Fine Stainless Wire - Strength and Ductility in Balance
Fine stainless steel wire high strength
,Fine stainless wire ductility balance
,Fine stainless steel wire corrosion resistant
Fine Stainless Wire - Strength and Ductility in Balance
Product Introduction
TOPONE draws fine stainless steel wire down to 0.15 mm for weaving, braiding, medical devices, filtration and precision springs. Below roughly 1 mm, the usual trade-off between strength and ductility stops being a datasheet detail and becomes the deciding factor: too soft and the wire snags or kinks on the machine, too hard and it breaks on the bobbin. This page explains how we balance the two and how to order the temper you actually need.
Product Specifications
| Parameter | Specification |
|---|---|
| Grades | 302 / 304 / 304L / 316 / 316L |
| Fine diameter range | 0.15-1.0 mm (larger sizes to 12 mm) |
| Diameter tolerance | from +/-0.003 mm on fine sizes |
| Tensile range | soft annealed to full hard, by agreement |
| Surface | bright drawn, soap coated, electrolytic polished |
| Spooling | precision layer wound, 250 g to 20 kg spools |
Why the Balance Matters Below 1 mm
Cold drawing raises tensile strength but spends ductility. A 0.2 mm wire at full-hard temper may reach over 2000 MPa - excellent for a fine spring, but it will not survive tight weaving without breaking. The same wire soft annealed bends easily but kinks and will not stay straight under tension. Between those poles lies a working window, and it is set by the last anneal and the total draft afterwards.
Choosing the Temper
- Woven and braided mesh: medium temper - enough strength for tension, enough ductility to pass the hedgle without breaking.
- Fine springs and electrical contacts: hard temper, where the strength sets the force.
- Redrawing or rewinding: soft annealed, to leave ductility for the next pass.
- Medical and filtration weave: specify elongation minimum, not only tensile.
How We Hold the Window
- Each coil lot is tensile tested, and the elongation is reported alongside strength on the 3.1 MTC.
- Line tension and bobbin winding are controlled so the wire is neither work-hardened nor slack on the spool.
- Diameter is laser-measured along the coil, keeping tolerance within a few microns on fine sizes.
- Surface is checked for drawing faults - a single die mark can break a 0.15 mm wire.
Applications
- Fine woven mesh and filtration cloth
- Braiding and cable over-sheathing
- Medical guide components and micro springs
- Musical and precision instrument wire parts
Product Advantages
- Tolerances down to +/-0.003 mm on fine diameters
- Temper selected per application, verified by tensile test
- Layer-wound spools that pay off without tangles
- 3.1 MTC with both strength and elongation per lot
Quality Control
Every coil lot is checked for diameter, tensile strength and elongation, with results on the mill certificate. Spool weight and winding quality are verified before packing.
Selection and Ordering Notes
- Give the diameter and the tolerance you need - fine sizes are measured in microns.
- Describe the process the wire must survive: weaving, coiling, redrawing.
- State a minimum elongation if ductility is critical.
- Choose spool size and winding type for your pay-off equipment.
- Request the tensile and elongation data with the MTC.
