Product ID:PURE TUNGSTEN WELDING ELECTRODES
MSDS Date:08/01/1991
FSC:3439
NIIN:00N023056
MSDS Number: BLYGY

TELEDYNE MCKAY

850 GRANTLEY RD
YORK, PA 17405-1509
US

Emergency Phone: 717-849-2490

Info Phone: 717-849-2490

Cage: 76254

HOBART BROS CO MCKAY WELDING PRODUCTS DIV

TROY, OH 45373-2900 US

Telephone: 513-332-5706

Cage: 76254

SUCH AS PHOSGENE (TLV 0.1 PPM) EVEN IN THE

RTECS: 9999999ZZ

FROM THE ARC/ARC ITSELF, CAN PRDCE OZONE, (TLV 0.1

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& CO (TLV 50 PPM), ALL OF WHICH ARE HAZ.

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AIR RESP; FOR TUNGSTEN & ZIRCONATED TUNGSTEN

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UPON THE CONC. USE ONLY NIOSH/MSHA APPRVD RESP I/A/W

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ANSIZ49.1 SFTY IN WELDING & CUTTING. CONFINED SPACES

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LENS SHADE IS REQD WHILE WELDING. SELECT WELDING

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GOGGLES ARE REQUIRED WHEN DRESSING ELECTRODES.

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TUNGSTEN

CAS: 7440-33-7

RTECS: YO7175000

Fraction By Weight: >99.9%

OSHA PEL 5 MG/M3; 10 STEL

ACGIH TLV: 5 MG/M3; 10 STEL

POLISHING OPERATION, EXPOS IN EXCESS OF THE

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THE ARC CAN CAUSE EYE DAM, INFLAM OF THE MUC MEMB

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LIGHT FROM THE ARC/ARC ITSELF, CAN DECOMPOSE

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LD50 LC50 Mixture:NONE SPECIFIED BY MANUFACTURER.
Routes of Entry: Inhalation:YES Skin:YES Ingestion:NO
Reports of Carcinogenicity:NTP:NO IARC:NO OSHA:NO
Health Hazards Acute and Chronic:FUMES & GASES FROM WELDING & HIGH TEMP
CUTTING WILL DEPEND UPON COMPOSITION OF METAL BEING WELDED, PROCESS
PROCEDURES, ELECTRODE USED, COATING (SUCH AS LEAD BASED PAINT),
FILLER METAL & FLUX BEING USE D & OTHER FACTORS. THE FUMES MAY INCL
OXIDES, CHROMITES, FLUORIDES & OTHER HAZ MATLS. INHAL OF (SEE EFTS
OF OVEREXP)
Explanation of Carcinogenicity:NOT RELEVANT
Effects of Overexposure:HLTH HAZ:TUNGSTEN DUST, FUME OR MIST MAY OR MAY
NOT CAUSE TRANSIENT OR PERMANENT LUNG DAMAGE. THE SKIN MAY BE
IRRITATED BY DUST, FUME OR MIST CONTAINING TUNGSTEN. ELEC SHOCK CAN
KILL. NO INHALATION HA ZARD IS POSSIBLE FROM SOLID, FORMED PARTS.
IF POWDER OR DUST MAY BE GENERATED, AS FROM MACHINING OR (SEE
INGRED 2)
Medical Cond Aggravated by Exposure:CHRONIC RESPIRATORY DISEASE &
ASTHMA MAY BE AGGRAVATED BY EXPOS TO DUST, FUME OR MIST. OTHER
CNDTNS THAT MAY BE AGGRAVATED ARE NOT KNOWN & WILL DEPEND UPON
CNDTNS DURING ELECTRODE USE.

First Aid:SKIN:WASH AREA OF CONTACT W/SOAP & WATER. IF IRRITATION OR
RASH OCCURS, SEEK MD. EYE:WASH W/LARGE AMOUNTS OF WATER FOR AT
LEAST 15 MINS. IF IRRITATION OCCURS, SEEK MD. INHAL:REMOVE FROM
EXPOSURE. SEEK MD. IF NECESSARY AID BREATHING. INGEST:SEEK MD.
OTHER:WOUNDS CONTAMINATED W/DUST, FUME OR MIST SHOULD BE
IMMEDIATELY & THOROUGHLY CLEANED.

Extinguishing Media:FOR THE SURROUNDING FIRE. FOR TUNGSTEN DUST FIRES
USE CLASS D EXTINGUISHING MEDIA, DRY POWDERS.
Fire Fighting Procedures:WEAR NIOSH/MSHA APPRVD SCBA & FULL PROT EQUIP
. FOR A TUNGSTEN FIRE CONFINED TO A SMALL AREA, USE A NIOSH/MSHA
APPRVD RESP FOR TOX DUST & FUMES.
Unusual Fire/Explosion Hazard:WHEN TUNGSTEN IS HEATED IN AIR, TUNGSTEN
TRIOXIDE (TWA 5 MG(ASW)/M3) BEGINS TO SUBLIME ABOVE 750C. THESE
WELDING ELECTRODES DO NOT READILY BURN. (SEE SUPP DATA)

Spill Release Procedures:DISPOSE OF THE MATERIAL FOLLOWING ALL
APPLICABLE REGULATIONS. TUNGSTEN SCRAP & DUST HAVE VALUE & CAN BE
RECLAIMED.
Neutralizing Agent:NONE SPECIFIED BY MANUFACTURER.

Handling and Storage Precautions:MAINTIAN GOOD HOUSEKEEPING PROCEDURES
TO PREVENT DUST ACCUMULATION FROM GRINDING, ETC.
Other Precautions:FOLLOW ALL PROCEDURES IN ANSIZ49.1 & OSHA 29CFR1910.
PERIODIC MECIAL EXAMINATIONS ARE RECOM FOR INDIVIDUALS REGULARLY
EXPOSED TO DUST OR FUME. NOTE:TUNGSTEN, THORIUM OXIDE & ZIRCONIUM
OXIDE WERE REPOR TED IN THE EPA TSCA INVENTORY, 1980.

Respiratory Protection:NONE NEEDED FOR ELECTRODES AS RECD. REQD DURING
GRINDING (DRESSING ELECTRODE) OR WELDING, IF THE LIMITS ARE
EXCEEDED. FOR THORIATED ELECTRODES USE A DUST MASK (FOR
RADIONUCLIDE PARTICLES), SPEC CANIST ER GAS MASK OR SUPPLIED (SEE
INGRED 8)
Ventilation:LOC VENT IS RECOM FOR DRESSING THE ELCTRODES. FOR WELDING
FOLLOW THE OSHA REQUIREMENTS 29CFR1910 & (SEE INGRED 10)
Protective Gloves:IMPERVIOUS GLOVES .
Eye Protection:FACE PROT W/APPROP WELDING (SEE ING 11)
Other Protective Equipment:WHEN WELDING, WEAR FLAME RETARDANT CLOTHING
SUCH THAT SKIN IS NOT EXPOSED.
Work Hygienic Practices:NONE SPECIFIED BY MANUFACTURER.
Supplemental Safety and Health
EXPLO HAZ:FOR ORDINARY CONDITIONS THEY CAN BE CONSIDERED NON-FLAMMABLE.
HOWEVER, WELDING ARCS & SPARKS CAN IGNITE FLAMMABLE LIQUIDS, VAPORS
& COMBUSTIBLE SOLIDS. TUNGSTEN DUST (FROM GRINDING, FOR EG) MAY
PRESENT A MODERATE FIRE HAZARD IF ALLOWED TO ACCUMULATE.

HCC:N1
Boiling Pt:B.P. Text:10652F
Melt/Freeze Pt:M.P/F.P Text:6152F,3400C
Spec Gravity:19
Solubility in Water:INSOLUBLE
Appearance and Odor:TIN-WHITE METAL; NO ODOR.

Stability Indicator/Materials to Avoid:YES
AVOID STRONG ACIDS, BROMINE TRIFLUORIDE, FLUORINE, IODINE PENTAFLUORIDE
& MIXING LEAD OXIDE W/TUNGSTEN DUST.
Stability Condition to Avoid:THE ALLOYS ARE CHEMICALLY STABLE. AVOID
OXIDIZERS ESPECIALLY AT ELEVATED TEMPERATURES.
Hazardous Decomposition Products:NONE.

Waste Disposal Methods:DISPOSAL MUST BE IN ACCORDANCE W/FEDERAL, STATE
& LOCAL REGULATIONS .

Disclaimer (provided with this information by the compiling agencies):
This information is formulated for use by elements of the Department
of Defense. The United States of America in no manner whatsoever,
expressly or implied, warrants this information to be accurate and
disclaims all liability for its use. Any person utilizing this
document should seek competent professional advice to verify and
assume responsibility for the suitability of this information to their
particular situation.