Stainless Steel Hypodermic Tubing

Specifications

Item	Stainless Steel Hypodermic Tubing
Available Materials	304, 304L, 316L
Standards	ISO 9626, ASTM A908, GB/T 18457
Sizes	12G-34G medical needle gauge (OD 0.15 mm-2.7 mm)
Wall Thickness	0.025mm~0.5mm
Length	Straight lengths/coils, custom cut-to-length available
Surface Treatment	Bright annealing, inner & outer mirror polishing, medical-grade clean washing, electropolishing
Processing Services	Cut-to-length, tip grinding & tapering, side hole drilling, end chamfering, deburring
Packing	Polybag, Carton, Wooden Case etc

Note: The larger the Gauge number, the smaller the tube OD.

Material Selection

304 stainless steel hypodermic tubing: Good corrosion resistance and machinability, widely used in general medical components, veterinary instruments, and general industrial applications; not recommended for direct human contact.

304L stainless steel hypodermic tubing: Low-carbon version with improved weldability and intergranular corrosion resistance, suitable for medical components and industrial applications with slightly higher corrosion resistance requirements.

316L stainless steel hypodermic tubing: Contains molybdenum for superior corrosion resistance, resistant to body fluids, medications, and corrosive chemical media. The preferred material for medical device manufacturing.

Product Classification

By Wall Structure

1. RW (Regular Wall): Uniform wall thickness, high strength, resistant to bending. Most versatile, suitable for routine injection, puncture, and probe applications.
2. TW (Thin Wall): Thinner wall, larger inner diameter, higher flow rate. Ideal for infusion, micro-delivery, and sampling lines.
3. ETW (Extra Thin Wall): Ultra-thin wall design, suitable for minimally invasive puncture and fine medical aesthetic devices, with low puncture resistance.
4. UTW (Ultra Thin Wall): Extremely thin wall, large inner diameter. Used in high-end precision medical devices and micro-precision fluid control systems.

Performance Advantages

1. Medical-grade compliance: Strict control of heavy metal release, meeting medical device standards, resistant to high-temperature sterilization.
2. Ultra-high dimensional precision: Inner/outer diameter tolerances in the micron range, roundness error < 0.003 mm; smooth inner wall with minimal fluid resistance.
3. Excellent surface cleanliness: Burr-free, ultrasonically cleaned and passivated, free of oil and metal debris residue.
4. Superior mechanical properties: Balanced strength and toughness, resistant to deformation, supports flaring, tip grinding, bending, and other secondary processing.

Main Application Areas

1. Medical consumables: Raw tubing for disposable syringe needles, hypodermic needles, insulin needles, blood collection needles, and other clinical injection consumables;
2. Minimally invasive & medical aesthetics: Puncture needles, biopsy needles, minimally invasive surgical instrument tubing, tattoo needle blanks, precision injection tubes for medical aesthetics, cosmetic puncture tubing;
3. Precision industrial: Dispensing needles for dispensing machines, capillary tubes for electronics, microfluid transfer tubes for instruments, capillary tubes for analytical equipment;
4. Laboratory equipment: Injection needles for analytical instruments, micro flow guide tubes for experimental equipment; clean and residue-free, suitable for high-precision laboratory testing.

Manufacturing Process & Quality Control

All products are made from seamless stainless steel tube blanks through multi-stage precision cold drawing.

Process Flow:

1. Raw material selection: Medical-grade stainless steel tube blanks.
2. Cold drawing: Progressive drawing through precision dies to target dimensions.
3. Bright annealing: Eliminates internal stress, optimizes material toughness.
4. Precision straightening: Ensures tube straightness.
5. Dimensional inspection: Laser diameter measurement, full or sampling inspection.
6. Surface treatment: Polishing, ultrasonic cleaning, passivation as required.
7. Cleanroom packaging for shipment to prevent secondary contamination.

Key Process Notes: Fully seamless production with no weld defects. Each batch undergoes multi-point inspection for dimensions, roundness, straightness, and cleanliness to ensure medical-grade quality standards.

Why Choose Glory Steel

• Direct from source factory: No middlemen markups, equipped with complete precision cold drawing, polishing, and clean processing production lines. Outstanding cost-effectiveness for long-term supply.
• Strict medical-grade quality control: Cleanroom production, full-dimensional precision inspection, strictly following ISO and ASTM medical tubing standards, with tight control over eccentricity, burrs, and surface defects.
• Full range in stock: Covers 12G-34G full series needle tubing, multiple wall thicknesses and materials available to meet different precision and application requirements.
• Precision customization capability: Supports tip grinding, chamfering, side hole drilling, bending, cut-to-length, mirror polishing, and other deep processing. Custom non-standard precision tubing accepted.