Cold Roll Round Bar 1045 Cold Finish exhibits medium tensile strength, good weldability and machinability, and high strength. 1045 is a commonly used lower carbon steel with a wide range of applications. It is typically used in machinery parts, die forging, hot upsetting, gears, crankshafts, shafts, axles, bolts, studs, pinions, casters, and support plates.

MTR MTR Available
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Product Information

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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.
Diameter
4
Max Length
144
Alloy
1045
Production Method
Cold Finish
Metal Type
Carbon Steel
Shape
Bar-Round
Yes
Custom Cut Warehouse
1
Weight/Lineal Foot
42.65 pounds
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Mechanical Properties

Density g/cm^3
8
Yield Tensile Strength KSI
77
Ultimate Tensile Strength KSI
91
Brinell Hardness 3000 kg load
179
Elongation % in 2 in.
12
Rockwell Hardness B Scale
88
Shear Strength KSI
59
Melting Point °F
2590 - 2660
Electrical Conductivity % IACS
7
Machinability %
64
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Chemistry Information : 1045 Carbon Steel

Element
Percentage
Element
Percentage
Element
Percentage
Fe
98.7
Mn
0.8
S
0.05
C
0.45
P
0.04

This 4" diameter 1045 carbon steel round bar is commonly used in machinery parts, die forging, hot upsetting, gears, crankshafts, shafts, axles, bolts, studs, pinions, casters, and support plates due to its medium tensile strength and good machinability.

Yes, custom cut lengths are available from the warehouse, with standard length options ranging from 12" up to 96" to suit your project needs.

The 1045 cold finish round bar offers a yield tensile strength of 77 ksi, ultimate tensile strength of 91 ksi, and has a machinability rating of 64, making it suitable for high-strength applications requiring good machining.

Yes, a Material Test Report (MTR) is available for this product to verify its chemical and mechanical properties.

Shipping weight varies by length, for example, a 12" piece weighs approximately 42.65 lbs, while a 96" piece weighs about 341.2 lbs.

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