SDS

SDS: Cast Iron Electrode USF
October 1, 2014
Page 6 of 9
The following limits can be used as guidance. Refer to Section 11 for more information about welding fumes.
CAS
Exposure Limit (mg/m
3
)
Substance NUMBER OSHA PEL ACGIH-TLV
Iron Oxide
1309-37-1
10 (as Fe)
5 (as Fe)
Nitric Oxide
10102-43-9
30
31
Nickel Oxide #
1313-99-1
1 (as Ni)
0.2 (as Ni)
Gaseous reaction products may include carbon monoxide and carbon dioxide. Ozone and nitrogen oxides may also be formed by radiation
from the arc. Monitor fume levels. One recommended way to determine the composition and quantity of fumes and gas to which workers
are exposed is to take an air sample inside the welder's helmet if worn, or in the worker's breathing zone (see ANSI/AWS F1.1, F1.2, F1.3,
F1.4, and F1.5, available from the "American Welding Society," 550 N.W. LeJeune Road, Miami, FL 33126).
Exposure limits are subject to change. Contact ACGIH, OSHA, NIOSH, and IARC for current values.
SECTION 9: PHYSICAL AND CHEMICAL PROPERTIES
APPEARANCE: Solid appearance, non volatile, wire with a flux coating. No odor. Not soluble in water.
MELTING POINT: > 1800 °F (> 1000 °C)
SECTION 10: STABILITY AND REACTIVITY
GENERAL: These items are only intended for normal welding purposes.
STABILITY: Stable under normal conditions.
HAZARDOUS POLYMERIZATION: Will not occur
REACTIVITY: Contact with chemical substances like acids or strong bases could cause generation of gas.
HAZARDOUS DECOMPOSITION OR BY-PRODUCTS:
Gaseous reaction products may include carbon monoxide and carbon dioxide. Ozone and nitrogen oxides may also be formed by
radiation from the arc.
Refer to applicable national exposure limits for the fume compounds. Reasonably expected fume constituents of the fume could
include complex oxides of iron and nickel. The employer should contact an occupational health professional for doing fume
monitoring to determine fumes emitted and to ensure compliance to the applicable country limits.
Other country exposure limits may be different and the appropriate country standards should be used.
SECTION 11: TOXICOLOGICAL INFORMATION
Welding fumes cannot be classified simply. The composition and quantity of both are dependent upon the metal being welded, the
process, procedure, and the electrode used. Other conditions which also influence the composition and quantity of the fumes and
gases to which workers may be exposed include: coatings on the metal being welded (such as paint, plating, or galvanizing), the
number of welders and the volume of the work area, the quality and the amount of ventilation, position of the welder's head with
respect to the fume plume, as well as the presence of contaminants in the atmosphere (such as chlorinated hydrocarbon vapors from
cleaning and degreasing activities). The International Agency for Research on Cancer has classified welding fumes as possibly
carcinogenic to humans (group 2B).
EFFECTS OF OVEREXPOSURE - Electric arc welding may create one or more of the following health hazards:
FUMES AND GASES can be dangerous to your health.
PRIMARY ROUTES OF ENTRY are the respiratory system. Other possible routes are eyes and/or skin contact.
PREEXISTING respiratory or allergic conditions may be aggravated in some individuals (i.e. asthma, emphysema).