Comparison of Stainless Steel Grades 304, 316, 430, and 201 for Sales

The customer says they want stainless steel, but stainless steel is not one single thing; it is a family of grades, each made for a different job. Selling the wrong grade either creates cost issues for the customer or causes their product to fail sooner than expected. Knowing these grades is the most important skill for a stainless steel salesperson.

Four Main Grades on the Market

304 stainless steel is the most common grade, with approximately 18 percent chromium and 8 percent nickel. It is nonmagnetic and has good corrosion resistance. 316 stainless steel is the same as 304, plus approximately 2 percent molybdenum, which increases its resistance in chloride environments such as seawater. 430 stainless steel contains chromium but no nickel; it is ferritic and magnetic, and is less expensive. 201 stainless steel is also an economical grade with low nickel and high manganese.

Each stainless steel grade has a different composition and resistance; the right choice depends on the customer’s environment and application.

Grade Comparison Table

Why Asking About the Application Environment Is Key

If the customer wants stainless steel for a wet environment or near the sea and you provide 304 instead of 316, they may see corrosion a few months later. Conversely, if you recommend expensive 316 for a dry indoor railing, you have imposed an additional cost. One question about the environment and application prevents both mistakes.

A salesperson who knows the grades and provides the right guidance becomes a consultant for the customer rather than merely a supplier.

A Practical Tip for Quick Identification

Although accurate testing requires a laboratory, a simple magnet is a good initial guide: 304 and 316 are practically nonmagnetic, while 430 and 201 show a noticeable magnetic response because of their ferritic structure or low nickel content. This test takes only a few seconds and is your first layer of assurance before any important transaction.