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
0.1875
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
0.13 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 square bar is made from O1 alloy, known for excellent dimensional stability during heat treatment. It is oil-hardening and offers good machinability (95%) with a tensile strength of 105 ksi. The bar is ground oversize with a height of 0.1875" and is ideal for applications like rolls, punches, shear knives, food processing knives, and gauges.

This product is offered in a maximum length of 36 inches and is available as a ground oversize bar. However, the custom cut warehouse value is 0, indicating that custom cutting may not be available for this specific item.

Yes, the bar complies with ASTM A681 and SAE J-437 standards, ensuring it meets recognized industry specifications for tool steel.

The 3/16" O1 tool steel square bar weighs approximately 0.36 lbs for a 36-inch length and is currently in stock and available for immediate shipment.

Yes, an MTR report is available for this product, providing detailed material certification and quality assurance.

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