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The leader in carbon steel fittings and flanges.

For over 70-years, Weldbend has been the leading the Carbon Steel Fitting and Flange industry. A third generation family business, Weldbend has grown from a small facility in Chicago to a 36-acre campus located in the Chicagoland area. Our campus hosts our corporate office and manufacturing facilities, as well as, our warehouse.

Made here. Ready everywhere.

Engineered for strength.
Built for trust.

Quality &
Innovation.

Innovative

As technology advances and customer needs evolve, steel fitting and flange manufacturers must continuously strive for innovation to stay competitive in the market.

Inventory

We understand the importance of having inventory to meet our customers' needs. We strive to maintain inventory levels to ensure our customers receive prompt order fulfillment.

Integrity

The fundamental value that guides Weldbend as a fitting and flange manufacturer. We hold ourselves to the highest ethical standards and prioritize integrity in all aspects of our business.

The Industry Leader

Since 1950

Extensive Inventory

Fast Delivery

Dedicated Customer Support

Certified Quality

ISO-9002

Family Run Business

3 Generations

Fittings

Weldbend's premium weld fittings, available in a wide range of sizes from 1/2" to 60" and various schedules including STD, XS, 40, 80, 160, and XXS.

Our weld fittings are manufactured to the highest industry standards, using high-quality materials and advanced manufacturing techniques, ensuring durability, reliability, and performance.  

Flanges

 Weldbend's top-of-the-line weld flanges, available in a wide range of sizes from 1/2" to 60" and various classes including 125, 150, 300, 600, 900, 1500, and 2500, adhering to ASME B16.5 or B16.47 standards.

Our weld flanges are crafted to exacting specifications, using premium materials and precision manufacturing processes to ensure superior quality and performance.

BUILT ON INTEGRITY. FORGED FOR GENERATIONS.

What you need. When you need it.

Starting with only the highest quality pipe and forgings, Weldbend produces both fittings and flanges made to the strict ASME standards. From start to finish, we maintain complete traceability for all the products produced at our factory so that you have peace of mind with the products you are buying.

TECHNICAL RESOURCES

Everything you need. Right where you need it.

Access catalogs, data sheets, certificates, and reference materials.

Conversions

Access product catalogs, specifications, certifications, engineering data, and more.

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Catalog Version #85

Complete product catalog featuring weld fittings, flanges, and custom components.

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Price Sheets

Quality documentation and certifications.

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ISO / PED Certificates

Current pricing for standard weld fittings, flanges, and related products.

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Field Reference App

ISO 9001 and PED certification documentation.

DOMESTIC MANUFACTURING. GLOBAL IMPACT.

Proudly Manufactured .....

Our state-of-the-art facility in Argo, Illinois is equipped with the latest technology and operated by a skilled team committed to excellence. Every Weldbend product is manufactured, inspected, and tested ......

Sq Ft Facility

Team Members

Products in Inventory

on-Time Delivery

Family Generations