Products Description
Our advantages
1. High Dimensional Accuracy
- Our Small Diameter Stainless Steel Tubing is manufactured using a precision cold drawing process, employing high-precision drawing dies and mandrels to prevent dimensional deviations.
- The tubing undergoes solution annealing and stress relief treatment to prevent dimensional deformation during subsequent processing, transportation, or installation.
2. Corrosion Resistance
- Our tubing is made from high-quality 304 stainless steel, which forms a chromium oxide passivation layer on the surface of the tube. Spectrometer testing ensures that its chemical composition meets ASTM A632 standards.
- Our Small Diameter Stainless Steel Tubing undergoes pickling and passivation treatment to enhance its corrosion resistance.
3. Excellent Formability
- Our tubing undergoes controlled cold drawing and heat treatment, which enhances its strength while maintaining its ductility.
- The tubing undergoes rigorous mechanical property testing, including flattening and flaring tests, ensuring it can be used for coiling, U-bending, or complex routing without cracking.
4. Surface Quality and Cleanliness
- Our tubing undergoes precision drawing and bright annealing treatment, resulting in smooth inner and outer surfaces that reduce fluid resistance, particle deposition, or bacterial adhesion.
- The tubing undergoes surface roughness testing, with Ra ≤ 0.04μm. Ultrasonic cleaning is available for instrumentation, pharmaceutical, and high-purity fluid systems.
applications areas
- Medical Devices and Biopharmaceuticals: Infusion sets, syringe needles, respiratory tubing, bioreactor tubing, purified water systems, etc.
- Semiconductors and Electronics: Specialty gas delivery systems, chemical distribution systems, vacuum lines, etc.
- Aerospace and Automotive: Engine fuel/hydraulic lines, sensor pressure lines, brake line casings, etc.
- Energy and Chemicals: Instrument pressure lines, analytical sampling lines, small heat exchanger tubing, etc.
Chemical Composition
| Element | C | Si | Mn | P | S | Cr | Ni | Mo |
| 304 (%) | ≤0.08 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.030 | 18.0–20.0 | 8.0–11.0 | - |
Mechanical Properties
| Property | Tensile Strength (MPa) |
Yield Strength (MPa) |
Elongation (%) |
Hardness (HRB) |
| 304 | ≥520 | ≥205 | ≥40 | ≤90 |
Possible Alternative Grades
| Alternative Grades | Reasons |
| 304L | Its lower carbon content reduces the risk of intergranular corrosion after welding, making it suitable for applications requiring frequent processing. |
| TP321 | It is suitable for high-temperature environments and is used in heated instrument tubing and small-diameter heat exchanger lines. |
| TP316 / TP316L | It offers superior corrosion resistance and is commonly used in chemical processing, pharmaceutical equipment, and coastal facilities. |
Products Show
Testing Equipment
Eddy Current Flaw Detector
Hydraulic Universal Testing Machine
Intergranular Corrosion Tester
Factory Equipment
Pickling equipment
Polishing equipment
Cold drawing equipment
Products Package
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