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Quality Products. Excellent Service.

Today’s market is tough. Super Chatter Free is tougher. Superior performance, excellent value and outstanding durability make Mi-Tech Tungsten Metals’ Super Chatter Free material the ideal choice for a variety of applications in the most demanding environments.

Having an even higher tungsten content than our Chatter Free material, Super Chatter Free (also marketed under the name Diemitech) is used extensively as an alternative to tungsten carbide for boring bars and grinding quills. Diemitech is also an excellent choice for high-temperature tooling applications.

The high-tungsten content of Mi-Tech Tungsten Metals’ Super Chatter Free material, offers several advantages over traditional materials.

Super Chatter Free (Diemitech):

  • resists erosion, scaling, chipping and breakage
  • minimizes soldering and heat checking
  • is machinable, similar to gray cast iron
  • withstands thermal shock
  • doesn’t require costly heat treatment (tools can be placed into service as machined)
  • maintains superior physical properties at high temperatures

With high-thermal conductivity (three to four times that of steel), and low-thermal expansion (one-third that of steel), Super Chatter Free (Diemitech) is an excellent choice for high-heat applications. Its high density and rigidity also make longer tool extensions possible, with ratios of up to 10:1, depending on the tool’s diameter.

Today’s market is tough. With Mi-Tech Tungsten Metals’ Super Chatter Free, your products can be tougher.

Please see our Technical Documents page to download information about Diemitech HD 17.7.

Tungsten Content 93%W Proportional Elastic Limit (PSI) 60,000
Density Gms/cc 17.7
Density Lbs/ 0.639
Hardness Rockwell C 30 Modulus of Elasticity (PSI) 53 x 106
Ultimate Tensile Strength (PSI) 130,000 Coefficient of Thermal Expansion
(x 10-6/°C at 20° - 400°C)
Yield Strength .2% offset (PSI) 90,000 Thermal Conductivity (CGS Units)
Electrical Conductivity
Elongation (% in 1") 10 (% IACS) 14

Availability: Stock size diameters in 8" and 12" lengths. Other shapes and forms can be manufactured to specific requirements.

Domestic Manufactured Quality Tungsten Metal Products.
Excellent Customer Service.