Stainless Steel Flanges

Stainless Steel Flanges API International supplies stainless steel flanges manufactured to a variety of specifications. Available in grades 304, 304L, 316, and 316L, with specific materials available upon request. Our stainless steel flanges are fully machined to meet ANSI/ASME B16.5, ANSI/ASME B16.47, and AWWA C228. Our in-house machine shop can modify and customize flanges to meet […]
Flat Face Flanges

Flat Face Flanges API International manufactures flat-face flanges from a variety of materials, including ASTM A105 forged carbon steel and ASTM A182 forged stainless steels (such as 304, 304L, 316, and 316L). All flanges are fully machined to meet ANSI/ASME B16.5 and AWWA C207/C228. Custom options available upon request. Visit Our Store Custom Order Low-Pressure […]
Raised Face Flanges

Raised Face Flanges API International manufactures raised face flanges from ASTM A105 forged carbon steel and ASTM A182 forged stainless steels (including 304, 304L, 316, and 316L). All flanges are fully machined to meet ANSI/ASME B16.5 and AWWA C207 standards. Visit Our Store Make a Request Reliable Sealing Design What Are Raised Face Flanges? A Raised […]
Overbore Flanges

Large Bore Flanges API International large bore flanges are custom-machined for precise fit and reliable performance. Available in carbon steel, stainless steel, and specialty alloys, they meet ANSI, ASME, and AWWA standards. We also stock common sizes in AWWA Class D & E for quick turnaround time. Visit Our Store Custom Order Oversized Pipe Connections […]
Hub Flanges

Hub Flanges API International hub flanges are fully machined utilizing ASTM A105 forged carbon steel and ASTM A182 stainless steels (typically 304, 304L, 316, or 316L), meeting ANSI/ASME B16.5 and AWWA C207 Appendix B for Steel-Hub Flanges standards. Make a Request Reinforced Pipe Connections What Are Hub Flanges? Hub flanges are slip-on or weld-neck style […]
Confidentiality and Non-Disclosure Agreement
CONFIDENTIALITY AND NON-DISCLOSURE AGREEMENT This Confidentiality and Non-Disclosure Agreement (this “Agreement”) sets forth the terms and conditions that will apply to the treatment of certain confidential or proprietary information relating to API International (the “Company”) in connection with discussions between the Company and, (the “Recipient” and, together with the Company, the “Parties” and each individually […]
Lap Joint Flanges

Lap Joint Flanges API International lap joint flanges are made from A105 forged carbon steel and A182, 304/316 forged stainless steel. Designed for easy alignment and disassembly, they meet ANSI/ASME B16.5 standards and are available upon request. Visit Our Store Make a Request Stub-End Flange Assembly About Lap Joint Flanges Lap joint flanges, also known […]
Threaded Flanges

Threaded Flanges API International threaded flanges, also known as companion flanges, are machined from A105 forged carbon steel and 304/316 forged stainless steel. They conform to ANSI/ASME B16.5 standards and are available upon request. We can machine threads in any type of flange to suit your project’s needs. Make a Request Companion Flange Option About […]
Socket Weld Flanges

Socket Weld Flanges API International socket weld/counterbore flanges are fully machined from A105 forged carbon steel and A182 & 304/316 forged stainless steel and meet ANSI/ASME B16.5 standards. They are available upon request. Make a Request Compact Welded Pipe Joints What Are Socket Weld Flanges? Socket weld flanges, sometimes called counterbore flanges, are a type […]
Weld Neck Flanges

Weld Neck Flanges API International weld neck flanges are machined from A105 Forged Carbon Steel and A182 & 304/316 Forged Stainless Steel and meet ANSI/ASME B16.5 and B16.47 standards. They are available upon request. Make a Request Strong Pipe Joints Understanding Weld Neck Flanges Weld neck flanges are a type of connection recognized by their […]