1008 Steel vs 4130 Steel – What’s the Difference

1008 Steel vs 4130 Steel

Steel is one of the most versatile and commonly used materials in the manufacturing industry. Various types of steel are available, and each has unique characteristics that make them suitable for different applications. This blog post will explore the difference between 1008 steel and 4130 steel. If you need help deciding which material to use for your project, keep reading!

Difference Between 1008 Steel and 4130 Steel

Chemical Composition:

1008 steel is primarily composed of iron with a small amount of carbon, making it a low-carbon steel. On the other hand, 4130 steel is a Chromium-Molybdenum alloy steel, containing 0.28-0.33% carbon, 0.7-0.9% manganese, 0.15-0.25% molybdenum and 0.4-0.6% chromium. The difference in composition gives each material distinct properties that make it suitable for specific applications.

Strength and Ductility:

4130 steel has a higher strength and toughness than 1008 steel, making it a popular choice in aerospace, automotive and industrial applications. It can withstand high-stress situations without fracturing or cracking. 1008 steel, on the other hand, has low strength and flexibility, making it more suitable for applications that require low-stress tolerance, such as wire forming and stamping.


1008 steel is easy to form, weld, and machine due to its low carbon content. It is malleable and can be bent or moulded into any desired shape. In contrast, 4130 steel can be challenging to machine due to its high hardness and toughness. However, its workability can be improved by heat treatment and annealing.

Corrosion Resistance:

4130 steel has higher corrosion resistance due to the presence of chromium, making it an excellent choice for industrial applications. 1008 steel, on the other hand, is prone to rust and requires regular maintenance to prevent corrosion.


The cost of both materials varies, with 1008 steel being more affordable than 4130 steel due to its simpler composition. For applications where cost is a major factor, 1008 steel is the better option.


To summarize, 1008 and 4130 steel are different types used in different applications. The choice between the two depends on strength, flexibility, workability, corrosion resistance, and cost. 4130 steel may be the best option if you need high strength and toughness. If you require a material that is easy to form and machine and cost-effective, 1008 steel may be the better choice. We hope you found this blog post insightful and helpful in selecting your next material.

Minal Jogale

Minal Jogale

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