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Prototype, Test, Teach


Experiment with new materials by ordering Protoboxes or Sample Packs


Product Details, Specifications, and Technical Information

See Cold Roll Steel Tolerances

It's a metal variety box filled with a mixture of different shapes, sizes, and weights in the metal of your choice. Designed with prototyping, testing, and tinkering in mind, most pieces in the Protobox are smaller than 12" x 6". Each Protobox is different, based on the materials available at the time your box is packed.

shape Image
Dimension Name Specification
Alloy 1018
MTR Availability No
Material Carbon Steel
Shape Protobox
Custom Cut Warehouse 0
Pack Thicknesses sizing varies
Weight/Lineal Foot
5.0 pounds
Please note that this data is to be used ONLY FOR REFERENCE, NOT FOR DESIGN, and by using it,you agree that any decisions you make regarding materials for your project are at your own discretion.
Mechanical Properties
Property Value
Density g/cm^3 8
Ultimate Tensile Strength KSI 64
Yield Tensile Strength KSI 54
Brinell Hardness 500 kg load 126
Elongation % in 2 in. 15
Shear Strength KSI 43
Rockwell Hardness B Scale 71
Melting Point °F 2590 - 2670
Machinability % 78
Electrical Conductivity % IACS 7
Chemistry Information: 1018 Carbon Steel
Element Percentage
C 0.14 - 0.2
Fe 98.81 - 99.26
Mn 0.6 - 0.9
P 0.04 max
S 0.05 max
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