Flange Manufacturing
Manufacturing of stainless steel flanges up to 14 inches with full Quality Assurance Program and complete traceability, primarily serving commercial nuclear, power generation, and defense sectors requiring stringent standards.
MTS Forge has manufactured precision stainless steel pipe flanges since 1986, serving the commercial nuclear, power generation, and defense industries from our Coatesville, PA facility. With complete traceability, in-house heat treatment, and rough machining under one roof, we deliver flanges up to 14 inches built to your exact specifications and the most demanding quality standards.

From nuclear-grade flanges to custom contour forgings, we manufacture stainless steel components built to your tightest specifications.
Manufacturing of stainless steel flanges up to 14 inches with full Quality Assurance Program and complete traceability, primarily serving commercial nuclear, power generation, and defense sectors requiring stringent standards.
Custom-forged stainless steel products tailored to exact specifications, combining cutting-edge technology and time-honored craftsmanship to deliver components meeting the highest standards of durability and performance.
Special forgings in 316-L Stainless Steel for Section III applications, manufactured under a comprehensive Quality Assurance Program encompassing Mil I 45208, NCA 3800, and Mil Q9858 for precision-critical environments.
In-house normalizing heat treatment for forged flange components, producing refined uniform microstructure with improved tensile strength, enhanced toughness, and consistent mechanical properties throughout each part.
In-house rough machining applied directly after forging to bring flanges close to near-net shape, reducing lead times, eliminating separate vendor handling, and ensuring tight dimensional control from early in production.
Contour forging services in a diverse range of materials including duplex stainless steels such as Ferralium 255, demonstrating MTS Forge's capability to supply complex flange geometries beyond standard offerings.
At MTS Forge's Coatesville, PA facility, every stainless steel pipe flange is produced under a rigorous Quality Assurance Program with full material traceability — a requirement we've met for commercial nuclear customers for decades. Our in-house forging, heat treatment, and rough machining capabilities eliminate the hand-offs that introduce risk and delay. Whether your application demands 316-L for Section III compliance or a duplex grade for corrosive service, we have the metallurgical expertise and tooling inventory to deliver flanges up to 14 inches that perform reliably in the most demanding environments.

See how MTS Forge delivers precision stainless flanges that meet the strictest quality and traceability requirements.
Four decades of metallurgical expertise and in-house capability make MTS Forge the trusted source for critical stainless steel pipe flanges.
Founded by metallurgists, our team brings deep material science knowledge to every stainless flange we forge.
Our Quality Assurance Program provides complete traceability, meeting the rigorous demands of nuclear and defense procurement teams.
Forging, heat treatment, and rough machining under one Pennsylvania roof reduces lead times and lowers your total procurement cost.
Every flange is manufactured at our Coatesville, PA facility, supporting domestic supply chains for aerospace, defense, and power generation.
Four decades of leadership driven by metallurgy, precision, and unwavering commitment to quality.
Co-Founder
Stephen Carr co-founded Manufacturing & Technical Services, Inc. — MTS Forge — in 1986 alongside Edward Waddell, building the company from the ground up on the principles of quality and customer service. With a strong metallurgical background and extensive hands-on knowledge of forging practices, Stephen has been instrumental in shaping MTS Forge's technical capabilities and quality culture. His expertise spans a wide range of forging methods and alloy systems, directly informing the company's ability to manufacture precision stainless steel pipe flanges and special forgings to the strictest industry standards, including nuclear and defense applications. Under his co-leadership, MTS Forge has grown into a recognized leader in the American forging industry, serving critical sectors from its Coatesville, PA facility for nearly four decades.
Co-Founder
Edward Waddell co-founded MTS Forge in 1986 with a vision of delivering high-quality forging solutions to America's most demanding industries. Bringing a deep metallurgical background and comprehensive knowledge of forging practices, Edward has helped guide the company's investment in cutting-edge technology and in-house capabilities — including heat treatment, rough machining, and tooling design — that set MTS Forge apart from standard forging suppliers. His commitment to precision, traceability, and continuous improvement has been central to MTS Forge's reputation for reliability in commercial nuclear, aerospace, and power generation applications. Edward's leadership has ensured that every stainless steel flange and forged component leaving the Coatesville, PA facility reflects the craftsmanship and technical rigor the company was founded upon.
ASTM A182 is the primary standard governing forged or rolled alloy and stainless steel pipe flanges, fittings, and valves for high-temperature service. It specifies chemical composition, mechanical properties, heat treatment requirements, and testing procedures for grades including F304, F316, F316L, and duplex grades. MTS Forge produces flanges to meet ASTM A182 and related nuclear and defense specifications.
Speak directly with our metallurgical and forging experts for a tailored consultation.
Military inspection system standard for precision manufacturing quality.
Nuclear quality assurance requirement for commercial nuclear component suppliers.
Military quality program standard ensuring product reliability and process control.
Share your flange specifications, material requirements, and quantity. Our team in Coatesville, PA will review your requirements and respond with lead time and pricing information.
For immediate assistance, feel free to give us a direct call at (610) 857-3500. You can also send us a quick email at Fmicale@mtsforgepa.com
For immediate assistance, feel free to give us a direct call at (610) 857-3500. You can also send us a quick email at Fmicale@mtsforgepa.com