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Kester
Kester

Kester 44-9574-0050 Solder Bar, Lead Free, K100LD, 1-2/3 lb, No Halogen, Ultrapure Series

Our Part #488SO521

Condition:New

Mfr Part #44-9574-0050

Kester 44-9574-0050
Kester
Kester

Kester 44-9574-0050 Solder Bar, Lead Free, K100LD, 1-2/3 lb, No Halogen, Ultrapure Series

Our Part #488SO521

Condition:New

Mfr Part #44-9574-0050

WARNING
Has Expiration Date
RoHS
$70.52BAR
Estimated Mfr lead time:20 Days
Qty:Price:Savings
1$70.52
5$68.40Save
10$66.99Save
25$65.58Save
100$65.02Save
Calif. Prop 65
Has Expiration Date
RoHS

Note: Due to a production delay, only cast bar will be available once current stock runs out. The cast bar alternative is CB44-9574-0050

Solder Bar, Lead Free, K100LD, 1-2/3 lb, No Halogen, Ultrapure

Kester's K100LD 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.

For soldering applications which require maximum reliability of solder joints, especially for surface mounted components, only solder of the highest purity is acceptable. Kester does not make any vague claims of outstanding solder purity. Complete analysis of Kester bar and wire solders prove that every batch conforms to the strictest quality control standards in the solder industry.

Ultrapure solder conforms to IPC/J-STD-006C and meets the strictest quality control standards in the industry. When purchased directly or through authorized distributors, purity is certified for each lot.

Storage, Handling and Shelf Life

Store in a dry, non-corrosive environment between 10°C and 40°C (50°F–104°F). Over time, the surface may darken or appear dull, which does not affect performance. Shelf life is two years from the date of manufacture for alloys containing more than 70% lead, and three years for other compositions.

Extruded Bar #

Cast Bar #AlloyLead ContentHalogen Content
44-6337-0050CB44-6337-0050Sn63Pb37LeadedZero
44-9574-0050CB44-9574-0050K100LDLead-FreeZero
44-6337-0030CB44-6337-0030Sn63Pb37LeadedZero
44-7068-0000CB44-7068-0000Sn96.5Ag3Cu.5Lead-FreeZero
44-7050-0000CB44-7050-0000Sn96.3Ag3.7Lead-FreeZero
44-6040-0050CB44-6040-0050Sn60Pb40LeadedZero
44-7080-0000CB44-7080-0000Sn95Sb5Lead-FreeZero
44-7000-0000CB44-7000-0000Sn99Lead-FreeZero
44-0595-0000CB44-0595-0000Sn5Pb95LeadedZero

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


Kester Extrusion Process
Cast Process

BrandKester
Alloy NameK100LD
SeriesUltrapure Series
Melting Point227 C (441 F)°F
Lead FreeYes
Halogen ContentZero Halogen
Alternate Product Number04-9574-0050
Alloy TypeEutectic Alloys
Composition99.3% Tin, 0.7% Copper
Liquidus Point229 C (444 F)
MaterialTin, Copper
Melting Range227-229 C (441-444 F)
Package Quantity1-2/3 lb. Bar
Physical StateBar
Product TypeSolder Bars
Product Weight1-2/3 lb.
Shelf Life3650 days
StandardsDOD STD 2000 1A; IPC/J STD 006
Weight1-2/3 lb.
$70.52BAR
Estimated Mfr lead time:20 Days
Qty:Price:Savings
1$70.52
5$68.40Save
10$66.99Save
25$65.58Save
100$65.02Save

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