Carbon Steel Bar and Rod

Order your carbon steel bar from Us

  • Available Standards— ASTM, AISI, JIS, ISO, EN, BS, GB,
  • Surface— Mild steel plain finish, color coated, black painted, PE coated, Galvanized ,etc
  • Custom process— Bending, Welding, Decoiling, Cutting, Punching, Polishing , or as your Request
  • Size— 10mm – 400mm (OD), 1m-12m (length) , or as your Request
  • Size Tolerance— ±3%

Get Your Metal Cut-to-Size!

We’ll cut your order to your exact specifications. No need to buy full lengths! Contact us

Carbon steel bar is stocked in flat, hexagonal, angle, round and, square at Qinghe Steel and we have an extensive range of cold rolled bar carbon steels – from low carbons, medium carbons, and up to high carbons.


Carbon steel bar and rod is ideal for many industrial products and applications where strength and durability are required. Characteristics of carbon steel bars are based on the carbon content. Carbon steel bar is stocked in flat, hexagonal, angle, round and, square at Qinghe Steel and we have an extensive range of cold rolled bar carbon steels – from low carbons, medium carbons, and up to high carbons. We work on expanding our capabilities in the production of materials that earn such a heavy demand from varying industries.


  • Carbon Steel Hexagonal Bar
  • Carbon Steel Square Bar Rod
  • Carbon Steel Round Bar Rod
  • Carbon Steel Flat Bar
  • Carbon Steel Angle Bar

We have the capability to help you create a custom carbon steel bar drawing for processing. To request a processing quote for an existing CAD drawing, please attach the print in an email. Our service email is

What is the difference between carbon steel rods and bars?

Carbon steel rods and bars are both solid, long metal products used in a variety of applications. The primary difference between them is in their shape and size.

Carbon steel rods are typically round in shape and have a diameter of less than 1 inch. They are often used for machining, as well as in construction, automotive, and other industries.

Carbon steel bars, on the other hand, come in a variety of shapes, including round, square, rectangular, and hexagonal. They are generally larger than rods, with diameters ranging from 1 inch to several inches, and are often used in construction, manufacturing, and other heavy-duty applications.

In terms of composition, both carbon steel rods and bars are made from a type of steel that contains carbon as the main alloying element, along with other elements such as manganese and silicon. The carbon content of the steel can vary from low to high, depending on the intended use of the product.

Carbon Steel Bar/Rod Application

Carbon steel bar is a kind of general-purpose steel bar that offers excellent formability and weldability, being used in a wide variety of applications including auto manufacturing, shipbuilding, aerospace industry, petrochemical plants, auto-power and wind-engine, metallurgical machinery, precision tools, etc.

- Auto manufacturing

- Aerospace industry

- Auto-power and wind-engine

- Metallurgical machinery

At Qinghe Steel, we supply a wide range of carbon steel bars and rods for sale for a variety of applications. Contact us today for your project.


Why Buy Carbon Steel Bar?

The carbon steel round bar is strong and resistant to corrosion. Carbon steel stock is one of the most widely used materials in the construction industry.

One of the most important advantages is its high strength-to-weight ratio. This makes it one of the best materials to use for structural purposes.

The properties that make carbon steel bars so desirable are their ability to resist corrosion, high tensile strength, and ductility.

What grades are commonly used?
Medium carbon grades like 1018 and 1045 are most widely produced due to good machinability and strength properties required for general engineering purposes.

What sizes can be supplied?
Bar stock is available in diameters ranging from small fractions of an inch up to 12″ or larger depending on the machine collar sizes. Custom diameters are possible on special orders.

What surface finishes are provided?
Standard finishes include rough, turned, polished, ground smooth. Special treatments such as copper plating can be done based on application needs.

How are carbon steel bars produced?
Heating the steel to rolling temperature and rolling it through successive collars reduces the cross section of bar as per required diameter tolerance.

What industries utilize steel bars?
Machinery, automotive, mining equipment, construction, agricultural implement manufacturers use carbon steel bars extensively for components.

How is bar quality validated?
Through chemical analysis and mechanical property tests as per ASTM A29, A108 specification requirements during production as well as finished bar inspection.

How are bars packaged and transported?
Packaged in bundles of 50 or 100 lbs, bars are transported through trucks, trains, ships. Special containers are used for international shipping.

How is bar pricing impacted?
Factors like prevailing steel prices, order quantity, alloy surcharges, delivery terms affect the bar selling price along with machining costs if required.

Can bars be machined and processed further?
Yes, carbon steel bars can undergo operations like turning, drilling, milling, grinding, bending as per the required fabricated component design.