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
0.625
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
1.38 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 machinability.

Custom cut lengths are not available from the warehouse for this product, but it comes in standard lengths of 18 and 36 inches which are in stock and ready to ship.

O1 alloy offers decent strength and wear resistance but is less strong and wear resistant than A-2 or D-2 tool steels. However, it experiences significantly less distortion during heat treating.

Yes, a Material Test Report (MTR) is available for this O1 tool steel square bar, providing assurance of its material properties.

The machinability of this O1 tool steel is rated at 95, indicating it is relatively easy to machine compared to other tool steels, making it suitable for precision machining tasks.

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