Platinum Capillary Tube

Platinum Capillary Tube

Platinum Capillary Tube

Purity: ≥99.95% or ≥99.99%

Outer Diameter: 0.008″ – 0.3″, or customized

  • Custom sizes and standard sizes in stock
  • Quick Lead Time
  • Competitive Price
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Platinum Capillary Tube is a precision-crafted tubing made from high-purity platinum with Pt≥99.95% or Pt≥99.99%. It has excellent corrosion resistance, high-temperature stability, and superior electrical/thermal conductivity, widely used in chemical analysis, medical testing, electronic devices, and high-temperature experiments. As a leading supplier and manufacturer of premium platinum products, Heeger Metal leverages advanced technology to deliver high-quality platinum capillary tubes for various applications.

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Platinum Capillary Tube Data Sheet

Purity:≥99.95% or ≥99.99%
Dimension:Outer diameter: 0.008″ to 0.3″
Wall Thickness: 0.0006″ to 0.02″
Length: up to 40″, or customized
Melting Point:1722℃
Boiling Point:3827℃
Density:21.45 g/cm3
Molecular Weight:195.078 g/mol

Platinum Capillary Tube Description

Platinum Capillary Tube is made from high-purity platinum through rigorous processes, ensuring precise dimensions and flawlessly smooth surfaces. The outer diameter, wall thickness, and length can be customized according to specific requirements. With platinum’s excellent corrosion resistance, high-temperature stability, and good electrical conductivity, platinum capillary tubes offer reliable performance in high-precision experiments. Heeger Metal specializes in manufacturing high-purity platinum products with precision engineering, offering an extensive range of products including platinum tube, platinum marker band, platinum iridium alloy tube, platinum iridium alloy capillary tube, platinum iridium alloy marker band, etc.

  • Platinum Capillary Tube

Platinum Capillary Tube Specifications

Outer diameter range:0.008″ to 0.3″
Typical tolerance of the outer diameter: ±0.008″
Wall thickness range:0.0006″ to 0.02″
Typical tolerance of the wall thickness:±0.0002″
Length:Up to 40″ or custom-made, cutting service provided
Typical tolerance of the length:±0.004″

Platinum Capillary Tube Manufacturing Processes

After high-purity platinum is cold-rolled and pressed into sheets, it undergoes solid solution annealing. The material is then subjected to mechanical drawing, shaping, and polishing to produce platinum capillary tubes. The detailed processes are as follows:

  • Raw Material Purification: High-purity platinum (typically ≥99.95%) is further refined via electrolysis or chemical methods to remove impurities.
  • Melting & Casting: The platinum is melted under high temperature in an inert gas atmosphere and cast into rods or billets.
  • Hot Working (Hot Rolling/Extrusion): The billet is heated to a malleable state and formed into a rough tube shape through rolling or extrusion.
  • Cold Working (Cold Drawing/Rolling): The tube is gradually drawn or rolled at room temperature multiple times, with intermediate annealing to relieve work hardening, achieving precise dimensions.
  • Annealing: Annealing in a controlled atmosphere or vacuum restores ductility and eliminates internal stresses.
  • Precision Finishing & Surface Treatment: Polishing and ultrasonic cleaning are applied to ensure a flawless surface, critical for high-purity applications (e.g., semiconductors or medical devices).
  • Quality Inspection: Spectrometry (composition check), dimensional measurement (micrometer/laser gauging), leak testing, and microstructure analysis (metallography) are conducted to verify compliance.

Platinum Capillary Tube Applications

  • Chemical Analysis: Platinum capillary tubes are widely used in chemical analysis experiments, especially in high-temperature environments, as platinum’s corrosion resistance makes it an ideal choice.
  • Electronics Industry: Platinum capillary tubes are used in manufacturing sensors and other precision instruments, especially in applications requiring high precision and stability.
  • Medical Applications: In medicine, platinum capillary tubes are used to prepare cell analysis devices and medical testing tools, ensuring contamination-free and high-precision processes.
  • High-Temperature Processing: Platinum capillary tubes are resistant to high temperatures, making them widely used in high-temperature chemical reactions and experiments, and able to withstand extreme temperature fluctuations.
  • Spectroscopic Analysis: In the field of spectroscopy, platinum capillary tubes are commonly used in experiments due to their stability and high-temperature resistance, making them suitable for precise spectroscopic analysis.

Platinum Capillary Tube Packaging

Platinum Capillary Tube is carefully placed in wooden cases or cartons with additional soft materials to support and prevent shifting during transportation. This packaging method guarantees the integrity of the products throughout the delivery process.

Metal Packing

Platinum Properties

ElementValue
Atomic number78
Crystal structureFace centred cubic
Electronic structureXe 4f¹⁴ 5d⁹ 6s¹
Valences shown1,2,3,4
Atomic weight( amu )195.08
Thermal neutron absorption cross-section( Barns )9
Photo-electric work function( eV )5.3
Natural isotope distribution( Mass No./% )192/ 0.79
Natural isotope distribution( Mass No./% )196/ 25.30
Natural isotope distribution( Mass No./% )190/ 0.01
Natural isotope distribution( Mass No./% )195/ 33.80
Natural isotope distribution( Mass No./% )198/ 7.20
Natural isotope distribution( Mass No./% )194/ 32.90
Atomic radius – Goldschmidt( nm )0.138
Ionisation potential( No./eV )1/ 9.0
Ionisation potential( No./eV )2/ 18.6
ElementValue
Material conditionHard
Material conditionSoft
Poisson’s ratio0.39
Poisson’s ratio0.39
Bulk modulus( GPa )276
Bulk modulus( GPa )276
Tensile modulus( GPa )170
Tensile modulus( GPa )170
Hardness – Vickers( kgf mm⁻² )40
Hardness – Vickers( kgf mm⁻² )100
Tensile strength( MPa )200-300
Tensile strength( MPa )125-150
Yield strength( MPa )14-35
Yield strength( MPa )185
ElementValue
Electrical resistivity( µOhmcm )10.58@20@20°C
Temperature coefficient( K⁻¹ )0.00392@0-100°C
ElementValue
Boiling point( C )3827
Density( gcm⁻³ )21.45@20°C
ElementValue
Melting point( C )1772
Latent heat of evaporation( J g⁻¹ )2405
Latent heat of fusion( J g⁻¹ )101
Specific heat( J K⁻¹ kg⁻¹ )133@025°C
Thermal conductivity( W m⁻¹ K⁻¹ )71.6@0-100°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ )9@0-100

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To customize your platinum capillary tube, please provide the following details:

  1. Purity (Specify the purity level)
  2. Dimensions (Specify the desired Outer diameter, wall thickness, length, etc.)
  3. Surface Finish (Polished, matte, or customized finish.)
  4. Tolerances (Specify the tolerances you can accept.)
  5. Quantity of the products you need
  6. Alternatively, you can provide a drawing with your specifications.

Once we have these details, we can provide you with a quote within 24 hours.

We carry a wide variety of platinum products in stock, and for these, there is generally no minimum order requirement. However, for custom orders, we typically set a minimum order value of $200. The lead time for stock items is usually 1-2 weeks, while custom orders usually take 3-4 weeks, depending on the specifics of the order.

DFARS (Defense Federal Acquisition Regulation Supplement) compliance is primarily concerned with the sourcing of materials for defense-related applications in the United States. According to DFARS, certain materials used in defense must be sourced from the United States or qualifying countries.

If you have specific platinum materials that are subject to DFARS, please let us know in advance and we will confirm.

At Heeger Metal, we take this responsibility seriously. We adhere to all applicable laws and regulations, including Section 1502 of the Dodd-Frank Act. Our company operates with a strict code of ethics and is committed to only partnering with suppliers who share our dedication to responsible sourcing. We support the initiatives and programs aimed at promoting “conflict-free” supply chains and work diligently to ensure that our products meet these standards.

Used in neural electrodes, stent guidewires, and minimally invasive surgical tools.

Multi-stage diamond die drawing with SEM calibration, plus vacuum annealing for stress relief.

Heeger Metal, established in 2016 in Colorado, USA, is a specialized supplier and manufacturer of platinum products. With extensive expertise in supply and export, we offer competitive pricing and customized solutions tailored to specific requirements, ensuring outstanding quality and customer satisfaction. As a professional provider of refractory metals, specialty alloys, spherical powders, and various advanced materials, we serve the research, development, and large-scale industrial production needs of the scientific and industrial sectors.

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Other Tube/Pipe Products

Heeger Metal provides high-quality custom tube and pipe products in a variety of materials including stainless steel, titanium, nickel alloys, and more. Our precision tubes and pipes are available in various sizes and forms, ideal for applications in industries such as aerospace, automotive, energy, and chemical processing. Whether you require seamless tubes, welded pipes, or custom-cut solutions, we deliver products designed to meet your exact specifications with superior strength, corrosion resistance, and long-lasting performance.

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