With our cutting-edge solutions, encompassing the latest advancements in technology, materials, and design, we can provide products that meet the highest performance, safety, and efficiency standards.
API International's commitment to our customers and product offerings has enabled us to become a trusted partner for the Energy, Power Generation, and Oil industries. At API International, we pride ourselves on delivering a comprehensive range of high-quality products, including steel flanges, expansion joints, grooved fittings, custom-machined components, and OEM products. Our dedication to precision engineering and reliability empowers businesses operating in these dynamic sectors to optimize their operations.
With our cutting-edge solutions, encompassing the latest advancements in technology, materials, and design, we can provide products that meet the highest performance, safety, and efficiency standards. Explore the options below to discover how API International is not just a supplier but a strategic ally, driving success in the ever-evolving landscape of energy and power.
We begin by understanding your goals, whether it's reducing cost, improving quality, or launching a new product. Together, we define technical and commercial requirements to ensure full alignment from the start.
With worldwide manufacturing resources, API International provides both standard and custom flange solutions. Our network of facilities and in-house expertise allow us to deliver the right fit for your needs, whether it’s off-the-shelf or built to specification.
Our engineers work closely with customers to refine designs, reduce costs, and ensure manufacturability. We stay connected with your team throughout to keep progress clear and efficient.
After final review of samples, production begins. Our team oversees quality and delivery coordination to ensure smooth execution and traceability from start to finish.






At API International, our custom manufacturing capabilities set us apart. With an in-house machine shop, we transform your designs into precision parts quickly. From single prototypes to full production runs, we deliver cost‑effective pricing, dependable performance, and rapid turnaround. Flexible material options and rigorous quality checks ensure consistency from part to part.
99.5% order accuracy rate
Our boots-on-the-ground approach ensures close collaboration with our suppliers. Every flange, valve, and fitting undergoes rigorous inspection and thorough documentation, ensuring consistent performance and reduced field issues.
Active customers in all 50 states + Canada and Mexico
When your schedule is on the line, knowing our U.S. warehouses are stocked and orders ship same-day gives you peace of mind, so you can focus on the task at hand, not the clock.
700+ machined-to-spec parts created each year
Collaborate directly with our engineers to bring your unique specifications to life, ensuring every component performs as if it were built with your project in mind.
1,500+ unique customers served over 45+ years
Our dedicated account team partners with you from quote to delivery, answering questions and offering expert advice so you can make confident decisions and avoid costly delays.