DN50(2")-Welding Neck Flange WN CL600 RF SMOOTH SCH 10S DUPLEX SS ASTM A182 F53 F60 SOUR SERVICE ASME B16.5
F53 duplex stainless steel is 2507 duplex stainless steelUNS S32750.
Product name: 2507 Duplex SteelUNS S32750
Common name: 2507, UNS S32750, NAS 74N, F53, W.-Nr. 1.4410
Executive standard: ASTM A240/ASME SA-240, ASTM A276, ASTM A182/ASME SA-182, ASTM A312/ASMES A312
Main components: carbon (C) ≤0.03, manganese (Mn) ≤2.0, nickel (Ni) 4.5～6.5, silicon (Si) ≤1.0, chromium (Cr) 21.0～24.0, molybdenum (Mo) 2.5～3.5, nitrogen ( N) 0.08～0.20
Physical properties: 2507 Duplex steel Density: 8.03g/cm3, Melting point: 1300-1390°C, Magnetic: None
Heat treatment: Insulation between 1000-1052℃ for 1-2 hours, rapid air cooling or water cooling.
Mechanical properties: tensile strength: σb≥795Mpa, yield strength σb≥550Mpa: elongation: δ≥15%, hardness ≤310 (HB)
Products range:
| Steel Flanges |
| Material | Carbon steel | ASTM A105. ASTM A350 LF1. LF2, CL1/CL2, S235JRG2, P245GH |
| P250GH, P280GHM |
| Stainless steel | ASTM A182, F304/304L, F316/316L |
| Alloy steel | ASTM A182 A182 F12,F11,F22,F5,F9,F91etc. |
| Standard | ANSI | Class 150 Flanges-Class 2500 Flanges |
| DIN | 6Bar 10Bar 16Bar 25Bar 40Bar |
| JIS | 5K Flanges-20K Flanges |
| UNI | 6Bar 10Bar 16Bar 25Bar 40Bar |
| EN | 6Bar 10Bar 16Bar 25Bar 40Bar |
| TYPE | 1.Welding neck Flange 2.Slip on |
| 3.Blind flange 4.Long welding neck flange |
| 5.Lap joint flange 6.Socket welding |
| 7.Threaded flange 8.Flat flange |
| Surface | Anti-rust oil, clear lacquer, Black lacquer, Yellow lacquer,hot-dipped Galvanized,electrical galvanized |
| Connection | Welding, Threaded |
| Technical | Forged, Casting |
| Size | DN10-DN3600 |
| Package | |
| 1.Standard export packaging (Plywood Case Outside,Plastic Cloth Inside). |
| 2:As Customers' Requirements |
| Heat Treatment | Normalizing, Annealing, Quenching+Tempering |
| Certificate | API,ISO9001:2008;ISO14001:2004 |
| Applications | Water works, Shipbuilding industry, Petrochemical & Gas industry, Power industry, Valve industry,and general pipes connecting projects etc. |
Use environment:
The higher chromium and molybdenum content of 2507 dual-phase steel makes it have strong resistance to organic acids such as formic acid and acetic acid. 2507 dual-phase steel also has strong corrosion resistance to inorganic acids, especially those containing chlorides. Compared with 904L, 2507 duplex steel has stronger corrosion resistance to diluted sulfuric acid mixed with chloride ions. 904L is an austenitic alloy, designed to resist pure sulfuric acid corrosion. 316L can not be used in hydrochloric acid environment, it may be subject to local corrosion or overall corrosion. 2507 duplex steel is used in diluted hydrochloric acid environment, and has strong resistance to pitting corrosion and crevice corrosion.
Application areas:
Petroleum and natural gas industry equipment; offshore platforms, heat exchangers, underwater equipment, fire fighting equipment; chemical processing industry, utensils and pipeline industry; desalination, high-pressure RO equipment and submarine pipelines; energy industry such as power plant desulfurization and denitrification FGD system, industrial scrubbing system , Absorption tower; mechanical parts (high-strength, corrosion-resistant, wear-resistant parts).
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