PEEK Capillary
Tubing in PEEK for general lab use. PEEK is a inert fluoropolymer, with a high chemical compatibility and a working temperature range of -50°C up to +250°C. This PEEK capillary tubing can be used in a microfluidic system for demanding applications with high pressure or agressive fluids, but also as a fluidic resistance.
PEEK and its modified composite materials show excellent performance under high temperature and high humidity conditions. PEEK have excellent chemical corrosion resistance, self-lubricating, and wear-resistant properties, so it has become the most ideal material to replace copper alloys and ordinary rubber. Compared with them, PEEK has longer service life which can reduce equipment operating costs, improve equipment operating reliability.
PEEK's performance can remain stable in the temperature range from -196°C to 260°C. Under extreme working conditions, it can withstand 300"C for a short time. The performance of PEEK is still reliable even in high temperatures of several kilometers underground work environment.
Compared with other plastics, PEEK is resistant to compression, impact and also have good fatigue resistance. PEEK is durable in mechanical equipment and wear-resistant environments.
PEEK sealing solutions can improve the part service life. Some domestic chemical companies use the PEEK5600FE20 polytetrafluoroethylene modified material designed by JUNHUA PEEK to replace the original material, the service life of the wear parts can even be extended by 1.3-3 times.
PEEK is chemically inert, and has no reaction to most acids, oils, greases and all other organic and inorganic solvents or enzymes, and can still maintain good strength and dimensional stability.
PEEK has low friction coefficient, low running resistance, can be used without oil in some working conditions. The equipment is cleaner, thus improving process reliability, improving energy efficiency and saving costs.
Injection molds can be used for rapid injection molding of large quantities of complex special-shaped parts, and the cost is low compared to machining.
| Item | Standard | Data | Units |
| Color | - | Natural | |
| Density | ISO 1138 | 1.3±0.01 | g/cm3 |
| Water Absorption (25℃.24Hrs) | ISO 62 | 0.05 % | |
| Melting temperature | ISO 11357 | 343 | ℃ |
| Distortion Temperature | ISO 75-1/-2 | 163 | ℃ |
| Continuous service Temperature | UL 74685 | 260 | ℃ |
| Thermal expansion coefficient | ASTM D696 | 4.7*10-6 | /K |
| Tensile Strength (23℃) | ISO 527 | 100 | MPa |
| Tensile modulus (23℃) | ISO 527 | 3.8 | GPa |
| Tensile Elongation (23℃) | ISO 527 | 27 % | |
| Bending Strength (23℃) | ISO 178 | 163 | MPa |
| Bending Modulus (23℃) | ISO 178 | 3.5 | GPa |
| Impact Strength(23℃) | ISO 604 | 123 | MPa |
| Lzod Impact Strength (No notched) | ISO 180/U | No Break | kJ/m2 |
| Poisson Ratio | ISO 527-2 | 0.4 | |
| Rockwell Hardness | GB3398.2 | 118 | |
| Flammability | UL 94 (1.5 mm) | V-0 | |
| Dielectric strength | IEC 60243-1 | 18 | KV/mm |
| Dielectric constant | IEC 60250 | 3.2 | |
| Thermal Conductivity | ISO 22007 | 0.28 | W/(m·K) |
| Surface Resistance | IEC 90093 | 1015 | Ω |
| Item | Standard | Data | Units |
| Color | - | Black | |
| Density | ISO 1138 | 1.4±0.03 | g/cm3 |
| Water Absorption (25℃.24Hrs) | ISO 62 | 0.05 % | |
| Melting temperature | ISO 11357 | 343 | ℃ |
| Distortion Temperature | ISO 75-1/-2 | 315 | ℃ |
| Continuous service Temperature | UL 74685 | 260 | ℃ |
| Thermal expansion coefficient | ASTM D696 | 1.5*10-6 | /K |
| Tensile Strength (23℃) | ISO 527 | 125 | MPa |
| Tensile modulus (23℃) | ISO 527 | 9.3 | GPa |
| Tensile Elongation (23℃) | ISO 527 | 2.5 % | |
| Bending Strength (23℃) | ISO 178 | 271 | MPa |
| Bending Modulus (23℃) | ISO 178 | 9.1 | GPa |
| Impact Strength(23℃) | ISO 604 | 196 | MPa |
| Lzod Impact Strength (No notched) | ISO 180/U | 38 | kJ/m2 |
| Poisson Ratio | ISO 527-2 | 0.35 | |
| Rockwell Hardness | GB3398.2 | 123 | |
| Flammability | UL 94 (1.5 mm) | V-0 | |
| Dielectric strength | IEC 60243-1 | - | KV/mm |
| Dielectric constant | IEC 60250 | - | |
| Thermal Conductivity | ISO 22007 | 0.95 | W/(m·K) |
| Surface Resistance | IEC 90093 | 105 | Ω |
| Item | Standard | Data | Units |
| Color | - | Natural | |
| Density | ISO 1138 | 1.5±0.01 | g/cm3 |
| Water Absorption (25℃.24Hrs) | ISO 62 | 0.05 % | |
| Melting temperature | ISO 11357 | 343 | ℃ |
| Distortion Temperature | ISO 75-1/-2 | 315 | ℃ |
| Continuous service Temperature | UL 74685 | 260 | ℃ |
| Thermal expansion coefficient | ASTM D696 | 2.2*10-6 | /K |
| Tensile Strength (23℃) | ISO 527 | 110 | MPa |
| Tensile modulus (23℃) | ISO 527 | 7.9 | GPa |
| Tensile Elongation (23℃) | ISO 527 | 3.5 % | |
| Bending Strength (23℃) | ISO 178 | 214 | MPa |
| Bending Modulus (23℃) | ISO 178 | 7.5 | GPa |
| Impact Strength(23℃) | ISO 604 | 142 | MPa |
| Lzod Impact Strength (No notched) | ISO 180/U | 41 | kJ/m2 |
| Poisson Ratio | ISO 527-2 | 0.35 | |
| Rockwell Hardness | GB3398.2 | 122 | |
| Flammability | UL 94 (1.5 mm) | V-0 | |
| Dielectric strength | IEC 60243-1 | 17 | KV/mm |
| Dielectric constant | IEC 60250 | 3.4 | |
| Thermal Conductivity | ISO 22007 | 0.31 | W/(m·K) |
| Surface Resistance | IEC 90093 | 1015 | Ω |
| Item | Standard | Data | Units |
| Color | - | Black | |
| Density | ISO1138 | 1.44±0.05 | g/cm3 |
| WaterAbsorption(25℃.24Hrs) | ISO62 | 0.05% | |
| Meltingtemperature | ISO11357 | 343 | ℃ |
| DistortionTemperature | ISO75-1/-2 | 315 | ℃ |
| ContinuousserviceTemperature | UL74685 | 260 | ℃ |
| Thermalexpansioncoefficient | ASTMD696 | 2.4*10-6 | /K |
| TensileStrength(23℃) | ISO527 | 70 | MPa |
| Tensilemodulus(23℃) | ISO527 | 4.0 | GPa |
| TensileElongation(23℃) | ISO527 | 2.5% | |
| BendingStrength(23℃) | ISO178 | 100 | MPa |
| BendingModulus(23℃) | ISO178 | 4.0 | GPa |
| ImpactStrength(23℃) | ISO604 | 135 | MPa |
| LzodImpactStrength(Nonotched) | ISO180/U | 26 | |
| PoissonRatio | ISO527-2 | 0.35 | |
| RockwellHardness | GB3398.2 | 120 | |
| Flammability | UL94(1.5mm) | V-0 | |
| Dielectricstrength | IEC60243-1 | - | KV/mm |
| Dielectricconstant | IEC60250 | - | |
| ThermalConductivity | ISO22007 | 0.86 | W/(m·K) |
| SurfaceResistance | IEC90093 | 105 | Ω |
Medical-Grade PEEK Capillary
Our high pressure tubing includes bioinert PEEK, formally known as poly ether ether ketone.
PEEK is a high-performance engineered polymer with mechanical and chemical resistance
properties that absorb high temperatures, making it highly resistant to thermal degradation.
PEEK tubing has one of the highest strength-to-weight ratios of any thermoplastic and the
strength required to withstand continuous use at HPLC pressure. Its distinct materials make
it inert to most solvents and give it a smooth internal surface that improves the resolution
of sample bands.
With its introduction into the marketplace, PEEK materials have become a popular replacement
for stainless steel tubing for fluidic needs.
PEEK acts as an excellent alternative for stainless steel tubing in high pressure applications and analytical systems. Its mechanical properties allow it to be used in many situations where stainless steel would become too reactive. Unlike stainless steel, PEEK tubing is flexible and can be easily cut into preferred lengths with a razor blade. PEEKs internal surface is much smoother than that of metal tubing, thereby reducing the risk of dilution and remixing of samples.
PEEK Advantages
PEEK Tubing Size
| OD(mm) | ID(mm) |
| 0.5 | 0.3、0.4 |
| 0.6 | 0.3、0.4、0.5 |
| 0.7 | 0.3、0.4、0.5、0.6 |
| 0.8 | 0.3、0.4、0.5、0.6、0.7 |
| 0.9 | 0.3、0.4、0.5、0.6、0.7、0.8 |
| 1.0 | 0.3、0.4、0.5、0.6、0.7、0.8、0.9 |
| 1.1 | 0.3、0.4、0.5、0.6、0.7、0.8、0.9、1.0 |
| 1.2 | 0.3、0.4、0.5、0.6、0.7、0.8、0.9、1.0、1.1 |
| 1.3 | 0.3、0.4、0.5、0.6、0.7、0.8、0.9、1.0、1.1、1.2 |
| 1.4 | 0.3、0.4、0.5、0.6、0.7、0.8、0.9、1.0、1.1、1.2、1.3 |
| 1.5 | 0.3、0.4、0.5、0.6、0.7、0.8、0.9、1.0、1.1、1.2、1.3、1.4 |
| 1.6 | 0.3、0.4、0.5、0.6、0.7、0.8、0.9、1.0、1.1、1.2、1.3、1.4、1.5 |
| 1.7 | 0.3、0.4、0.5、0.6、0.7、0.8、0.9、1.0、1.1、1.2、1.3、1.4、1.5、1.6 |
| 1.8 | 0.3、0.4、0.5、0.6、0.7、0.8、0.9、1.0、1.1、1.2、1.3、1.4、1.5、1.6、1.7 |
| 1.9 | 0.3、0.4、0.5、0.6、0.7、0.8、0.9、1.0、1.1、1.2、1.3、1.4、1.5、1.6、1.7、1.8 |
| 2.0 | 0.3、0.4、0.5、0.6、0.7、0.8、0.9、1.0、1.1、1.2、1.3、1.4、1.5、1.6、1.7、1.8、1.9 |
| 2.1 | 0.3、0.4、0.5、0.6、0.7、0.8、0.9、1.0、1.1、1.2、1.3、1.4、1.5、1.6、1.7、1.8、1.9、2.0 |
| 2.2 | 0.3、0.4、0.5、0.6、0.7、0.8、0.9、1.0、1.1、1.2、1.3、1.4、1.5、1.6、1.7、1.8、1.9、2.0、2.1 |
| 2.3 | 0.3、0.4、0.5、0.6、0.7、0.8、0.9、1.0、1.1、1.2、1.3、1.4、1.5、1.6、1.7、1.8、1.9、2.0、2.1、2.2 |
| 2.4 | 0.3、0.4、0.5、0.6、0.7、0.8、0.9、1.0、1.1、1.2、1.3、1.4、1.5、1.6、1.7、1.8、1.9、2.0、2.1、2.2、2.3 |
| 2.5 | 0.3、0.4、0.5、0.6、0.7、0.8、0.9、1.0、1.1、1.2、1.3、1.4、1.5、1.6、1.7、1.8、1.9、2.0、2.1、2.2、2.3、2.4 |
| 2.6 | 0.3、0.4、0.5、0.6、0.7、0.8、0.9、1.0、1.1、1.2、1.3、1.4、1.5、1.6、1.7、1.8、1.9、2.0、2.1、2.2、2.3、2.4、2.5 |
| 2.7 | 0.3、0.4、0.5、0.6、0.7、0.8、0.9、1.0、1.1、1.2、1.3、1.4、1.5、1.6、1.7、1.8、1.9、2.0、2.1、2.2、2.3、2.4、2.5、2.6 |
| 2.8 | 0.3、0.4、0.5、0.6、0.7、0.8、0.9、1.0、1.1、1.2、1.3、1.4、1.5、1.6、1.7、1.8、1.9、2.0、2.1、2.2、2.3、2.4、2.5、2.6、2.7 |
| 2.9 | 0.3、0.4、0.5、0.6、0.7、0.8、0.9、1.0、1.1、1.2、1.3、1.4、1.5、1.6、1.7、1.8、1.9、2.0、2.1、2.2、2.3、2.4、2.5、2.6、2.7、2.8 |
| 3.0 | 0.3、0.4、0.5、0.6、0.7、0.8、0.9、1.0、1.1、1.2、1.3、1.4、1.5、1.6、1.7、1.8、1.9、2.0、2.1、2.2、2.3、2.4、2.5、2.6、2.7、2.8、2.9 |
| 3.2 | 0.3、0.4、0.5、0.6、0.7、0.8、0.9、1.0、1.1、1.2、1.3、1.4、1.5、1.6、1.7、1.8、1.9、2.0、2.1、2.2、2.3、2.4、2.5、2.6、2.7、2.8、2.9、3.0 |
| 5.0 | 4.15、4.25、4.35、4.55 |
| 10.0 | 8.0、7.0 |
| 12.0 | 10.0、11.0 |
| 1/16" | 0.1、0.13、0.25、0.38、0.5、0.75、1.0、1.2 |
| 1/32" | 0.25、0.5 |
| 1/8" | 1/16"、0.5、0.75、1.0、1.2、2.0、2.2 |
Choosing JunHua means choosing a partner with a complete industrial chain, strong technology research and development capabilities, an efficient production system, strict quality assurance, and excellent customer support.
18 years of experience in high-performance engineering plastics, serving high-barrier industries such as aerospace and medical, trusted globally.
From aggregation to processing, a one-stop PEEK solution, simplifying purchases and reducing risks.
12 items of invention patents, 27 items of utility model patents, with collaboration with universities, continuous innovation.
40+ high-efficiency extrusion lines, 500+ professional teams, quick response to global demands.
Strict quality control, product traceability from aggregation to processing, three-dimensional detection, COA quality report.
Material selection, mold design, custom processing, and complete after-sales support, becoming your strategic partner.
Junhua was founded in 2007 and specializes in the development, production, and sale of high-performance engineering plastics, particularly PEEK, PI, PPSU, and other special polymers. The company has a modern factory occupying 15,000+ square meters , with 40+ extrusion lines ,Complete injection molding and CNC processing equipment, with an annual production capacity of over.
We have obtained multiple international certifications such as AS9100D (Aerospace), ISO9001, IATF1649 (Automotive), ISO13485 (Medical Devices), FDA, RoHS, REACH, SGS , and our products are fully traceable . Our customers cover multiple high-threshold industries in over 60 countries and regions , including aerospace, medical, semiconductor, electronics, food, and new energy vehicles. We are committed to becoming a global leader in PEEK solutions.
27 Utility Model Patents
40+ Extrusion Lines + Cleanroom
30000+ Global Customers | 3 Billion+ Sales
18+ Years of Experience | 40+ Global Employees
AS9100D / ISO13485 / IATF16949 etc.
Serve 60+ Countries
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