High-quality nickel alloy flanges for the oil & gas industry and chemical processing. Built for corrosive media, offshore exposure and demanding pressure classes.
From single pipe flanges to complete packages with pipes, fittings and flanges: delivered from stock or sourced to meet your lead time.
We are part of the GMI Global Group. That means stock supply plus flange manufacturing access. What you can expect:
Please send your inquiry and we’ll confirm availability and lead time
Designed for critical oil & gas piping
Built for demanding environments where standard materials fail.
Common pressure classes available from stock and on request.
Special Nickel and other grades available (spec-driven).
Flanges supplied as standalone or as part of a package with pipes and fittings.
Project-ready documentation with optional inspection routes.
Our current program includes the flange types and ranges below (availability is size/class dependent).
Maass supplies flanges in a wide range of material grades: from stainless steel and low alloys to (super) duplex, 6 Moly and special nickel, so you can match corrosion resistance, strength and temperature performance to the application.
For types: we cover the full spectrum from weld neck, slip-on, threaded and blind to socket weld, lap joint, orifice and reducing flanges, plus flanges made according to drawings for project-specific requirements.
Maass Global Group is a network of different flange production locations and stock / sales offices, able to offer a complete line of production in Stainless, Duplex, Low Alloy and Special Nickels in both small and large diameter sizes combined with a full range of pressure classes.
Nickel alloy flanges are typically specified where failure risk is high and documentation is required. We deliver with standard certification and can add inspection/testing on request. All flanges are produced by Wilhelm Maass GmbH.
We offer as standard:
Please send your inquiry. We’ll confirm availability from stock or propose the best sourcing route for your project.
