Shaped Wire Manufacturer

If you buy shaped wire, the difference between suppliers is not the steel — it is whether the mill controls the two steps that actually make a section: the die and the pass schedule. ERQI WIRE is a cold-drawing mill. We cut our own shaped dies, run our own pass schedules, and inspect every coil against the drawing before it ships. That is the whole pitch; the rest of this page is what it means in practice.

What we manufacture

Non-round wire sections from 0.5 to 12 mm circumscribed circle: flat, square, triangular, half-round, trapezoid, T and asymmetric profiles, plus anything that starts as your drawing. Standard range and typical sizes are catalogued on the profile wire sections page; specials are covered under custom profile wire.

How a section is actually made here

A shaped section is drawn through a carbide die in several passes, with intermediate anneals where the alloy needs them, then straightened and coiled. Two things decide whether the wire comes out right:

• The die. We cut shaped dies in-house. A correction after the first trial does not mean sending tooling abroad and waiting three weeks; it means editing the die on our own bench.
• The pass schedule. How much reduction each pass takes, and where the anneal sits. This is the know-how that keeps an asymmetric section from twisting to the heavy side — the process walkthrough shows the sequence.

How it is checked before it ships

Every batch is measured against the drawing: section dimensions on the functional faces, straightness, and surface. We measure with section-specific gauges, not by eye, and the report travels with the coil. If your incoming inspection checks different features, tell us — it costs nothing to add a dimension to the report and a lot to disagree about it after delivery.

Materials

304 for general duty, 316L for chemical and food service, 430 where cost rules and the environment is dry. Copper, aluminium and nickel alloys on request — conductivity or weight sometimes sets the section before strength does. If you are unsure which grade fits the duty, say what the part does and we will propose one; the logic is in shaped wire materials.

What mills like us are good for — and not good for

Good fit: sections from 0.5–12 mm, batches from ~50 kg once tooling exists, repeat volumes where the die pays for itself, and any part where machining a profile from bar wastes material and time.

Wrong fit: one-off prototypes below a few kilos (the die costs more than the wire), sections above 12 mm where roll-forming then drawing is needed and the minimum quantity changes, and parts that need machining after drawing — we supply the section, your machine shop finishes it.

Working with us

Send the section drawing, the duty and the quantity rhythm. You get a quote with tooling, sample and batch separated — the four-number structure is explained on the custom profile wire page. Sample coils come from the first good pulls, and the batch follows your sign-off, not before. Six questions to vet any shaped wire manufacturer — including us — are listed in the companion article; ask them all.

Specifications

The full range is under shaped wire, the section drawings are on the drawings page, and the company background is on about. Send the drawing and the duty — quotes go out with all four numbers separated.