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VKS-SG Attachment Systems
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Overview
MATERIAL SAFETY DATA SHEET
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Product Name: BREALLOY F 400
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Product Code: 500 ML1 00, 500 ML5 00, 500 ML0
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Before using this product, please read and follow these
instructions carefully. |
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1. Composition/Information on ingredients
Chemical characterization:
Compound name: Cobalt.
Chemical formula: Co
CAS No.: 7440-48-4
EINECS No.: 231-158-0
Content: Unit:
66.0 %
Hazard ID Code R Codes
Xn 42/43
Compound name: Chromium
Chemical formula: Cr
CAS No.: 7440-47-3
EINECS No.: 231-157-5
Content: Unit:
20.0 %
Hazard ID Code R Codes
None None
Compound name: Molybdenum
Chemical formula: Mo
CAS No.: 7439-98-7
EINECS No.: 231-107-2
Content: Unit:
6.0 %
Hazard ID Code R Codes
N/A N/A
2. Hazard Identification
Dust and vapors: Do not inhale. May release metallic
vapors when melted. Possible sensitization due to skin
contact and inhalation.
3. First aid procedures
After inhaling: Ensure fresh air supply.
Skin contact: Wash hands and/or face before breaks and
after work.
Eye contact: Rinse eyes under running water for several
minutes with eyelid open. If irritation persists, seek
medical attention.
4. Fire fighting procedures
Suitable extinguishing media: All extinguishing media
are suitable. Product itself is not flammable.
Special hazard: Use protective clothing required for
fire fighting.
5. Accidental release procedures
Individual precautions: Precautions for handling
chemicals must be observed.
Environmental precautions: Dust and water-soluble forms
on the alloy: product must not reach soil, water and
sewage system.
Cleaning up spillage: Mechanical cleaning.
6. Storage and handling
Handling: If used properly, no special measures are
required. Do not inhale dust or vapor.
7. Exposure control/individual protection
Components with working place-related limits to be
observed:
Compound Name CAS No.
Cobalt 7440-48-4
Limits Value Unit
Germany/TRGS 900 (1996) > as metal, sulphide, oxide.
0.5 mg/m3 (E) > for the production of powder and
cabalysts.
0.1 mg/m3 (E) > other applications: max. limit 4 (inhalable
proportion)
Austria/GKV (1996) > as metal, sulphide, oxide.
0.5 mg/m3 resp. 0.1 mg/m3 (G) (TRK); (as total dust).
Compound Name CAS No.
Chromium 7439-98-7
Limits Value Unit
Germany/TRGS 900 (1996); Austria/GKV (1996).
No national limits known.
Compound Name CAS No.
Molybdenum 7439-98-7
Limits Value Unit
Germany/TRGS 900 (1997)
15 mg/m3 (E) > as inhalable fraction.
Austria/GKV (1996).
No national limits known.
Personal protective equipment:
General protective and hygienic measures: Wash hands and
face before breaks and after working. Common precautions
for handling chemicals have to be observed. When
exceeding the working place-related limits and/or in
case of release of large quantities (leakage, spilling,
dust) the indicated respiratory protection must be used.
Do not eat, drink, or smoke when working.
Respiratory protection: When melting, soldering and
grinding, high-mask face-piece with particle filter P2
must be used.8. Physical and chemical properties
Form: Solid.
Color: White.
Odor: None.
Melting point/range: 1320-1380> C.
Density: 8.4 g/cm3
9. Stability and reactivity
Conditions to be avoided: No restrictions.
Substances to be avoided: No restrictions.
Hazardous decomposition products: May release metallic
vapors during melting.
10. Toxicological information
Possible evidence of cancerogenic effect in animal
experiments.
Experience gathered in humans: When handling this
product, hazardous effects have not been reported so
far.
Further information: If proper handling and storage are
ensured, no hazardous reactions are known.
11. Ecological information
General information: Dust and water-soluble forms of the
alloy: avoid penetrating into soil, water and sewage
system. Plates ingots wire: water hazard class: 0, not
hazardous to water.
12. Disposal consideration
Product: To be disposed of according to the regulations
of local authorities.
13. Transport information
Hazardous material within the meaning of transport
regulations:
GGVS/GGVE/RID/ADR/IMDG-Code/ICAO-T
14. Regulatory information
Labeling according to EC guidelines: No labeling
according to Gefahrstoffverordnung (Hazardous Substances
Regulations 7, section 5 (guideline 67/548/EEC and
appendixes) required. 15. Other information Data
sheet completed by: Research and Development Department
> Bredent (Germany). This Material Safety Data Sheet
is provided by way of guide for the use of our
product
and is correct to the best of our knowledge.
However, we can>t offer any guarantee as to its
accuracy
or exhaustiveness. All chemicals may present
unforeseen
risks and should be used with caution.
We cannot guarantee that the risks referred above
are
the only risks present. The final choice of the
application of a product is thus the sole
responsibility
of the user.
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INSTRUCTIONS FOR USE
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BREALLOY F 400
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Before using this product, please read and follow these
instructions carefully. |
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1. Indication Range
Brealloy F 400 is a biocompatible
cobalt-chromium-molybdenum alloy. It is suitable for
cast dentures and for crown and bridgework. If Chrome
Cobalt Bonding Agent (Item # 520 003 21) is used, the
alloy can also be veneered ceramically. Brealloy F 400
is nickel-free and corresponds to the standard DIN EN
ISO 6871 > part 1: 1996.
2. Processing
Dust and vapors: Do not inhale. May release metallic
vapors when melted. Possible sensitization due to skin
contact and inhalation.
2.1 Modeling, preheating and casting
Cast supply resp. crowns and bridges are modeled
according to standard criteria. Use round wax profiles
with diameters of 3 to 4 mm. for sprues. Diverting of
the molten alloy must be avoided. Use phosphate-bonded
investment materials for investing. Preheat casting
rings up to 950 - 1000> C; particularly thin objects or
full plates for upper jaws should be preheated to 1050>
C. Depending on the size of the casting ring and the
quantity of alloy that is fed into the casting ring, the
final temperature must be maintained for 45 to 60
minutes. The casting temperature of Brealloy F 400 is
1480> C. The alloy can be melted with a high-frequency
melting machine or with an open flame. Use a separate
ceramic crucible to melt Brealloy F 400 in order to
avoid contamination with other alloys. Preheat the
crucible together with the casting rings in the furnace
and clean them after each casting process. The
cylindrical shape of the metal pieces simplifies melting
down during induction melting of the alloy. Start
casting when all cylindrical pieces have flown together
and the molten metal appears to be evenly bright.
Note: During melting under vacuum fewer oxides are
formed and the oxide skin tears up earlier in the
vacuum.
During melting with an open flame, the correct
adjustment of the burner (torch) must be ensured.
Melting should only be carried out with the reducing
zone of the circulating flame. Start casting when the
molten material begins to move under the pressure of the
gas. Overheating of the molten metal must be avoided.
The operating instructions of the respective casting
machines must be adhered to.
2.2 Devesting and finishing
Devest the casting after the casting ring has cooled
down and sandblast with corundum at maximum pressure of
4 bar. Do not use automatic sandblasting units for
attachments and fit elements. After sandblasting finish
the surfaces using abrasive stones, sintered diamonds or
Tungsten carbide burs. If electrolytic polishing is
required, use cover varnish to protect clasps and fit
elements against uncontrolled removal of material. A
Tungsten carbide bur is used to remove cast beads from
fit elements produced according to the single-piece
casting technique. After finishing of the cast object,
smoothen the surface with rubber polishers and polish
using a polishing paste for CoCrMo alloys.
2.3 Joining techniques
Use Brealloy Solder (Item # 500 00soldering. Use commercial
CoCr laser welding wire for laser welding; do not
produce welding wires from Brealloy F 400 in the casting
technique.
3. Technical Data
3.1 Composition (in mass %):
Cobalt 64.7
Chromium 29
Molybdenum 5
Manganese 0.4
Silicon 0.5
Carbon 0.4
3.2 Physical values (guide values):
Density (g/cm3) 8.4
Vickers hardness (HV10) 400
Solidus point (> C) 1320
Liquidus point (> C) 1380
Casting temperature (> C) 1480
0.2% Proof stress (MPa) 700
Modulus of elasticity (MPa) Approx. 220,000
Tensile strength (MPa) 900
Strain at break (%) 4
Expansion coefficient (TEC 25-600> C) 15 >m/mk
4. Other Information
The information contained in this product information is
always updated according to the latest knowledge and
experience. Therefore, we recommend to read this product
information again before using a new package.
This product information refers to Brealloy F 400, Item
#s 500 ML1 00, 500 ML5 00, and 500 ML0 00.
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