TORICH INTERNATIONAL LIMITED
TORICH INTERNATIONAL LIMITED The Steel Tube Maker
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201 304 316 Stainless Steel Medical Needle Tube
| Name | Stainless needle tube |
| Standard | ASTM A213,ASTM A312,ASTM A789,ASTM A790 |
| Material Grade | 201/202/304/316/S31803/S32750 |
| Outer Diameter | 0.1mm--219.1mm |
| Thickness | 0.05mm - 20mm |
| Length | ≤12000mm or as per customer request |
| Tolerance | a) Outer Diameter: +/- 0.2mm |
| b) Thickness: +/- 10% OR as customer request | |
| c) Length: +/- 10mm | |
| Surface | Satin / Hairline :180#, 320# |
| Polish : 400# ,600# ,800# or Mirror surface | |
| Pickling | |
| Application | Decoration ,( Processed into railings, handrails, doors and Windows ),medical,industry,etc |
| Packaing | Plastic bag/woven packing(please send details packing to us if you have other requirements) |
| Chemical composition | Element | 201 | 202 | 304 | 316 | S31803 | S32750 | |
| C | ≤0.15 | ≤0.15 | ≤0.08 | ≤0.08 | ≤0.030 | ≤0.030 | ||
| Si | ≤1.00 | ≤1.00 | ≤1.00 | ≤1.00 | ≤1.00 | ≤0.80 | ||
| Mn | 5.5-7.5 | 7.5-10.0 | ≤2.00 | ≤2.00 | ≤2.00 | ≤1.20 | ||
| P | ≤0.060 | ≤0.060 | ≤0.045 | ≤0.045 | ≤0.030 | ≤0.035 | ||
| S | ≤0.030 | ≤0.030 | ≤0.030 | ≤0.030 | ≤0.020 | ≤0.020 | ||
| Cr | 16-18 | 17-19 | 18-20 | 16-18 | 21-23 | 21-23 | ||
| Ni | 3.5-5.5 | 4.0-6.0 | 42958 | 43022 | 4.5-6.5 | 6.0-8.0 | ||
| Mo | 2.0-3.0 | 2.5-3.5 | 3.0-5.0 | |||||
| N | ≤0.25 | ≤0.25 | 0.08-0.2 | 0.24-0.32 | ||||
| Cu | ≤0.50 | |||||||
| Mechanical properties | Material Item | 201 | 202 | 304 | 316 | S31803 | S32750 | |
| Tensile Strength (MPa) | ≥655 | ≥620 | ≥515 | ≥515 | ≥620 | ≥800 | ||
| Yield Strength (MPa) | ≥260 | ≥310 | ≥205 | ≥205 | ≥450 | ≥550 | ||
| Elongation (%) | ≥35 | ≥35 | ≥35 | ≥35 | ≥25 | ≥15 | ||
| Hardness (HV) | ≤230 | ≤230 | ≤200 | ≤200 | ≤303 | ≤323 | ||
