1. Carbon Steel (WCB, WCC) :
   • Suitable for general applications.
   • Limited corrosion resistance; avoid corrosive environments.
   • Typically used in non-corrosive fluids at moderate temperatures.

2. Low Alloy Steel (WC6, WC9) :
   • Better corrosion resistance than carbon steel.
   • Suitable for moderate temperature and pressure services.
   • Commonly used in power generation and petrochemical industries.

3. Stainless Steel (CF8, CF8M) :
   • Excellent corrosion resistance.
   • Suitable for corrosive environments, chemical processing, and seawater applications.
   • CF8M (316 stainless steel) is more corrosion-resistant than CF8 (304 stainless steel).

4. Duplex Stainless Steel (CD3MN, CD4MCu) :
   • Offers higher strength and corrosion resistance compared to traditional stainless steel.
   • Suitable for corrosive and high-stress applications, such as offshore and chemical processing.

5. Nickel Alloys (C276, CW2M) :
   • Excellent corrosion resistance in highly corrosive environments.
   • Suitable for applications involving acids, caustic solutions, and extreme temperatures.

6. Titanium (Gr. 2, Gr. 12) :
   • Excellent corrosion resistance, especially in seawater.
   • Suitable for offshore and marine applications.

7. High-Temperature Alloys (Inconel, Hastelloy) :
   • Resistant to high temperatures and aggressive chemicals.
   • Suitable for high-temperature and corrosive services, such as in chemical processing and refineries.

8. Trim Materials :
   • Standard Trim (13% Cr, Stellite): Suitable for general applications.
   • Corrosion-Resistant Trim (316 SS, 17-4 PH): Suitable for corrosive environments.
   • Hard-faced Trim (Stellite, Tungsten Carbide): Suitable for erosive and abrasive services.