Our products

Steel wires

Every wire in this range is drawn at our own plant in Waliv, from wire rod to finished coil. We make mild steel wire in hard, half hard and soft (annealed) grades, high carbon wire for springs and ropes, and zinc coated G.I. wire. Full specifications are given for each product.

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Coil of bright mild steel wire — Steel wires

Group 1

Mild steel wires

Mild steel (M.S.) wire is iron with 0.05% to 0.20% carbon. The carbon makes it stronger and harder than pure iron, and the more carbon it has, the harder it is. We make it hard (H.B.), half hard (H.H.B.) and soft (annealed), from 0.50 to 6.00 mm, and as binding and baling wire. It is used for fasteners, rivets, nails, springs, wire ropes, bales, wire mesh, weld mesh, fencing and needles.

Prime Wires hard bright (H.B.) mild steel wire coil

01 · Hard drawn, bright finish

H.B. wire (hard bright)

H.B. wire is low carbon mild steel wire, cold drawn through dies with no annealing after the last pass. This keeps the wire stiff and strong, and leaves the surface bright and clean.

Galvanising & copper coating Construction Spring manufacturing Nail manufacturing Fasteners Welded mesh Paint rollers Display & showcase stands

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H.B. wire (hard bright): technical specification
Property	Value
Base metal	Low carbon mild steel
Carbon content	0.05 to 0.20%
Condition	Cold drawn, not annealed (hard drawn)
Tensile strength	550 to 900 N/mm², falling as diameter rises
Elongation	3 to 8%
Diameter range	0.50 to 6.00 mm
Diameter tolerance	± 0.03 mm to ± 0.08 mm by size
Finish	Bright, descaled and pickled
Wrapping test	8 close turns on its own diameter without fracture
Coil weight	On request
Applicable standard	IS 280 : 2006
Test certificate	Mill test certificate on request

Prime Wires half hard bright (H.H.B.) mild steel wire coil

02 · Half hard, formable

H.H.B. wire (half hard bright)

H.H.B. wire is the same low carbon steel as H.B. wire, annealed after drawing to a half hard condition. It is softer and easier to shape, so it does not crack when nails, screws and rivets are cold headed from it.

Nails & screws Rivets Nuts & bolts Welded mesh Chain

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H.H.B. wire (half hard bright): technical specification
Property	Value
Base metal	Low carbon mild steel
Carbon content	0.05 to 0.20%
Condition	Cold drawn, then process annealed to half hard temper
Tensile strength	450 to 600 N/mm²
Elongation	8 to 15%
Diameter range	0.50 to 6.00 mm
Diameter tolerance	± 0.03 mm to ± 0.08 mm by size
Finish	Bright
Cold heading	Suitable, upsets without head cracking
Coil weight	On request
Applicable standard	IS 280 : 2006

Prime Wires soft annealed mild steel wire coil

03 · Soft, fully annealed

Annealed wire

Annealed wire is mild steel wire that is heat treated after drawing to make it soft. It bends, twists and folds without cracking, and runs smoothly on high speed machines without breaking.

Stitching wire feedstock Chain manufacturing G.I. wire base Tying & binding Baling wire

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Annealed wire: technical specification
Property	Value
Base metal	Low carbon mild steel
Carbon content	0.05 to 0.20%
Condition	Soft annealed after drawing
Finish	Black annealed / bright annealed
Tensile strength	320 to 450 N/mm²
Elongation	15 to 25%
Diameter range	0.50 to 6.00 mm
Wrapping test	8 close turns on its own diameter without fracture
Coil weight	On request
Applicable standard	IS 280 : 2006

Where a row lists options, please tell us which one you need when you enquire.

04 · Soft wire for tying

Binding wire

Binding wire is soft annealed mild steel wire used to tie rebar on building sites and for general bundling. We keep the size within close limits, because thin wire snaps when twisted and thick wire wastes metal on every tie.

RCC rebar tying Construction reinforcement Bundling Fabrication

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Binding wire: technical specification
Property	Value
Base metal	Low carbon mild steel, Class I preferred for tying
Condition	Soft annealed
Finish	Black annealed or galvanised
Common sizes	16 SWG (1.63 mm), 18 SWG (1.22 mm), 20 SWG (0.91 mm)
Tensile strength	300 to 450 N/mm²
Elongation	15% minimum
Diameter tolerance	± 0.03 mm to ± 0.05 mm by size
Packing	Coils and bundles, 15 to 50 kg
Applicable standard	IS 280 : 2006

05 · For baling

Baling wire

Baling wire, also called bale wire, farm wire or soft wire, is annealed mild steel wire used to tie bales of cardboard, paper, textiles, aluminium and other material for recycling. It has even tensile strength and elongation, so it ties a strong knot with very little stretch.

Corrugated cardboard Waste paper Textiles Aluminium & scrap Agricultural bundling Industrial packaging

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Baling wire: technical specification
Property	Value
Base metal	Low carbon mild steel
Condition	Soft annealed for hand baling; hard drawn for automatic balers
Diameter range	2.00 to 4.06 mm (14 to 8 SWG)
Tensile strength	350 to 550 N/mm² annealed
Elongation	12% minimum
Finish	Black annealed or galvanised
Formats	Coil, or single loop bale ties cut to length
Coil weight	On request
Applicable standard	IS 280 : 2006

Group 2

High carbon and G.I. wires

High carbon wire for springs and ropes, and zinc coated G.I. wire for outdoor use.

Prime Wires patented and cold drawn high carbon spring steel wire coil

06 · Spring steel wire

High carbon wire

High carbon wire, also called spring steel wire, is made from steel with 0.36% to 0.90% carbon, compared with 0.05% to 0.20% in mild steel. It is patented (heat treated) and cold drawn to high strength, so it springs back to shape under load instead of staying bent.

Springs Wire ropes Wire netting Hair pins Imitation jewellery Packing items Nails and pins

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High carbon wire: technical specification
Property	Value
Base metal	Unalloyed high carbon steel
Carbon content	0.36 to 0.90%, by grade
Condition	Patented and cold drawn
Grades	1, 2 and 3, or to your specification
Tensile strength	1,100 to 2,200 N/mm², falling as diameter rises
Diameter range	0.20 to 5.00 mm
Finish	Patented, hard drawn, phosphate coated, oiled or clean surface
Coating	Ungalvanised or galvanised
Zinc coating	0.40 to 150 g/m² (galvanised wire)
Torsion and wrap test	Per IS 4454 (Part 1)
Coil weight	To your specification
Applicable standard	IS 4454 (Part 1) : 2001; rod to JIS G 3506 / SWRH grades
Test certificate	Mill test certificate on request

Prime Wires galvanised (G.I.) mild steel wire coil

07 · Zinc coated

G.I. wire

G.I. wire is mild steel wire with a zinc coating. The zinc protects the steel from rust, even where the coating gets scratched, which is why galvanised wire lasts outdoors and plain wire does not.

Fencing Wire mesh and netting Wire ropes Cables and cable armouring Stitching and binding wire Imitation jewellery Construction Electricals

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G.I. wire: technical specification
Property	Value
Base metal	Low carbon mild steel
Coating process	Hot dip or electro galvanised (both available)
Coating class	Light, medium or heavy
Coating weight (hot dip)	Light 40 to 120 g/m²; medium 75 to 150 g/m²; heavy 150 to 275 g/m², by diameter
Coating weight (electro)	8 to 40 g/m²
Diameter range	0.26 to 3.00 mm
Tensile strength	350 to 550 N/mm² annealed; 550 to 900 N/mm² hard drawn
Coating adhesion	Mandrel wrap, no flaking or cracking
Coating uniformity	Preece dip test
Finish	Bright silver
Coil weight	On request
Applicable standards	IS 280 : 2006 (base wire) + IS 4826 : 1979 (zinc coating)

Where a row lists options, please tell us which one you need when you enquire.

Standards

Standards we follow

IS 280 : 2006

Mild steel wire for general engineering purposes. Covers chemistry, diameter tolerance, tensile and the wrapping test for H.B., H.H.B., annealed, binding and baling wire, and for the base wire under G.I.

IS 4826 : 1979

Hot dipped galvanized coatings on round steel wires. Sets minimum coating mass by diameter for light, medium and heavy classes, plus adhesion and uniformity testing.

IS 4454 (Part 1) : 2001

Steel wire for mechanical springs, patented and cold drawn, unalloyed. Sets the SL / SM / SH and DM / DH grades and their tensile bands by diameter.

Also made

Other wires we make

We also make the wires below. Ask us for full details.

Rope wire

High carbon wire for making wire ropes, 0.20 to 2.50 mm, galvanised or ungalvanised, in all grades to your specification.

Spring steel wire

Another name for our high carbon wire, 0.20 to 5.00 mm.

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Also made

Hair pin wire

High carbon wire for making hair pins, made to your needs for minimum wastage and maximum output.

Product range

Wire products

Wire nails, wire ropes and springs.

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