Carbon Steel Flange vs Stainless Steel Flanges | Types Standards & Uses

dealonsteel

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Dec 11, 2025
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Carbon steel flanges and stainless steel flanges are both widely used, but each serves different purposes. Carbon steel flanges are known for high strength and cost-effectiveness, making them ideal for high-pressure and structural applications. Stainless steel flanges, on the other hand, offer superior corrosion resistance and are preferred in chemical, marine, and food industries.

Both flange types are manufactured as per standards like ASME B16.5 and ASTM specifications. Common carbon steel grades include ASTM A105, while stainless steel grades include ASTM A182 F304 and F316. Selection depends on temperature, pressure, corrosion exposure, and budget.

Understanding the difference helps industries choose the most efficient and long-lasting solution for their piping systems.

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