China Nickel Alloy Pipe manufacturer


TOBO Alloy Group is a mature, steady and energetic high-tech company, specializing in manufacture of high-temperature alloys and corrosion resistant alloys, such as Hastelloy, Haynes, Monel, Inconel, Incoloy and nickel.


March 17, 2022

DIN 1.4462 ASTM A182 F347 DIN 1 4571316l stainless steel flange astm B16.5 STEEL

ASTM A182 F51 UNS S31803 DIN 1.4462 ASTM A182 F347 DIN 1 4571316l stainless steel flange astm B16.5 STEEL

PIPE FLANGEWN0101.jpgWN02.jpg

Standard ASME/ANSI B16.5/16.36/16.47A/16.47B, MSS S44, ISO70051, JISB2220, BS1560-3.1, 7S-15, 7S-43, 605, EN1092
Type WELDING NECK FLANGE SPECIAL FLANGE: According to the drawing Picture

Nickel Alloy: ASTM/ASME S/B366 UNS N08020, N04400, N06600, N06625, N08800, N08810, N08825, N10276,N10665,N10675, Monel 400 & 500, Inconel 600 & 625, Incolloy 800, 825, Hastelloy C22,C276

Super Stainless Steel: ASTM/ASME S/A182 F44, F904L, F317L,


Stainless steel: ASTM/ASME S/A182 F304, F304L, F304H, F316, F316L, F321, F321H, F347H

Duplex Steel: ASTM A182 F51, F53, F55

Alloy Steel: ASTM/ASME S/ A182 F11, F12, F22, F5, F9, F91

ASTM A350 LF1; LF2; A350 LF3 ;LF4;LF6;LF8


Copper Alloy:ASTM AB564 , NO6600/ Alloy 600, NO6625/ Alloy 625, Alloy 690, Alloy 718


Inconel Alloy Steel:ASTMAB564, NO8800/Alloy800, NO8810/Alloy800H, NO8811/Alloy 800HT


Carbon Steel: ASTM/ASME S/A105, ASTM/ASME S/A350 LF2, ASTM/ASME S/A694/A694M, F42, F52, F56, F60, F65, F70....ASTM/ASME S/A350 LF2, ASTM/ASME S/A694/A694M, F42, F52, F56, F60, F65, F70....

Dimension (150#,300#,600#): DN15-DN1500
900# : DN15-DN1000
1500#: DN15-DN600
2500#:D N15-DN300
Marking Supply Logo + Standard + Size(mm) + HEAT NO +or as your requirement
Test Chemical Component Analysis, Mechanical Properties, Metallurgical Analysis, Impact Testing, Hardness testing , Ferrite Testing, Intergranular corrosion testing, X-ray Inspection (RT), PMI, PT, UT, HIC & SSC test, etc. or as your requirement
Brand TOBO
Certificates 3.1. (Any third party certificate should be clarified before order)


WELD NECK FLANGES also called a tapered hub flange or high-hub flange, is a kind of flange that can relocate stress to the pipes, ensuring a decrease in high-stress concentration at the bottom of the flange.

WELD NECK FLANGES are flanges that designed to be jointed to a pipeline by butt welding. The neck, or hub, transmits stresses to the pipeline, reducing stress concentrations at the base of the weld neck flange. The bore of the Weld-Neck flange matches the bore of the pipe, reducing turbulence and erosion.


related flange WN.jpg

ADVANTAGE WN01.jpg08.jpg09.jpg

Contact Details