Low-Carbon Steel Disc
9/16" Diameter, 1" Long, Cold Worked





Relative Length | Short |
Length | 1" |
Diameter | 9/16" |
Diameter Tolerance | -0.002" to 0" |
Fabrication | Cold Worked |
Yield Strength | 54,000 psi |
Hardness | Rockwell B70 |
Hardness Rating | Medium |
Maximum Hardness After Heat Treatment | Rockwell C60 |
Specifications Met | ASTM A108 |
Appearance | Plain |
Application | Multipurpose |
Certificate Form | Digital |
Certificate Type | Material Certificate with Traceable Lot Number |
Coefficient of Thermal Expansion | 7.1 × 10^-6 |
Elongation | 15% |
Heat Treatable | Yes |
Length Tolerance Type | Plus |
Material | Low-Carbon Steel |
Material Composition | |
Carbon | 0.13% to 0.20% |
Iron | Remainder |
Manganese | 0.30% to 0.90% |
Phosphorus | 0.04% Max. |
Silicon | 0.15% to 0.30% |
Sulfur | 0.50% Max. |
Maximum Temperature | Not Rated |
Minimum Temperature | Not Rated |
Performance | High Strength, Formable, Machinable, Ultra Weldable |
Shape | Rod |
Steel Grade | 1018 Low-Carbon Steel |
Straightness Tolerance | Not Rated |
Tolerance Rating | Undersized |
Warning Message | Physical and mechanical properties are not guaranteed. They are intended only as a basis for comparison and not for design purposes. |
Country of Origin | United States |
DFARS Compliance | Specialty Metals COTS-Exempt |
Export Control Classification Number (ECCN) | EAR99 |
REACH Compliance | REACH (EC 1907/2006) (02/04/2026, 253 SVHC) Compliant |
RoHS Compliance | RoHS 3 (2015/863/EU) Compliant |
Schedule B Number | 721550.0015 |
U.S.–Mexico–Canada Agreement (USMCA) Qualifying | Yes |
Also known as mild steel, low-carbon steel is easy to machine, form, and weld. It's widely fabricated into low-strength fasteners, pins, and axles. You can surface harden this material for added wear resistance.
If you don't see the size you're looking for, check out our Made-to-Order Low-Carbon Steel Rods.
Cold Worked—Cold-worked products have a finished look and quality. The cold-working process gives the steel consistent strength, hardness, and dimensions throughout.
The information in this 3-D model is provided for reference only.

























