We have compiled a list of manufacturers, distributors, product information, reference prices, and rankings for Expansion material.
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Expansion material Product List and Ranking from 8 Manufacturers, Suppliers and Companies

Last Updated： Aggregation Period:Oct 08, 2025～Nov 04, 2025
This ranking is based on the number of page views on our site.

Expansion material Manufacturer, Suppliers and Company Rankings

Last Updated： Aggregation Period:Oct 08, 2025～Nov 04, 2025
This ranking is based on the number of page views on our site.

  1. 日本製鋼所M&E 営業本部 Tokyo//Machine elements and parts
  2. null/null
  3. 日本化学工業 Tokyo//Other manufacturing
  4. 4 アスクテクニカ Yamanashi//Building materials, supplies and fixtures
  5. 5 日之出水道機器 産業機械マーケティング Fukuoka//Machine elements and parts
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Expansion material Product ranking

Last Updated： Aggregation Period:Oct 08, 2025～Nov 04, 2025
This ranking is based on the number of page views on our site.

  1. Low thermal expansion material (Invar): A material that exhibits minimal dimensional changes near room temperature. 日本製鋼所M&E 営業本部
  2. Negative thermal expansion material "Serafit" 日本化学工業
  3. Low thermal expansion material "Hino GD Invar" with excellent casting defect suppression and machinability. 日之出水道機器 産業機械マーケティング
  4. 4 Fire prevention and smoke prevention during a fire: Graphite-based thermal expansion material 'Promaseal LFC'
  5. 4 Fire prevention and smoke prevention during a fire: Graphite-based thermal expansion material 'Promaseal PL'

Expansion material Product List

1～11 item / All 11 items

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Ultra-low thermal expansion material "Processing of NOBINITE"

Ultra-low thermal expansion material "Processing of NOBINITE"

Compared to other materials, it has an extremely low coefficient of thermal expansion.

Nobinight is one of the ultra-low thermal expansion materials and is widely used in semiconductor manufacturing equipment, optical devices, ultra-precision machining machines, and high-precision antennas for satellites. Additionally, one of its major features is that it can be obtained at a lower cost compared to other low-expansion thermal materials such as Invar and Super Invar. At TKY Products Co., Ltd., we are committed to meeting our customers' needs through micron-level precision machining. 【Specifications】 ○ Material: Aluminum Stainless Steel Copper ○ Lot: 1 to 100 pieces ○ Precision: 1/100 to 1/1000 mm For more details, please contact us.

  • Processing Contract
  • Other metal materials

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[Technical Introduction] Thermal Expansion Materials

[Technical Introduction] Thermal Expansion Materials

Compatible with various rubber and resin materials! It can prevent the inflow of smoke and gas during a fire!

We would like to introduce "thermal expansion materials" that can be provided in various shapes and manufacturing methods. By blending a thermal expansion agent with rubber or resin, an insulating layer is formed that expands at high temperatures, demonstrating fire resistance and heat resistance. The thermal expansion material blocks the piping, cutting off the path of flames and smoke. 【Features】 - By blending a thermal expansion agent with rubber or resin, an insulating layer is formed that expands at high temperatures, demonstrating fire resistance and heat resistance. - The thermal expansion material blocks the piping, cutting off the path of flames and smoke. - By using it as a sealing material or gasket for gaps in buildings and piping, it effectively contributes to fire prevention and the prevention of fire spread. - Available in various shapes and manufacturing methods. - Compatible with various rubber and resin materials. *For more details, please refer to the PDF document or feel free to contact us.

  • Rubber
  • Other polymer materials

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Thermal expansion material (EXP sheet)

Thermal expansion material (EXP sheet)

Products that safely control heat.

Structure It is a flexible material formed into sheet form by an extruder, consisting of a mixture of special heat-resistant fibers, heat-resistant binders, special graphite, and fillers. [Features] EXP sheet is an expandable filler developed to ensure higher safety in buildings. It begins to expand when heated to over 170°C, filling the gaps in joints and preventing the passage of fire and smoke. Additionally, after expansion, it forms an insulation layer that prevents the spread of fire. It is easy to install and a highly convenient product. It is an environmentally friendly product that complies with the "VOC emission rate standards from building materials." Furthermore, EXP2000 does not contain halogens.

  • others
  • Composite Materials
  • Piping Materials

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Thermal expansion material (MXP sheet)

Thermal expansion material (MXP sheet)

Products for safely controlling heat.

Structure This is a thermal expansion millboard made by adding a small amount of organic binder to special heat-resistant fibers, special graphite, and heat-resistant fillers, and then forming it using a wet machine (papermaking machine). 【Features】 When heated above 180°C, expansion begins in the thickness direction, and the volume expands to about 10 times. The millboard has thermal insulation and sound absorption properties even before expansion, but its performance improves further after expansion.

  • others
  • Rubber
  • Heating device

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Low thermal expansion material "Hino GD Invar" with excellent casting defect suppression and machinability.

Low thermal expansion material "Hino GD Invar" with excellent casting defect suppression and machinability.

Stable supply available from one unit to large lots! We have a track record of delivery in various industrial machines such as semiconductor manufacturing equipment, machine tools, precision measuring instruments, and vacuum pumps.

The "Hino GD Invar" is a low thermal expansion material that achieves unprecedented stability in low thermal expansion, castability, and machinability through the optimization of alloy components and heat treatment. It has a proven track record in various industrial machinery, including semiconductor manufacturing equipment, machine tools, precision measuring instruments, and vacuum pumps. 【Features】 ■ It has a low thermal expansion coefficient α = 1.0 to 3.5 ppm/K (average 20 to 50°C). ■ Castability/Machinability: By optimizing the alloy structure, it suppresses casting defects and excels in machinability compared to nickel-based materials. ⇒ It is ideal for parts with complex shapes or those prone to casting defects, as well as for parts that require machining. ■ The automatic molding line for sand molds enables the production of a wide variety of small quantities and stable supply. ⇒ With an automatic pattern change system, we have an automated and efficient sand mold automatic molding line, allowing us to flexibly respond to changes in production volume from a minimum of one piece to large lots. * We can develop new materials and customize materials according to customer requests! Please feel free to contact us.

  • Steel
  • Other metal materials

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The increasing diversity of LEX is accelerating.

The increasing diversity of LEX is accelerating.

We will introduce the variations and achievements of rolled products and 3D printed items!

We have successfully developed a low thermal expansion material, 'LEX', through hot rolling into a product. With an increase in shape variations, we can offer more flexible solutions. We anticipate demand for applications such as semiconductor photomask manufacturing (inspection) equipment and heat sinks. We encourage you to consider "LEX-3D printed products" at this opportunity. 【Features of 3D printed products】 ■ Proven track record in actual machine repeat parts ■ Achieves three effects: - Cost reduction - Good quality - Shortened delivery times *For more details, please refer to the PDF document or feel free to contact us.

  • alloy
  • Other polymer materials

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Low thermal expansion material "LEX-STAR"

Low thermal expansion material "LEX-STAR"

Space-compatible! High-performance materials that maintain a low thermal expansion coefficient across a wide temperature range.

"LEX-STAR" is a low thermal expansion material suitable for use in outer space. It maintains a thermal expansion coefficient of 1 (ppm/K) or less from +80°C to -80°C, and a thermal expansion coefficient of 2 (ppm/K) or less from +150°C to -200°C. It contains less than 1% cobalt (Co) and complies with the Specific Chemical Substances Hazard Prevention Regulations. The LEX series offers a diverse lineup of materials to meet varied precision requirements, covering a wide range of thermal expansion characteristics. It is highly regarded not only in the field of ultra-precision instruments but also in areas such as CFRP (carbon fiber reinforced plastic) molds primarily for aircraft, vacuum pump components, laser equipment parts, and more. *For more details, please refer to the catalog or feel free to contact us.

  • alloy
  • others

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Negative thermal expansion material "Serafit"

Negative thermal expansion material "Serafit"

A negative thermal expansion material that suppresses thermal expansion by being blended with various materials to create composites!

"Serafit" is a negative thermal expansion material synthesized from zirconium tungsten phosphate [Zr2WO4(PO4)2] powder using a complex oxide synthesis technology. It exhibits a thermal expansion coefficient of "-3ppm/℃," indicating a negative slope. In device materials where high precision is required, incorporating negative thermal expansion materials into various substrates such as resins and ceramics to create composites can suppress thermal expansion and reduce dimensional changes in materials due to temperature. 【Features】 ■ Can be blended with various substrates, including resins and glass ■ Confirmed thermal expansion suppression effects based on blending amounts ■ Depending on the type of substrate, thermal expansion suppression effects exceeding the rule of mixtures can be expected *For more details, please refer to the PDF document or feel free to contact us.

  • Composite Materials

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Low thermal expansion material (Invar): A material that exhibits minimal dimensional changes near room temperature.

Low thermal expansion material (Invar): A material that exhibits minimal dimensional changes near room temperature.

We offer a catalog featuring examples of manufacturing achievements and material properties! We utilize our unique technology to accommodate a wide range, even for large sizes that are difficult to manufacture.

Low thermal expansion materials (Invar) are characterized by their small thermal expansion coefficient near room temperature. Our company has a substantial track record of supplying various materials, including the representative iron-36% nickel alloy, as well as mask materials that require high cleanliness, and components for precision instruments. [Features] - A large number of delivery records not only for Invar alloys but also for Super Invar, 42 Alloy, Kovar, and others. - Utilizing unique technology, we provide reliable materials for large products that are difficult to manufacture by other companies, as well as medium and small-sized products. - Detailed technical support from our research team, as well as prototype development and material development, are also available. *For more details, please refer to the PDF document or feel free to contact us.

  • inver_material1.jpg
  • alloy

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