Stainless Steel pipes are used in various applications, ranging from plumbing and industrial processes to architectural design. Stainless steel Pipes come in different grades, and each is developed for specific purposes. Knowing which grade of stainless steel pipe best suits your project can help you achieve the desired results and avoid costly mistakes.
There are four standard grades of stainless steel; 304, 316, 321, and 347. The first two numbers indicate the percentage of chromium content in the pipe, with 18% being the most common (304 grade). The third number indicates the amount of nickel (8% for 304 grade). The last number is only intended as a reference mark and does not affect corrosion resistance or mechanical properties.
Different Types of Stainless Steel Pipes
Grade 304: Stainless Steel is ideal for many applications where corrosion resistance is not a significant factor. Also, it is generally considered the most common grade of stainless steel & used for general-purpose applications such as kitchen sinks, automotive trims, and architectural details.
Grade 316: Stainless Steel Pipe is more corrosion-resistant than 304-grade pipes, making it ideal for marine or outdoor use in corrosive environments also used in chemical processing, pharmaceuticals, and industrial equipment that require higher strength and superior corrosion resistance.
Grade 321: Stainless Steel Pipe also offers superior corrosion resistance but slightly lower chromium content than Grade 316. This makes it an excellent choice for high-temperature applications like furnace components or exhaust systems that require exceptional strength & heat resistance.
Grade 347: Stainless Steel Pipe is designed for applications that demand superior corrosion resistance and strength at high temperatures also provides excellent oxidation resistance, making it ideal for extreme environments like the food industry or chemical plants.
SS Pipes come in a range of grades, with each offering its own unique set of benefits. It’s essential to understand which grade best suits your project so you can get the most out of your pipe.