AISI 4145H Structural Steel Bar

AISI 4145H Structural Steel Bar Element %Composition

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C: 0.42-0.49
Si: 0.15-0.35
Mn: 0.65-1.10
Cr: 0.75-1.20
Mo: 0.15-0.25
P: 0.035 max
S: 0.04 max
Ni: 0.25 max
Cu: 0.35 max

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Tensile Strength 850-1050 MPa
Yield Strength 690-760 MPa
Elongation 15%

Hardness 280-340HB

AISI 4145H also exhibits excellent toughness. It can absorb impact and energy without fracturing easily, providing safety and reliability in harsh operating conditions. This toughness is crucial for applications where unexpected loads or impacts may occur.

The steel bar has good hardenability. It can be heat-treated to achieve a wide range of hardness levels, allowing for customization according to specific requirements. This property enables it to be used in applications that require different levels of hardness for wear resistance and durability.

Corrosion resistance is another significant advantage of AISI 4145H. It can resist the effects of moisture, chemicals, and other corrosive elements, prolonging the service life of components and structures. This is especially important in environments where exposure to corrosive substances is likely.

Furthermore, AISI 4145H has good machinability. It can be easily machined into various shapes and sizes using standard machining tools. This makes it convenient for fabrication and customization, reducing production time and costs.

The steel bar also offers dimensional stability. It maintains its shape and size under different temperatures and loading conditions, ensuring accurate and reliable performance. This is essential for applications that require precise dimensions and tight tolerances.

In conclusion, AISI 4145H structural steel bar offers a host of performance advantages, including high strength, toughness, hardenability, corrosion resistance, machinability, and dimensional stability. These qualities make it a preferred choice for a wide range of applications in various industries, providing reliable and durable solutions.

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