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
0.3125
Width
3.5
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
3.88 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 rectangle bar with a thickness of 0.3125 inches and a width of 3.5 inches. It is available in lengths up to 36 inches and is ground oversize for precise dimensional stability.

Yes, O1 tool steel is an oil-hardening, general-purpose tool steel known for excellent dimensional stability and significantly less distortion during heat treatment compared to other tool steels like A-2 or D-2.

Custom cuts are not available from the warehouse for this product, but a material test report (MTR) is available to verify the material's specifications.

This bar is typically used in rolls, punches, shear knives, food processing knives, and gauges, offering good machinability and strength for these applications.

The 18-inch length option weighs approximately 5.58 lbs and costs $167.63, while the 36-inch length weighs about 11.16 lbs and costs $277.13. Both lengths are in stock and ready to ship.

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