Yuhong Group Co.,Ltd
| Packaging Details | Ply-wooden Case /Iron Case/ Bundle with plastic Cap |
| Surface treatment | Heat treatment,Galvanized,Black oxidation,customize,pickeling |
| Inspection | Mechinical Property Inspection,Factory or third party assigned,100% inspection |
| Payment Terms | L/C, T/T |
| Pressure | 150lb,300lb,600lb,900lb,1500lb |
| Process | Forged,Drilling/Bending/Stamping,Casting,sand casting&CNC machining,Forging+machining+heating Treatment |
| Standard | ANSI B16.5 ASME B16.47 SERIES A(MSS SP44) |
| Delivery Time | 20-80 |
| Product name | Duplex steel flange |
| Type | Threaded flange,Slip on Flange,socket weld flange,weld neck flange,LAP Joint Flange |
| Material | F51 |
| Model Number | ASTM A182 F11 CL2 |
| Brand Name | YUHONG |
| Certification | API , ABS, DNV, GL , LR, NK. |
| Place of Origin | CHINA |
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Product Specification
| Packaging Details | Ply-wooden Case /Iron Case/ Bundle with plastic Cap | Surface treatment | Heat treatment,Galvanized,Black oxidation,customize,pickeling |
| Inspection | Mechinical Property Inspection,Factory or third party assigned,100% inspection | Payment Terms | L/C, T/T |
| Pressure | 150lb,300lb,600lb,900lb,1500lb | Process | Forged,Drilling/Bending/Stamping,Casting,sand casting&CNC machining,Forging+machining+heating Treatment |
| Standard | ANSI B16.5 ASME B16.47 SERIES A(MSS SP44) | Delivery Time | 20-80 |
| Product name | Duplex steel flange | Type | Threaded flange,Slip on Flange,socket weld flange,weld neck flange,LAP Joint Flange |
| Material | F51 | Model Number | ASTM A182 F11 CL2 |
| Brand Name | YUHONG | Certification | API , ABS, DNV, GL , LR, NK. |
| Place of Origin | CHINA | ||
| High Light | ASTM A182 F316L stainless steel flange ，low carbon corrosion resistant flange ，chemical marine stainless steel flange | ||
| Chemical Composition | ||
| Element | Content Range (%) | Metallurgical Function |
| C (Carbon) | ≤ 0.030 | Critical feature – extra-low carbon design prevents welding sensitization |
| Mn (Manganese) | ≤ 2.00 | Deoxidation; improves hardenability |
| P (Phosphorus) | ≤ 0.045 | Cold brittleness control |
| S (Sulfur) | ≤ 0.030 | Hot brittleness control |
| Si (Silicon) | ≤ 1.00 | Oxidation resistance improvement |
| Cr (Chromium) | 16.0 – 18.0 | Improves oxidation resistance and corrosion resistance |
| Ni (Nickel) | 10.0 – 14.0 | Stabilizes austenitic structure |
| Mo (Molybdenum) | 2.0 – 3.0 | Improves pitting resistance and crevice corrosion resistance |
| N (Nitrogen) | ≤ 0.10 | Solid solution strengthening |
| Core Difference Between F316 and F316L: | ||
| Comparison Item | F316 | F316L |
| Carbon Content (C) | ≤ 0.08% | ≤ 0.030% |
| Welding Sensitization Risk | Present (Cr₂₃C₆ precipitates in HAZ) | None (extra-low carbon design) |
| Post-Weld Heat Treatment (PWHT) | Sometimes required | Rarely required |
| Yield Strength (min) | 205 MPa | 170 MPa |
| Tensile Strength (min) | 515 MPa | 485 MPa |
| Most Common Applications | Non-welded components or components requiring PWHT after welding | Default choice for welded piping systems |
| Mechanical Properties | ||
| Parameter | F316L Standard Requirement (Min.) | F316L Typical Value |
| Tensile Strength (Rm) | ≥ 485 MPa (70 ksi) | 485 – 777 MPa |
| Yield Strength (Rp0.2) | ≥ 170 MPa (25 ksi) | 170 – 889 MPa |
| Elongation (50 mm gage length) | ≥ 30% | 30 – 42% |
| Hardness (HBW) | ≤ 217 HBW | ≤ 217 HBW |
| Reduction of Area | — | ≥ 22% |
| Physical Properties (Reference Values) | ||
| Parameter | Value | Unit |
| Density | ~7.9 – 8.0 | g/cm³ |
| Applicable Temperature Range | -196°C to 538°C | — |
| Magnetic Properties | Non-magnetic (austenitic structure) | — |
| ASME B16.5 Material Group | Group 1.10 | — |
Application
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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