How to Choose the Correct Solder as per Application

How to identify the best suitable Solder Quality

Lets start with basics of Solder composition available in the market like we have solder in the combination of Tin (SN), Lead (PB), Copper (CU) and Silver (AG).

Normal Tin/Lead Solder ratios commonly used are (SN/PB): 10/90, 15/85, 20/80, 25/75, 30/70, 35/65, 40/60, 45/55, 50/50, 55/45, 60/40 and 63/37. 

These are also referred as Leaded Solder Qualities.

Now the days consciousness related to environment and human health have increased thus companies have started using ROHS , NON-Leaded Solder Wires with their application, usually governed by European Norms and used by exporting companies in their products and by MNC's.

Normal Lead-Free Solder wire composition available are Tin/Copper (SN/CU), Tin/Silver/Copper in the ratio of 99.3/0.7 (SN/CU), 99/1 (SN/CU). 99/0.3/0.7 (SN/AG/CU) and 96.5/3/0.5 (SN/AG/CU) aka SAC 305.

SAC 307 also primarily used these days 96.3/3/0.7.

Today, with technological advancement and to reduce cost Antimonial, bismuth containing solder are produced which are hard and have high melting temperature thus doesn't suit every application but are economical than normal silver containing solder wires.

There are many factors that determine the choice of suitable solder quality:

B.I.C 63/37 No Clean Flux Core Solder Wire

63/37 No Clean Wire

No-Clean cored wires was developed to eliminate the use of solvents for post-solder cleaning of circuit board assemblies in electronic industry. The No-Clean flux used in the wire core is completely halide-free. It provides excellent solderabilty and high reliability. The flux residues requires no-cleaning due to physio-chemical characteristics of the core flux.

Available in 16, 18, 20, 22 SWG (Wire Diameter/Thickness)

Made to Order in 24 SWG and 26 SWG

Melting Temp. 

SOLIDUS: 183*c

LIQUIDUS: 183*c

Usage:

1. Application which does not require product to sustain high temperature.

2. Application which require Premium QUALITY shine in Solder joints.

3. For PCB Soldering and Product adhering EU Standards.

4. Shrink pack Reels for best appeal and Protection of the product from oxidation.

5. Available in Different Flux Core Ratios. (1.2 % to 2.4%)

6. Less Smoke and subtle smell than any other brand.

Specs:

1. High Solder Flow, Non-Corrosive, Non-Conductive

2. Works @ Fast Soldering. Helps to achieve high Efficiency.

3. Less smoke compared to other brands.

4. Resin Activated Wire Solder.

Application:

For Electronic GRADE Application Use Only.

- One should bear that Flow is always less compared to Rosin Cored Wire.

- Flux does not required to be cleaned (exceptions are there)

More Details:

Recommended Iron Wattage.

10 Watt for 22 SWG

25 watt for 20 SWG

35 Watt for 18 SWG

65 Watt for 16 SWG

About No-Clean Flux Wire:

Soldering requires flux to removes oxides and to promote wetting. Rosin (made from tree sap) is one flux material that has long been popular, and comes in various strengths- RMA (Rosin Mildly Activated) or RA (Rosin Activated). 

We ensure that you can leave the flux on the board under fairly benign conditions and experience bears that out (it only becomes active = corrosive) at elevated temperatures, however most manufacturers will clean the board for cosmetic reasons and to allow inspection. Cleaning often involves the use of petroleum solvents (PCB Cleaning Solvents)- for example by vapor degreasing or just scrubbing.

No clean fluxes allegedly don't need to be cleaned and can be left on the board, however many of have had problems with no-clean processes having relatively conductive residue. The residue is ironically extremely hard to remove, much more difficult than the two above-mentioned processes, more like 'can't clean'. Think twice about this kind of flux if you're thinking of sensitive analog boards that have high impedance. Even circuits you may not think of as being analog such as RTCC chips with an external crystal may be affected.

Safest for sensitive boards is rosin flux followed by a thorough cleaning process(using PCB Cleaning Solvents).

No clean flux often has enough "low" resistance that it might influence sensitive circuits, so in case you can withstand with a few hundreds of megohms resistance between anything, leave it on. If that is too low, clean it up.

CONTACT US FOR PURCHASE.

Also Visit our other Solder Wire/Sticks range:

 Sharp Wire Solder (No Clean /Urea Flux Wire),         Lumax Wire Solder,        60/40 Standard Wire,                

  60/40 Premium Wire,              60/40 No Clean Wire Solder,          63/37 Quality Wire,                                                                            

Best Regards,

B.I.C Solder Team

BAJAJ INSULATION CO. MANUFACTURES SOLDER WIRE, SOLDER STICKS, SOLDER FLUXES, PCB CLEANING SOLVENTS, DIP SOLDERING MACHINES, TIN-COPPER WIRE, TIN-ZINC WIRE AND ALLIED CHEMICALS IN DELHI.

B.I.C 63/37 Rosin Core WIRE SOLDER and Sticks/Rods

RA Type rosin cored wire is available in all type of solder alloys, different sizes and varying core percentages. It is used for Soldering any kind of electronic assemblies. It provides instant wetting and excellent capillary action which results in less rejections and few touch-ups.

This type of wire is suitable for soldering oxidized and difficult to solder metals. The flux residue left after soldering is considered to be non-conductive non-hygroscopic and can be removed by, solvent cleaning process.

Available in 10, 12, 14, 16, 18, 20, 22 SWG (Wire Diameter/Thickness)

                                         Custom Made Order in 24 SWG and 26 SWG

Melting Temp.

SOLIDUS: 183*c

LIQUIDUS: 183*c

Specific Gravity: 8.4

Color: Silver white alloy wire

Boiling Point: Hazardous concentration of lead are given off at temperature above 450*C

Usage:

1. Application which require product to sustain high temperature.

2. Application which require Premium QUALITY shine in Solder joints.

5. Shrink pack Reels for best appeal and Protection of the product.

6. Available in Rosin Core and No Clean Core.

7. Available in Different Flux Core Ratios. (2 % to 2.8%)

8. ABOVE QUALITY IS IN HIGH QUALITY ROSIN CORE FLUX.

9. Less Smoke than any other brand.

Specs:

1. High Solder Flow, Non-Corrosive, 

2. Works @ Fast Soldering. Helps to achieve high Efficiency.

3. Less smoke compared to other brands.

4. Activated Wire Solder.

Application:

For Electronic GRADE Application Use Only.

For Wave Soldering.

More Details:

Recommended Iron Wattage.

10 Watt for 22 SWG

25 watt for 20 SWG

35 Watt for 18 SWG

65 Watt for 16 SWG

B.I.C PURE 63/37 RATIO STICKS

 

Details:

Our technologically advance Nitrogen blast furnace process coupled with dross reducing treatment while producing solder bars ensure less oxide solder rods to ensure min. dross formation at your end to save hugely on your production cost and efficiency.

1. PURE Oxide-Free Stick/Rod which means min. Dross bars. 

    One cannot ascertain Dross in Stick from outside. Regular bars contain 30% Dross inside it. Purchasing Cheap Rod which is not Oxide free means paying for Dross at the price of Solder.

2. Strong Physical Joints.

4. Require at least 230*C to melt in Dip Machine

5. Save on your Solder cost by upto 50%. Refer this link Anti-DrossFormulation

Contact us for Purchase.

Also Visit our Premium Solder Wire/Sticks range:

 Sharp Wire Solder (No Clean /Urea Flux Wire),              Lumax Wire Solder,              60/40 Standard Wire,                

  60/40 Premium Wire,              60/40 No Clean Wire Solder,                            63/37 No Clean Wire.

Best Regards,

B.I.C Solder Team

BAJAJ INSULATION CO. MANUFACTURES SOLDER WIRE, SOLDER STICKS, SOLDER FLUXES, PCB CLEANING SOLVENTS, DIP SOLDERING MACHINES, TIN-COPPER WIRE, TIN-ZINC WIRE AND ALLIED CHEMICALS IN DELHI.

B.I.C 60/40 No Clean WIRE SOLDER

B.I.C 60/40 No Clean Core WIRE SOLDER AND STICKS/RODS

Quality No. 1

Available in 16, 18, 20, 22 SWG (Wire Diameter/Thickness)

                                         Custom Made Order in 24 SWG and 26 SWG

Melting Temp. 185 *C

Usage:

1. Application which do not require product to sustain high temperature.

2. Application which require Best QUALITY shine in Solder joints.

3. For PCB Soldering and Product adhering EU Standards.

4. Shrink pack Reels for best appeal and Protection of the product from Oxidation.

5. Available in Different Flux Core Ratios. (1.2 % to 2.4%)

6. Less Smoke and subtle smell than any other brand.

Specs:

1. High Solder Flow, Non-Corrosive, Non-Conductive

2. Works @ Fast Soldering. Helps to achieve high Efficiency.

3. Less smoke compared to other brands.
4. Resin Activated Wire Solder.

Application:
For Electronic GRADE Application Use Only.

- One should bear that Flow is always less compared to Rosin Cored Wire.

- Flux does not required to be cleaned (exceptions are there)

- Electronics adhering EU standards.

More Details:

Recommended Iron Wattage.

10 Watt for 22 SWG

25 watt for 20 SWG

35 Watt for 18 SWG

65 Watt for 16 SWG

About No-Clean Flux Wire:

Soldering requires flux to removes oxides and to promote wetting. Rosin (made from tree sap) is one flux material that has long been popular, and comes in various strengths- RMA (Rosin Mildly Activated) or RA (Rosin Activated). 

We ensure that you can leave the flux on the board under fairly benign conditions and experience bears that out (it only becomes active = corrosive) at elevated temperatures, however most manufacturers will clean the board for cosmetic reasons and to allow inspection. Cleaning often involves the use of petroleum solvents(PCB Cleaning Solvents)- for example by vapor degreasing or just scrubbing.

No clean fluxes allegedly don't need to be cleaned and can be left on the board, however many of have had problems with no-clean processes having relatively conductive residue. The residue is ironically extremely hard to remove, much more difficult than the two above-mentioned processes, more like 'can't clean'. Think twice about this kind of flux if you're thinking of sensitive analog boards that have high impedance. Even circuits you may not think of as being analog such as RTCC chips with an external crystal may be affected.

Safest for sensitive boards is rosin flux followed by a thorough cleaning process(using PCB Cleaning Solvents).

No clean flux often has enough "low" resistance that it might influence sensitive circuits, so in case you can withstand with a few hundreds of megohms resistance between anything, leave it on. If that is too low, clean it up.

Contact us for Purchase.

Also Visit our Premium Solder Wire/Sticks range:

63/37 Quality Wire,  63/37 No Clean Wire.

Best Regards,

B.I.C Solder Team

BAJAJ INSULATION CO. MANUFACTURES SOLDER WIRE, SOLDER STICKS, SOLDER FLUXES, PCB CLEANING SOLVENTS, DIP SOLDERING MACHINES, TIN-COPPER WIRE, TIN-ZINC WIRE AND ALLIED CHEMICALS IN DELHI.

B.I.C 60/40 STANDARD WIRE SOLDER AND STICKS/RODS

B.I.C 60/40 Standard WIRE SOLDER AND STICKS/RODS

Quality No. 1

Available in 18, 20, 22 SWG (Wire Diameter/Thickness)

Made to Order in 24 SWG and 26 SWG

Melting Temp. 205 *C

Usage:

1. Application which require product to sustain high temperature.

2. Application which require Best QUALITY shine in Solder joints.

4. Shinning better than our Lumax Label Wire Solder.

5. Shrink pack Reels for best appeal and Protection of the product from Oxidation.

6. Available in Rosin Flux Core.

7. Available in Different Flux Core Ratios. (2 % to 2.8%)

8. ABOVE QUALITY IS IN HIGH QUALITY ROSIN CORE FLUX.

9. Less Smoke than any other brand.

10. Tin-Lead (60/40) Ratio composition with added Chemicals manufactured with Refined material to make product more economical.(Melting Temp is 15*C higher than our 60/40 Premium Solder Wire)

11. Shine is approximately equivalent to our 60/40 Premium Label but gets a little dull on Cleaning Joints with IPA.

12. Accurate 60/40 Ratio Composition.

Economical than our Premium 60/40 Wire Solder

Specs:

1. High Solder Flow, Non-Corrosive, 

2. Works @ Fast Soldering. Helps to achieve high Efficiency.

3. Less smoke compared to other brands.
4. Activated Wire Solder.

Application:
For Electronic GRADE Application Use Only.

More Details:

Recommended Iron Wattage.

10 Watt for 22 SWG

25 watt for 20 SWG

35 Watt for 18 SWG

65 Watt for 16 SWG

B.I.C PURE 60/40 RATIO STICKS

Details:

1. PURE Oxide-Free Stick/Rod which means min.Dross rod. 

    One cannot ascertain Dross in Stick from outside.Regular Rod contain 30% Dross inside      it.Purchasing Cheap Rod which is not Oxide free means paying for Dross at the price of Solder.

2. Strong joints and sustain high temperature and shocks.

4. Require at least 230*C to melt in Dip Machine
5. Shinning way better than our Lumax Label Sticks

Contact us for Purchase.

Also Visit our Premium Solder Wire/Sticks range:

             

  60/40 Premium Wire,              60/40 No Clean Wire Solder,          63/37 Quality Wire,                                                                                 63/37 No Clean Wire.

Best Regards,

B.I.C Solder Team

BAJAJ INSULATION CO. MANUFACTURERS SOLDER WIRE, SOLDER STICKS, SOLDER FLUXES, PCB CLEANING SOLVENTS, DIP SOLDERING MACHINES, TIN-COPPER WIRE, TIN-ZINC WIRE AND ALLIED CHEMICALS IN DELHI.

B.I.C 60/40 PREMIUM WIRE SOLDER AND STICKS/RODS

B.I.C 60/40 Premium WIRE SOLDER AND STICKS/RODS

Quality No. 1

Available in 10, 12, 14, 16, 18, 20, 22 SWG (Wire Diameter/Thickness)

Made to Order in 24 SWG and 26 SWG

Melting Temp. 190 *C

Usage:

1. Application which do not require product to sustain high temperature.

2. Application which require Best QUALITY shine in Solder joints.

3. High thickness wire can be used as alternative to Solder balls.

4. Shinning better than our Lumax Label Wire Solder.

5. Shrink pack Reels for best appeal and Protection of the product from Oxidation of the surface.

6. Available in Rosin Core and No Clean Core.

7. Available in Different Flux Core Ratios. (2 % to 2.8%)

8. ABOVE QUALITY IS IN HIGH QUALITY ROSIN CORE FLUX.

9. Less Smoke than any other brand.

Specs:

1. High Solder Flow, Non-Corrosive, 

2. Works @ Fast Soldering. Helps to achieve high Efficiency.

3. Less smoke compared to other brands.
4. Activated Wire Solder.

Application:
For Electronic GRADE Application Use Only.

More Details:

Recommended Iron Wattage.

10 Watt for 22 SWG

25 watt for 20 SWG

35 Watt for 18 SWG

65 Watt for 16 SWG

B.I.C pURE 60/40 rATIO STICKS

Details:

1. PURE Oxide-Free Stick/Rod which means min.Dross rod. 

    One cannot ascertain Dross in Stick from outside.Regular Rod contain 30% Dross inside      it.Purchasing Cheap Rod which is not Oxide free means paying for Dross at the price of Solder.

2. Strong joints and sustain high temperature and shocks.

4. Require at least 230*C to melt in Dip Machine
5. Shinning way better than our Lumax Label Sticks
6. Save on your Solder cost by upto 50%. Refer this link Anti-Dross Formulation

Contact us for Purchase.

Also Visit our Premium Solder Wire/Sticks range:

 60/40 No Clean Wire Solder,          63/37 Quality Wire,                      63/37 No Clean Wire.

Best Regards,

B.I.C Solder Team

BAJAJ INSULATION CO. MANUFACTURES SOLDER WIRE, SOLDER STICKS, SOLDER FLUXES, PCB CLEANING SOLVENTS, DIP SOLDERING MACHINES, TIN-COPPER WIRE, TIN-ZINC WIRE AND ALLIED CHEMICALS IN DELHI.

B.I.C LUMAX WIRE SOLDER AND STICKS/RODS

B.I.C lUMAX WIRE SOLDER AND STICKS/RODS

Quality No. 2

Available in 10, 12, 14, 16, 18, 20, 22 SWG (Wire Diameter/Thickness)

Made Order in 24 SWG and 26 SWG

Melting Temp. 220 *C

Usage: 

1. Application which do not require product to sustain high temperature.

2. Application which require Good QUALITY shine in Solder joints.

3. High thickness wire can be used as alternative to Solder balls.

4. Shinning better than our Sharp Label Wire Solder.

5. Shrink pack Reels for best appeal and Protection of the product from Oxidation of the surface..

6. Available in Rosin Core and No Clean Core.

7. Available in Different Flux Core Ratios. (2 % to 2.8%)
8. Tin-Lead Composition customized to give best shine but shine is less than our 60/40 Standard Solder Wire.
9. Economical than our 60/40 Standard Solder Wire Grade. 

Specs:

1. High Solder Flow, Non-Corrosive, 

2. Works @ Fast Soldering. Helps to achieve high Efficiency.

3. Less smoke compared to other brands.
4. High Activated Wire Solder.

Application:
For Electronic Application Use Only.

More Details:

Recommended Iron Wattage.

10 Watt for 22 SWG

25 watt for 20 SWG

35 Watt for 18 SWG

65 Watt for 16 SWG

B.I.C Lumax STICKS

Details:

1. Oxide-Free Stick/Rod which means min.Dross rod. 

    One cannot ascertain Dross in Stick from outside.Regular Rod contain 30% Dross inside      it.Purchasing Cheap Rod which is not Oxide free means paying for Dross at the price of Solder.

2. Strong joints and sustain high temperature and shocks.

4. Require at least 270*C to melt in Dip Machine
5. Shinning better than our Sharp Label Sticks
6. Save on your Solder cost by upto 50%. Refer this link Anti-Dross Formulation

Contact us for Purchase.

Also Visit our Premium Solder Wire/Sticks range:

 60/40 Standard Wire,           60/40 Premium Wire,              60/40 No Clean Wire Solder,      

 63/37 Quality Wire,                                                              63/37 No Clean Wire.

Best Regards,

B.I.C Solder Team

BAJAJ INSULATION CO. MANUFACTURES SOLDER WIRE, SOLDER STICKS, SOLDER FLUXES, PCB CLEANING SOLVENTS, DIP SOLDERING MACHINES, TIN-COPPER WIRE, TIN-ZINC WIRE AND ALLIED CHEMICALS IN DELHI.