Materials & Alloys for Flanges and Fittings
From carbon steel to super duplex, nickel alloys and titanium, Teshi Group manufactures flanges, forged fittings and butt weld fittings in the materials capital projects specify, with heat-number traceability, PMI and EN 10204 3.1 / 3.2 certification.
904L & 254 SMO
SS 904L (ASTM A182 F904L, UNS N08904, 1.
ViewDuplex stainlessDuplex 2205
Duplex 2205 flanges and fittings to ASTM A182 F51 (UNS S31803) and F60 (S32205), A815 fittings, with ferrite and A923 testing.
ViewSuper duplex stainlessSuper Duplex
Super duplex 2507 (ASTM A182 F53, UNS S32750) and UNS S32760 (F55, Zeron 100 type) flanges and fittings with PREN ≥ 40 and ASTM A923 testing.
ViewTitaniumTitanium
Titanium flanges and fittings in Grade 1, 2 (UNS R50400), 5 (Ti-6Al-4V), 7 and 12 to ASTM B381 and B363 for chlor-alkali, seawater and marine service.
ViewNickel alloysInconel
Inconel alloy 600 (N06600), 625 (N06625) and 825 (N08825) flanges to ASTM B564 and fittings to ASTM B366 for high-temperature and acid service.
ViewNickel alloysHastelloy, Monel & Alloy 20
Hastelloy C-276 (N10276), C-22 (N06022), Monel 400 (N04400) and Alloy 20 (N08020) flanges and fittings to ASTM B564, B462 and B366 for severe corrosive service.
ViewCopper-nickelCopper-Nickel
Copper-nickel 90/10 (C70600) and 70/30 (C71500) flanges and fittings for shipbuilding, naval and seawater piping, to EEMUA 145/146 and ASTM.
ViewAustenitic stainlessAustenitic stainless
Austenitic stainless steel flanges and fittings to ASTM A182 and A403: F304/304L, F316/316L, F317L, F321, F347 and F310.
ViewAlloy steelChrome-moly alloy steel
Chrome-moly alloy steel flanges to ASTM A182 F5, F9, F11, F22 and F91 with A234 WP fittings, for boilers, power and hot-blast service.
ViewCarbon steelCarbon & low-temp steel
Carbon steel flanges and fittings: ASTM A105N, low-temperature A350 LF2/LF3 and high-yield ASTM A694 F42–F70 pipeline flanges with A234 WPB and MSS SP-75 fittings.
ViewFlanges by material
Pipe fittings by material
FAQ
Materials: common questions
Which materials does Teshi Group manufacture flanges and fittings in?
Carbon, low-temperature and high-yield steels; chrome-moly alloy steels; austenitic, super austenitic, duplex and super duplex stainless steels; nickel alloys including Inconel, Hastelloy, Monel and Alloy 20; titanium grades 1, 2, 5, 7 and 12; and copper-nickel 90/10 and 70/30.
Do you supply exotic alloys with full traceability?
Yes. Every piece carries a hard-stamped heat number traced to the mill certificate, with PMI on alloy and stainless grades and EN 10204 3.1 certificates; 3.2 with third-party inspection on request.
Ready to build to spec?
Share your drawing, bill of materials or technical requirements with the Teshi team.