class F (300 psi). These pressure limits are for conditions and temperatures customary in water utility service.
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | Cu |
|---|---|---|---|---|---|---|---|---|---|
| 904L | Min: - Max: 0.2 |
Min: - Max: 2 |
Min: - Max: 1 |
Min: - Max: 0.045 |
Min: - Max: 0.035 |
Min: 19 Max: 23 |
Min: 4 Max: 5 |
Min: 23 Max: 28 |
Min: 1 Max: 2 |
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness Brinell (HB) |
|---|---|---|---|---|
| 904L | 490 | 220 | 35 | 70-90 typical |
The Slip-On flange is positioned over the connecting pipe before welding. The bore is manufactured according to the pipe outside diameter and specified wall configuration.
Typical dimensional parameters include:
Dimensions can be manufactured according to project drawings or applicable flange dimensional requirements.
| Standard / System | Designation |
|---|---|
| Product Grade | SS904L |
| UNS | N08904 |
| EN | 1.4539 |
| EN Designation | X1NiCrMoCu25-20-5 |
| Common Material Name | 904L Stainless Steel |
| Raw Material Standard | ASTM A240 |
| Feature | SS316L | SS904L |
|---|---|---|
| Material Family | Austenitic Stainless Steel | Super Austenitic Stainless Steel |
| Nickel Content | Moderate | Higher |
| Molybdenum Content | Moderate | Higher |
| Copper Addition | Low | Intentional Addition |
| Corrosion Resistance | General Corrosive Service | More Aggressive Chemical Service |
| Typical Positioning | General Process Applications | Acid & High-Corrosion Applications |
SS904L should not be considered a universal replacement for 316L. Selection should be based on the actual process chemistry, temperature and corrosion mechanism.
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Importer,Exporter,Trading Company,Seller,Other
Year Established:
2007
Total Annual:
50M-70M
Employee Number:
50~850
Ecer Certification：
Verified Supplier
Yuhong Group is one of the large scale group company in China, more than 35 years experience in the international market, providing high-quality services to over 3000 customers, end user which like Aramco, Petrobras, Pemex, Petronas, Ecopetro, Petroecuador, …. till now Yuhong Grou... Yuhong Group is one of the large scale group company in China, more than 35 years experience in the international market, providing high-quality services to over 3000 customers, end user which like Aramco, Petrobras, Pemex, Petronas, Ecopetro, Petroecuador, …. till now Yuhong Grou...
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