Tool Steel Square Bar O1 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.
Height
1
Max Length
36
Metal Type
Tool Steel
Shape
Bar-Square
Yes
Eniteo Vendor ID
3145
Custom Cut Warehouse
0
Alloy
O1
Production Method
Ground Oversize
Weight/Lineal Foot
3.49 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 O1 tool steel square bar is ideal for rolls, punches, shear knives, food processing knives, and gauges due to its excellent dimensional stability during heat treatment and good general-purpose attributes.

Yes, the bar is available in lengths up to 36 inches and can be custom cut, although the custom cut warehouse availability is currently zero, so check with the seller for specific cut options.

O1 tool steel has a high machinability rating of 95, making it easier to machine compared to harder tool steels like A-2 or D-2, which also helps reduce distortion during heat treatment.

Yes, MTR reports are available for this product, providing assurance of its chemical and mechanical properties.

The bar is offered in 18-inch and 36-inch lengths, weighing approximately 5.1 lb and 10.2 lb respectively, with prices ranging from $188.10 to $310.92.

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