Yuhong Group Co.,Ltd
| Payment Terms | ,L/C,T/T |
| Supply Ability | 100Tons/Month |
| Delivery Time | According to quantity |
| Packaging Details | PLY-WOODEN CASE |
| Material Standard | ASTM A182 F53 / UNS S32750 |
| Face Finish | Raised Face (RF) 125-250 µin AARH per ASME B16.5 |
| Heat Treatment | Solution Annealed @ 1020-1100°C + Water Quenched |
| NDT Inspection | 100% UT per ASTM A388 + PT per ASME V Art.6 |
| NACE Compliance | MR0175/ISO 15156 Level VI (H₂S Partial Pressure > 0.3 psi) |
| Corrosion Resistance | Critical Pitting Temp: >100°C per ASTM G48 Method A |
| Brand Name | YUHONG |
| Place of Origin | CHINA |
| Model Number | ASTM A182 F53 |
| Certification | API, PED |
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Product Specification
| Payment Terms | ,L/C,T/T | Supply Ability | 100Tons/Month |
| Delivery Time | According to quantity | Packaging Details | PLY-WOODEN CASE |
| Material Standard | ASTM A182 F53 / UNS S32750 | Face Finish | Raised Face (RF) 125-250 µin AARH per ASME B16.5 |
| Heat Treatment | Solution Annealed @ 1020-1100°C + Water Quenched | NDT Inspection | 100% UT per ASTM A388 + PT per ASME V Art.6 |
| NACE Compliance | MR0175/ISO 15156 Level VI (H₂S Partial Pressure > 0.3 psi) | Corrosion Resistance | Critical Pitting Temp: >100°C per ASTM G48 Method A |
| Brand Name | YUHONG | Place of Origin | CHINA |
| Model Number | ASTM A182 F53 | Certification | API, PED |
| High Light | F53 WNRF Flange ，WNRF Class 150 Flange | ||
ASTM A182 F53 (UNS S32750) Super Duplex Stainless Steel Weld Neck Raised Face (WNRF) flanges deliver exceptional strength and chloride corrosion resistance. Ideal for offshore, chemical processing, and sour gas pipelines operating at temperatures from -60°C to 300°C. Manufactured under ISO 9001:2015 quality system.
| Element | Min | Max | Typical Value |
|---|---|---|---|
| Chromium (Cr) | 24.0% | 26.0% | 25.2% |
| Nickel (Ni) | 6.0% | 8.0% | 7.0% |
| Molybdenum (Mo) | 3.0% | 4.0% | 3.8% |
| Nitrogen (N) | 0.24% | 0.32% | 0.28% |
| Manganese (Mn) | - | 1.2% | 0.5% |
| PREN① | ≥40 | 42 |
| Property | Value | Test Standard |
|---|---|---|
| Tensile Strength | ≥ 795 MPa (115 ksi) | ASTM A370 |
| Yield Strength (0.2% Offset) | ≥ 550 MPa (80 ksi) | ASTM A370 |
| Elongation (% in 50mm) | ≥ 15% | ASTM A370 |
| Hardness (Brinell) | ≤ 290 HBW | ASTM E10 |
| Charpy V-Notch Impact | ≥ 100 J @ -46°C | ASTM A370 |
| Feature | Competitive Edge |
|---|---|
| Corrosion Resistance | Resists pitting/crevice corrosion in seawater (Cl- > 20,000 ppm) |
| Stress Corrosion Cracking (SCC) Resistance | Exceeds NACE MR0175/ISO 15156 requirements for H2S environments |
| High Strength | 2x yield strength vs. 316L stainless steel, enabling thinner/lightweight designs |
| Weldability | Low carbon content (0.03% max) prevents sensitization during welding |
| Dimensional Precision | CNC-machined sealing faces (Ra ≤ 3.2 μm) ensure leak-free ASME B16.5 RF |
Oil & Gas:
Chemical Processing:
Power Generation:
Desalination Plants:
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 HOLDING GROUP is one of the largest Procurement, Engineering & Contracting Group companies in China. Our group branch company and factory have been already approved by : ABS, LR, DNV, GL, BV, CCS, KR, PED 97/23/EC, AD2000-WO, GOST9941-81, CCS, TS, CNNC, ISO9... YUHONG HOLDING GROUP is one of the largest Procurement, Engineering & Contracting Group companies in China. Our group branch company and factory have been already approved by : ABS, LR, DNV, GL, BV, CCS, KR, PED 97/23/EC, AD2000-WO, GOST9941-81, CCS, TS, CNNC, ISO9...
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