1018 steel cnc material

At a Glance


Lead Time

Finish Options




3 days (rush)
5-7 days (standard)
Depending on the alloy, hand polishing, bead blasting, powder coating, and sanding are options.
ISO 2768
fixtures and mounting plates

About the Material

1018 Steel is a mild, low carbon steel that is machinable, weldable and useful where high-strength is not required, such as fixtures and mounting plates. It is magnetic and heat treatable.

Material Properties

Steel - 1018 Low Carbon

Yield Strength (tensile)

Elongation at Break



60,000 psi
Rockwell B90
7.87 g/㎤
0.284 lbs / cu. in.

Material Finish

Design Recommendations

Min Wall Thickness

Min End Mill Size

Min Drill Size

Max Part Size


Radii : Depth

0.5 mm
0.8 mm
(0.03 in)
0.5 mm
(0.02 in)
1200 x 500 x 152 mm [x,y,z] (mill) 

152 x 394 mm 
[d,h] (lathe)
Square profile, full radius, dovetail profiles
Depth must not exceed 12x drill bit diameter.
For end mills, depth must not exceed 10x tool diameter.

Cost Saving Tip

To reduce costs, limit the number of part setups, the number of inspection dimensions or tight tolerances, and deep pockets with small radii.

Related Resources

Engineer's Guide to CNC Machining for Prototyping Hardware
Fictiv CNC Material Datasheet