About API Flange
Precision-engineered flanges for the world's most critical piping systems.
Our Story
API Flange provides steel pipe flanges for the industries that keep infrastructure running. Oil and gas, waterworks, power generation, petrochemical, and general industrial piping systems all depend on flanges that meet spec and show up on time. That is what we do.
We carry an extensive inventory of API 6A, ASME B16.5, ASME B16.47, and AWWA flanges across a wide range of sizes, pressure classes, and material grades. When you need something specific, we quote fast and ship faster. Stock items move in 1-3 business days.
Our customers are procurement engineers, project managers, and plant operators who already know what they need. We speak the same language and respect your time. You will get a price, a lead time, and an honest answer on the first call.
Our Mission
To be the most reliable source for steel pipe flanges in the industry. Fast quotes, deep inventory, technical expertise, and documentation you can trust. We succeed when our customers get exactly what they need, when they need it.
Our Values
These core principles guide every decision we make and define how we serve our customers.
Quality
Every flange meets rigorous specifications. Our commitment to quality means zero compromises on material selection, production precision, or testing procedures.
Accuracy
Every spec, every dimension, every material grade verified. We take technical accuracy seriously because our customers depend on it.
Partnership
We succeed when our customers succeed. Responsive technical support, flexible ordering, and collaborative problem-solving define our customer relationships.
Speed
Fast quotes, fast shipping, fast answers. In this industry, time is money and we do not waste yours.
What We Bring to the Table
Deep inventory, fast turnaround, and the technical knowledge to match the right flange to your application.
Deep Stock Inventory
Extensive inventory across standard and non-standard sizes, pressure classes, and material grades. When we say we have it, we have it.
Fast Turnaround
Industry-leading turnaround on stock and custom orders. Call (281) 484-8325 for project-specific timelines.
Technical Expertise
We know flanges. Our team speaks the language of specs, pressure classes, and material grades. Ask us the hard questions.
Full Documentation
MTRs, Certificates of Conformance, and full traceability documentation available with every order.
Material Range
Carbon steel, stainless steel, duplex, alloy steel, and specialty materials for any service condition.
Reliable Delivery
Domestic and international shipping with logistics support to get flanges where they need to be, on time.
Based in Houston. Ships Everywhere.
Headquartered in Pearland, TX in the heart of the Houston industrial corridor. Direct access to major shipping lanes and proximity to the Gulf Coast energy sector.
Pearland, Texas
Located in the Greater Houston area, we are positioned at the center of the U.S. energy and industrial market. Quick access to the Port of Houston, major highway systems, and air freight facilities means your flanges move fast.
Documentation & Traceability
Every flange ships with full documentation. Mill Test Reports (MTRs), Certificates of Conformance, and heat/lot traceability are standard. Third-party inspection available on request.
Domestic & International Shipping
Industry-leading turnaround on stock and custom orders. Domestic and international logistics support with clear freight terms and delivery tracking. We handle ExWorks, FOB, and delivered pricing.
Responsive Quoting
Most quotes returned the same day. Price, lead time, and availability upfront. No runaround, no waiting for callbacks.
Certifications & Compliance
Full compliance with international standards and regulatory requirements ensuring your confidence in our products.
ASME B16.5 / B16.47
Full compliance with ASME standards for pipe flanges and fittings, NPS 1/2 through NPS 60.
API 6A / 16A
American Petroleum Institute standards for high-pressure oil and gas flange applications.
AWWA C207 / C228
American Water Works Association standards for municipal water utility flange applications.
BABA/AIS Compliance
Buy America Act and American Iron and Steel compliant flanges available for federally-funded infrastructure projects.
Full Material Traceability
Mill Test Reports (MTRs), Certificates of Conformance, and heat/lot traceability with every order.
DIN EN 1092-1
European standard metric flanges available for international and ISO system applications.
Ready to Partner With Us?
Experience the API Flange difference. Contact our team to discuss your flange requirements and discover how we can support your success.