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
0.85 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 1/2" Tool Steel Square Bar O1 is commonly used in rolls, punches, shear knives, food processing knives, and gauges due to its excellent dimensional stability during heat treatment and general purpose oil-hardening properties.

Yes, this tool steel square bar is available in custom cut lengths, with standard options including 18 inches and 36 inches, allowing buyers to select the size that best fits their project needs.

O1 tool steel offers a high machinability rating of 95, making it easier to machine compared to harder tool steels like A-2 or D-2, while still providing good wear resistance and strength.

Yes, a Material Test Report (MTR) is available for the 1/2" Tool Steel Square Bar O1, ensuring traceability and compliance with quality standards.

The product is in stock with shipping weights of approximately 1.28 lb for the 18-inch length and 2.55 lb for the 36-inch length, ensuring prompt availability for orders.

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