Technical Bulletin         Tungsten Carbide Cladding Formula   Download PDF here (720KB)    Engineered Formulas Conforma Clad has compiled over twenty years of scientific testing to develop three standard tungsten carbide cladding formulas to protect your equipment from multiple modes of wear, including abrasion, erosion, and corrosion. Engineers evaluate components and their operating environments in order to recommend a standard cladding formula, or create a custom cladding to meet your specific requirements. Our unique infiltration brazing process combines the hardness of tungsten carbide with the corrosion-resistance of nickel chrome boron, to create a protective barrier with unmatched wear-resistant properties. With a metallurgical bond strength in excess of 70,000 psi, our cladding is extremely resilient to chipping, cracking and flaking.   Cladding Composition (Weight Percentage)   WC 200 WC 210 WC 219 Tungsten Carbide* 62% 55% 48% Nickel 30% 34% 39% Chromium 6% 7% 8% Other 2% 4% 5% Total carbide loading from other carbide formation 68% 66% 62% *Tungsten Carbide (WC) includes cobalt bonded WC. Cladding Properties   WC 200 WC 210 WC 219 Density (lb/in3) 0.44 0.42 0.40 Thermal Conductivity 230 200 170 Metallurgical Bond Strength (psi) >70,000 >70,000 >70,000 Porosity <3% <3% <3% Rockwell Hardness (HRC)** 64-70 60-66 56-62 **Cladding is a composite of tungsten carbide particles dispersed in a nickel-based alloy matrix. The extremely hard carbide particles, with a Vickers Diamond Pyramid Hardness of about 2000 DPH50g [1865 DPH50g is equivalent to 80 Rockwell C Hardness (HRC) are surrounded by a two-phase matrix (300-800 DPH50g, equivalent to 30-64 HRC). Because of the heterogeneous structure of the cladding, direct Rockwell hardness measurements are an average of the hard particles and matrix, and are not representative of the individual components of the composite.     Performance Data   Dry Sand Abrasion Test (ASTM G65)   Corrosion Test (ASTM G31)     Erosion Test (ASTM G76)       Cladding Properties Properties Conforma Clad Thermal Spray Weld Overlay Wear Tiles Plasma Spray Bond Strength Very High Very Low High Low Low Complex Geometries Yes No Difficult Difficult No Abrasion Resistance Very High Moderate High Very High Moderate Erosion Resistance Very High Low-Moderate Low Low Low Corrosion Resistance High Low Low Low Low Impact Resistance Moderate Low Moderate Very Low Low Oxide Level Low High Low Low High Temperature Resistance High Moderate Low Very Low Moderate Resists Multiple Modes of Wear Yes No Yes No No