Yuhong Group Co.,Ltd
| Delivery Time | 7 DAYS |
| Packaging Details | Ply-wooden Case/Pallet |
| Product Name | Super Duplex Flange |
| Standard | ASTM A182 / ASME SA182 |
| Material | Super Duplex 2507 / F53 / UNS S32750 |
| Class | 150#, 300#, 600#, 900#, 1500#, 2500# |
| Type | PL, WN, SO, BL, SW, LWN |
| Face | RF, FF, RTJ |
| Application | Petroleum, Chemical, Onshore adn Offshore, Shipbuilding, etc |
| High Light | ASTM A182 F53 Super Duplex Steel Flange, Duplex 2507 / UNS S32750 Weld Neck Flange |
| Brand Name | YUHONG |
| Model Number | ASTM A182 F53 Super Duplex Weld Neck Flange |
| Certification | ISO, API , ABS, DNV, GL , LR, NK |
| Place of Origin | CHINA |
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Product Specification
| Delivery Time | 7 DAYS | Packaging Details | Ply-wooden Case/Pallet |
| Product Name | Super Duplex Flange | Standard | ASTM A182 / ASME SA182 |
| Material | Super Duplex 2507 / F53 / UNS S32750 | Class | 150#, 300#, 600#, 900#, 1500#, 2500# |
| Type | PL, WN, SO, BL, SW, LWN | Face | RF, FF, RTJ |
| Application | Petroleum, Chemical, Onshore adn Offshore, Shipbuilding, etc | High Light | ASTM A182 F53 Super Duplex Steel Flange, Duplex 2507 / UNS S32750 Weld Neck Flange |
| Brand Name | YUHONG | Model Number | ASTM A182 F53 Super Duplex Weld Neck Flange |
| Certification | ISO, API , ABS, DNV, GL , LR, NK | Place of Origin | CHINA |
| High Light | Super Duplex 2507 Flange ，ASTM A182 F53 Super Duplex Flange ，UNS S32750 Super Duplex Flange | ||
ASTM A182 F53 / UNS 32750 / Super Duplex 2507 Weld Neck Flange WNRF Flange
Specialized Corrosion Resistance of ASTM A182 F53 Super Duplex Steel Flange Weld Neck Flange
Erosion-Corrosion: Performs well in high-velocity seawater (e.g., subsea pipelines) due to combined resistance to mechanical wear and chloride attack.
Stress Corrosion Cracking (SCC): Resists SCC in chloride-rich, high-temperature environments (e.g., geothermal brines), unlike austenitic steels like 316L.
Hydrogen Embrittlement: Less prone than martensitic steels but requires caution in sour (H₂S) environments. Compliant with NACE TM0177 (tensile testing in H₂S).
Chemical Composition of ASTM A182 F53 Super Duplex Steel Flange Weld Neck Flange
| Weight% | C | Mn | P | S | Si | Cr | Ni | Mo | N | Cu |
| Super Duplex F53 | 0.03 max | 1.2 max | 0.035 max | 0.015 max | 0.8 max | 24-26 | 6-8 | 3-5 | 0.24-0.32 | 0.5 max |
Mechanical properties of ASTM A182 F53 Super Duplex Steel Flange Weld Neck Flange
| Alloy | Tensile Strength ksi | Proof Strength 0.2% ksi (min) |
Elongation (%) (min) |
Elongation (%) (min) |
| Super Duplex F53 Annealed Condition | 110-135 | 80 | 15 | 16 |
| ASME B16.5 Super Duplex 2507 Flanges | EN TYPE | DIN |
| WN – Welding Neck | EN-TYPE 11 | DIN 2631 |
| DIN 2632 | ||
| DIN 2633 | ||
| DIN 2634 | ||
| DIN 2635 | ||
| BL – Blind | EN-TYPE 05 | DIN 2527 |
| SO – Slip On | EN-TYPE 01/12 | |
| LJ – Lap Joint | EN-TYPE 02/04 | DIN 2641 |
| DIN 2642 | ||
| DIN 2655 | ||
| DIN 2656 | ||
| LWN – Long Welding Neck / Integral | EN-TYPE 21 | |
| Welding Collars | EN-TYPE 32/34 | |
| Super Duplex 2507 Flat Flange for Welding | DIN 2573 | |
| DIN 2576 | ||
| SW – Socket Weld | EN-TYPE 14 | |
| THR – Threaded | EN-TYPE 13 | DIN 2566 |
| Super Duplex 2507 Lap Joint Short Stub End | DIN 2673 | |
| Super Duplex Steel 2507 Orifice Flanges, Super Duplex SS 2507 Swivel Flanges, Spades, Spacer Rings Super Duplex 2507 F55 Spectable Blinds, API 6A, JIS B2220, VSM, NFE, BS10/BS4504, GOST | ||
Comparative Advantages Over Alternatives
vs. Duplex 2205 (F51/S32205): Higher Cr, Mo, and N content in 2507 provides superior pitting resistance (PREN 42 vs. 35) and strength (550 MPa vs. 450 MPa yield).
vs. Titanium: Lower cost (~50% less) and better thermal conductivity, though less resistant to reducing acids like HCl.
vs. Nickel Alloys (e.g., Hastelloy): More cost-effective for chloride environments but unsuitable for highly oxidizing conditions (e.g., hot nitric acid).
Application
NO CRACK (PT TEST)
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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