Common Name: TOOL STEEL: W-1, 0-1, A-2, A-6, D-2, H-13, S-7, M-2, ALLOY STEEL: C1018, 4142 MO
Manufacturer: PRECISION-MARSHALL STEEL
MSDS Revision Date: 8/1/2008
MSDS Format: No Format Specified
   
Grainger Item Number(s): 33C639, 33C640, 33C641, 33C642, 33C643, 33C644, 33C645, 33C646, 33C647, 33C648, 33C649, 33C650, 33C651, 33C652, 33C653, 33C654, 33C655, 33C656, 33C657, 33C658, 33C659, 33C660, 33C661, 33C662, 33C663, 33C664, 33C665, 33C666, 33C667, 33C668, 33C669, 33C670, 33C671, 33C672, 33C673, 33C674, 33C675, 33C676, 33C677, 33C678, 33C679, 33C680, 33C681, 33C682, 33C683, 33C684, 33C685, 33C686, 33C687, 33C688, 33C689, 33C690, 33C691, 33C692, 33C693, 33C694, 33C695, 33C696, 33C697, 33C698, 33C699, 33C701, 33C702, 33C703, 33C704, 33C705, 33C706, 33C707, 33C708, 33C709, 33C710, 33C711, 33C712, 33C713, 33C714, 33C715, 33C716, 33C717, 33C718, 33C719, 33C720, 33C721, 33C722, 33C723, 33C724, 33C725, 33C726, 33C727, 33C728, 33C729, 33C730, 33C731, 33C732, 33C733, 33C734, 33C735, 33C736, 33C737, 33C738, 33C739, 33C740, 33C741, 33C742, 33C743, 33C744, 33C745, 33C746, 33C747, 33C748, 33C749, 33C750, 33C751, 33C752, 33C753, 33C754, 33C755, 33C756, 33C757, 33C758, 33C759, 33C760, 33C761, 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33E584, 33E585, 33E586, 33E587, 33E588, 33E589, 33E590, 33E591, 33E592, 33E593, 33E594, 33E595, 33E596, 33E597, 33E598, 33E599, 33E601, 33E602, 33E603, 33E604, 33E605, 33E606, 33E607, 33E608, 33E609, 33E610, 33E611, 33E612, 33E613, 33E614, 33E615, 33E616, 33E617, 33E618, 33E619, 33E620, 33E621, 33E622, 33E623, 33E624, 33E625, 33E626, 33E627, 33E628, 33E629, 33E630, 33E631, 33E632, 33E633, 33E634, 33E635, 33E636, 33E637, 33E638, 33E639, 33E640, 33E641, 33E642, 33E643, 33E644, 33E645, 33E646, 33E647, 33E648, 33E649, 33E650, 33E651, 33E652, 33E653, 33E654, 33E655, 33E656, 33E657, 33E658, 33E659, 33E660, 33E661, 33E662, 33E663, 33E664, 33E665, 33E666, 33E667, 33E668, 33E669, 33E670, 33E671, 33E672, 33E673, 33E674, 33E675, 33E676, 33E677, 33E678, 33E679, 33E680, 33E681, 33E682, 33E683, 33E684, 33E685, 33E686, 33E687, 33E688, 33E689, 33E690, 33E691, 33E692, 33E693, 33E694, 33E695, 33E696, 33E697, 33E698, 33E699, 33E701, 33E702, 33E703, 33E704, 33E705, 33E706, 33E707, 33E708, 33E709, 33E710, 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33E837, 33E838, 33E839, 33E840, 33E841, 33E842, 33E843, 33E844, 33E845, 33E846, 33E847, 33E848, 33E849, 33E850, 33E851, 33E852, 33E853, 33E854, 33E855, 33E856, 33E857, 33E858, 33E859, 33E860, 33E861, 33E862, 33E863, 33E864, 33E865, 33E866, 33E867, 33E868, 33E869, 33E870, 33E871, 33E872, 33E873, 33E874, 33E875, 33J096, 33J097, 33J098, 33J099, 33J101, 33J102, 33J103, 33J104, 33J105, 33J106, 33J107, 33J108, 33J109, 33J110, 33J111, 33J112, 33J113, 33J114, 33J115, 33J116, 33J117, 33J118, 33J119, 33J120, 33J121, 33J122, 33J123, 33J124, 33J125, 33J126, 33J127, 33J128, 33J129, 33J130, 33J131, 33J132, 33J133, 33J134, 33J135, 33J136, 33J137, 33J138, 33J139, 33J140, 33J141, 33J142, 33J143, 33J144, 33J145, 33J146, 33J147, 33J148, 33J149, 33J150, 33J151, 33J152, 33J153, 33J154, 33J155, 33J156, 33J157, 33J158, 33J159, 33J160, 33J161, 33J162, 33J163, 33J164, 33J165, 33J166, 33J167, 33J168, 33J169, 33J170, 33J171, 33J172, 33J173, 33J174, 33J175, 33J176, 33J177, 33J178, 33J179, 33J180, 33J181, 33J182, 33J183, 33J184, 33J185, 33J186, 33J187, 33J188, 33J189, 33J190, 33J191, 33J192, 33J193, 33J194, 33J195, 33J196, 33J197, 33J198, 33J199, 33J201, 33J202, 33J203, 33J204, 33J205, 33J206, 33J207, 33J208, 33J209, 33J210, 33J211, 33J212, 33J213, 33J214, 33J215, 33J216, 33J217, 33J218, 33J219, 33J220, 33J221, 33J222, 33J223, 33J224, 33J225, 33J226, 33J227, 33J228, 33J229, 33J230, 33J231, 33J232, 33J233, 33J234, 33J235, 33J236, 33J237, 33J238, 33J239, 33J240, 33J241, 33J242, 33J243, 33J244, 33J245, 33J246, 33J247, 33J248, 33J249, 33J250, 33J251, 33J252, 33J253, 33J254, 33J255, 33J256, 33J257, 33J258, 33J259, 33J260, 33J261, 33J262, 33J263, 33J264, 33J265, 33J266, 33J267, 33J268, 33J269, 33J270, 33J271, 33J272, 33J273, 33J274, 33J275, 33J276, 33J277, 33J278, 33J279, 33J280, 33J281, 33J282, 33J283, 33J284, 33J285, 33J286, 33J287, 33J288, 33J289, 33J290, 33J291, 33J292, 33J293, 33J294, 33J295, 33J296, 33J297, 33J298, 33J299, 33J301, 33J302, 33J303, 33J304, 33J305, 33J306, 33J307, 33J308, 33J309, 33J310, 33J311, 33J312, 33J313, 33J314, 33J315, 33J316, 33J317, 33J318, 33J319, 33J320, 33J321, 33J322, 33J323, 33J324, 33J325, 33J326, 33J327, 33J328, 33J329, 33J330, 33J331, 33J332, 33J333, 33J334, 33J335, 33J336, 33J337, 33J338, 33J339, 33J340, 33J341, 33J342, 33J343, 33J344, 33J345, 33J346, 33J347, 33J348, 33J349, 33J350, 33J351, 33J352, 33J353, 33J354, 33J355, 33J356, 33J357, 33J358, 33J359, 33J360, 33J361, 33J362, 33J363, 33J364, 33J365, 33J366, 33J367, 33J368, 33J369, 33J370, 33J371, 33J372, 33J373, 33J374, 33J375
Manufacturer Model Number(s):



MSDS Table of Contents
Click the desired link below to jump directly to that section in the MSDS.
GENERAL INFORMATION 
PRODUCT IDENTIFICATION 
TYPICAL CHEMICAL COMPOSITION(1) 
PHYSICAL DATA 
FIRE AND EXPLOSION HAZARD DATA 
REACTIVITY DATA 
HEALTH HAZARD DATA 
FIRST AID AND MEDICAL EMERGENCY PROCEDURES 
OCCUPATIONAL EXPOSURE CONTROL MEASURES 
SPILL, LEAK, AND DISPOSAL INFORMATION 
ADDITIONAL OR MISCELLANEOUS INFORMATION 



MATERIAL SAFETY DATA SHEET


GENERAL INFORMATION 


MANUFACTURER:
PRECISION-MARSHALL STEEL CO.
WASHINGTON, PA

FOR ADDITIONAL INFORMATION, CONTACT: 724-222-2100

CREATION DATE: 02/93

REVISION DATE: 08/08


PRODUCT IDENTIFICATION 


PRODUCT NAME:
TOOL STEEL: W-1, 0-1, A-2, A-6, D-2, H-13, S-7, M-2
ALLOY STEEL: C1018, 4142 MODIFIED
STAINLESS STEEL: 410, 420, 440C

FORMULA: NA

SYNONYM(S): NA

CHEMICAL FAMILY: NA


TYPICAL CHEMICAL COMPOSITION(1) 


INGREDIENT (2)   CAS NO.     WT. %          PERMISSIBLE AIR LEVEL (3)
                                        OSHA PEL                ACGIH TLV

IRON             7439-89-6   BALANCE    10(4)                   5(4)

CHROMIUM         7740-47-3   .01-17.0   1.0(5)                  .05(5)

MOLYBDENUM       7439-98-7   .01-7.0    5                       5
                                           (SOLUBLE COMPOUNDS)
                                        15                      10
                                          (INSOLUBLE COMPOUNDS)

COBALT           7440-48-4   .01-1.0    0.1                     0.1

VANADIUM         7440-62-2   .01-5.0    0.1(6)                  .05(7)

NICKEL           7440-02-0   .01-1.0    1.0(8)                  1.0(8)

MANGANESE        7439-96-5   .25-3.0    5.0(9)                  1.0(10)

CARBON           7440-44-0   .05-3.0    NA                      NA

SILICON          7740-21-3   .01-2.0    15                      10
                                              (TOTAL DUST)
                                        5                       5
                                             (RESPIRABLE DUST)

ALUMINUM         7429-90-5   .01-1.0    15                      5(11)
                                              (TOTAL DUST)
                                        5
                                             (RESPIRABLE DUST)

COPPER           7440-50-8   .01-1.0    0.1(12)                 0.2(12)

TUNGSTEN         7440-33-7   .01-7.0    5(14)                   1.0
                                          (INSOLUBLE COMPOUNDS)
                                        1(14)
                                           (SOLUBLE COMPOUNDS)

TRACE ELEMENTS   NA          LT 1.0     NA                      NA

SEE END OF THIS MSDS FOR IMPORTANT ADDITIONAL TERMS AND CONDITIONS 
INCLUDING DISCLAIMER OF WARRANTIES.


PHYSICAL DATA 


PHYSICAL STATE: SOLID

APPEARANCE AND ODOR: GRAY METAL; ODORLESS

BOILING POINT: NA

MELTING POINT: 2800 F

SOLUBILITY IN WATER: NA

pH: NA

SPECIFIC GRAVITY: 7.6-7.8

VAPOR PRESSURE: NA

VAPOR DENSITY: NA

EVAPORATION RATE: NA

% VOLATILE BY VOLUME: NA


FIRE AND EXPLOSION HAZARD DATA 


NOT APPLICABLE


REACTIVITY DATA 


STABILITY: STABLE

INCOMPATIBILITIES (MATERIALS TO AVOID): ACIDS

HAZARDOUS DECOMPOSITION PRODUCTS:
WELDING AND BURNING ON THIS PRODUCT MAY CAUSE THE GENERATION OF A VARIETY 
OF NOXIOUS FUMES AND GASES (E.G., CARBON MONOXIDE, CHROMIUM FUME, ETC.)

POLYMERIZATION: WILL NOT OCCUR.


HEALTH HAZARD DATA 


HEALTH EFFECTS/SIGNS AND SYMPTOMS:

NOTE:

STEEL PRODUCTS IN THEIR USUAL PHYSICAL FORM DO NOT POSE ANY HEALTH HAZARDS.
HOWEVER, WHEN SUBJECTED TO WELDING, BURNING, GRINDING, CUTTING, ABRASIVE
BLASTING, HEAT TREATMENT, PICKLING, OR SIMILAR OPERATIONS, POTENTIALLY
HAZARDOUS FUMES OR DUSTS MAY BE EMITTED. DESPITE THE FACT THAT THE WELDING,
BURNING, ETC, OF STEEL IN THIS CATEGORY MAY PRODUCE FUMES CONTAINING
MANGANESE, SILICON, ALUMINUM, AND COPPER, THE AIR CONCENTRATIONS GENERATED
OF THESE COMPONENTS ARE EXPECTED TO BE EXTREMELY LOW. PARTICULAR ATTENTION
SHOULD BE DIRECTED TO THE OTHER CONSTITUENTS WHICH MAY BE PRESENT AT
SUBSTANTIAL LEVELS THE FOLLOWING IS A LIST OF FUMES OR DUSTS THAT MAY BE
GENERATED FROM THIS STEEL PRODUCT CATEGORY AND THE HEALTH EFFECTS 
ASSOCIATED WITH OVEREXPOSURE TO THEM:

IRON (Fe):
CARCINOGENICITY: NA
NTP: NO
IARC: NO
OSHA REGULATED: NO

SUBJECTING IRON AND ALLOYS CONTAINING IRON TO HIGH TEMPERATURES (SUCH AS
OCCURS DURING WELDING) WILL CAUSE THE FORMATION OF IRON OXIDE. LONG-TERM
EXPOSURE TO IRON OXIDE FUMES OR DUSTS HAS BEEN ASSOCIATED WITH A BENIGN 
LUNG CONDITION KNOW AS SIDEROSIS WHICH IS OBSERVABLE AS AN X-RAY CHANGE. NO
PHYSICAL IMPAIRMENT OF LUNG FUNCTION HAS BEEN LINKED TO SIDEROSIS.

CHROMIUM (Cr):
CARCINOGENICITY: YES
NTP: YES
IARC: YES
OSHA REGULATED: NO

THE TOXICITY AND HEALTH HAZARDS OF CHROMIUM ARE HEAVILY DEPENDENT UPON ITS
OXIDATION STATE. THE ELEMENTAL (AS IN THE METAL), DIVALENT, AND TRIVALENT
FORMS ARE OF VERY LOW TOXICITY. THE HEXAVALENT FORM (SUCH AS OCCURS IN
CHROMATES AND CHROMIC ACID) IS VERY TOXIC AND CAN PRODUCE BOTH ACUTE AND
CHRONIC EFFECTS. ADVERSE EFFECTS ON THE SKIN MAY INCLUDE ULCERATIONS,
IRRITATIVE DERMATITIS, AND ALLERGIC SKIN REACTIONS. ADVERSE EFFECTS ON THE
RESPIRATORY SYSTEM MAY INCLUDE BRONCHOSPASMS, EDEMA, HYPERSECRETION,
BRONCHITIS, IRRITATION, ALLERGIC ASTHMATIC REACTIONS, AND ULCERATION AND
PERFORATION OF THE NASAL SEPTUM. RESPIRATORY SYMPTOMS MAY INCLUDE COUGHING
AND WHEEZING, SHORTNESS OF BREATH, AND NASAL ITCH. EYE IRRITATION OR
INFLAMMATION CAN ALSO BE PRODUCED. EXPOSURE TO SOME HEXAVALENT CHROMIUM
COMPOUNDS HAVE ALSO BEEN SHOWN TO BE ASSOCIATED WITH AN INCREASED RISK OF
LUNG CANCER.

MOLYBDENUM (Mo):
CARCINOGENICITY: NA
NTP: NO
IARC: NO
OSHA REGULATED: NO

Mo AND ITS COMPOUNDS GENERALLY EXHIBIT A LOW ORDER OF TOXICITY; HOWEVER
SOLUBLE COMPOUNDS (SUCH AS MO TRIOXIDE) ARE CONSIDERABLY MORE TOXIC.
MOLYBDENUM TRIOXIDE MAY PRODUCE IRRITATION OF THE EYES, NOSE, AND THROAT. 
IN ANIMALS, SOLUBLE Mo COMPOUNDS HAVE ALSO CAUSED WEIGHT LOSS, DIARRHEA,
LOSS OF COORDINATION, PNEUMOCONIOSIS (ACCUMULATION OF PARTICLES IN THE
LUNGS), BREATHING DIFFICULTIES, ANEMIA, AND COLIC. ANIMAL DATA ALSO 
SUGGESTS THAT REPEATED EXPOSURES MIGHT BE ASSOCIATED WITH GOUT.
PNEUMOCONIOSIS WITH X-RAY FINDINGS AND SUBJECTIVE SYMPTOMS HAS BEEN 
OBSERVED IN A SMALL NUMBER OF WORKERS EXPOSED TO METALLIC MOLYBDENUM AND Mo
TRIOXIDE; HOWEVER, NO PHYSICAL IMPAIRMENT OF LUNG FUNCTION HAS BEEN LINKED
TO THIS CONDITION.

COBALT (Co):
CARCINOGENICITY: NA
NTP: NO
IARC: NO
OSHA REGULATED: NO

COBALT DUST AND FUME IS MILDLY IRRITATING TO THE EYES, SKIN, AND UPPER
RESPIRATORY TRACT. AN ALLERGIC DERMATITIS MAY BE PRODUCED ESPECIALLY IN 
SKIN AREAS SUBJECT TO FRICTION SUCH AS THE CREASES OF THE ELBOW, KNEE, 
NECK, AND ANKLES. INHALATION TO Co DUST AND FUME MAY RESULT IN AN
ASTHMA-LIKE RESPIRATORY DISEASE WITH SYMPTOMS SUCH AS COUGH AND SHORTNESS OF
BREATH. IN SOME INSTANCES, THIS CONDITION PROGRESSES TO INTERSTITIAL
PNEUMONIA WITH MARKED FIBROSIS. AS A RESULT, PERMANENT DISABILITY OR EVEN
DEATH MAY OCCUR.

VANADIUM (V):
CARCINOGENICITY: NA
NTP: NO
IARC: NO
OSHA REGULATED: NO

VANADIUM COMPOUNDS (ESPECIALLY V PENTOXIDE) ARE IRRITANTS TO THE EYES,
RESPIRATORY TRACT, AND, TO A LESS FREQUENT EXTENT, THE SKIN. EYE SYMPTOMS
MAY INCLUDE EXCESSIVE TEARING AND A BURNING SENSATION. SKIN RASHES (WHICH
MAY BE ALLERGIC IN NATURE) RESEMBLE ECZEMA AND MAY ITCH INTENSELY. 
EXCESSIVE INHALATION EXPOSURES EVEN AFTER BRIEF PERIODS MAY RESULT IN
INFLAMMATION OF THE NASAL PASSAGES, SORE THROAT, COUGH, TRACHEITIS,
BRONCHITIS, WHEEZING, AND CHEST PAIN. EXCESSIVE LONG-TERM OR REPEATED
EXPOSURES MAY RESULT IN MORE SEVERE EFFECTS SUCH AS PULMONARY EDEMA,
PNEUMONIA, CHRONIC BRONCHITIS, AND RECURRING EPISODES OF LABORED BREATHING.
WORKERS EXPOSED TO EXCESSIVE LEVELS OF VANADIUM OFTEN SHOW A GREENISH
DISCOLORATION OF THE TONGUE.

NICKEL (Ni):
CARCINOGENICITY: YES
NTP: YES
IARC: YES
OSHA REGULATED: NO

Ni FUMES AND DUSTS ARE RESPIRATORY IRRITANTS AND MAY CAUSE A SEVERE
PNEUMONITIS. SKIN CONTACT WITH NICKEL AND ITS COMPOUNDS MAY CAUSE AN
ALLERGIC DERMATITIS. THE RESULTING SKIN RASH IS OFTEN REFERRED TO AS 
"NICKEL ITCH." Ni AND ITS COMPOUNDS MAY ALSO PRODUCE EYE IRRITATION,
PARTICULARLY ON THE INNER SURFACES OF THE EYELIDS (I.E., THE CONJUNCTIVA).
ANIMAL AND/OR EPIDEMIOLOGY STUDIES HAVE LINKED NICKEL AND CERTAIN NICKEL
COMPOUNDS TO AN INCREASED INCIDENCE OF CANCER OF THE LUNGS AND NASAL
PASSAGES.

MANGANESE (Mn):
CARCINOGENICITY: NA
NTP: NO
IARC: NO
OSHA REGULATED: NO

Mn INTOXICATION IS USUALLY DUE TO THE OXIDE OR SALTS OF Mn, ELEMENTAL Mn
EXHIBITS VERY LOW TOXICITY. THE DUSTS AND FUMES CAN ACT AS MINOR IRRITANTS
TO THE EYES AND RESPIRATORY TRACT. BOTH ACUTE AND CHRONIC EXPOSURES MAY
ADVERSELY AFFECT THE CENTRAL NERVOUS SYSTEM (CNS) BUT SYMPTOMS ARE MORE
LIKELY TO OCCUR AFTER AT LEAST 1 OR 2 YEARS OF PROLONGED OR REPEATED
EXPOSURES. EARLY SYMPTOMS MAY INCLUDE WEAKNESS IN LOWER EXTREMITIES,
SLEEPINESS, SALIVATION, NERVOUSNESS, AND APATHY. IN MORE ADVANCED STAGES,
SEVERE MUSCULAR INCOORDINATION, IMPAIRED SPEECH, SPASTIC WALKING, MASK-LIKE
FACIAL EXPRESSION AND UNCONTROLLABLE LAUGHTER MAY OCCUR. MANGANESE FUMES
HAVE ALSO BEEN REPORTED TO RESULT IN METAL FUME FEVER, A FLU-LIKE SYNDROME
WITH SYMPTOMS SUCH AS DIZZINESS, CHILLS, FEVER, HEADACHE, AND NAUSEA. AN
INCREASED INCIDENCE OF PNEUMONIA, BRONCHITIS, AND PNEUMONITIS HAS BEEN
REPORTED IN SOME WORKER POPULATIONS EXPOSED TO MANGANESE. ANIMAL STUDIES
INDICATE THAT MANGANESE EXPOSURE MAY INCREASE SUSCEPTIBILITY TO BACTERIAL
AND VIRAL INFECTIONS.

SILICON (Si):
CARCINOGENICITY: NA
NTP: NO
IARC: NO
OSHA REGULATED: NO

THIS IS CONSIDERED TO BE A NUISANCE PARTICULATE BY ACGIH.

ALUMINUM (Al):
CARCINOGENICITY: NA
NTP: NO
IARC: NO
OSHA REGULATED: NO

PARTICLES OF ALUMINUM DEPOSITED IN THE EYE MAY CAUSE IRREVERSIBLE TISSUE
DAMAGE OF THE CORNEA. Al SALTS MAY CAUSE DERMATITIS, ECZEMA, 
CONJUNCTIVITIS, AND IRRITATION OF THE MUCOUS MEMBRANES OF THE UPPER
RESPIRATORY TRACT. LONG-TERM INHALATION EXPOSURE TO Al DUSTS OR FUMES HAS
BEEN ASSOCIATED WITH A FIBROTIC LUNG CONDITION KNOW AS SHAVER'S DISEASE;
HOWEVER, THE EVIDENCE FOR THIS IS NOT CONCLUSIVE SINCE AFFECTED WORKERS 
WERE EXPOSED TO OTHER SUBSTANCES (SUCH AS SILICA) AS WELL. SYMPTOMS OF THIS
CONDITION MAY INCLUDE SHORTNESS OF BREATH, COUGH, AND FATIGUE.

COPPER (Cu):
CARCINOGENICITY: NA
NTP: NO
IARC: NO
OSHA REGULATED: NO

INHALATION OF Cu FUME MAY CAUSE IRRITATION OF THE EYES, NOSE, AND THROAT 
AND A FLU-LIKE ILLNESS CALLED METAL FUME FEVER. SIGNS AND SYMPTOMS OF METAL
FUME FEVER INCLUDE FEVER, MUSCLE ACHES, NAUSEA, CHILLS, DRY THROAT, COUGH,
AND WEAKNESS. Cu FUME MAY ALSO PRODUCE A METALLIC OR SWEET TASTE. REPEATED
OR PROLONGED EXPOSURE TO Cu FUME MAY CAUSE DISCOLORATION OF THE SKIN AND
HAIR.

TUNGSTEN:
CARCINOGENICITY: NA
NTP: NO
IARC: NO
OSHA REGULATED: NO

CHRONIC EXPOSURE TO TUNGSTEN DUST HAS CAUSED RESPIRATORY DISORDERS
CHARACTERIZED BY COUGH, LABORED BREATHING, AND WHEEZING. THERE IS NO
CORRELATION BETWEEN THE ONSET OF SYMPTOMS, LENGTH OF EXPOSURE AND THE
DEVELOPMENT OF SCARRING IN THE LUNG TISSUE. DERMATITIS (INFLAMMATION OF THE
SKIN), PRIMARILY ON THE SIDES OF THE NECK, INNER FOREARM, AND THE BACKS OF
THE HANDS, WAS ALSO DETECTED. DUSTS OF TUNGSTEN POSE A HAZARD CONSIDERED TO
BE SOMEWHAT GREATER THAN THAT OF NUISANCE DUST.

USUAL ROUTE(S) OF ENTRY: INHALATION

MEDICAL CONDITIONS POSSIBLY AGGRAVATED:
CHRONIC DISEASES OR DISORDERS OF THE RESPIRATORY SYSTEM

CARCINOGEN INFORMATION:
NTP AND IARC CONSIDER (1) CHROMIUM AND CERTAIN CHROMIUM COMPOUNDS TO BE 
KNOW HUMAN CARCINOGENS AND (2) NICKEL AND CERTAIN NICKEL COMPOUNDS TO BE
PROBABLE HUMAN CARCINOGENS.


FIRST AID AND MEDICAL EMERGENCY PROCEDURES 


EYE CONTACT: NOT ANTICIPATED TO POSE A SIGNIFICANT EYE HAZARD.

SKIN CONTACT: NOT ANTICIPATED TO POSE A SIGNIFICANT SKIN HAZARD.

INHALATION:
REMOVE FROM EXCESSIVE EXPOSURE LEVELS UNLESS PROPER RESPIRATORY PROTECTION
IS WORN.

INGESTION: NOT CONSIDERED AN INGESTION HAZARD.


OCCUPATIONAL EXPOSURE CONTROL MEASURES 


ENGINEERING CONTROLS (VENTILATION, ETC.):
VENTILATION SHOULD BE SUFFICIENT TO MAINTAIN EXPOSURE LEVELS BELOW THE
APPLICABLE EXPOSURE LIMIT.

WORK PRACTICES (HANDLING AND STORAGE, ETC.):
ARC OR SPARK GENERATED WHEN WELDING OR BURNING ON THESE PRODUCTS COULD BE A
SOURCE OF IGNITION FOR COMBUSTIBLE OR FLAMMABLE MATERIALS.

EYE PROTECTION: NOT ANTICIPATED TO POSE A SIGNIFICANT EYE HAZARD.

SKIN PROTECTION: NOT ANTICIPATED TO POSE A SIGNIFICANT SKIN HAZARD.

RESPIRATORY PROTECTION:
WHEN ENGINEERING CONTROLS ARE NOT SUFFICIENT TO LOWER EXPOSURE LEVELS BELOW
THE APPLICABLE EXPOSURE LIMIT, USE A NIOSH-APPROVED RESPIRATOR FOR DUSTS 
AND METAL FUME WITHIN THE USE LIMITS OF THE RESPIRATOR.


SPILL, LEAK, AND DISPOSAL INFORMATION 


PROCEDURES TO FOLLOW IF MATERIAL IS RELEASED OR SPILLED: N/A

WASTE DISPOSAL METHOD(S):
ANY EXCESS PRODUCT CAN BE RECYCLED FOR FURTHER USE, DISPOSED IN A PERMITTED
HAZARDOUS WASTE LANDFILL, OR DISPOSED BY OTHER METHODS WHICH ARE IN
ACCORDANCE WITH LOCAL, STATE, AND FEDERAL REGULATIONS.


ADDITIONAL OR MISCELLANEOUS INFORMATION 


NONE

FOOTNOTES:

(1) CONCENTRATIONS MAY VARY SOMEWHAT BETWEEN BATCHES OR LOTS. WHERE 
POSSIBLE A CONCENTRATION RANGE IS INDICATED. OCCASIONALLY, HOWEVER, LEVELS
MAY EVEN FALL OUTSIDE OF THE USUAL CONCENTRATION RANGES.

(2) COMMON NAMES, IF APPLICABLE, APPEAR IN PARENTHESES FOLLOWING THE
CHEMICAL NAMES.

(3) ALL VALUES, UNLESS OTHERWISE SPECIFIED, REFER TO 8-HOUR TIME-WEIGHTED
AVERAGE CONCENTRATIONS AND UNITS ARE IN MG/M3.

(4) AS IRON OXIDE FUME.

(5) AS HEXAVALENT CHROMIUM COMPOUNDS.

(6) AS VANADIUM PENTOXIDE FUME.

(7) AS VANADIUM PENTOXIDE RESPIRABLE DUST AND FUME.

(8) AS NICKEL METAL.

(9) CEILING VALUE.

(10) AS MANGANESE FUME.

(11) AS ALUMINUM WELDING FUMES.

(12) AS COPPER FUME.

(13) AS COPPER MIST OR DUST.

(14) OSHA STEL

ABBREVIATIONS:
NA = NOT APPLICABLE
NE = NOT ESTABLISHED
UK = UNKNOWN (NO APPLICABLE INFORMATION WAS FOUND)
GT = GREATER THAN
LT = LESS THAN

ALL INFORMATION, RECOMMENDATIONS, AND SUGGESTIONS CONTAINED HEREIN ARE 
BASED UPON DATA BELIEVED TO BE CORRECT. HOWEVER, NO GUARANTEE OR WARRANTY 
OF ANY KIND, EXPRESSED OR IMPLIED, IS MADE BY PRECISION-MARSHALL STEEL
COMPANY WITH RESPECT TO THE INFORMATION PROVIDED.

EMPLOYERS SHOULD USE THIS INFORMATION ONLY AS A SUPPLEMENT TO OTHER
INFORMATION GATHERED BY THEM. SINCE THE ACTUAL USE OF THIS PRODUCT IS 
BEYOND OUR CONTROL, AND IT IS EACH EMPLOYER'S RESPONSIBILITY TO ASSURE THE
SAFETY AND HEALTH OF THEIR EMPLOYEES, PRECISION-MARSHALL STEEL COMPANY WILL
NOT ASSUME LIABILITY ARISING OUT OF THE USE OF THIS PRODUCT BY OTHERS.