Material Safety Data Sheet

                                   *89-250-864/H*





SECTION 1 - PRODUCT IDENTIFICATION AND USE



PRODUCT IDENTIFIER: ARCAIR SLICE CUTTING ROD, UNCOATED

CATALOG NUMBERS: 43-049-002, -003, -005, -007, -008

PRODUCT USE: Exothermic Metal Cutting

MANUFACTURERS NAME: TWECO Products, Inc. EMERGENCY PHONE #: (316) 946-8308

STREET ADDRESS: 4200 West Harry St.       P.O. Box 12250

CITY: Wichita       STATE: Kansas         ZIP CODE: 67277

PREPARED BY: Dennis Wilson                PHONE NUMBER: (316) 946-8308

DATE PREPARED: July 1989                  DATE REVISED: January 4, 2000



SECTION 2 - HAZARDOUS INGREDIENTS



  HAZARDOUS INGREDIENTS     %/RANGE    CAS NUMBER         OSHA PEL     ACGIH TLV



    Mild Steel                99+      Not Listed           N/A      Fume = 5mg/M3

including:     Nickel        0.15      7740-02-0          1mg/m3       0.015mg/m3



 When placed into service with a welding power source, an intense electric arc

 is created generating fumes, gases, and ultra-violet rays which can damage

 the eyes, penetrate light clothing and burn the skin. When not in service,

 the rods pose no particular hazard.



             SECTION 313. SUPPLIER INFORMATION

 THIS PRODUCT DOES [x] DOES NOT [ ] CONTAIN TOXIC CHEMICALS SUBJECT TO THE

 REPORTING REQUIREMENTS OF SECTION 313 OF THE EMERGENCY PLANNING AND

 COMMUNITY RIGHT-TO-KNOW ACT OF 1986 AND OF 40 CFR 372.

      CAS NUMBER                 CHEMICAL NAME              %

      7740-02-0                    Nickel                  0.15%



             CALIFORNIA PROPOSITION 65 CHEMICALS

 This product contains 0.15% Nickel, a chemical known to the State of

 California to cause cancer.



SECTION 3 - PHYSICAL DATA



PHYSICAL STATE: Solid ODOR AND APPEARANCE: Rolled steel tube, no notable odor

VAPOR PRESSURE(mm Hg): N.App. VAPOR DENSITY(air=1): N.App. EVAPORATION RATE:

N.App.   BOILING POINT(F/C): N.App. FREEZING POINT(F/C): N.App.   pH: N.App.

SPECIFIC GRAVITY: N.App.      SOLUBILITY: Insoluble



SECTION 4 - FIRE AND EXPLOSION DATA



FLAMMABILITY: Yes [ ] No [X]    IF YES, MEANS OF EXTINCTION: Does not burn

readily     FLASHPOINT(F/C) AND METHOD: N.App.   FLAMMABLE LIMIT: N.App.

LEL: N.App.     UEL: N.App.     UNUSUAL FIRE AND EXPLOSION HAZARDS: None



N.App.: NON APPLICABLE; N.AV.: NOT AVAILABLE; N.EST.: NOT ESTABLISHED

N.F.P.A. RATING SYSTEM: 0 - INSIGNIFICANT; 1 - SLIGHT; 2 - MODERATE;

3 - HIGH; 4 - EXTREME

Health = 1     Flammibility = 0     Reactivity = 0     Special = none

WHMIS CLASSIFICATION: CLASS "D"      DIVISION 2        SUB-DIVISION "G"

                                 89-250-864                            Page 2





SECTION 5 - REACTIVITY DATA



CHEMICAL STABILITY: Yes [X] No [ ]    IF NO, CONDITIONS TO AVOID: N.App.

INCOMPATIBILITY WITH OTHER SUBSTANCES: Yes [ ] No [X]    IF YES, WHICH

ONES? None known HAZARDOUS POLYMERIZATION: Will Occur [ ] Will Not Occur [X]

CONDITIONS TO AVOID: N.App.   HAZARDOUS DECOMPOSITION PRODUCTS: Iron oxide

fumes in addition to those generated by materials being cut



SECTION 6 - HEALTH HAZARD DATA



ROUTE OF ENTRY:     SKIN CONTACT [ ]    SKIN ABSORPTION [ ]   EYE CONTACT [ ]

INHALATION [X]       INGESTION [ ]     U.V. EXPOSURE [X]



EFFECTS OF ACUTE/CHRONIC EXPOSURE TO PRODUCT : INHALATION: When cutting

certain materials (e.g., lead, cadmium, beryllium, etc.) airborne

concentration may exceed TLV's causing dryness of the throat, breathing

difficulty or unconsciousness.   VISUAL: Exposure to ultra-violet radiation

from a powered arc can result in keratonconjunctivitis (welders flash)

causing inflammation, blurred vision and headache.

CARCINOGENICITY: Yes     SIGNS AND SYMPTOMS OF EXPOSURE: Explained

above in "Effects of Acute/Chronic Exposure to Product"

MEDICAL CONDITIONS GENERALLY AGGRAVATED BY EXPOSURE: Possibly existing

respiratory conditions     EMERGENCY AND FIRST AID PROCEDURES:    INHALATION:

Remove to fresh air and seek medical attention. VISUAL: Consult a physician

- preferably an eye specialist.



SECTION 7 - PRECAUTIONS FOR SAFE HANDLING AND USE



LEAK AND SPILL    PROCEDURE: Pick up spent ends when cool.

WASTE DISPOSAL    METHOD: Solid landfill if local regulations allow.

PRECAUTIONS TO    BE TAKEN IN HANDLING AND STORING: Store in a low humidity

environment.       OTHER PRECAUTIONS: Avoid breathing vapors! Intense heat

generated when    in operation!



SECTION 8 - CONTROL MEASURES



RESPIRATORY PROTECTION: NIOSH-MESA determined for fume/dust protection

GLOVES: As used in conventional arc welding    RESPIRATOR: As required to

maintain below TLVs     EYE: Face shield; filter lens for U.V. protection

FOOTWEAR: Suitable for metal working    CLOTHING: As used in conventional

arc welding      OTHER: N.App.

VENTILATION: Preferred for fume/dust reduction      LOCAL EXHAUST: Preferred

for fume/dust reduction      MECHANICAL: To maintain below TLV's/PEL's

WORK/HYGIENIC PRACTICES: Operator trained to avoid electrical shock and U.V.

ray exposure.





THIS DATA IS OFFERED IN GOOD FAITH AS TYPICAL VALUES. THIS IS NEITHER AN

EXPRESSED NOR IMPLIED PRODUCT SPECIFICATION. RECOMMENDED HANDLING PROCEDURES

AND HYGIENE ARE BELIEVED TO BE ACCURATE, HOWEVER, THESE RECOMMENDATIONS SHOULD

BE REVIEWED IN THE SPECIFIC CONTEXT OF INTENDED USE AND DETERMINED APPROPRIATE

BY THE USER.