304 304L Capillary Stainless Steel Pipe
Standard：ASTM GB JIS DIN En
Outer Diameter：4 - 914mm or Customized
Wall Thickness：1 - 150mm or Customized
Length：6m, 12m or as Per Customer′s Requirements
Processing Service：Punching, Bending, Decoiling
Key advantages of 304 304L Capillary Stainless Steel Pipe
304 304L stainless steel capillary tube is a high alloy steel that can resist corrosion in air or chemical corrosive media. The outer diameter tolerance is ±0.01mm, the wall thickness tolerance is ±0.005mm, and the roundness is ≤0.05mm, ensuring the stability of fluid delivery. It is used in medical, electronic, instrumentation and other fields that require extremely high precision and corrosion resistance of pipes.
304 304L stainless steel precision tube has good softness, corrosion resistance, high temperature resistance, wear resistance, tensile resistance, waterproofness, and provides excellent electromagnetic shielding performance. It can be freely bent into various angles and curvature radii, and has the same softness and durability in all directions.
304 304L Stainless Steel Capillary Pipe Stockist
Why choose our 304 stainless steel capillary?
GNEE price is 10% lower than the market price, and supports small batch trial orders (minimum order of 100kg)
Customized service: coil forming, precision bending (R=3D) and surface treatment
Quality assurance: chemical composition report and eddy current flaw detection (ET) are provided for each batch
If you need to know the price of 304 stainless steel capillary, precision dimensional tolerance test report or free samples, please click the button below to communicate with our technical team!
304 / 304L Small Diameter SS Pipe Specifications
| Parameter | Range |
|---|---|
| Outer Diameter (OD) | 0.35mm – 6.35mm (Standard: 0.5mm, 1mm, 2mm, 3mm, 4mm, 5mm, 6mm) |
| Wall Thickness (WT) | 0.1mm – 1.2mm (Typical: 0.15mm, 0.2mm, 0.3mm, 0.5mm, 1mm) |
| Inner Diameter (ID) | OD – 2×WT (Calculated based on OD and WT) |
| Length | 1m, 3m (Standard), or custom-cut to 12m |
| Material | 304 (UNS S30400) / 304L (UNS S30403) |
| Standards | ASTM A269, EN 10312, GB/T 3094 |
| Surface Finish | Bright Annealed (BA), Electropolished (Ra ≤ 0.4μm) |
| Pressure Rating | Up to 50MPa (Depending on OD/ID ratio and material thickness) |
304 vs 304L Stainless Steel: Material Difference Comparison
| Property | 304 Stainless Steel | 304L Stainless Steel |
|---|---|---|
| Weldability | Post-weld heat treatment required to prevent intergranular corrosion | Ultra-low carbon design eliminates need for post-weld annealing |
| Corrosion Resistance | Excellent in general environments (air, water) | Superior resistance in high-temperature/humid or chloride-rich conditions |
| Tensile Strength | ≥515 MPa (75 ksi) | ≥485 MPa (70 ksi) (slightly lower but better ductility) |
| Typical Applications | Non-critical corrosive scenarios (e.g., machinery parts) | High-purity/aggressive environments (medical devices, food processing, chemical industri |
304 stainless steel precision capillary pipe Suppliers
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304 304L Brushed Polished steel pipe transportation
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