Stainless Steel 321/321H Flanges

Stainless Steel 321/321H Flanges

High Nickel Alloy Flanges

Alloy Steel Flanges

SS UNS S32100 Pipe Flanges, ANSI B16.5 SS 321 Orifice Flange, Stainless Steel 321 Pipe Flanges, 150# ANSI SS 321 Flanges, SS 321 Spacer, Stainless Steel 321 Slip On Flanges Supplier in Mumbai, India.

Neonox Overseas is one of the best exporter, suppliers and stockiest of Stainless steel 321/ 321H flanges based in Mumbai, India. Stainless steel 321/ 321H flanges are made of using good quality raw material, which helps the customer to use it for a longer period. Stainless steel 321/ 321H flanges are available in different sizes and shapes, one can easily get it as per their own specifications. Stainless steel 321/ 321H flanges are best for heat resistant, mostly it is used in the temperature range of 1000-1600F.

Titanium is the differentiating factor between stainless steel 304 & stainless steel 321, which further helps to reduce carbide precipitation during welding. Stainless steel 321 slip on flanges have the best oxidation-resistant up to 1600F. Stainless steel 321H weld neck flanges have the best intergranular corrosion as it is stabilized against the weld heat-affected zone (HAZ). stainless steel 321 socket weld flanges also helps to resist polythionic acid stress corrosion cracking. One of the main features of stainless steel 321 blind raised flanges is that it has excellent strength and better corrosion resistance. Stainless steel 321 lap joint flanges contain 18% chromium, 8%nickel and required portion of titanium.

Stainless steel 321 flanges are used in refinery equipment and high-temperature chemical process. Stainless steel 321H socket weld flanges are applied in expansion joints and thermal oxidizers. Stainless steel 321H lap joint flanges are used in aircraft piston engine manifolds and exhaust stacks. Stainless steel 321 threaded flanges are also used for power generation and petrochemicals. Stainless steel 321 flanges are used for seawater equipments and off-shore oil drilling companies.

SS Werkstoff No 1.4541 Socket Weld Flanges, Stainless Steel 321 RTJ Flange, Stainless Steel 321 Nippolet Flangs, ASTM A182 SS F321 Threaded Flanges, 321 SS WNRF Flanges Exporter, SS 321 Blind Flanges, SS 321 Weld Neck Flange Dealer in India.

Stainless Steel 321/321H Flanges Stock Size Range and Specifications


Stainless Steel 321/321H


ASTM A182 / A240, ASME SA182 / SA240
ANSI / ASME B16.5, B16.47 Series A & B, B.16.48, BS4504, BS10, DIN, EN-1092, MSS SP44


1/2" - 48"
Class / Pressure Rating
150 Class, 300 Class, F92 Class, 900 Class, 1500 Class, 2500 Class, PN6, PN10, PN16, PN25, PN40, PN64, etc.
Slip on Flanges (SORF), Threaded Flanges, Weld neck Flanges (WNRF), Blind Flanges, Socket weld Flanges, Lap Joint Flanges, Ring Type Joint Flanges, Spectacle Blind Flanges, Spacer Ring Flanges, Long weld Neck Flanges, Nipo Flange, Nipolet Flanges, Plate Flanges, Flat Flange, Orifice Flanges, Forged Flanges,Stainless Steel Flanges
Flange Face Type
Flat Face (FF), Raised Face (RF), Ring Type Joint(RTJ)

Other Forms / Products Availables

SS 321/321H SORF Flanges
ASTM A182 SS 321/321H WNRF Flanges
321/321S Stainless Steel Pipe Flanges
SS 321/321H Blind Flanges
SS 321/321H Spacer Ring Flanges
UNS S32100 Nipolet Flanges
UNS S32100 Ring Type Joint Flanges
SS 321/321H Nipolet Flanges
WNR. 1.4841 Flat Flange
WNR. 1.4845 Nipo Flange
SS 321/321H Long weld Neck Flanges
SS 321/321H Lap Joint Flanges