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


Alloy 1018
Production Method 0
MTR Availability No
Material Carbon Steel
Shape Protoboxes-Scrap
Custom Cut Warehouse 0
Availability Limit Two Per Customer

Weight/Lineal Foot

20.0 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.

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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