Carbon Steel Wire

Carbon Steel Wire & High Carbon Steel Wire Manufacturers in India

AB Steel supplies carbon steel wire to industries where a hardness variation of a few points on the Rockwell scale decides whether a batch passes or gets scrapped. Wire diameter tolerance and surface condition matter as much as chemistry once a coil reaches the customer's line.

The carbon percentage is what separates one wire grade from another. Wire below 0.3% carbon bends and welds without cracking, which suits fencing and general fabrication work. Medium carbon grades between 0.3% and 0.6% carbon balance ductility and strength. High Carbon Steel Wire carries carbon above 0.6%, and that extra carbon content is what allows the wire to respond to heat treatment with a hard, wear-resistant surface.

Quenching changes the internal structure of High Carbon Steel Wire without changing its chemistry. Heating the wire past its critical temperature and cooling it rapidly in oil or air forces carbon atoms into a hard martensitic lattice. Tempering afterward relieves internal stress so the wire resists deformation without turning brittle under load. This sequence is why the wire holds an edge in springs, cutting tools, and high-tension cable applications where lower carbon grades would simply stretch.

Wire diameter affects how evenly that hardness reaches the core. AB Steel supplies wire from 0.5 mm to 10 mm, and thinner sections harden more uniformly through the cross-section because heat moves through less material during the quench. Engineers specifying wire for spring applications need to account for this property when a part requires hardness at its center, not just at the surface.

Surface finish adds a second layer of performance beyond the base metal. A bright finish suits indoor mechanical parts with limited corrosion exposure, while galvanized and coated finishes extend service life outdoors or in humid plants. None of these finishes change the core mechanical rating; they only change how long the wire resists atmospheric attack before that rating starts to degrade.

Compliance standards exist because wire performance has to repeat across every batch, not just the sample that gets tested. ASTM A228, ASTM A510, and BS 1052 set the required composition, tensile strength, and dimensional tolerance that AB Steel must meet before shipping a coil. Buyers comparing High carbon steel wire manufacturers in India should check which standards a supplier certifies against before comparing price per kilogram, since a coil that drifts out of tolerance mid-run creates rework costs that erase any savings on the invoice.

Choosing the right wire grade means matching the carbon content and heat treatment to the load the finished part will carry. A spring that has to return to shape after thousands of cycles needs a different specification than a tie wire that only holds static tension. Getting that match right at the wire stage prevents failure much further down the production line.

ASTM A105 Carbon Steel Wires Specification

Dimensions : ASTM, ASME and API

Specifications : ASTM A105 / ASME SA105

Diameters : 0.08 – 14.00 mm dia.

Hardness : Soft, 1 / 4 Hard, 1 / 2 Hard, 3 / 4 Hard & Full Hard

Finish : Bright, Matte Finish, Soap Coated or Electro Polish Quality

Type : Wire, Wire Bobbin, Coil, & Filler Wire.

Our Carbon Steel Wire conforms to NACE MR0175/ISO 15156

Types of Carbon Steel Wire

Frequently Asked Questions

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