1018 Cold Rolled ASTM A108 Carbon Steel Square Bar is a versatile and reliable material widely used in manufacturing and construction applications. This medium-carbon steel grade offers an excellent balance of strength, machinability, and cost-effectiveness. Known for its good weldability and formability, this square bar is ideal for general-purpose projects requiring moderate strength and wear resistance. The material is commonly used in shaft production, pins, rods, and various machinery parts. Its uniform structure ensures consistent performance across applications, while the square profile makes it suitable for precise fitting and alignment needs. This steel grade contains approximately 0.18% carbon content, providing better mechanical properties than lower carbon steels while maintaining good workability. The square bar format allows for easy handling and efficient material usage in both production and custom fabrication work.