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Cast Solder Bar K100LD, Kilo Bar 2.204lb

Hisco #:CB44-9574-0050-32285

MFG #:CB44-9574-0050

Made in the USA
Our Price: $96.76 BARS
Available to Order - 0 on Hand
1000 Arriving From Manufacturer On: 12/12/2025
Manufacturer Estimated Lead Time When Not In Stock19 days
Minimum Order QTY: 12
Item must be ordered in multiples of 12
QuantityPriceSave
1296.76Save

The Kester CB44-9574-0050 is a eutectic Tin/Copper alloy with controlled metallic dopants to control the grain structure within the solder joint, and to minimize the dissolution of copper into the solder pot. K100LD virtually eliminates the occurrence of common defects such as icicling and bridging. The improved grain structure also results in shinier solder joints than traditional lead-free alloy alternatives.

Kester CB44-9574-0050 Features:
  • Low-cost, lead-free alloy.
  • Bright, smooth solder joints with no visible shrinkage effects.
  • Excellent through-hole penetration and topside fillet.
  • Eutectic alloy.
  • Low dissolution of copper from boards and components into the solder pot.
  • Less corrosive to solder pots than SAC305.
  • 20% Lower dross rate than Sn63Pb37 in laboratory tests.

Extruded Bar vs. Cast Bar Process

Wave solder / Selective solder “make up bar” is available in multiple sizes and shapes: Cast, Extruded, Anode, Ingot, etc. Regardless of shape, the purpose of the bar is to replace material in the pot that is removed during the manufacturing process or with the dross. The key is that the bar alloy is always the same no matter the shape of the bar.

With “conventional bar”, the most common shape is either Extruded or Cast. Alpha has historically manufactured Cast Bar. Extruding is a more expensive way to produce bar solder when compared with cast bar.

Is there any difference between Extruded bar vs Cast bar regarding the alloy?

No. Once an alloy is manufactured and ready for forming, the shaping process, whether, extruded or cast, has no impact on the alloy. Extruded and Cast meet the same technical requirements and specifications as they are the exact same alloy and come out of the same master pots.

Is there a difference in the shape between Extruded bar vs Cast bar?

Yes. Specific to the shape and size, there are small differences. Extruded bar has a more consistent size and shape as it is pressed through a die

Extrusion
Cast Process

What is the Cast Bar manufacturing process?

  • First, the solder is made into the desired alloy, (SAC305, Sn63, etc.) in the master pot.

  • Second, as the alloy in the master pot is cleaned of excessive dross and made ready for forming.

  • Third, molten solder is poured directly into a mold or cast and then cooled. The solidified bar is then boxed for shipping.

Differences in using Extruded bar vs Cast bar?
  • Extruded bar is more expensive due to the extra steps required to make the extrusion. Cast bar is formed through a less expensive process.

  • Some equipment has bar solder auto feeders used to top off a wave solder pot which includes a die hole through which bar is fed into the pot. The Extruded Bar, being more consistent in size, may fit better though the die hole of the auto-feeder.

  • When bar solder is hand fed into the pot, cast bar is preferred, as there is no advantage in using the more expensive extruded processed bar.

Product Description

The Kester CB44-9574-0050 is a eutectic Tin/Copper alloy with controlled metallic dopants to control the grain structure within the solder joint, and to minimize the dissolution of copper into the solder pot. K100LD virtually eliminates the occurrence of common defects such as icicling and bridging. The improved grain structure also results in shinier solder joints than traditional lead-free alloy alternatives.

Kester CB44-9574-0050 Features:
  • Low-cost, lead-free alloy.
  • Bright, smooth solder joints with no visible shrinkage effects.
  • Excellent through-hole penetration and topside fillet.
  • Eutectic alloy.
  • Low dissolution of copper from boards and components into the solder pot.
  • Less corrosive to solder pots than SAC305.
  • 20% Lower dross rate than Sn63Pb37 in laboratory tests.

Extruded Bar vs. Cast Bar Process

Wave solder / Selective solder “make up bar” is available in multiple sizes and shapes: Cast, Extruded, Anode, Ingot, etc. Regardless of shape, the purpose of the bar is to replace material in the pot that is removed during the manufacturing process or with the dross. The key is that the bar alloy is always the same no matter the shape of the bar.

With “conventional bar”, the most common shape is either Extruded or Cast. Alpha has historically manufactured Cast Bar. Extruding is a more expensive way to produce bar solder when compared with cast bar.

Is there any difference between Extruded bar vs Cast bar regarding the alloy?

No. Once an alloy is manufactured and ready for forming, the shaping process, whether, extruded or cast, has no impact on the alloy. Extruded and Cast meet the same technical requirements and specifications as they are the exact same alloy and come out of the same master pots.

Is there a difference in the shape between Extruded bar vs Cast bar?

Yes. Specific to the shape and size, there are small differences. Extruded bar has a more consistent size and shape as it is pressed through a die

Extrusion
Cast Process

What is the Cast Bar manufacturing process?

  • First, the solder is made into the desired alloy, (SAC305, Sn63, etc.) in the master pot.

  • Second, as the alloy in the master pot is cleaned of excessive dross and made ready for forming.

  • Third, molten solder is poured directly into a mold or cast and then cooled. The solidified bar is then boxed for shipping.

Differences in using Extruded bar vs Cast bar?
  • Extruded bar is more expensive due to the extra steps required to make the extrusion. Cast bar is formed through a less expensive process.

  • Some equipment has bar solder auto feeders used to top off a wave solder pot which includes a die hole through which bar is fed into the pot. The Extruded Bar, being more consistent in size, may fit better though the die hole of the auto-feeder.

  • When bar solder is hand fed into the pot, cast bar is preferred, as there is no advantage in using the more expensive extruded processed bar.

Technical Information

BrandKester
Weight: 2.20462
Country Of Origin: US
Harmonized Code: 8311.90.0000
Our Price: $96.76 BARS
Available to Order - 0 on Hand
 
Minimum Order QTY: 12
Item must be ordered in multiples of 12
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