Flange Catalogs

Choose one of the following catalogs for viewing

Request A Catalog

Catalog Contents
Standard Catalog
21.4 MB
Standard Catalog of our Flanges
Expanded Carbon
21.2 MB
Expanded version of our Carbon Steel Flanges
Carbon Metric
18.6 MB
Catalog of our Carbon Steel Metric Flanges
304L Stainless
21.8 MB
Catalog of 304L Stainless Steel Flanges
316L Stainless
21.8 MB
Catalog of 316L Stainless Steel Flanges
304L Stainless Metric
19.3 MB
Catalog of 304L Stainless Steel Metric Flanges
316L Stainless Metric
19.3 MB
Catalog of 316L Stainless Steel Metric Flanges
SAE Flange Adapters
5.67 MB
Catalog of Carbon Steel SAE Flange Adapters
Quick Reference Guide
1.94 MB
Downloadable Quick Reference to Special Flanges - used for general discussions with MAIN's engineers
Quick Reference Guide
Interactive Quick Reference Guide - find your geometry, connection type & style to view a catalog page

MAIN Manufacturing is a leading flange manufacturer in the United States.

MAIN manufactures components to SAE, ISO, Japanese, German, British and many company standards with nearly 7,000 special blueprints going back 60 years. Most non-stock items are available in a few days. MAIN stocks 200+ tons of raw steel and STAINLESS to 15” X 15”. Our staff can be of great assistance with up to 40 years experience and working on SAE, NFPA, and ISO standards committees.

MAIN Manufacturing Products, Inc. has manufactured hundreds of “special flanges” which do not fit any established bolt hole spacing. We welcome the opportunity to quote on any particular flange not shown in either the catalog or on-line. With 60 years of manufacturing, the flange you need could easily be on our shelves but not cataloged. This includes flanges to ISO 6162, ISO 6164, JIS, or DIN standards and/or flanges with blind, ISO 6149, BSPP, BSPT, or butt weld ports. Run tees, branch tees, wyes, and crosses are also available. For more options call 800-521-7918.