ThePipingMart Blog Grades CF8M Stainless Steel – Composition, Properties, and Uses

CF8M Stainless Steel – Composition, Properties, and Uses


CF8M is a type of stainless steel used in various industrial and commercial applications. It is an alloy composed of iron, chromium, nickel, and molybdenum, making it resistant to corrosion and wear. In this blog post, we’ll explore the composition, physical properties, mechanical properties, and uses of Stainless Steel CF8M.

CF8M Stainless Steel Composition

CF8M is composed primarily of iron (65% – 70%), chromium (17% – 20%), nickel (9% – 12%), and molybdenum (3%). It also contains small amounts of carbon (0.08% max), silicon (1% max), manganese (2% max), phosphorus (0.040% max), sulfur (0.030% max) and nitrogen (0.10%) max). Combining these elements gives the alloy the unique physical properties that make it ideal for specific industrial and commercial applications.

CF8M Stainless Steel Physical Properties

CF8M ss has a number of physical properties that make it ideal for certain applications. Its high chromium content gives it excellent resistance to corrosion by acidic compounds such as sulfuric acid or hydrochloric acid. It also has excellent resistance to oxidation at high temperatures due to its high nickel content. Its molybdenum content adds additional strength to the alloy, while its low carbon content helps minimize distortion during machining operations.

CF8M Stainless Steel Mechanical Properties

CF8M has excellent mechanical properties, including tensile strength at 860 MPa min., yield strength at 590 MPa min., elongation at 25%, hardness at Rockwell B 85 max., impact energy at 15 J min., Charpy V-notch Impact Test at 6 ft/lbs min., shear strength at 775 MPa min., compression strength at 945 Mpa min., modulus of elasticity in tension at 200 GPa min., fatigue strength ratio 1:1 @ 20Hz/min over 500 cycles with no evidence of fatigue failure or crack propagation. These mechanical properties make the alloy suitable for use in components exposed to dynamic loading or stress cycling, such as valve stems or shafts in pumps or valves.

CF8M Stainless Steel Uses

Due to its excellent corrosion resistance and mechanical properties, CF8M is commonly used in chemical processing equipment such as heat exchangers, tanks, valves and piping systems, and food processing equipment like cookware and cutlery. It can also be used in specialty medical devices like implantable orthopaedic devices due to its biocompatibility with human tissue. Further uses include automotive components such as exhaust manifolds due to their high-temperature capabilities and marine components due to their resistance to salt water corrosion.


As you can see from this overview, CF8M has various uses thanks to its unique physical and mechanical properties. It is ideal for multiple applications, from chemical processing equipment to medical implants and even automotive components. If you’re looking for an alloy with excellent corrosion resistance that can withstand heavy loads or dynamic forces, look no further than CF8M!

Related Post