Tool Steel Rectangle 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-Rectangle
Yes
Eniteo Vendor ID
3145
Custom Cut Warehouse
0
Thickness
0.125
Width
3
Max Length
36
Alloy
O1
Production Method
Precision Ground
Weight/Lineal Foot
1.27 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 tool steel rectangle bar measures 0.125" in thickness and 3" in width, made from O1 alloy tool steel. It is precision ground for excellent dimensional stability and is available in lengths up to 36".

Yes, O1 tool steel is known for experiencing significantly less distortion during heat treatment compared to other tool steels, making it ideal for precision applications like rolls, punches, shear knives, and gauges.

The bar is available in standard lengths of 18" and 36" with both options in stock. However, the product data indicates no custom cut warehouse availability, so custom cuts may not be offered.

The O1 tool steel bar has a high machinability rating of 95, making it easy to machine. It is typically used for general purpose tooling such as rolls, punches, shear knives, and food processing knives.

Yes, material test reports (MTR) are available for this product, ensuring quality and compliance with specifications.

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