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Duplex Steel Butt Weld Fitting ASTM A815 WP31803/ WPS32750 / S32760 STEEL NIPPLE NPT,THREAD END
YUHONG GROUP is professional for Duplex and Suer Duplex pipe/tube/fitting/flange for many projects . Every we export around 4M usd of duplex and suer duplex fitting and flange for more than 30 countries.
UNS S31803/2205 is a duplex grade with a ferritic-austenitic microstructure. The alloy consists of around 40-50% ferrite in the annealed condition. The duplex microstructure has the high strength of the ferritic grades whilst retaining the corrosion resistance of the austenitic grades. It is not uncommon to see the metal used as a practical solution to chloride-induced stress cracking, which is the achilles’ heel of stainless steel.
Pipe & Pipe Fittings
Seamless Pipe in Titanium Grades 1, 2, 5, 7, 9 and 12
Seamless Pipe in Duplex UNS S31803 & S32205
Seamless Pipe in Super Duplex UNS S32750 & S32760
Seamless Pipe in 6 Moly UNS S31254, N08925 & N08926
Seamless Pipe in Copper Nickel UNS C70600 C70620 C7060X C7150 C71520 C71640
Welded Pipe in Duplex UNS S31803 & S32205
Welded Pipe in Super Duplex UNS S32750 & S32760
Welded Pipe in 6 Moly UNS S31254, N08926 & N08925
Welded Pipe in Copper Nickel UNS C70600 C70620 C7060X C7150 C71520 C71640
Seamless & Welded Butt-weld fittings in Titanium Grades 1, 2, 5, 7, 9 and 12
Seamless & Welded Butt-weld fittings in Duplex UNS S31803 & S32205
Seamless & Welded Butt-weld fittings in Super Duplex UNS S32750 & S32760
Seamless & Welded Butt-weld fittings in 6 Moly UNS S31254, N08925 & N08926
Seamless & Welded Butt-weld fittings in Copper Nickel UNS C70600 C70620 C7060X C7150 C71520 C71640
| Butt Weld Fittings | Long & Short Radius Elbows |
| Long & Short Radius Return Elbow | |
| Concentric & Eccentric Tees | |
| Equal & Reducing Tees | |
| Stub Ends | |
| End Caps |
| High Pressure Fittings | 150# 300# 6000# 9000# | Socket Weld Fittings Threaded Fittings | Elbows |
| Tees | |||
| Couplings | |||
| End Caps | |||
| Concentric & Eccentric SwageNipples |
| ANSI B.31.10 | Code for Pressure Piping | ANSI B.31.8 | Gas Transmission/Distribution Piping |
| ANSI B.31.3 | Petroleum Refinery Piping | ANSI B.36.10 | Standard for Wrought Steel Pipe |
| ANSI B.31.4 | Oil Transportation Piping | ANSI B.36.19 | Standard for Stainless Steel Pipe |
| ANSI B.31.5 | Refrigeration Piping Systems | ANSI B.16.10 | Valve Dimension Face & Ends |
| ANSI B.31.7 | Nuclear Power Piping | ANSI B.16.11 | Forged Fittings Socket Weld & Threaded |
Stainless Steel Tube, Pipe and Fittings Product Specifications
Stainless Steel Tube, Pipe and Fittings Product Specifications
Stainless Steel Tube and Fittings
| Standard | Description |
| ASTM A213/A213M | Seamless ferritic and austenitic alloy steel boiler, superheater and heat exchanger tubes. |
| ASTM A249/A249M | Welded austenitic steel boiler, superheater, heat exchanger and condenser tubes. |
| ASTM A269 | Seamless and welded austenitic stainless steel tubing for general purposes. |
| ASTM A270 | Seamless and welded austenitic stainless steel sanitary tubing. |
| ASTM A450/A450M | General requirements for carbon, ferritic alloy and austenitic alloy steel tubes. |
| ASTM A554 | Welded stainless steel mechanical tubing. |
| ASTM A791/A791M | Welded unannealed ferritic stainless steel tubing. |
| ASTM A789/A789M | Seamless and welded ferritic/austenitic stainless steel tubing for general service. |
| AS1163 | Structural steel hollow sections (dimensional tolerances). |
| AS1528, Parts 1 to 4 | Tubes (stainless steel) and tube fittings for the food industry. |
| Higher austenitic | |
| ASTM B674 | UNS N08904 welded tube. |
| ASTM B677 | UNS N08904 seamless pipe and tube. |
Stainless Steel Pipe
| Standard | Description |
| ASTM A312/A312M | Seamless and welded austenitic stainless steel pipe. |
| ASTM A358/A358M | Electric-Fusion-Welded (EFW) austenitic chromium-nickel alloy steel pipe for high temperature service. |
| ASTM A409/A409M | Welded large diameter austenitic steel pipe for corrosive or high temperature service. |
| ASTM A731/A731M | Seamless and welded ferritic and martensitic stainless steel pipe. |
| ASTM A790/A790M | Seamless and welded ferritic/austenitic stainless steel pipe. |
| ASTM A450/A450M | General requirements for carbon, ferritic alloy and austenitic alloy steel tubes. |
| ASTM A530/A530M | General requirements for specialised carbon and alloy steel pipe. |
| JIS G3459 | Stainless steel pipes. |
| ANSI/ASME B36.10M | Welded and seamless wrought steel pipe. |
| ANSI/ASME B36.19M | Stainless steel pipe. |
| Higher austenitic | |
| ASTM A673 | UNS N08904 welded pipe. |
| ASTM A677 | UNS N08904 seamless pipe and tube. |
Stainless Steel Pipe Fittings and Flanges
| Description | |
| ASTM A182/A182M | Forged or rolled alloy steel pipe flanges, forged fittings and valves and parts for high temperature service. |
| ASTM A403/A403M | Wrought austenitic stainless steel piping fittings. |
| ASTM A815/A815M | Wrought ferritic, ferritic/austenitic and martensitic stainless steel piping fittings. |
| AS 2129 | Flanges for pipes, valves and fittings |
| ANSI/ASME B1.20.1 | Pipe threads, general purpose (inch). |
| ANSI B16.5 | Steel pipe flanges and flanged fittings. |
| ANSI B16.9 | Factory-made wrought steel butt-welding fittings. |
| ANSI B16.11 | Forged steel fittings socket-welding and threaded. |
| ANSI B16.25 | Butt-welding ends. |
| MSS SP43 | Wrought stainless steel butt-welding fittings. |
| BS21 | Threading. |
| ISO 4144 | Stainless steel fittings threaded to ISO 7-1. |
MSS SP-43: Wrought Stainless Steel Butt Welding Fittings
BS 1640: Steel Butt Welding Pipe Fittings for petroleum Industry
part 1-Wrought Carbon and ferritie Alloy Steel Fittings
BS 1965: Butt Welding Pipe Fittings for pressure purpose part
1-Carbon Steel & Austenitic Stainless Steel
ASTM B366 - 10a Standard Specification for Factory-Made Wrought Nickel and Nickel Alloy Fittings
ASTM A403: Wrough Autenitic Stainless Steel Pipe Fittings
ASTM A815: Wrough Ferritic, Ferritic/Autenitic and martensitic
Stainless Steel Pipe Fittings
IPS-M-PI-150: Standard for Flanges and Fittings
Materials
Austenitic Stainless steel
ASTM A403 WP304, 304L, 304H, 310S, 316, 316L, 316H, 321, 321H, 347,
347H, 317, 317L
ASTM A182 F304, F304L, F304H, F310S, F316, F316L, F316H, F321,
F321H, F347, F347H, F348
Ferritic Steel
ASTM 815 WP27-33-429-430-430TI-446 (Duplex)
Duplex 2205, Duplex SAF 2205, Duplex SAF2205, Duplex UNS S31803,
Din 1.4462 EN 10088 F51
Duplex SAF2205 SANMAC, URANUS 45N, PREN=33, PREN=34, PREN=35,
PREN=36 DIN 1.4462
Duplex-2205 UNS S31803 / UNS S32205 DIN-1.4462 EN 10088-3 PREN =
33, PREN = 34, PREN = 35
Ferritic/Austenitic Steel
UNS S331803 (Duplex)
UNS S32750-S32760-32550 (Superduplex)
Super Duplex 2507, Super Duplex SAF 2507, Super Duplex SAF-2507,
Super Duplex UNS S32750 F53
Super Duplex SAF 2507 UNS S32750 DIN 1.4410 EN-10088 URANUS 47N(+)
PREN=41 Minimum
Super Duplex UNS S32760 F-55 ASTM A182 F55 SA182 F-55 DIN 1.4501
UNS 32760 F55
Martensitic Steel ASTM 815 WP410
