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
0.3125
Width
4
Max Length
36
Alloy
O1
Production Method
Precision Ground
Weight/Lineal Foot
4.25 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 product is a precision ground rectangle bar with a thickness of 0.3125 inches and a width of 4 inches. It is available in lengths up to 36 inches.

Custom cutting is not available from the warehouse for this product, so it is sold in standard lengths only.

Yes, O1 tool steel offers excellent dimensional stability during heat treatment and is commonly used for rolls, punches, shear knives, food processing knives, and gauges.

The O1 alloy has a high machinability rating of 95 and an ultimate tensile strength of 105 ksi, making it a good general-purpose tool steel.

Yes, a material test report (MTR) is available for this product to verify its chemical and mechanical properties.

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