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          MATERIAL SAFETY DATA SHEET

                            SECTION I            PRODUCT IDENTIFICATION



Product Type:                Fabricated tubular wire, metal and metal/flux cored, for open arc and Gas

                             Metal Arc Welding.

Product Name:                M7

Specification:               No AWS Specification





                           SECTION II            HAZARDOUS INGREDIENTS





IMPORTANT: This section covers the materials from which these products are manufactured. The fumes and

                    gases produced when welding with normal use of these products are covered in Section V.



        Hazardous

                                               OHSA PEL mg/m3                TL V mg/m3

                               Cas No.                                                              Weight %

       Compounds

  Titanium Dioxide            13463-67-7          5 (respirable)              10 (dust)                0-10



          Boron               7440-42-8                 15                   10 as B203               0 � 6.5

                                                                              1 (fume)

        Manganese             7439-96-5              1 (fume)                                         .5 - 25

                                                                               3 (stel)

          Silicon             7440-21-3           5 (respirable)              10 (dust)                0-3

                                                                            5 (insoluble)

        Tungsten              7440-33-7               None                                            0 - 65

                                                                             1 (soluble)

                                                                             0.5 (metal)

        Chromium              7440-47-3            0.5 (metal)                                        0 - 40

                                                                            0.05 (Cr VI)

                                                                              1 (metal)

          Nickel              7440-02-0             1 (metal)                                         0 - 20

                                                                            0.1 (soluble)

       Molybdenum             7439-98-7             5 (soluble)              5 (soluble)               0-8



        Vanadium              7440-62-2             0.5 (dust)         .05 as V2 O5 (as fume)         0 - 18



         Graphite             7782-42-5           5 (respirable)            2 (respirable)             0- 6



         Fluoride             7789-75-5                 2.5                   2.5 as F                 0-2

         Calcium

                              1317-65-3           5 (respirable)              10 (dust)                0�5

        Carbonate

           Iron               7439-89-6                 10                 5 (oxide fume)             35 - 95



        Columbium             7440-03-1                 15                       10                    0-8

CLG:    Ceiling Limit



                                    SECTION III           PHYSICAL DATA

STEL:    Short Tem Exposure Limit



FORM: Continuous Fabricated wire           MELTING POINT: 2150-2710 F COLOR: Dark grey metallic

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              SECTION IV              FIRE AND EXPLOSION HAZARD DATA



(Nonflammable) Welding arc and sparks can ignite combustibles and flammables. Refer to American

National Standard Z49.1, for fire prevention during the use of welding and allied procedures.

NFPA NUMERICAL CODES:                     Health Hazard � 0

                                          Fire Hazard � 1

                                          Reactivity Hazard � 0



                              SECTION V              REACTIVITY DATA



The term “hazardous� should be interpreted as a term required and defined in the OSHA Hazard

Communications Standard (29 CFR Part 1910.1200) and does not necessarily imply the existence of any

hazard. These products as shipped are stable, non hazardous, nonflammable, nonexplosive and

nonreactive

Hazardous Decomposition Products

Exposure limit: Welding fumes and gases cannot be classified simply. The composition and quantity of

both are dependent upon the metal being welded, the process, procedure and electrodes used. Other

conditions that 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 work area, the quality and amount of ventilation, the 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.)

When the electrode is consumed, the fume and gas decomposition products generated are different in

percent and form from the ingredients listed in Section II. Fume and gas decomposition products and not

the ingredients in the electrode, are important. The concentration of a given fume or gas component may

decrease or increase by many times the original concentration in the powder. Also, new compounds not

in the electrode may form. Decomposition products of normal operation include those originating from the

volatilization, reaction, or oxidation of the material shown in Section II, plus those from the base metal and

coating, etc., as noted above.

Reasonably expected fume constituents of these products would include complex oxides of iron,

manganese and silicon; secondarily complex oxides of chromium, nickel, molybdenum, titanium, calcium,

sodium and potassium.

The present OSHA PEL for hexavalent chromium (CR+6) is 0.05 mg/m3 that will result in a significant

reduction from the 5mg/m3 general welding fume (NOC) level. The limit of 0.05 mg/m3 for hexavalent

chromium in these electrodes comes from the limit shown in OSHA table Z-2, which is for 0.1 mg of Cr03

+ which calculates to 0.05 mg of Cr+6/m3.

OSH PEL for nickel metal and soluble compounds is 1 mg/m3. The ACGIH TLV for nickel metal is 1

mg/m3 and TLV for soluble compounds is 0.1 mg/m3. These limitations will also result in a significant

reduction from the 5 mg/m3 general welding fume (NOC) level.

Gaseous reaction products may include carbon monoxide and carbon dioxide.               Ozone and nitrogen

oxides may be formed by the radiation from the arc.

One recommended way to determine the composition and quantity of fumes and gases 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 ANI/AWS FI.1 “Method for Sampling Airborne Particles Generated by Welding and Allied Processes�

available from the American Welding Society, P.O. Box 351040, Miami, FL 33135.

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                         SECTION VI            HEALTH HAZARD DATA



Electric arc welding or oxy fuel welding may create one or more of the following health hazards:

FUMES AND GASES: can be dangerous to your health. COMMON ENTRY IS BY INHALATION.

SHORT TERM (ACUTE): over exposure to welding fumes may result in discomforts such as: dizziness,

nausea, or dryness or irritation of nose, throat, or eyes.

Chromates present in the fume can cause irritation of the respiratory system, damage to lungs and

asthma-like symptoms.

Nickel compounds in the fume can cause metallic taste nausea, tightness in the chest, fever and allergic

reactions.

Fluorides can cause pulmonary edema bronchitis.

LONG TERM (CHRONIC): over exposure to welding fumes can lead to siderosis (iron deposits in the

lung) and affect pulmonary function.

Long term over exposure to manganese compounds may affect the central nervous system. Symptoms

include muscular weakness and tremors similar to Parkinson s disease. Behavioral changes and

changes in handwriting may also appear. Employees exposed to manganese compounds should get

quarterly medical examinations for early detection of manganism.

Studies have shown that production workers exposed to hexavalent chromium compounds have an

increased incidence of lung cancers. Chromates may cause an ulceration and perforation of the nasal

septum. Liver damage and allergic skin rash have been reported. Chromium VI compounds are required

by OSHA to be considered carcinogenic.

Long term over exposure to nickel compounds may cause lung fibrosis or pneumoconiosis. Studies of

nickel refinery workers indicated a higher incidence of lung and nasal cancers. Nickel and its compounds

are considered as carcinogenic as required by OSHA.

Repeated over exposure to fluoride fumes may cause serious bone erosion and excessive calcification of

the bones and ligaments of the ribs, pelvis and spinal column. Fluorides may also cause skin rash.

Shielding gases such as argon, helium and carbon dioxide are asphyxiates and adequate ventilation must

be provided.

THRESHOLD LIMIT VALUE � The ACGIH 1985-86 recommended limit for welding fumes not otherwise

classified (NOC) is 5 mg/m3. TLV-TWA s should be used as a guide in the control of health hazards and

not as fine lines between safe and dangerous concentrations. See Section V for specific fume

constituents that may modify this TLV-TWA.

ARC RAYS - can injure eyes and burn skin.

HEAT RAYS � (infrared radiation from flame or hot metal) can injure eyes.

ELECTRICAL SHOCK � can kill.

NOISE � can damage hearing.

CARCINOGENICITY � Chromium and nickel and their compounds are on the IARC (International Agency

for Research on Cancer) list and the NTP (National Toxicology Program) list as posing a carcinogenic risk

to humans.

EMERGENCY AND FIRST AID PROCEDURES - Call for medical aid.                   Employ first aid techniques

recommended by the American Red Cross.

WARNING: This product may contain or may produce a chemical known to the State of California to

cause cancer. (California Health & Safety Code 25249.5 et seq.)

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          SECTION VII PRECAUTIONS FOR SAFE HANDLING AND

                USE/APPLICABLE CONTROL MEASURES

Read and understand the manufacturer s instructions and the precautionary label on the product. See

American National Standard Z49.1, Safety in Welding and Cutting published by the American Welding

Society, P.O. Box 351040, Miami, FL 33135 and OSHA Publication #2206 (29CFR1910). U.S.

Government Printing Office, Washington, D.C. 20401 for more details on many of the following.



VENTILATION � Use enough ventilation, local exhaust at the arc, or both, to keep the fumes and gases

below TLV s in the worker s breathing zone and the general area. Train the welder to keep his head out

of the fumes.



RESPIRATORY PROTECTION � Use respirable fume respirator or air supplied respirator when welding

in confines space or where local exhaust or ventilation does not keep exposure below TLV.



EYE PROTECTION - Wear helmet or use face shield with filter lens. As a rule of thumb, start with a

shade that is too dark to see the weld zone. Then go to the next lighter shade which gives sufficient view

of the weld zone. Provide protective screens and flash goggles, if necessary, to shield others.



PROTECTIVE CLOTHING � Wear head, hand and body protection which help to prevent injury from

radiation, sparks, and electrical shock. See ANSI Z49.1. At a minimum this includes welder s gloves and

a protective face shield, and may include arm protectors, aprons, hats, shoulder protection, as well as

dark substantial clothing. Train the weldor not to touch live electrical parts and to insulate himself from

work and ground.



PROCEDURE FOR CLEANUP OF SPILLS OR LEAKS � Not applicable.



WASTE DISPOSAL METHOD � Prevent waste from contaminating surrounding environment. Discard

any product, residue, disposable container or liner in an environmentally acceptable manner, in full

compliance with federal, state and local regulations.

The information herein is supplied in good faith, but no warranties are expressed or implied.

        For further information contact: Rankin Industries, Inc.

                                         8745 Production Ave.

                                         San Diego, CA 92121-2261

                                         858/684-5000 Fax 858/684-5008

        CAS No.        Chemical Abstracts Service Number

        OSHA           U.S. Department of Labor, Occupational Safety and Health Administration

        PEL            Permissible Exposure Level (1983)

        ACGIH          American Conference of Governmental Industrial Hygienists

        TLV            Threshold Limit Value (1987-88)

        TWA            Time Weighted Average

        STEL           Short Term Exposure Limit

        CLG            Ceiling Limit

        NOC            Not Otherwise Classified

        IARC           International Agency for Research on Cancer

        NTP            National Toxicology Program

        Revised August 22, 2006





 The information in this MSDS was obtained from sources, which we believe are reliable. The information is provided

 without any representation or warranty, express or implied. The conditions or methods of handling, storage, use and

 disposal of the product are beyond our control and may be beyond our knowledge. For this and other reasons, we do

 not assume responsibility and expressly disclaim liability for loss, damage or expense arising out of or in any way

 connected with the handling, storage, use or disposal of the product.