Carbon Steel Grade Selector

Select a suitable carbon steel grade based on application, strength, hardness, weldability, machinability, forming and heat-treatment requirements.

Application Requirements

Recommended Grades

Enter your requirements and click Select Carbon Steel Grades.

Grade Comparison

Recommendations will appear here.

Common Carbon Steel Grades

Grade Carbon range General character Typical applications
1010 ~0.08–0.13% Very low carbon, highly formable Sheet, formed parts, light fabrication
1018 ~0.15–0.20% Low-carbon, weldable and machinable General machine parts, shafts, fabrication
1020 ~0.18–0.23% Low-carbon engineering steel General components, shafts, welded parts
1045 ~0.43–0.50% Medium-carbon, higher strength and hardness Shafts, gears, pins, machine parts
1050 ~0.48–0.55% Medium/high-carbon, harder than 1045 Wear parts, shafts, machine components
1060 ~0.55–0.65% High-carbon, high hardness potential Springs, blades and wear applications
1095 ~0.90–1.03% High-carbon, high hardness potential Springs, blades and high-wear parts

How the Selector Works

Each grade receives a compatibility score based on: • Application • Required strength • Weldability • Machinability • Hardness • Forming • Heat treatment • Cost priority The grades are ranked from the highest compatibility score to the lowest. The result is a preliminary material-selection recommendation. Always verify the final grade against the required material specification and mechanical properties.
Carbon steel performance depends strongly on grade, product form, section size, heat treatment, condition and manufacturing process. This selector does not replace engineering calculations or the applicable material standard.

Frequently Asked Questions

What is the easiest carbon steel to weld? Low-carbon grades such as 1010, 1018 and 1020 are generally easier to weld than higher-carbon grades.

What is the difference between 1018 and 1045? 1018 has much lower carbon and is generally easier to weld and form. 1045 provides higher strength and hardness potential but requires more care during welding.

Which carbon steel is good for shafts? 1045 is a common choice for shafts and similar machine components when greater strength and hardness are needed.

Which carbon steel is easiest to machine? Low- to medium-carbon steels can generally be machined readily. Actual machinability depends on grade, condition, tooling and cutting parameters.

Which carbon steel is best for gears? Medium-carbon steels such as 1045 may be suitable for some gears, while carburizing grades may be preferable where a hard wear-resistant surface and tougher core are required.

Which carbon steel is best for forming? Very low- and low-carbon grades generally provide better cold-forming characteristics than medium- and high-carbon grades.

Can 1045 be welded? 1045 can be welded, but its higher carbon content makes welding more demanding than low-carbon steels and appropriate procedures may be required.

Which carbon steel can reach high hardness? Higher-carbon grades such as 1050, 1060 and 1095 have greater hardness potential through suitable heat treatment.

Is carbon steel corrosion resistant? Carbon steel generally has limited corrosion resistance and normally requires suitable protection when exposed to moisture or corrosive environments.

Can this selector guarantee the correct grade? No. It provides a preliminary recommendation based on the selected requirements. Final selection should be verified against the applicable standard, design loads, operating conditions and required properties.