Carbon Steel Round Rod

Carbon Steel Round Rod

A carbon steel round rod is a common component in general purpose projects for its high durability and fatigue resistance. Also known as carbon steel round bars or steel rounds, they are often used for creating rotating components or in the construction of buildings and bridges.

A pile of carbon steel round tubing.
steel, industry, metal, industrial, factory, stainless, manufacturing, production, pipe, construction, iron, pipes, pipeline, tube, background, engineering, metallic, heavy, manufacture, machine, technology, profile, stack, plant, aluminum

Properties of Carbon Steel Round Rods

Unlike traditional steels, carbon steel has a high load-bearing capacity, allowing it to withstand extreme pressure over extended periods. Different material grades determine the steel’s performance in specific applications. Each grade indicates the metal’s composition, alloys, and other qualities.

12L14 (Free Machining Carbon Steel Rod)

Engineered with added lead and sulfur, 12L14 carbon steel round rod offers outstanding machinability. This type of steel rod allows for tighter tolerances and smoother finishes, reducing tool wear and improving efficiency. 12L14 steel is ideal for components used in high-speed turning, drilling, and threading, such as screws, bolts, and studs.

AISI 1018 (Cold Rolled Carbon Steel Rod)

AISI 1018 steel rods are typically cold-rolled to improve finish, strength, and machinability compared with A36 steel. Because of their weldability and formability, they are commonly used to make spindles, pins, shafts, and rods.

ASTM A36 (Hot Rolled Carbon Steel Round Bar)

The ASTM A36 hot-rolled carbon steel round bar is known for its high yield strength and versatility. Because it undergoes only the hot-rolling process, A36 steel round rods are more economical and easier to fabricate for large-scale use. This carbon round bar is especially suited for heavy structural applications.

Applications of Carbon Steel Round Rod

Carbon steel is a strong, durable material that is well-suited for environments with limited exposure to corrosive elements. Because of their cylindrical shape, carbon steel rods are more flexible and able to withstand dynamic stresses more than square bars.

shop floor

No Order Too Small in Alcorbra Metals

At Alcobra Metals, we understand that every project is different. That’s why we offer a wide selection of carbon steel rod stock in standard and custom lengths, with the flexibility to buy in any quantity.

Shop Quality Carbon Steel Round Bars at Alcobra Metals Today

Orders placed before 3 PM PST ship within 24 hours via UPS. Choose from a variety of round bar dimensions and steel grades. Order today to get carbon steel rods and other specialty metal products delivered quickly to your doorstep. View our shipping policy for full details.

Carbon Steel Round Rod FAQs

ASTM A36 hot-rolled and 1018 cold-rolled steel round bars typically have a melting range of 1425°C to 1540°C (2600°F–2800°F). This consistent thermal property supports a wide range of welding and forming applications. However, 12L14 steel is not recommended for welding due to its high sulfur and lead content.

The average density of carbon steel rod stock is approximately 0.284 pounds per cubic inch. This consistent density allows engineers and procurement professionals to quickly estimate part weight, calculate shipping requirements, and determine load-bearing capacity.

The hot-rolled process involves shaping steel at elevated temperatures by passing it through rollers to form a finished round bar.

Cold rolling is a secondary forming process performed at room temperature after initial hot rolling. It adds strain hardening to the metal bar, increasing its tensile strength and dimensional accuracy.

Scroll to Top