ASTM A269 Stainless Steel Capillary Tube with Fine-Bore Capability for Corrosion Resistant Syringe Needle Applications
Basic Properties
Place of Origin:
CHINA
Brand Name:
TORICH
Certification:
ISO9001, TS16949
Model Number:
SS201 304 316
Trading Properties
Minimum Order Quantity:
1Ton
Price:
negotiable
Payment Terms:
L/C,D/A,D/P,T/T,Western Union
Supply Ability:
60000ton/year
Product Summary
ASTM A269 201 304 316 Welded Stainless Steel Tube Syringe Needle Tube Product Overview ASTM A269 welded stainless steel capillary tube is a precision small-diameter tube used for syringe needle cannulas, medical device components, dosing tubes, and fine fluid-transfer assemblies. For syringe needle ...
Product Details
Highlight:
stainless steel round tube
,stainless tube steel
Material:
Austenitic Stainless Steel
Standard:
ASTM A269; ISO 9626 Available For Needle Tubing Projects; ASTM A213, ASTM A312, ASTM A789, ASTM A790 Available Upon Request Where Applicable
Grade:
TP201, TP304, TP304L, TP316, TP316L
Outer Diameter:
0.10–219.10 Mm; Syringe Needle Capillary Sizes Can Be Produced In Fine-gauge OD Ranges
Wall Thickness:
0.05–20.00 Mm; Thin-wall Capillary Tube Available
Length:
1–12 M, Cut-to-length Or Coil Form Available Upon Request
Heat Treatment:
Solution Annealed / Bright Annealed Depending On Grade, Size, And Surface Requirement
Testing:
Dimensional Inspection, Visual Inspection, Hydrostatic Or Non-destructive Electric Test Where Required By ASTM A269
Product Description
ASTM A269 201 304 316 Welded Stainless Steel Tube Syringe Needle Tube
Product Overview
ASTM A269 welded stainless steel capillary tube is a precision small-diameter tube used for syringe needle cannulas, medical device components, dosing tubes, and fine fluid-transfer assemblies. For syringe needle manufacturing, buyers normally focus on dimensional stability, inner-bore cleanliness, weld integrity, corrosion resistance, and consistent mechanical performance after cold drawing and heat treatment. Grades 304 and 316/316L are the preferred choices for medical and corrosive-fluid applications, while 201 can be selected for cost-sensitive non-implant or industrial needle-type components.
Specifications
| Material | Austenitic stainless steel |
| Standard | ASTM A269; ISO 9626 available for needle tubing projects; ASTM A213, ASTM A312, ASTM A789, ASTM A790 available upon request where applicable |
| Grade | TP201, TP304, TP304L, TP316, TP316L |
| Outer Diameter | 0.10-219.10 mm; syringe needle capillary sizes can be produced in fine-gauge OD ranges |
| Wall Thickness | 0.05-20.00 mm; thin-wall capillary tube available |
| Length | 1-12 m, cut-to-length or coil form available upon request |
| Tolerance Range | OD: ±0.20 mm standard; wall thickness: ±10% standard; tighter tolerances can be discussed for capillary and needle tubing |
| Straightness | Precision straightened; typical straightness can be controlled according to drawing and final cut length |
| Surface Condition | Bright annealed, pickled, polished, satin, hairline, 400#, 600#, 800#, mirror polished |
| Heat Treatment | Solution annealed / bright annealed depending on grade, size, and surface requirement |
| Tube Type | Welded, welded and drawn, capillary tube, syringe needle tube |
| Testing | Dimensional inspection, visual inspection, hydrostatic or non-destructive electric test where required by ASTM A269 |
Key Features
| Feature | Technical Value for Buyers |
|---|---|
| Fine-bore capability | Suitable for micro-fluid transfer, syringe needle cannulas, dosing needles, and precision dispensing tubes |
| Austenitic corrosion resistance | TP304 provides general corrosion resistance; TP316/316L contains 2.00-3.00% Mo for better resistance in chloride-containing or sterilization-related environments |
| Low-carbon weldability | TP304L and TP316L reduce carbon to max. 0.035%, supporting improved resistance to sensitization after welding or heat exposure |
| Controlled mechanical strength | 304/316 grades typically meet minimum tensile strength of 515 MPa and yield strength of 205 MPa; 304L/316L typically meet minimum tensile strength of 485 MPa and yield strength of 170 MPa |
| Smooth surface options | Bright annealed, polished, and mirror surface finishes help reduce contamination risk and support easier cleaning |
| Small-size needle compatibility | ISO 9626 needle tubing projects can be aligned with metric needle tubing sizes from 3.4 mm to 0.18 mm when required |
| Process flexibility | Welded and drawn processing improves dimensional consistency, surface quality, and concentricity compared with ordinary welded tube |
Our Advantages
| Buyer Concern | Practical Solution |
|---|---|
| "Can welded capillary tubing meet needle-level dimensional control?" | We can control OD, wall thickness, straightness, cutting length, and surface finish according to the buyer's drawing. For syringe needle projects, welded-and-drawn processing is recommended to improve roundness, inner-bore consistency, and surface finish. |
| "How do you reduce risk from weld defects or leakage?" | Production can include visual inspection, dimensional inspection, and hydrostatic or non-destructive electric testing where required. For demanding capillary applications, additional sampling for burst, collapse, straightness, and inner-bore inspection can be arranged. |
| "Which grade should we choose for syringe needle tubing?" | TP304 is suitable for general needle and medical-device components. TP316/316L is recommended where chloride exposure, sterilization environment, or higher corrosion resistance is required. TP201 is mainly recommended for cost-sensitive non-critical or industrial needle-type parts. |
Applicable Standards
| Standard | Scope |
|---|---|
| ASTM A269 | Seamless and welded austenitic stainless steel tubing for general corrosion-resisting and low- or high-temperature service |
| ASTM A213 | Seamless ferritic and austenitic alloy-steel boiler, superheater, and heat-exchanger tubes |
| ASTM A312 | Seamless, welded, and heavily cold-worked austenitic stainless steel pipe |
| ISO 9626 | Stainless steel needle tubing for medical device manufacturing |
| EN 10217-7 | Welded stainless steel tubes for pressure purposes |
| JIS G3459 | Stainless steel pipes |
| GB/T 14976 | Stainless steel seamless tubes for fluid transport |
| GOST 9941 | Seamless cold- and heat-deformed corrosion-resistant steel tubes |
Application Field
Disposable hypodermic syringe needle cannula.
Chemical Composition
| Grade | UNS | C max % | Mn % | P max % | S max % | Si max % | Cr % | Ni % | Mo % | N max % |
|---|---|---|---|---|---|---|---|---|---|---|
| TP201 | S20100 | 0.15 | 5.50-7.50 | 0.060 | 0.030 | 1.00 | 16.00-18.00 | 3.50-5.50 | -- | 0.25 |
| TP304 | S30400 | 0.08 | 2.00 max | 0.045 | 0.030 | 1.00 | 18.00-20.00 | 8.00-11.00 | -- | -- |
| TP304L | S30403 | 0.035 | 2.00 max | 0.045 | 0.030 | 1.00 | 18.00-20.00 | 8.00-12.00 | -- | -- |
| TP316 | S31600 | 0.08 | 2.00 max | 0.045 | 0.030 | 1.00 | 16.00-18.00 | 10.00-14.00 | 2.00-3.00 | -- |
| TP316L | S31603 | 0.035 | 2.00 max | 0.045 | 0.030 | 1.00 | 16.00-18.00 | 10.00-15.00 | 2.00-3.00 | -- |
Mechanical Properties
| Grade | Tensile Strength min | Yield Strength min | Elongation min | Hardness |
|---|---|---|---|---|
| TP201 | 685 MPa typical | 292 MPa typical | 56% typical longitudinal | HRB 85 typical |
| TP304 | 515 MPa / 75 ksi | 205 MPa / 30 ksi | 35% | HRB 90 max typical |
| TP304L | 485 MPa / 70 ksi | 170 MPa / 25 ksi | 35% | HRB 90 max typical |
| TP316 | 515 MPa / 75 ksi | 205 MPa / 30 ksi | 35% | HRB 90 max typical |
| TP316L | 485 MPa / 70 ksi | 170 MPa / 25 ksi | 35% | HRB 90 max typical |
Product Images
Frequently Asked Questions
Q: Are you trading company or manufacturer?
A: Manufacturer, also can do trading.
Q: How long is your delivery time?
A: Generally speaking, it is 10-15 days if the goods are in stock, or it is 30-40 days if the goods are not in stock, it is according to quantity.
Q: Do you provide samples? Is it free or extra?
A: Yes, we could offer the sample for free charge but need pay the cost of freight.
Q: What is your terms of payment?
A: Payment <= 2000 USD, 100% in advance. Payment >= 2000 USD, 30% T/T in advance, balance before shipment. If you have another question, please feel free to contact with me.
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