Solder Bar
Product Specification of Lead-free Solder Wire
Product Name: Lead-free Solder Wire
No.: TF-608A
- 1. Product Features
Pure tin ingots, whose proportion of natural tin with high purity and quality has reached 99.95%, are used as raw material in the process of Tongfang TF-608Aalloy Sn99%Ag0.3%Cu0.7% lead-free solder wires. Silver of high purity is also one of its components. Hi-tech multi-element composite environmental flux enjoys fast wettability due to its special rosin and active ingredients. The production process has little residue, transparency and complete inertness. Lead-free solder wires are processed strictly according to EU ROHS standards. It is a kind of low-residue core solder wires and suitable for cleaning-free soldering process. The production procedures are strict from selecting high quality pure tin to inspection on finished products, which guarantees the high weldability and quality of the products.
The advantage of Tongfang lead-free solder wire:
1. Short wetting time and good weldability;
2. No rosin splashing in tin solder;
3. Balanced rosin in the wire with good continuity;
4. No bad smell, little smoke and no toxic volatile gases.
5. Neat beautiful and smooth rolls;
- 2. Product Usages
Used for high-end electronic products in precise electronic equipment, printed circuits, micro-technology, aviation industry and soldering of metal coating. Used for electronic products in home appliances, automotive electronics, industrial electronics, fuses, lighting and hardware products.
- 3. Composition of Alloy (%)
Elements |
Sn |
Pb |
Cd |
Sb |
Cu |
Bi |
Fe |
Al |
As |
Ag |
|
Content Specifications (%) |
balance |
0.05 |
0.002 |
0.05 |
0.6-0.8 |
0.05 |
0.02 |
0.005 |
0. 3 |
0.28-0.32 |
Parameters of lead-free solder material
Fusion temperature(℃) |
Operating temperature(℃) |
Intensity of soldering head (δ/mpa) |
Resistivity Ρaverage/Ωm.10 |
Applicable processes |
217-227 |
350-400 |
18.8 |
0.127 |
Manual welding and tinning |
- 4. Physical Characteristics
Characteristics |
Sn99Ag0.3Cu0.7 |
Melting point, ℃ |
217-227 |
Tensile strength, MPa |
32 |
Elongation, % |
23 |
Hardness, HV |
14.3 |
Density, g/ cm3 |
7.40 |
Heat capacity, J/kg C |
0.17 |
Thermal expansion coefficient, 10-5/°C |
1.79×10-5@30-100℃ 2.30×10-5@100-150℃ |
Time of wetting, s |
0.72 |
Wetting power, mN/mm |
0.24 |
Residual Removal
Tongfang lead-free solder residue can be left safely on the board. If necessary, the residue can be removed with Tongfang special solvent, saponification agents or semi-aqueous cleaning agents.
- 5. Product Parameters
Physical characteristics |
Typical value |
Softening point |
71℃(160°F) |
Rosin level |
Set WW according to Feb Spec .LLL-R-626 |
Specific resistance of aqueous extraction |
>1×105Ω |
Fluorine composition |
N/A |
Halogen composition |
0.05-0.15% |
Surface insulation resistance |
>1×1011Ω |
EM |
Visual and electrical inspection |
J-STD-004 classification |
ROLO J-STD-004 |
IPC-TM-650 |
2.6.3.3 |
Drying test |
Qualified |
Corrosivity |
It passes copper mirror tests and copper plate tests. It is defined as type L in IPC-TM-650 copper mirror corrosion test. |
Expansion rate |
>80% |
Rosin composition |
1.2-3.5%. It is determined on customer’s requirements (The higher the rosin composition is, the better is the wetting and the faster the welding is. However, there would be more residue and smoke. The lower the rosin composition is, the slower is the wetting and welding is. Luckily, there would be less residue and smoke.) |
Storage life/storage temperature |
18 months/0℃-40℃ |
- 6. Others
Wire diameter: 0.3-4.0mm
Package: 10 rolls per box
Packaging signs: alloy name, flux content, wire diameter, model, net weight of each box and production date.
Health and safety: Tongfang lead-free and cleaning-free solder wires are classified as non-toxic products. However, it will produce some decomposers and reactant gases in welding. Those gases should be exhausted completely to ensure the safety and comfort of operators. For detailed health and safety information, please see the Material Safe Data Sheet.
Notes: store in dry, ventilated and damp-proof environment.
Material Safe Data Sheet
- 1. Information of the Manufacturer or Supplier
Name of manufacturer or supplier: Shenzhen Tongfang Electronic New-MaterialsCo., Ltd. |
|
Address: No. 65 Baigehu Xincun Industrial Park, Zhangkengjing Community, Guanlan Sub-district, Bao’an District, Shenzhen Tele:0755-29805588 29805618 Fax:0755-29805568 |
- 2. Relevant Hazardous Information
Major Hazard Effect |
Hazard warning for health: Inhalation: When molten solder temperature exceeds 500 ℃, it may produce steam, which may cause anemia, insomnia, weakness, constipation, nausea, abdominal pain and so on after inhalation. More severely, it may cause damage to central nervous system, reproductive system and digestive system. Skin contact: it may burn the skin when melted in high temperature. Ingestion: show a symptom of indigestion. |
Hazard warning for environment: (blank) | |
Special harm: (blank) | |
Main symptoms: dizziness, headache, skin allergies etc. | |
- 3. Supplied Material Names and Main Ingredient Information
Material name: lead-free solder wire (Sn99Ag Cu0.7) | ||
Hazardous ingredient |
Ingredient percent |
Hazardous substance classification |
tin(Sn) |
little |
Class IX, no other hazards |
copper(Cu) |
0.6-0.8% |
Class IX, no other hazards |
Silver(Ag) |
0.28-0.32% |
|
- 4. First-Aid Measures
|
Different first aid measures: Inhalation: Inhalation of vapor may cause difficulty breathing. Take the sufferer to places where there is better air circulation and see doctor immediately. |
|
Skin contact: Wash with soap water. If the skin is burned, cool it with cold water. If there are skin allergies, go to doctor for treatment. Ingestion: see doctor immediately. |
Main hazardous situation: (identical to Section 3 Hazard warning for health, Relevant Hazardous Information) |
Protection of first-aiders: (blank) |
Tips for the doctor: (blank) |
- 5. Fire Extinction Measures
Applicable fire extinguishers: CO2, extinguishing powder or foam fire extinguishers. When they are used to put out the fire, avoid burning due to splashing of welding material with high temperature. |
Possible special situation in fire-fighting: Molten alloy may cause severe splashing under high temperature with water, which may get operators burned. |
Special protective equipment for firefighters: Firefighters must wear fireproof clothing and portable respirators. |
- 6. Measures against Leak
Personal protection: Molten solder should be cooled to room temperature before treatment to avoid burning. |
Environmental protection: Recycle leakage. |
Methods for cleaning up: Scrape and recycle after cooling. |
- 7. Safe Disposal and Storage Methods
Disposal: Operating temperature should be less than 500 ℃. Operators should wear protective equipment to avoid inhaling vapor and dust. Don’t use dry brooms or spray high temperature gas in clean, because it may result in flying dust. |
Storage: Storage should be waterproof, and anti-pollution. The package should be labeled with the identification of hazards. |
- 8. Exposure Control
Engineering control: Local ventilation and overall air regenerating devices should be installed to control exposure concentration lower than permissible concentration average. |
|
Control factor: TWA: tin -2.0mg/m3; copper-0.1mg/ m3 ATEL: (blank) CEILING: (blank) Biotic index: (blank) |
|
Personal protective equipment Respiratory protection: dust mask; hand protection: protective gloves; Eye protection: goggles, eyewash Skin and body protection: protective clothing and protective footwear |
Sanitary measures: After operation, wash hands before eating. No eating, smoking or making up is allowed in operation. Operators can’t wear contact lenses. |
- 9. Physical and Chemical Characteristics
Physical state: metal solids |
Form: bar |
Color: silver-grey |
Odor: N/A |
PH value: N/A |
Boiling point: (blank); Melting point: 217 ℃-227℃ |
Decomposition temperature: N/A |
Flash point: N/A |
Spontaneous temperature: N/A |
Explosion limits: N/A |
Vapor pressure: N/A |
Vapor density (air density=1): N/A |
Evaporation rate (butyl acetate=1): N/A |
Can’t be molten |
Specific gravity (water=1): 7.3 |
|
- 10. Stability and Reactivity
Stability: stable |
Special conditions of hazardous reaction: (blank) |
Conditions to avoid: heat, flame and moisture soaking |
Incompatibility: strong oxidizing agents, high concentration acids and hydrogen peroxide |
Hazardous decomposition: metal dust and vapor |
- 11. Toxicological Information
Acute toxicity:(blank) |
Sensitization: (blank) |
Chronic toxicity or long-term toxicity: (blank) |
Exceptional effects: (blank) |
- 12. Ecological Information
Possible environment impact/move: soil move: (blank) move in the water: (blank) |
- 13. Waste Disposal Methods
Waste disposal methods: recycle, refine, or dispose the wastes on disposal regulations. |
- 14. Transport Information and Delivery Regulations
Domestic transport regulation:(blank) |
Special transport methods and notes: (blank) |
Delivery period: deliver at the date regulated by the contract or order |
- 15. Other Information
|
Hazardous material information system level Health: 0 Flammability: 0 Reactivity: 0 Personal protection: X |
- 16. Legal Information
Applicable regulation: the general regulations of dangerous and hazardous materials |
Filing Department: Quality-Control Department |
Filing Date: January 16, 2013 |
Notes:
- 1. This document is only used for reference and should not be used as basis of legal responsibilities.
- 2. While using the item, please customize the most suitable procedure or control methods according to different techniques to guarantee the stability of quality.
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