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
0.1875
Width
0.75
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
0.51 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 rectangle bar is sized at 3/16" thickness (0.1875") by 3/4" width (0.75") and is available in lengths up to 36 inches. It has a rectangular bar shape and is ground oversize for precise machining.

Yes, O1 tool steel offers excellent dimensional stability during heat treatment, making it ideal for applications such as rolls, punches, shear knives, food processing knives, and gauges.

Yes, a material test report (MTR) is available for this O1 tool steel rectangle bar to verify its chemical and mechanical properties.

This O1 tool steel has a high machinability rating of 95 and an ultimate tensile strength of 105 ksi, making it a good general-purpose tool steel that balances strength and ease of machining.

Yes, the rectangle bar is offered in 18-inch and 36-inch lengths. The 18-inch bar weighs approximately 0.72 lbs for shipping, while the 36-inch bar weighs about 1.44 lbs.

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