Huizhou Pengchengrui Technology Co., Ltd.

The dimensions of ultra-thin-walled nickel-titanium alloy tubes primarily focus on three core dimensions: outer diameter, wall thickness, and length. These tubes come in differentiated specifications tailored for various application scenarios such as medical, industrial, and capillary tubes. Additionally, most manufacturers support customization. Below is a detailed introduction to the dimensions of mainstream products in the industry in 2025:

1. Outer diameter

    In the medical field, dimensions are concentrated within a narrow range to accommodate minimally invasive requirements, commonly ranging from 0.25 to 3.0mm. For instance, the outer diameter of tubing suitable for puncture needles and other instruments ranges from 0.25 to 0.51mm, while neurointerventional devices commonly utilize tubing with an outer diameter of 0.8mm. Additionally, there are outer diameter models like 1.327mm that are suitable for specific implantable devices. Some manufacturers also offer a conventional minimally invasive outer diameter specification of 0.3mm.

    Industrial and general-purpose fields: The optional range is wider, covering 1.61 - 30mm. Tubes for industrial sensing are mostly 2.0 - 8.0mm, while special structural tubes come in specifications ranging from 8.0 - 25mm. There are also general-purpose models with an outer diameter of 6.0mm, and some manufacturers can even supply large-sized ultra-thin-walled tubes with an outer diameter of up to 30mm, suitable for equipment structural components and other needs.

    Capillary type: The outer diameter is relatively fixed and relatively small, with a typical specification of 1.61mm, suitable for scenarios where high precision in tubing is required, such as electronics and precision sensing.

2. Wall thickness

    Medical ultra-thin specifications: To meet the needs of intervention and implantation, the wall thickness is often as low as 0.02 - 0.3mm. For example, there are customized models with an inner diameter of 1.2mm and a wall thickness of only 0.064mm, as well as 0.8mm outer diameter tubing with a wall thickness of 0.1mm, which can achieve 360° bending without deformation; the wall thickness of tubing suitable for tiny instruments can even reach 0.04mm, precisely matching the operational requirements of tiny human channels.

    Industrial conventional ultra-thin specifications: The wall thickness range is wider, typically ranging from 0.08 to 3.0mm. Industrial tubes with an outer diameter of 6.0mm often come with a wall thickness of 0.2mm, while industrial sensing tubes commonly have a wall thickness of 0.2 to 1.0mm. Some special structural tubes can have a wall thickness of up to 3.0mm, ensuring both thin-walled characteristics and the structural strength required for industrial scenarios.

    Capillary type: The wall thickness commonly starts at 0.1mm, which is suitable for the precise delivery and sensing functions of capillaries. It can be matched with an outer diameter of 1.61mm to form a standard capillary specification.

Ultra-thin-walled nickel-titanium alloy tube

3. Length

    Standard short segment length: There are various fixed short sizes, such as a dedicated specification of 165mm and a conventional short segment length of 1000mm. Some industrial tubing has a single segment length of ≤1000mm, suitable for assembly of small equipment and small-batch experimental needs.

    Medium and long custom lengths: The conventional custom lengths are mostly 1-3m, and some manufacturers can provide long-segment tubing up to 6000mm; there are also products labeled with a maximum length of half a meter, which can also be cut into specific lengths such as 6.5 inches (approximately 165.1mm), meeting the different assembly and usage length requirements of medical devices and industrial equipment.

In addition, products for certain special scenarios come in fixed size combinations, such as industrial universal tubes with an outer diameter of 6.0mm, an inner diameter of 5.6mm, and a wall thickness of 0.2mm, as well as medical customized tubes with an outer diameter of 1.327mm, an inner diameter of 1.2mm, and a wall thickness of 0.064mm, which can directly meet the production needs of standardized equipment or instruments.

Wuge nickel-titanium alloy materials can provide nickel-titanium alloy tubes with an outer diameter ranging from 1mm to 30mm, with a complete range of specifications. Welcome to inquire and cooperate.