How Precision CNC Machining Serves the Global Sanitary Hardware Industry
In the sanitary hardware industry, material selection directly determines product corrosion resistance, service life, and safety. SUS304 and SUS316L, as the two most commonly used stainless steel grades, each have their unique application advantages.
SUS304 (18/8 Chromium-Nickel Stainless Steel)
SUS304 is the most widely used austenitic stainless steel, containing 18% chromium and 8% nickel. Its excellent comprehensive properties make it the primary material for sanitary hardware, suitable for most indoor and general outdoor environments.
SUS304 Chemical Composition & Properties
- • Chromium (Cr): 18%
- • Nickel (Ni): 8%
- • Corrosion Resistance: Excellent for normal atmospheric and freshwater environments
- • Standards: ASTM A240, EN 10088-2, GB/T 3280 compliant
SUS316L (Low-Carbon Molybdenum-Bearing Stainless Steel)
SUS316L is the low-carbon version of SUS316, with additional 2-3% molybdenum. The addition of molybdenum significantly improves chloride corrosion resistance, making it the ideal choice for coastal areas, swimming pools, and chemical environments.
SUS316L Chemical Composition & Properties
- • Molybdenum (Mo): 2-3% (Key Difference)
- • Pitting Resistance Equivalent (PREN): >24
- • Seawater Resistance: Excellent
Selection Guide: Choosing the Right Stainless Steel
Choosing the right stainless steel grade requires comprehensively considering the usage environment, budget constraints, and product positioning. For most household sanitary facilities, SUS304 can provide sufficient corrosion protection; for high-end projects, coastal buildings, or public facilities, the additional investment in SUS316L will bring longer product life and lower maintenance costs.
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