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Carbo L-Ag 40 Sn (F) is a silver brazing rod, which is free of cadmium. It is
suitable for joints of steels, copper, bronze, brass and nickel alloys.
The silver solders are available with and without flux-coating Technical Data
Application hints: |
The base material should be clean of oxides, fat oil, grease and preferably
be metallic blank. An additional flux suitable for the base material should
be applied. For optimal penetration the base material sheets should be
adjusted properly with an equal gap and must be heated up to the below
shown melting temperature before infusing the brazing alloy. |
Soldering instruction |
In normal cases a neutral flame adjustment is required, but on zinc-plated
sheets and brass or depositing overlays light oxigin excess is optimal.
After brazing flux-residues should be removed and the open end of the
applied rod must be closed by hammering for avoiding uncontrolled
reactions of out coming flux
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Mechanical properties of all-weld metal ( typical values) |
Elongation I = 5 d |
Density g/cm³ |
Melting range Solidus Liquidus |
Working temperatur |
20 |
9.1 |
650°C 710°C |
690° C |
Tensile strength Rm N/mm² an St37 An St50 |
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350 430 |
11 Sm/mm² |
The mecanical properties can be decreased by soldering of carbon steel
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Analysis of pure deposit %Weld metal analysis % |
Ag |
Zn |
Sn |
Si |
Cu |
40 |
21 |
2 |
0.15 |
Rest |
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Dia/Length |
Pcs/packet |
Pcs/carton |
Kg/1000 |
kg/packet |
Kg/carton |
1.0 x 500 |
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1.0 |
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1.5 x 500 |
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1.0 |
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2.0 x 500 |
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1.0 |
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3.0 x 500 |
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1.0 |
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Materials Safety Data Sheet
01. Product and Company Identification: |
Supplier: |
Carbo-Weld Schweissmaterialien GmbH |
Address: |
Im Hasseldamm 21, 41352 Korschenbroich, Germany |
Tel: |
0049 2161 56483-0 |
Fax: |
0049 2161 56483-10 |
Mail: |
info@carboweld.de |
Web: |
www.carboweld.de |
Responsible: |
Quality Management technik@carboweld.de |
Date of issue : |
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Product name: |
CARBO L-Ag 40 Sn |
Application: |
Brazing |
Material-No.: |
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International Standards |
EN 1044: |
Ag 105 |
ISO 3677 : |
B-Ag40CuZnSn- 650/710 |
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02. Hazards Identification |
Emergency Overview: |
Coated metal rods in varying colours. This product
is normally not considered hazardous as shipped.
Gloves should be worn when handling to prevent
contaminating hands with product dust. This prod-
uct contains nickel, which is classified as a skin
sensitizer and a
suspect carcinogen. This product contains titanium
dioxide which is possibly carcinogenic. This prod-
uct contains quartz, but normally not in inhaling
fraction. Quartz can cause silicosis and may cause
cancer. Avoid eye contact or inhalation of dust
from this product. Skin contact is normally no haz-
ard but should be avoided to prevent possible al-
lergic reactions. Persons with a pacemaker should
not go near welding or cutting operations until they
have consulted their doctor and obtained informa-
tion from the manufacturer of the device. When
this product is used in a welding process, the most
important hazards are heat, radiation, electric
shock and welding fumes
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Heat: |
Spatter and melting metal can cause burn injuries and start fires. |
Radiation: |
Arc rays can severely damage eyes or skin. |
Electricity: |
Electric shock can kill |
Fumes: |
Overexposure to welding fumes may result in symptoms like metal
fume fever dizziness, nausea, dryness or irritation of the nose, throat or
eyes. Chronic overexposure to welding fumes may affect pulmonary
function. Prolonged inhalation of nickel and chromium compounds
above safe exposure limits can cause cancer. Overexposure to manganese
and manganese compounds above safe exposure limits can
cause irreversible damage to the central nervous system, including the
brain, symptoms of which may include slurred speech, lethargy, tremor,
muscular weakness, psychological disturbances and spastic gait. .
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03. Composition/ Information on Ingredients |
This product is a preparation of core wire with extruded coating |
Core wire type: Ag40Sn |
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Coating Ingredients: |
Material |
Weight % |
CAS# |
EINECS# |
Copper |
21 - 23 |
7440-50-8 |
231-159-6 |
Zinn |
4 -.6 |
7440-31-5 |
231-141-8 |
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(1) Hazard Classification according to European Council Directive 67/87/EWG, for R-phrases see Section 16.
(2) Evaluation according to the International Agency for Research on Cancer. 1- Carcinogenic to humans.
(3) Classification according to the 11th report on Carcinogens, published by the US- National Toxicology program
(4) Occupational Safety & Health Administration, USA
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04. First Aid Measures |
Inhalation |
If breathing has stopped, perform artificial respiration and obtain medical
assistance immediately ! If breathing is difficult, provide fresh air
and call physician.
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Eye contact: |
For radiation burns due to arc flash, see physician. To remove dusts or
fumes flush with water for at least fifteen minutes. If irritation persists,
obtain medical assistance.
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Skin contact: |
For skin burns from arc radiation, promptly flush with cold water. Get
medical attention for burns or irritations that persist. To remove dust or
particles wash with mild soap and water. |
Electric shock: |
Disconnect and turn off the power. Use a nonconductive material to
pull victim always from contact with live parts or wires. If not breathing,
begin artificial respiration, preferably mouth-to-mouth. If no detectable
pulse, begin Cardio Pulmonary Resuscitation (CPR). Immediately call a
physician. |
General: |
Move to fresh air and call for medical aid. |
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05. Fire fighting measures |
No specific recommendations for welding consumables. Welding arcs and sparks can ignite combustible
and flammable materials. Use the extinguishing media recommended for the burning materials and
fire situation. Wear self- contained breathing apparatus as fumes or vapours may be harmful. |
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06. Accidental release measures |
Solid objects may be picked up and placed into a container. Liquids or pastes should be scooped up
and placed into a container. Wear proper protective equipment while handling these materials. Do not
discard as refuse.
Personal precautions: refer to section 8
Environmental precautions: refer to section 13 |
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07. Handling and storage |
Handling: |
Handle with care to avoid stings and cuts. Wear gloves when handling
welding consumables. Avoid exposure to dust. Do not ingest. Some individuals
can develop an allergic reaction to certain materials. Retain
all warning and identity labels. |
Storage: |
Keep separate from chemical substances like acids and strong bases,
which could cause chemical reactions. |
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08. Exposure controls/ Personal protection |
General: |
Avoid exposure to welding fumes, radiation, spatter, electric shock,
heated materials and dust. |
Engineering measures: |
Ensure sufficient ventilation, local exhaust, or both, to keep welding
fumes and gases from breathing zone and general area. Keep working
place and protective clothing clean and dry. Train welders to avoid contact
with live electrical parts and insulate conductive parts. Check condition
of protective clothing and equipment on a regular basis. |
Personal protective equipment: |
Use respirator or air supplied respirator when welding or brazing in a
confined space, or where local exhaust or ventilation is not sufficient to
keep exposure values within safe limits. Use special care when welding
painted or coated steels since hazardous substances from the coating
may be emitted. Wear hand, head, eyes, ear and body protection like
welders gloves, helmet or face shield with filter lens, safety boots,
apron, arm and shoulder protection. Keep protective clothing clean and
dry. Use industrial hygiene monitoring equipment to ensure that exposure
does not exceed applicable national exposure limits. The following
limits can be used as guidance. Unless noted, all values are for 8 hour
time weighted averages (TWA). For information about welding fume
analysis refer to section 10. |
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09. Physical and chemical properties |
Appearance: |
solid, non-volatile, with varying colour |
Melting point: |
650-710°C |
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10. Stability and reactivity |
General: |
This product is only intended for normal welding purposes. |
Stability: |
This product is stable under normal conditions. |
Reactivity: |
Contact with chemical substances like acids or strong bases could
cause generation of gas. When this product is used in a welding process,
hazardous decomposition products would include those from the
volatilization, reaction or oxidation of the materials listed in section 2
and those from the base metal coating. The amount of fumes generated
from manual metal arc welding varies with welding parameters
and dimensions, but is generally no more than 5 to 15 g/kg consumable. |
Fume analysis: |
Fumes from this product contain compounds of the following chemical
elements. The rest is not analyzed, according to available standards. |
Fume analysis: |
Fumes from this product contain compounds of the following chemical
elements. The rest is not analyzed, according to available standards. |
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Refer to applicable national exposure limits for fume compounds, including
those exposure limits for fume compounds found in section 8. A
significant amount of the chromium in the fumes can be hexavalent
chromium, which has a very low exposure limit in some countries.
Manganese and nickel have low exposure limits, in some countries,
that may be easily exceeded. Reasonably expected gaseous products
would include carbon oxides, nitrogen oxides and ozone. Air contaminants
around the welding area can be affected by the welding process
and influence the composition and quantity of fumes and gases produced.
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11. Toxicological information |
General: |
Inhalation of welding fumes and gases can be dangerous to your
health. Classification of welding fumes is difficult because of varying
base materials, coatings, air contaminations and processes. The International
Agency for Research or Cancer has classified welding fumes
as possibly carcinogenic to humans (Group 2B). |
Acute toxicity: |
Overexposure to welding fumes may result in symptoms like metal
fume fever, dizziness, nausea, dryness or irritation of the nose, throat
or eyes. |
Chronic toxicity: |
Overexposure to welding fumes may affect pulmonary function. Prolonged
inhalation of nickel and chromium compounds above safe exposure
limits can cause cancer. Overexposure to manganese and
manganese compounds above safe exposure limits cam cause irreversible
damage to the central nervous system, including the brain,
symptoms of which may include slurred speech, lethargy, tremor, muscular weakness, psychological disturbances and spastic gait. Prolonged
inhalation of titanium dioxide above safe exposure limits can
cause cancer. Inhalable quartz is a respiratory carcinogen however the
process of welding converts crystalline quartz to the amorphous form
which is not considered to be a carcinogen. |
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12. Ecological information |
Welding consumables and materials could degrade/ weather into components originating from the consumables
or from the materials used in the welding process. Avoid exposure to conditions that could
lead to accumulation in soils or groundwater. |
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13. Disposal considerations |
Discard any product, residue, disposable container or liner in an environmentally acceptable manner,
in full compliance with federal and local regulations. Use recycling procedures if available. USA
RCRA: Unused products or product residue containing chromium is considered hazardous waste if
discarded, RCRA ID characteristic Toxic Hazardous Waste D007. Residues from welding consumables
and processes could degrade and accumulate in soils and groundwater.
Welding slag from this product typically contains mainly the following components originating from the
coating of the electrode.
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14. Transport information |
No international regulations or restrictions are applicable. |
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15. Regulatory information |
General: |
Read and understand the manufacturer's instructions, your employer's
safety practices and the healthy and safety instructions on the label.
Observe any federal and local regulations. Take precautions when
welding and protect yourself and others. |
WARNING: |
Welding fumes and gases are hazardous to your health and may damage
lungs and other organs. Use adequate ventilation.
Electric shock can kill. Arc rays and sparks can injure eyes and burn
skin. |
First Aid: |
In case of high concentration of welding fume get a breath of fresh air,
wash eyes and skin with water for the removal of powder. Take first aid
measures in case of injuries produced by electrical arc radiation or electrical
shock and call a doctor immediately. |
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16. Other information |
General: |
Carbo Weld requests the users of this product to study this Safety data
sheet (SDS) and become aware of product hazards and safety information.
To promote safe use of this product a user should: notify its
employees, agents and contractors of the information on this SDS and
any product hazards/safety information. Furnish this same information
to each of its customers for the product. Request such customers to
notify employees and customers for the same product hazards and
safety information.
To the best of our knowledge, the information contained herein is accurate.
However, neither the above- named supplier, nor any of its subsidiaries,
assumes any liability whatsoever for the accuracy or completeness
of the information contained herein. Final determination of
suitability of any material is the sole responsibility of the user. All materials
may present unknown hazards and should be used with caution.
Although certain hazards are described herein, we cannot guarantee
that these are the only hazards that exist.
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USA:
Contact CARBO-WELD at www.carboweld.com or 0049 2161 564830 if you have questions about this SDS.
American National Standard Z49.1 .Safety in Welding and Cutting., ANSI/AWS F1.5 . Methods for Sampling
and analyzing Gases from Welding and Allied Processes., ANSI/AWS F1.1 .Method for Sampling Airborne Particles
Generated by Welding and Allied Processes., AWSF3.2M/F3.2 .Ventilation Guide for Weld Fume., American
Welding Society, 550 North Le Jeune Road, Miami Florida, 33135. Safety and Health Fact Sheets available
from AWS at www.aws.org
OSHA Publication 2206 (29 C.F.R. 1910), U.S. Government Printing Office, Superintendent of Documents, P.O.Box 371954, Pittsburgh, PA 15250-7954
American Conference of Governmental Hygienist (ACGIH), Threshold Limit Values and Biological Exposure
Indices, 6500 Glenway Ave., Cincinatti, Ohio 45211, USA.
NFPA 51B .Standard for Fire Prevention During Welding, Cutting and Other Hot Work. published by the Na-
tional Fire Protection Association, 1 Batterymarch Park, Quincy, MA 02169
UK:
WMA Publication 236 and 237, .Hazards from Welding fume., . The arc welder at work, some general aspects
of health and safety.
Germany:
Unfallverh¸tungsvorschriften BGV D1, .Schwei?en, Schneiden und verwandte Verfahren.
Canada:
CSA Standard CAN/CSA-W117.2-01 .Safety in Welding, Cutting and Allied Processes.
This product has been classified according to the Hazard criteria of the CPR and the SDS contains all the information required by the CPR.
R-phrases:
R40 - Limited evidence of a carcinogenic effect.
R43 - May cause sensitization by skin contact.
R45 - May cause cancer.
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