1018 Carbon Steel Bar for Machined Parts and Precision Components

When customers inquire about 1018 carbon steel bar, the discussion is usually not about structural strength. More often, they are looking for a material that machines cleanly, maintains dimensional consistency, and performs well in secondary processing.

Because of its low carbon content and balanced mechanical properties, 1018 is widely used for shafts, pins, bushings, fasteners, couplings, and precision-machined components.

For machine shops and equipment manufacturers, it remains one of the most practical carbon steel grades for everyday production.

Product Specifications

Item	Details
Product Name	1018 Carbon Steel Bar
Production Method	Hot Rolled, Cold Drawn
Diameter Range	6 mm – 500 mm
Length	3 m – 12 m
Surface Finish	Black, Bright Drawn, Peeled, Turned
Processing Service	Cutting, CNC Machining, Heat Treatment
Trade Terms	FOB, CFR, CIF, EXW
Payment Terms	T/T, L/C

Property

Typical Value

Yield Strength

≥ 370 MPa

Tensile Strength

≥ 440 MPa

Elongation

≥ 15%

Carbon (C)

0.15 – 0.20%

Manganese (Mn)

0.60 – 0.90%

Phosphorus (P)

≤ 0.040%

Sulfur (S)

≤ 0.050%

Why Many Machine Shops Prefer 1018 Steel

Better Surface Quality in Cold Drawn Condition

Many buyers choose cold drawn 1018 because it offers a smoother surface finish and tighter dimensional tolerances than standard hot rolled products. This can reduce machining allowances and save processing time.

Easy to Machine for High-Volume Production

For manufacturers producing large quantities of shafts, pins, spacers, and fittings, machining efficiency matters. 1018 is known for stable cutting performance and predictable machining behavior.

Suitable for Carburizing Applications

Although 1018 is not a high-carbon steel, it responds well to carburizing. This allows manufacturers to achieve a hard wear-resistant surface while maintaining a relatively tough core.

Good Balance Between Cost and Processability

Many engineering buyers do not need the higher strength of alloy steels. In those cases, 1018 provides a practical combination of machinability, availability, and material cost.

Common Applications

We specialize in custom machined parts for industrial machinery and automation, offering reliable quality and flexible production for all your precision component needs. Typical applications cover: