Duplex Flanges
Texas Flange supplies Duplex Flanges in 2205 (F51) and super duplex grades F53 and F55, across ASME B16.5 and ASME B16.47 Series A and B.
Inconel and super duplex flanges|Dimensions and weights|CAD and 3D drawings
For pricing and lead time, just send your size, class, facing, and grade on over to sales@texasflange.com or give us a holler at 281-484-8325.
An austenitic-ferritic stainless variant dat's got a higher stress corrosion cracking resistance compared to your regular austenitic 304 and 316 stainless, but it comes with a bit lower toughness and impact strength.
This category of material includes grades 2205, F51, F53, and F60. Duplex stainless has gotten mighty popular over the years 'cause of its excellent chemical and mechanical properties compared to your basic stainless counterparts.
The granular structure of duplex is a ferrite-austenite hybrid with a superior strength to weight ratio in comparison to 304 or 316.
It balances the weldability of an austenitic with a pure ferritic and retains decent mechanical toughness in applications with exposure to colder ambient temperatures, I tell you what.
Offshore and seawater applications are a mighty common use for this type of steel due to its excellent stress corrosion crackin' properties. Therefore, y'all will often find duplex in desalination and pressure vessel equipment located down in port cities.
Duplex’s premium mechanical and chemical properties are offset just a bit 'cause it's mighty tough to form. Dese grades are excellent for fixed service simple flange connections, but a little less so when you're tryin' to form a complex metallic shape.
Lucky for us, workin' duplex into complex and rounded structures ain't much of an issue in structural steel, seein' as folks mostly prefer simple mild steel for jobs dat don't rust.
Texas Flange can provide y'all with a mighty fine cost and lead time option for duplex steels, seein' as we offer 'em in forged and plate variants. Duplex plate is becomin' a real popular option for longer service fluid works applications, and rightfully so, I reckon.
Feel free to holler at us for a quote right quick.
Products
Texas Flange stocks a wide variety of flanges in all sizes and specifications, yessir.
ANSI Flanges
ASME Flanges
AWWA Flanges
Pipe Flanges
Industrial Flanges
Oil & Gas Industry Flanges
Custom Flanges
Petrochemical Flanges
Texas Waterworks Flanges
Ring Joint Flanges
Large Industry Standard Flanges
Metric System Flanges
Plumbin' And Mechanical Industries Flanges
Industrial Pumps, Valves And Vessels
Manufacturin' Industries Flanges
Heating Systems Industries Flanges
Flange Food And Beverage Industries Flanges
Questions Folks Ask Us (FAQs)
The difference between a swivel flange and a lap joint flange is dat a swivel flange consists of two separate components: a rotatin' ring flange and a welded hub or collar dat's attached to the pipe.
A lap joint flange also got two parts, but it uses a stub end rather than a welded hub, and its backin' flange is loose rather than fully spinnin' like a swivel flange.
The specification of a duplex 2205 flange includes materials UNS S31803 or UNS S32205, with standards like ASTM A182 and ASME SA182 for forged flanges. Dese flanges are available in various pressure ratin's under ANSI/ASME B16.5, includin' classes 150, 300, and 600.
The chemical composition typically includes 22-23% chromium, 4.5-6.5% nickel, 3.0-3.5% molybdenum, and 0.14-0.20% nitrogen, givin' it excellent resistance to pittin', crevice corrosion, and stress corrosion crackin'.
Duplex steel is used in industries dat need high strength and corrosion resistance. Folks use it all over the oil and gas sector for pipelines, pressure vessels, and offshore platforms, yessir.
The chemical processin' industry uses it for heat exchangers, tanks, and reactors, while the marine and shipbuildin' industries utilize it for propeller shafts, seawater coolin' systems, and structural components.
