Stainless Steel vs. Alloy Ball Valve Balls: Material Selection Guide for 2026

Date:5/14/2026 6:02:09 AM Click:1

Choosing the right ball valve ball material directly impacts valve reliability and maintenance cost. Below is a 2026 updated comparison for common materials：

304 Stainless Steel: General water, low pressure, non-corrosive; cost-effective, ANSI 150#
316 Stainless Steel: Marine, mild acid, food grade; better corrosion resistance, ANSI 300#
F6a (440A): Hardened, wear-resistant; for general hard seal, 500–800HV
440C: High hardness (HRC 58–62), best wear resistance; for high-cycle abrasive service
Inconel 625: Extreme corrosion, high temperature (650℃ ), H₂S; for oil/gas sour service

We provide custom ball valve balls in all materials, with NACE MR0175 certification available.

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