Super Duplex Steel Flanges S31803 S32750 S32760 API Flanges
Super Duplex Steel Flanges S31803 S32750 S32760 API Flanges has high yield strength and higher corrosion resistance, and is widely used in shipbuilding, petroleum, chemical industry, medicine, aerospace and other fields. The annealing yield strength of Duplex 2205 and Super Duplex 2507 stainless steel flanges is twice that of stainless steel flange, of which Super Duplex 2507 stainless steel flanges has the most outstanding performance.
Super Duplex Steel Flanges A182 F44 F51 F53 F55 F60 API Flanges
Super Duplex Steel Flanges API 6A TYPE 6B & 6BX is a kind of flange product for pipe connection and pipe plugging. The product manufacturing shall comply with the process specification ASTM A336 / A226 for hot forging to ensure the appearance dimension and pressure bearing performance of the product.
Cangzhou Enfei Pipe Equipment Co., Ltd. selects raw materials produced by the best factories in China, including Yongxing special steel, AVIC Shangda, Huaxin Lihua, qingtuo group, Laiwu Iron and steel, Valin Iron and steel, Taiyuan Iron and steel, Shanghai Baosteel, Baosteel and other China’s best steel groups.
The above raw material manufacturers have passed ABS and DNV GL, BV, LR, CCS, NKclass, KR, RINA and RS classification societies can issue EN10204 3.2 and EN10204 3.1 material list certificates.
Super Duplex Steel Flanges API 6A TYPE 6B & 6BX are widely used in ship building, oil pipeline and other engineering construction. Cangzhou Enfei Pipe Equipment Co., Ltd. offers competitive pricing and added conveniences on flange accessories like flange packs, gaskets, flange connectors, and flange bolts.
There are many similarities between Forged Super Duplex Steel Flanges API 6A TYPE 6B & 6BX and ASME/ANSI B16.5 flange size，ASME / ANSI B16.5 weld neck flange 600Lb 900lb 1500Lb corresponding to API 6a 2000psi 3000psi 5000PSI pressure ,Nominal size range(inches) ASME/ANSI B16.5 1/2˝-24˝corresponding API 6A 1 13/16˝-11˝.
In the above Super Duplex Steel Flanges API 6A TYPE 6B & 6BX production materials, our dual phase steel meets the requirements of A182 F53 / F55 PREN (% Cr + 3.3% Mo + 16% N) ≥ 40, F51 / F60 N = 0.14-0.2% and PREN (% Cr + 3.3% Mo + 16% N) ≥ 34. Industrial Steel Flanges Test Certificates: Cangzhou Enfei Pipe Equipment Co., Ltd. offer its Products with Third Party Inspection also. The Inspection Agency can be nominated by clients or Dynamic Forge & Fittings can be arrange the TPI by World reputed Agencies like Bureau Veritas, DNV, LLOYDS, SGS and many other.
Super Duplex Steel Flanges API 6A TYPE 6B & 6BX Specification
| Size | 1 13/16˝ to 30˝ | |||||
| Products | API Weld Neck Flanges,API Blind Flanges | |||||
| Class | 2000PSI，3000PSI,5000PSI,10000PSI,15000PSI,20000PSI | |||||
| Flange Face Type | Ring Joints Face(RTJ) | |||||
| Surface Treatment | Antirust Paint,Oil Black Paint,Yellow Transparent,Zinc Plated,Cold and Hot Dip Galvanized | |||||
| Manufacturing process | Cutting,Heat treatment,Die Forging/Free Forging,CNC Machining | |||||
| Manufacturing Standards | API 6A TYPE 6B & 6BX Flanges | |||||
| Duplex & Super Duplex Steel | 2205 (UNS No. S31803/S32205)，2507 (UNS No.S32750/1.4410)，UNS No. S32760/1.4501，254SMO（UNS No. S31254），ASTM A182 F44, F45, F51 , F53, F55, F60, F61 | |||||
Super Duplex Steel Flanges S31803 S32750 S32760 Chemical Composition
| Grade | UNS | Abbreviation | C% | Mn% | Si% | Cr% | Ni% | Mo% | S% | P% | N% |
| A182 F51 | S31803 | 2205 | 0.03 max | 2 max | 1 max | 21.0-23.0 | 4.5-6.5 | 2.5-3.5 | 0.015 max | 0.035 max | 0.1-0.22 |
| A182 F60 | S32205 | 0.03 max | 2 max | 1 max | 21.0-23.0 | 4.5-6.5 | 2.5-3.5 | 0.015 max | 0.035 max | 0.1-0.22 | |
| A182 F53 | S32750 | 2507 | 0.03 max | 2 max | 1 max | 24.0-26.0 | 6.0-8.0 | 3.0-4.5 | 0.015 max | 0.035 max | 0.24-0.35 |
| A182 F55 | S32760 | Zeron 100 | 0.03 max | 1 max | 1 max | 24.0-26.0 | 6.0-8.0 | 3.0-4.0 | 0.01max | 0.03max | 0.03max |
| A182 F44 | S31254 | 254SMO | 0.02max | 0.03max | 0.7max | 19.5-20.5 | 17.5-18.5 | 6-7 | 0.01max | 0.03max | 0.18-0.25 |
Super Duplex Steel Flanges S31803 S32750 S32760 API Flanges Tensile Properties Testing
Super Duplex Steel Flanges S31803 S32750 S32760 Tensile Properties at Room Temperature
| Grade | UNS | Abbreviation | Tensile strength [MPa] | Yield strength, min，≥[MPa] | Reduction of area, min,≥% | Dichte |
| A182 F51 | S31803 | 2205 | 640-920 | 450 | 22 | 7.8 |
| A182 F60 | S32205 | 640-880 | 450 | 22 | 7.8 | |
| A182 F53 | S32750 | 2507 | 580-800 | 550 | 20 | 7.81 |
| A182 F55 | S32760 | Zeron 100 | 750-895 | 550 | 25 | 7.81 |
| A182 F44 | S31254 | 254SMO | 650-850 | 300 | 35 | 8 |
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