Carbon Steel Round Bar (Steel Rod)

Carbon Steel Round Bar, also known as a Steel Rod, is manufactured from high-quality carbon steel and offers excellent mechanical strength, toughness, machinability, and weldability. It is widely used in construction, machinery manufacturing, automotive engineering, shipbuilding, energy, petrochemical, and general industrial applications.Available in a wide range of grades, diameters, and lengths, our carbon steel round bars are produced in accordance with international standards such as ASTM, AISI, DIN, EN, BS, GB, and JIS, ensuring reliable performance and consistent quality for structural and machining applications.

Product Specifications

Product Features

• High tensile and yield strength

• Excellent toughness and impact resistance

• Good machinability and weldability

• Superior dimensional accuracy

• Excellent wear resistance

• Easy to cut, forge, and heat treat

• Stable mechanical properties

• Suitable for machining and structural applications

• Available in various grades and sizes

Available Material Grades

GB Standard

Q195, Q215, Q235A, Q235B, Q255, Q275, Q345B, Q345C, Q345D, Q390, Q420, Q460, Q500, Q550, Q620, Q690

ASTM Standard

1010, 1020, 1025, 1030, 1035, 1040, 1045, 1050, 1055, 1060, 1080, A36, A53, A106

EN Standard

S185JR, S235JR, S275JR, S355JR

JIS Standard

SS330, SS400, SS490, SS540, S10C, S20C, S25C, S30C, S40C, S45C, S55C, S58C

DIN Standard

ST33, ST37, ST42, ST45, ST52

Mechanical Properties

Carbon steel round bars provide:

• Excellent load-bearing capacity

• High fatigue resistance

• Good impact toughness

• Reliable strength under dynamic loading

• Excellent machinability for precision components

Mechanical properties vary depending on the steel grade and heat treatment condition.