Tool Steel Rectangle Bar O1 Oversize offers excellent dimensional stability during heat treatment, and otherwise decent attributes. O1 is an oil-hardening, general purpose tool steel. While not as strong or wear resistant as A-2 or D-2, it experiences significantly less distortion during the heat treating process. It is typically used in rolls, punches, shear knives, food processing knives, and gauges.

MTR MTR Available
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Product Information

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Please note:

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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.
Thickness
0.3125
Width
1.25
Max Length
36
Metal Type
Tool Steel
Shape
Bar-Rectangle
Yes
Eniteo Vendor ID
3145
Custom Cut Warehouse
0
Alloy
O1
Production Method
Ground Oversize
Weight/Lineal Foot
1.39 pounds
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Mechanical Properties

Density g/cm^3
8
Ultimate Tensile Strength KSI
105
Elongation % in 2 in.
20
Melting Point °F
2580 - 2660
Yield Tensile Strength KSI
58
Brinell Hardness 3000 kg load
177 - 212
Rockwell Hardness B Scale
88 - 95
Shear Strength KSI
58
Machinability %
95
Electrical Conductivity % IACS
7
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Chemistry Information : O1 Tool Steel

Element
Percentage
Element
Percentage
Element
Percentage
C
0.94
Fe
96.56
Cr
0.5
Mn
1.2
Si
0.3
W
0.5

This tool steel rectangle bar measures 0.3125" thick and 1.25" wide, made from O1 alloy tool steel. It is ground oversize for dimensional stability and available in lengths up to 36".

Yes, O1 tool steel offers excellent dimensional stability during heat treatment, making it ideal for applications like rolls, punches, shear knives, food processing knives, and gauges where minimal distortion is critical.

Yes, MTR reports are available for this product, providing assurance of material composition and quality.

The bar is available in two lengths: 18" with a shipping weight of 2.0 lbs, and 36" with a shipping weight of 3.99 lbs.

O1 tool steel has a machinability rating of 95, making it relatively easy to machine. It is commonly used for general-purpose tooling such as punches, shear knives, and gauges.

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