Cored Wires

A cored wire is cold-rolled low-carbon steel strip closed into a tube around a powder or metal core. A wire feeder drives it at a controlled speed deep into the ladle, so the addition dissolves below the slag. The result is higher recovery, precise and repeatable dosing, and protection of reactive elements from air and slag.

Ca-Fe · Key product

Ca-Fe Cored Wire

For deoxidation, desulphurisation and inclusion modification in steel production.

≥ 30 %

≤ 70 %

Desulphurisation: lowers sulphur in the melt
Deoxidation: calcium reacts with dissolved oxygen
Improves steel quality and machinability
Turns solid alumina inclusions into liquid calcium aluminates, reducing nozzle clogging at the caster

Standard coil specification

	Value	Tolerance
Calcium (Ca)	≥ 30 %	Ca purity ≥ 98 %
Iron (Fe)	≤ 70 %
Wire diameter	13 mm	± 0.2 mm
Calcium per metre	275 g/m	± 10 g/m
Core weight per coil	1275 kg	± 100 kg
Steel strip per coil	790 kg	± 50 kg
Total coil weight	2050 kg	± 100 kg
Coil inner diameter	600 mm
Coil outer diameter	1200 mm	± 50 mm
Coil height	1350 mm	± 50 mm
Strip thickness	0.4 mm	± 0.05 mm
Strip steel	Cold rolled, DIN EN 10130 grade DC01
Shelf life	1 year from production, in original packing and dry storage

Standard dimensions and weights are shown; other sizes can be produced to suit customer demand or loading conditions.

CaSi · Key product

CaSi Cored Wire

Filler wire with a calcium (Ca) and silicon (Si) core, for deoxidation of liquid steel.

30 %

60 %

Deoxidation of liquid steel in the ladle
Calcium treatment and inclusion shape control
Adds calcium and silicon together, for steels where silicon pick-up is acceptable

Standard coil specification

	Value	Tolerance
Calcium (Ca)	30 %	> 30 %
Silicon (Si)	60 %	< 60 %
Wire diameter	13 mm	± 0.5 mm
CaSi powder per metre	235 g/m	± 15 g/m
Core weight per coil	1000 kg	± 100 kg
Steel strip per coil	790 kg	± 50 kg
Total coil weight	1800 kg	± 100 kg
Coil inner diameter	600 mm	± 50 mm
Coil outer diameter	1150 mm	± 50 mm
Coil height	1150 mm	± 50 mm
Strip thickness	0.4 mm	± 0.05 mm
Strip steel	Cold rolled, DIN EN 10130 grade DC01
Shelf life	1 year from production, in original packing and dry storage

Standard dimensions and weights are shown; other sizes can be produced to suit customer demand or loading conditions.

Full cored wire range

Besides Ca-Fe and CaSi, wires are available for composition trimming, micro-alloying and special additions in the ladle. Full data sheets are sent on request.

Wire	Core composition (mass %)	Ø (mm)	Core (g/m)	Coil (kg)	Main use
Ca-Fe	Ca ≥ 30 · Fe ≤ 70	13	275 (Ca)	2050	Ca treatment, desulphurisation, inclusion modification
CaSi	Ca 30 · Si 60	13	235	1800	Deoxidation and Ca treatment
Ca-Fe HP	Ca-Fe, purity > 98	13	280	2000	High-purity Ca treatment
Ca	Ca ≥ 98	13	140	1400	High-recovery Ca treatment
Ca solid	Ca ≥ 98 (solid metal)	10	70	2475	Ca treatment with solid metal core
Al	Al ≥ 99.5	12	—	2125	Deoxidation, Al trimming
C	C > 99 · S < 1	13	200	1650	Carbon trimming
S	S 99.5 (≥ 98)	13	200	1700	Sulphur addition (free-cutting steels)
Fe-Ti	Ti 70 (68–72)	13	380	2500	Titanium addition
Fe-B	B 18.5 (17–20)	13	550	2250	Boron addition
Fe-Nb	Nb ≥ 65	13	675	2220	Niobium micro-alloying
Fe-V	V > 77	13	430	2220	Vanadium micro-alloying
Fe-Mo	Mo ≥ 60	13	1500	2220	Molybdenum alloying
Fe-P	P 21 (19–23)	13	530	2150	Phosphorus addition
CaCN₂	CaCN₂ 58.4 ± 2 · N 19.3–21.9	13	210	1200	Nitrogen addition

Strip for all wires: cold-rolled steel DIN EN 10130 grade DC01 · coil inner diameter 600–800 mm · coil size and weight adjustable to the customer's feeder.

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