Maass Global Group

Welcome to our website

Maass Flange Corporation is a fully integrated, forging and machining manufacturer of domestic and import stainless and alloy flanges with operations located in Houston, Texas and Acuna, Mexico. Maass has become the most diversified stainless and alloy flange manufacturer in the world by offering a complete line of both small and large diameter sizes, combined with a full range of pressure classes in many various grades of material.

Always striving to be the best we can be, holding quality certificates in ISO 9001:2008 and PED (Pressure Equipment Directive AD WO), it is our dedication to assure a superior product and service to all of our customers. We hope you enjoy your experience with Maass Flange and look forward to your continued business.

We welcome your questions that you may have, and look forward to a long professional relationship.


New Achievement of certification

API Spec 6A

See all our certificates in the quality area.

MTR Portal

MTR Portal