Nickel Alloy Flanges
In high-pressure petrochemical plants, offshore platforms, and severe corrosive environments, the integrity of a flanged joint is non-negotiable. 28Nickel manufactures and supplies premium forged nickel alloy flanges that provide absolute leak-proof performance, exceptional resistance to stress-corrosion cracking, and unwavering strength under extreme thermal cycling and pressure.
Available Alloy Grades for Flanges
To prevent galvanic corrosion and ensure a perfect match with your piping system, your flanges must be forged from the correct high-performance superalloy. We supply fully traceable flanges in the world's most demanding corrosion and heat-resistant grades.
Select a Grade to View Material Specs:
Browse Flange Types
Explore our primary flange configurations below. All flanges are precision-machined from high-quality Schmiedeteile to meet strict ASME, ANSI, and API dimensional and pressure class standards.
Weld Neck Flanges (WNRF / WNRTJ)
The ultimate choice for severe, high-pressure service. Features a long tapered hub that gradually transitions the thickness over to the pipe, minimizing stress concentration at the base of the flange.
Slip-On Flanges (SORF)
Designed to slip over the outside of the pipe before being fillet welded inside and out. Ideal for lower pressure systems and situations where alignment is critical and space is limited.
Blind Flanges (BLRF)
Solid forged disks used to safely blank off the ends of piping, valves, and pressure vessel openings. Essential for isolating systems during maintenance and sealing high-pressure lines.
Socket Weld Flanges (SWRF)
Designed for small-diameter, high-pressure piping (typically 2" and under). The pipe is inserted into the socket and secured with a single continuous fillet weld on the outside.
Our flanges are available in a variety of facing types, including Raised Face (RF), Flat Face (FF), und Ring Type Joint (RTJ) for extreme pressure applications.
| Specification Category | Details & Standards |
|---|---|
| Standard-Spezifikationen | ASME / ANSI B16.5 (Up to 24"), ASME B16.47 Series A & B (Large Diameter > 24"), API 6A, EN 1092-1, DIN |
| Pressure Classes | Class 150#, 300#, 600#, 900#, 1500#, and 2500# (Benutzerdefiniert high-pressure available) |
| Size Range | 1/2" NB to 48" NB (Custom massive forgings available upon request) |
| Manufacturing Process | Hot Forged and precision CNC Machined. Never cast, ensuring maximum structural density and fatigue resistance. |
| Complementary Products | Don't forget to order your Double-End Studs und Heavy Hex Nuts for assembly. |
Need High-Pressure Flanges?
From a single Inconel 625 RTJ blind flange to a bulk order of Hastelloy Weld Necks for a chemical plant, 28Nickel is your direct source. Send us your specification, pressure class, and alloy grade.
Request a Flange Quote