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Dental Ceramic Alloy

Physical Data

Melting Range 1188-1270°C Casting Temp 1340°C (2440°F)
Hardness 320 HV CTE 13,71 *10-6 @25-600°C
Yield Strength 95,000 PSI Tensile Strength 145,000 PSI
Elongation 5,5% Density 8,00 g/cm3
Specific Gravity 7,76 g/cm3

Section I

Material Identification

Nickel, Chrome, Molybdenum Base Alloy

Trade Name

None-Precious Alloy

Commercial Name


Section II

Ingredients & Hazards

Ingredients Cas # % Composition by weight
Chromium (Cr) (7440-47-3) 24~26%
Molybdenum (Mo) (7439-98-7) 8~10%
Titanium (Ti) (7440-32-6) <1%
Aluminum (Al) (7429-90-5) <1%
Cobalt (7440-48-4) <1%
Nickel (Ni) (7440-02-0) 62~63%

Hazard Data

  • For pure Nickel & Chromium (Fumes & Dust)
  • Eight (8) Hr. – 1mg/m3
  • For pure Molybdenum (Fumes & Dust)
  • Eight (8) Hr. TLV – 5 mg/m3

Technical Data

Melting Range 1188-1270°C (2,174 - 2,318°F)
Casting Temperature 1,340°C (2440°F)
Hardness 320 HV
Yield Strength PSI 95,000
Tensile Strength PSI 145,000
Elongation 5.5%
Density 8.2 g/cm³
CTE 14.1 x 10ˉ (@500°C)
Solubility in Water Insoluble
Appearance & Odor No Odor, White (Platinum) Color
Each Ingot Weight Approximately 5 – 8 grams
Fire & Explosion Fire and explosion resistant

Section III

Reactivity Data

At ordinary and at high temperature, the alloys oxidize, but are stable. At very high temperatures alloy may produce fumes.

Section IV

Health Hazard Information

Individual components and some of their compounds, in dust and fume form, are suspected to be causes of progressive lung damage and disease. Symptoms include: Weight loss and/ or difficulty breathing, and skin rash and itching.

First Aid

Eye Contact

Flush eyes Thoroughly with running water, even under eyelid.

Skin Contact

Flush skin and scrub thoroughly with soap and water.


Remove person to fresh air. Assist breathing with additional oxygen if necessary.

Section VII

Spill or Leak Procedures

Remove dust by vacuuming or wet sweeping to prevent powdering in the air. Wear respirators and protective clothing. Use disposable containers. No special precautions are required for bulk (solids) shapes, such as ingots and buttons.

Section V

Special Protection Information

General and local ventilation and exhaust filtration should be employed. Respirator, goggles, gloves, and coveralls or protective clothing should be used. Also, periodic physical examinations should be taken.

Section VI

Special Precautions

Avoid inhalation of fumes and dust. Wear protective clothing. Grind and polish with adequate ventilation. This alloy contains Nickel, not to be used in individuals with Nickel sensitivity.

Section VII

Spill or Leak Procedures

Remove dust by vacuuming or wet sweeping to prevent powdering in the air. Wear approved respirators and protective clothing. No special precautions are required for bulk (solid) shapes such as ingots.

The information in this MSDS was obtained from sources, which we believe are reliable. However, the information is provided without any representation or warranty, express or implied regarding the accuracy or correctness.

These alloys contain Nickel, Chromium, Molybdenum, Aluminum, Silicon, Titanium, and Niobium. University studies have established that alloys in these categories are not only biocompatible, but clinically safe as well. The alloy in solid form is generally not considered hazardous.


Wax to a minimum of .3mm for single units and .5mm for bridge work. Avoid sharp angles and wax to provide for an even thickness of porcelain.


The indirect method is recommended. Use 6 or 8 gauge sprues for pontics and 10 gauge sprues for copings. Use a pre-made or hand formed runner bar. Sprue length should be precisely 1/4 inch.


A phosphate-bonded high heat investment without Carbon content is recommended. Follow the manufacturers instructions for mixing powder and liquid. Cover the pattern with no more than 1/8" – ¼" of investment. Use a double ring liner. BURNOUT- Place in a cold furnace and raise to 1550ºF. Heat soak at 1550ºF for one half hour. Increase 5-10 minutes hold time for larger or multiple rings.


Use a multi orifice torch tip with gas wide open and 40 PSI oxygen. Propane 2-4 PSI maximum. If re-melting, add 50% new metal to button. Using a high heat crucible, heat ingots until they turn white and slump. After alloy slumps, make sure all surfaces are white hot before releasing casting arm. DO NOT break protective surface oxide. By induction-the casting temperature is 2550ºF (1400ºC) with a 5 second heat soak.


Bench cool for 10 minutes and water quench. DO NOT USE HYDROFLUORIC ACID OR ACID SUBSTITUTES. To devest, blast with aluminum oxide. To finish- use only aluminum oxide stones and wheels, diamonds, or carbides. Grind and polish with adequate ventilation only.


Oxidize (degas) framework under vacuum starting at 1000ºF, raise temperature to 1875ºF, 100ºF per minute. Release vacuum, remove and bench cool. A thin straw-colored (goldish-brown or greenish) oxide should appear on the metal surface. Proceed with opaquing according to porcelain manufacturer's instruction.


This alloy contains Nickel and should not be used for persons with known Nickel sensitivity. Contains Beryllium. Grind and polish with adequate ventilation only.
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