CF8 CF8M CF3 CF3M What's the Meaning | JC Casting
But strictly speaking, the stainless steel valve should still be called CF8. CF8, CF8M, CF3, CF3M are stainless steel castings in the American Standard ASTM A351 standard. CF8M is equivalent to China's ZG0Cr17Ni12Mo2. Corresponds to 316 stainless steel. CF8 is equivalent to China's ZG0Cr18Ni9.