Based on more than twenty years of research, Conforma Clad has developed three standard tungsten carbide cladding formulas (WC200, WC210, WC219) that provide superior wear protection for a wide range of operating conditions and wear modes (including abrasion, erosion, corrosion and impact, individually or in a combination). Our engineers evaluate each substrate and operating environment to determine the best cladding formula. In addition to the standard tungsten carbide cladding formulas, we also offer custom formulations to fit specific customer requirements.

General Cladding Properties

  • Excellent abrasion, erosion and corrosion resistance
  • Longer lasting and more durable than sprays, chrome carbide weld overlays and other alternative wear protection
  • Cladding will not detach from equipment because of strong metallurgical bond (70,000 psi)
  • Cladding can be applied to complex geometries and inside diameters, and to areas unreachable by other methods (areas out of the line-of-sight)
  • Cladding has no interconnected porosity, offering superior corrosion and impact resistance
  • A thin layer of our brazed tungsten carbide cladding gives the same wear resistance as a much thicker application of weld overlay, allowing cladding applications in areas typically not protected because of weight restrictions
  • Cladding properties are consistent throughout, creating uniform wear-rates and  continuous heat transfer

Standard Tungsten Carbide Cladding Formulas

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 (BTU in/h•ft2•°F)

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. 

 

 

 


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