• ISO 9001:2015 CERTIFIED

Flat-Rolled

Carbon Steel.

Delivered reliably.

Since 1987, Dunloy Steel has been a trusted partner to manufacturers across America — delivering precision-processed steel with speed and consistency.

  • Melted and Manufactured in the USA
  • Tonnage in Stock
  • Quick and Responsive
  • Melted and Manufactured in the USA
  • Tonnage in Stock
  • Quick and Responsive

U.S.

Mill Direct Supply

ISO 9001:2015

ISO Certified Since 2002

100%

Customer Focused

Since 1987

Family Owned & Operated

EST. 1987 • CARNEGIE, PA

A partner you can count on.

Dunloy Steel, Inc. is a distributor of flat-rolled carbon steel located in Carnegie, Pennsylvania. For nearly four decades, we have built our reputation on reliability, competitive pricing, and exceptional responsiveness.


We purchase directly from leading U.S. mills, maintain strategic inventory of "to-spec" material, and process orders with short lead times. Our customers value us because we treat their business like our own.

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QUALITY MATERIALS

Our Products

Premium flat-rolled carbon steel in a wide range of grades and finishes.

Hot Rolled

Standard and pickled hot rolled steel for structural, fabrication, and manufacturing applications.

Available Grades

  • A36 - HSLA GR80
  • C1006 - C1074

Finishes

  • HR-Black
  • HRPO

Cold Rolled

High-precision cold rolled products for applications requiring tight tolerances and superior surface finish.

Available Grades

  • C1006 – C1074

Temper

  • CQ
  • Full-Hard

Coated

Protective coated steels offering excellent corrosion resistance for harsh environments.

Available Grades

  • Hot Dipped Galvanized
  • Galvanneal
  • Electrogalvanized
  • Aluminized

PRECISION PROCESSING

Capabilities

Processing and value-added services to deliver exactly what your operation needs.

Precision Slitting

Tight tolerance slitting with excellent edge quality for demanding applications.

Cut-to-Length

Accurate length cutting with minimal burr and superior flatness.

Edging

Custom edge conditioning and deburring to your exact specifications.

Roll-Formed Tubing

Roll forming capabilities for custom tubular products.

Pickling

Acid pickling for clean, scale-free surfaces ready for coating or painting.

Annealing

Controlled atmosphere annealing to achieve desired mechanical properties and hardness.

Cold Reduction

Precision cold rolling to achieve specific gauges and surface finishes.

Warehousing

Strategic inventory management and just-in-time delivery programs.

TRUSTED ACROSS AMERICA

Industries We Serve

We supply critical flat-rolled steel components to manufacturers who cannot afford delays or quality issues.

Agriculture

Automotive

Construction

Energy

Heavy Equipment

Industrial Racking

Mining

Tubing

Service Centers

Waste

THE DUNLOY DIFFERENCE

Why manufacturers choose us

01

Mill Direct Relationships

We buy direct from U.S. mills. This means better pricing, reliable supply, and the ability to move quickly when you need material fast.

02

Inventory That Works

We anticipate your needs. Large quantities of to-spec material are kept in stock so you get rapid turnaround without carrying excess inventory.

03

Responsive Partnership

We know your business depends on ours. Our team is reachable, proactive, and dedicated to solving problems before they become issues.

LET’S TALK STEEL

Request a Quote

Tell us what you need. Our team typically responds within one business day.

Contact Us

Dunloy Steel, Inc.

LOCATION

800 N Bell Avenue

Carnegie, PA 15106

TOLL FREE

800-489-1610

Monday – Friday

8:00 AM – 5:00 PM ET

Download our current ISO 9001:2015 Certification

Valid through November 2026