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.
Metal Type
Tool Steel
Shape
Bar-Square
Yes
Eniteo Vendor ID
3145
Custom Cut Warehouse
0
Weight/Lineal Foot
0.16 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

The O1 tool steel square bar is commonly used for rolls, punches, shear knives, food processing knives, and gauges due to its excellent dimensional stability during heat treatment and good general-purpose tool steel properties.

This product is available in a 36-inch length and does not have custom cut options from the warehouse, so it is sold as a precision ground bar at the specified length.

The O1 tool steel square bar offers 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, a Material Test Report (MTR) is available for this O1 tool steel square bar, providing assurance of its chemical and mechanical properties.

The product weighs approximately 0.51 lb for the 36-inch length and is currently in stock and available for immediate shipment.

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