Yuhong Group Co.,Ltd
Yuhong Holding Group Co.,LTD
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Stainless Steel Capillary Needle ASTM A269 TP304 1.4301 Needle Tube
Capillary Tube is a long, narrow tube of constant diameter. The word "capillary” is a misnomer since surface tension is not important in refrigeration application of capillary tubes.
Stainless Steel Capillary Pipes & Tubes are used in different applications of intra/extra cellular biology, separation sciences, hematology sampling and study, biotechnology, and biochemistry.
-Tight tolerances
-Free from oil & dust particles from inside
-Rust resistant
Applications Of Stainless Steel Capillary Tube
-Medical device industry – injection needle tube, puncture needle tube
-Industrial electric heating tube, oil tube
-Temperature sensor, Sensor tube, Instrument tube
-Automobile tube
-Food industrial pipe
A269 TP304 STAINLESS STEEL TUBING EQUIVALENT GRADES
| Grade | UNS | Old British | Euronorm | Swedish SS | Japanese JIS | ||
|---|---|---|---|---|---|---|---|
| BS | En | No | Name | ||||
| ASTM A269 TP304 Tubes | S30400 | 304S31 | 58E | 1.4301 | X5CrNi18-10 | 2332 | SUS 304 |
TP304 CHEMICAL COMPOSITION
| Grade | C | Mo | Ni | N | Mn | Si | P | S | Cr | |
|---|---|---|---|---|---|---|---|---|---|---|
| ASTM A269 TP304 Tubes | minimum | – | 8.0 | – | – | – | – | – | – | 18.0 |
| maximum | 0.08 | 10.5 | 0.10 | 2.0 | 0.75 | 0.045 | 0.030 | 20.0 | ||
ASTM A269 TP304 TUBE PHYSICAL PROPERTIES
| Grade | Density (kg/m³) | Elastic Modulus (GPa) | Mean Coefficient of Thermal Expansion (μm/m/°C) | Thermal Conductivity (W/m.K) | Specific Heat 0-100°C (J/kg.K) | Electrical Resistivity (nΩ.m) | |||
|---|---|---|---|---|---|---|---|---|---|
| 0-100°C | 0-315°C | 0-538°C | at 100°C | at 500°C | |||||
| A269 TP304 | 8000 | 193 | 17.2 | 17.8 | 18.4 | 16.2 | 21.5 | 500 | 720 |
ASTM A269 TP304 TUBE MECHANICAL PROPERTIES
| Grade | Tensile Strength (MPa) minimum | Yield Strength 0.2% Proof (MPa) minimum | Elongation (% in 50mm) minimum | Hardness | |
|---|---|---|---|---|---|
| Rockwell B (HR B) maximum | Brinell (HB) maximum | ||||
| A269 TP304 Tube | 515 | 205 | 40 | 92 | 201 |
Stainless Steel Capillary Tube Size Range
Gauge | Outside Diameter Tolerance mm | Regular Wall Thickness (RWT) mm | Thin Wall Thickness mm | Extra Thin Wall Thicknessmm | Ultra Thin Wall Thickness mm |
| 30 | 0.304 – 0.317 | 0.064 – 0.089 | |||
| 29 | o.330 – 0.342 | 0.064 – 0.089 | |||
| 28 | 0.355 – 0.368 | 0.076 – 0.102 | |||
| 27 | 0.406 – 0.419 | 0.089 – 0.115 | 0.064 – 0.089 | ||
| 26 | 0.457 – 0.469 | 0.089 – 0.114 | |||
| 25 | 0.508 – 0.520 | 0.115 – 0.140 | 0.089 – 0.114 | ||
| 24 | 0.558 – 0.571 | 0.114 – 0.140 | 0.089 – 0.114 | 0.051 – 0.102 | |
| 23 | 0.635 – 0.647 | 0.140 – 0.165 | 0.089 – 0.114 | 0.051 – 0.102 | |
| 22 | 0.711 – 0.723 | 0.140 – 0.165 | 0.096 – 0.121 | 0.077 – 0.102 | 0.051 – 0.102 |
| 21 | 0.812 – 0.825 | 0.140 – 0.165 | 0.102 – 0.127 | 0.051 – 0.102 | |
| 20 | 0.901 – 0.914 | 0.108 – 0.165 | 0.108 – 0.134 | ||
| 19 | 1.054 – 1.079 | 0.166 – 0.216 | 0.102 – 0.140 | 0.070 – 0.108 | |
| 18 | 1.257 – 1.282 | 0.191 – 0.241 | 0.127 – 0.165 | 0.083 – 0.121 | 0.051 – 0.102 |
| 17 | 1.460 – 1.485 | 0.177 – 0.229 | 0.115 – 0.152 | 0.083 – 0.127 | 0.057 – 0.102 |
| 16 | 1.638 – 1.663 | 0.204 – 0.254 | 0.127 – 0.165 | 0.096 – 0.133 | 0.070 – 0.121 |
| 15 | 1.816 – 1.841 | 0.204 – 0.254 | 0.127 – 0.165 | 0.096 – 0.134 | 0.070 – 0.121 |
| 14 | 2.082 – 2.133 | 0.216 – 0.292 | 0.165 – 0.229 | 0.114 – 0.165 | 0.076 – 0.134 |
| 13 | 2.387 – 2.438 | 0.267 – 0.343 | 0.191 – 0.267 | ||
| 12 | 2.743 – 2.749 | 0.267 – 0.321 | |||
| 11 | 3.023 – 3.073 | 0.293 – 0.368 | 0.216 – 0.292 | ||
| 10 | 3.378 – 3.429 | 0.318 – 0.394 | 0.216 – 0.292 |
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