The 400-series includes ferritic and martensitic SS families. Ferritic grades aren’t as hard, but they get the job done when it comes to weldability and corrosion resistance. Martensitic grades have significant carbon content, so they’re often used for tempered tools and parts.

Our precision CNC machine shop works with a wide range of 400-series stainless steel grades, each with specific advantages:

Selecting the right grade of 400-series stainless steel can improve your final results, reduce overall costs, and contribute to stronger products.

At Panek Precision, we have over 70 years of experience in precision machining and metal forming. As a trusted CNC machine shop, we deliver components that meet demanding project specs. We deliver the 400-series stainless steel products you need on time, on budget, and with exceptional quality. Contact us right away to get started.

Overall, stainless steels in the 400 range provide greater hardness and tensile strength. They shine for parts that have to perform well in demanding mechanical conditions. They also offer good corrosion resistance, but not as much as 300-series SS options.

At Panek Precision, we have a full-service CNC machine shop with a wide range of 400-series stainless steel options. We can help you select the ideal grade of 400-series SS for your next project, from high-volume industrial parts to precision assembly components.

Many types of 400-series SS are an excellent fit for machining. As an industry-leading CNC machining shop, we do more than supply the material you require. We provide a complete range of production services, such as:

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