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
0.21 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 1/4" Tool Steel Square Bar O1 is commonly used for rolls, punches, shear knives, food processing knives, and gauges due to its excellent dimensional stability during heat treatment and general purpose tool steel properties.

This product is available in standard lengths of 18 and 36 inches, but it does not support custom cut options from the warehouse.

O1 tool steel offers a high machinability rating of 95, making it easier to machine compared to stronger tool steels like A-2 or D-2, which typically have lower machinability.

Yes, a Material Test Report (MTR) is available for the 1/4" Tool Steel Square Bar O1, providing assurance of its chemical and mechanical properties.

The bar weighs approximately 0.21 lb per unit, has an ultimate tensile strength of 105 ksi, a yield tensile strength of 58 ksi, and a shear strength of 58 ksi, offering a good balance of strength and dimensional stability.

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