Fusible Archives - DKL Metals Ltd https://dklmetals.co.uk/product-tag/fusible/ UK's Foremost Lead-Free Solder Producer Tue, 05 May 2026 13:45:35 +0000 en-GB hourly 1 https://wordpress.org/?v=6.9.4 https://dklmetals.co.uk/wp-content/uploads/2023/09/cropped-fi-32x32.jpg Fusible Archives - DKL Metals Ltd https://dklmetals.co.uk/product-tag/fusible/ 32 32 Bi58 Sn42 Low-Melt Solder Alloy https://dklmetals.co.uk/product/bi58-sn42-low-melt-solder-alloy/ Mon, 24 Nov 2025 16:11:36 +0000 https://dklmetals.co.uk/?post_type=product&p=2093 High-Quality Lead-Free Solder Bi58 Sn42 is a low-melt, lead-free solder alloy combining 58% bismuth and 42% tin. It melts at a low temperature of 138°C, making it perfect for heat-sensitive soldering and specialised industrial applications. Electronic Uses of Bi58Sn42 Alloy This alloy excels in electronics assembly, especially for sensitive components prone to heat damage. Its ... Bi58 Sn42 Low-Melt Solder Alloy

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]]> High-Quality Lead-Free Solder

Bi58 Sn42 is a low-melt, lead-free solder alloy combining 58% bismuth and 42% tin. It melts at a low temperature of 138°C, making it perfect for heat-sensitive soldering and specialised industrial applications.

Electronic Uses of Bi58Sn42 Alloy

This alloy excels in electronics assembly, especially for sensitive components prone to heat damage. Its low melting point prevents thermal stress during soldering of printed circuit boards (PCBs) and semiconductor packages. Bi58Sn42 offers excellent wetting and creates strong, reliable joints for electronic devices, including calculators and power semiconductors. It is commonly used in reflow soldering and hand soldering tasks requiring careful temperature control.

Industrial Uses: Vacuum Seals

In industry, Bi58Sn42 serves as a reliable material for vacuum sealing processes. Its eutectic melting point allows precise sealing without excessive heat exposure, which is critical for maintaining vacuum integrity in sensitive equipment. The alloy’s thermal stability and strong mechanical bonding ensure long-lasting, airtight seals essential in manufacturing and scientific instrumentation.

Oil and Gas Industry Applications

Bi58Sn42 is used in the oil and gas sector for plugging and sealing applications where temperature-sensitive materials need protection. Its low melting point enables secure seals in pipelines and equipment without damaging surrounding components. This alloy supports safety and durability requirements critical for harsh operating environments.

Use in Safety Devices

The alloy plays a vital role in safety devices such as thermal fuses and heat-activated switches. Bi58Sn42’s predictable melting point triggers device activation reliably at specified temperatures, protecting electronics and industrial equipment from overheating and fire hazards. Its lead-free composition also aligns with environmental and regulatory standards.

Why Choose Bi58Sn42 Low-Melt Solder Alloy?

Bi58 Sn42 Low-Melt Solder offers superior performance in low-temperature soldering with excellent flow, wetting, and mechanical strength. Its lead-free nature ensures compliance with RoHS and environmental guidelines. This alloy prevents thermal damage during assembly and repair, making it the top choice for sensitive and critical applications across electronics, industry, oil and gas, and safety systems.

Contact our expert team to find out more about Bi58Sn42 Low-Melt Solder Alloy and how it can meet your specific manufacturing and repair needs.

Learn More!

DKL Metals – High and Low Melting Point Solder
Wikipedia – Fusible Alloys

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]]> Low Melt Fusible Alloy 70 https://dklmetals.co.uk/product/low-melt-fusible-alloy-70/ Fri, 31 Oct 2025 11:09:21 +0000 https://dklmetals.co.uk/?post_type=product&p=1703 The Industry Standard for Precision Tube Bending DKL Low Melt 70 (commonly known as Wood’s Metal) is a high-purity, Bismuth-based fusible alloy engineered for delicate industrial processes. While versatile, it is primarily specified as a premium tube bending alloy. Its unique physical property of expanding slightly upon solidification provides essential internal support for thin-walled tubes, ... Low Melt Fusible Alloy 70

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The Industry Standard for Precision Tube Bending

DKL Low Melt 70 (commonly known as Wood’s Metal) is a high-purity, Bismuth-based fusible alloy engineered for delicate industrial processes. While versatile, it is primarily specified as a premium tube bending alloy. Its unique physical property of expanding slightly upon solidification provides essential internal support for thin-walled tubes, preventing kinking, wrinkling, or collapsing during complex manipulation.

Primary Use

Tube Bending

Provides rigid internal support for bending thin-walled sections. Easily removed by immersion in hot water.

Thermal Link

Safety Systems

A sharp 70°C melting point makes it ideal for fire sprinkler heads and heat-activated safety valves.

Engineering

Work Holding

The alloy’s expansion ensures a secure “lock” for holding irregular parts during precision machining.

Technical Specifications

Physical Property Value
Melting Point (Eutectic) 70°C (158°F)
Density 9.4 g/cm³
Tensile Strength 24.7 MPa
Hardness (Brinell) 7.2
Thermal Conductivity 0.188 j/cm sec °C
Recommended Pour 75°C – 85°C

Need to convert Celsius to Fahrenheit for your process?

Use our Temperature Converter

Technical Data & Composition

Chemical Composition (Nominal) +
  • Bismuth (Bi): 50%
  • Lead (Pb): 27%
  • Tin (Sn): 13%
  • Cadmium (Cd): 10%
Dimensional Stability & Growth +

Unlike standard solders that shrink, Low Melt 70 expands after casting. This is critical for tooling and pipe-bending accuracy:

  • Growth after 5 Mins: +0.27%
  • Growth after 30 Mins: +0.45%
  • Growth after 1 Hour: +0.51%
Availability & Formats +

DKL Metals manufactures this alloy in the UK to ISO 9001:2015 standards. It is available in:

  • Blowpipe Strips: Approx 85g
  • Tinmans Sticks: Approx 250g
  • Large Bars: 1kg weight
Batch Consistency+

Our in-house Spectro-Analysis ensures consistency for safety-critical thermal links.

Note: These alloys contain Lead and Cadmium. They are intended for RoHS-exempt industrial applications, such as tube bending, safety thermal links, and specialised tooling.

Frequently Asked Questions

What are the alternative names for Wood’s Metal? +

Low Melt 70 is known globally by several industry trade names. Depending on your region or legacy technical specifications, it may be referred to as:

  • Cerrobend
  • WR Bendalloy
  • Ostalloy 158
  • Fry’s Fusible No 2

DKL Metals manufactures this alloy to meet the eutectic 70°C specification required for these trade names.

How do you use a low melting point alloy for tube bending? +

To prevent kinking, the low melting point alloy for tube bending is melted and poured into the tube. Because it expands upon cooling, it provides internal support. Once the bend is complete, the assembly is placed in hot water to safely melt and remove the alloy for reuse.

Is this the correct fusible alloy for fire sprinkler systems? +

Yes. Low Melt 70 is a primary fusible alloy for fire sprinkler systems and safety thermal links. Its eutectic nature ensures it remains completely solid until it reaches 70°C, providing a reliable and rapid release mechanism.

What is the Bismuth-based alloy dimensional stability after casting? +

A key feature of Bismuth-based alloy dimensional stability is its unique growth property. Unlike most metals, this alloy expands by approximately 0.51% within one hour of casting, ensuring a tight mechanical grip for machining fixtures and tooling.

Where to buy Wood’s Metal in the UK for industrial use? +

If you are looking for where to buy Wood’s Metal in the UK, DKL Metals manufactures high-purity fusible alloys at our Grangemouth facility, supplying formats from 85g blowpipe strips to 1kg bars.

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]]> Low Melt Fusible Alloy 60 https://dklmetals.co.uk/product/low-melt-fusible-alloy-60/ Fri, 31 Oct 2025 10:19:21 +0000 https://dklmetals.co.uk/?post_type=product&p=1702 Precision Low-Temperature Alloy Fusible Low Melt Alloy 60 is a carefully engineered low melting point alloy designed for applications that require precise temperature control and excellent casting behaviour. Also commonly known as “Fields Metal” after Simon Quellen Field, this alloy offers smooth melting and solidification characteristics, making it highly suitable for intricate moulds, tooling applications, ... Low Melt Fusible Alloy 60

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]]> Precision Low-Temperature Alloy

Fusible Low Melt Alloy 60 is a carefully engineered low melting point alloy designed for applications that require precise temperature control and excellent casting behaviour. Also commonly known as “Fields Metal” after Simon Quellen Field, this alloy offers smooth melting and solidification characteristics, making it highly suitable for intricate moulds, tooling applications, and detailed prototype work.

Technical Data & Properties

Property Value
Solidus 60°C (approx.)
Liquidus 62°C (approx.)
Density 8.3 g/cc (approx.)
Recommended Pouring Temperature 65 – 75°C
Alloy Type Low melting fusible alloy
Main Application Tooling, model making, thermal protection, casting and moulding

Click Link Below for temperature conversion

Temperature Conversion Calculator | Basic Calculator

Key Benefits

  • Extremely low melting point (around 60°C) enables use with heat-sensitive materials
  • Excellent fluidity and fine detail reproduction in complex moulds
  • Rapid setting time for efficient production cycles
  • Safe handling temperature for improved operator control
  • Reusable alloy with consistent melting performance

Typical Applications

  • Precision casting and prototype model fabrication
  • Thermal fuse elements and temperature control devices
  • Holding, anchoring, or embedding delicate components
  • Temporary fixturing or moulding applications

Why Choose DKL Metals’ Fusible Low Melt 60?

DKL Metals supplies Fusible Low Melt Alloy 60 (Fields Metal) with tightly controlled composition and reproducible melting behaviour. Our UK-based manufacturing and technical support ensure reliable supply and consistent quality for all your low-temperature alloy requirements.

Learn More!

DKL Metals – Understanding High and Low Melting Point Alloys

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]]> Low Melt Fusible Alloy 47 https://dklmetals.co.uk/product/low-melt-fusible-alloy-47/ Mon, 27 Oct 2025 11:17:54 +0000 https://dklmetals.co.uk/?post_type=product&p=1631 Precision Low-Temperature Alloy Low melt Fusible Alloy 47 is a specially formulated low melting point alloy designed for precision casting and specialised applications requiring controlled melting temperatures. This fusible alloy offers superior flow characteristics and excellent cast detail at low pouring temperatures, making it ideal for use in investment casting, prototype models, and delicate moulding ... Low Melt Fusible Alloy 47

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]]> Precision Low-Temperature Alloy

Low melt Fusible Alloy 47 is a specially formulated low melting point alloy designed for precision casting and specialised applications requiring controlled melting temperatures. This fusible alloy offers superior flow characteristics and excellent cast detail at low pouring temperatures, making it ideal for use in investment casting, prototype models, and delicate moulding processes.  This alloy sometimes is also known by the name Cerrolow 117.

Technical Data & Properties

Property Value
Solidus 47°C (approx.)
Liquidus 60°C (approx.)
Density 8.4 g/cc (approx.)
Recommended Pouring Temperature 50 – 70°C
Alloy Type Low melting fusible alloy
Main Application Investment casting, model making, precision low-temp applications

Click Link Below for temperature conversion

Temperature Conversion Calculator | Basic Calculator

Key Benefits

  • Very low melting temperature allows delicate moulds and materials
  • Excellent fluidity ensures detailed mould filling
  • Rapid solidification reduces cycle times
  • Suitable for investment casting and prototype manufacturing
  • Safe handling temperature enhances operator safety

Typical Applications

  • Investment casting of small, intricate parts
  • Model making and prototype development
  • Specialist electrical and thermal applications
  • Lost wax and precision moulding processes

Why Choose DKL Metals’ Low Melt Fusible Alloy 47?

DKL Metals provides Low melt Fusible Alloy 47 with precise composition control and consistent melting characteristics. Our UK-based supply ensures responsive delivery and expert technical support to help you achieve reliable casting quality and process efficiency for your specialist low-temperature applications.

Learn More!

DKL Metals – Understanding High and Low Melting Point Alloys

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]]> Tailored / Custom Fusible Alloys https://dklmetals.co.uk/product/custom-fusible-alloy/ Fri, 15 Sep 2023 11:08:54 +0000 https://development.dklmetals.co.uk/?post_type=product&p=60 Custom Fusible Alloy Solutions DKL Metals offers custom fusible alloy tailored to meet your precise manufacturing and application needs. We work closely with you to adjust compositions and create specialised alloys. Wide Range of Melting Points Our current range of fusible alloys cover low melting points—from approximately 47°C to 183°C—matching your specific process requirements beyond ... Tailored / Custom Fusible Alloys

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]]> Custom Fusible Alloy Solutions

DKL Metals offers custom fusible alloy tailored to meet your precise manufacturing and application needs. We work closely with you to adjust compositions and create specialised alloys.

Wide Range of Melting Points

Our current range of fusible alloys cover low melting points—from approximately 47°C to 183°C—matching your specific process requirements beyond standard offerings.

Click Link Below for temperature conversion

Temperature Conversion Calculator | Basic Calculator

Collaborative Expertise

We collaborate with you to develop alloys for applications including optical lens grinding, safety devices, tube bending, foundry patterns, press tools, and radiotherapy shielding.

Quality and Compliance

Each tailored fusible alloy is produced under strict quality control standards to ensure consistent performance, compliance, and reliability.  Our in-house laboratory rigorously tests the composition of every alloy, ensuring that specifications remain at their optimal levels for your specific requirements.

Get In Touch for Any Custom Fusible Alloy

Contact a knowledgeable DKL Metals expert to discuss your tailored fusible alloy needs. We welcome the chance to create alloys that improve your process and product quality.  Start the conversation today and benefit from our collaborative approach.

Learn More!

DKL Metals – Understanding High and Low Melting Point Alloys
Wikipedia – Fusible Alloys

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