Grey Cast Iron
Good vibration damping, heat conduction and machinability. Commonly used for housings, bases, pulleys and brake parts.
FG 200FG 250FG 260FG 300
- Tensile strength
- 200–300 MPa
- Best for
- Damping & wear
Iron foundry · Delhi NCR
Grey & SG iron castings.
We cast parts from 0.5 to 200 kg to your drawing and grade, then machine and powder coat them in the same plant.
- Annual capacity
- 5,000MT/YRAnnual casting capacity
- Melting
- 2×500KGInductotherm double-crucible melting
- Weight range
- 0.5–200KGSingle-piece casting weight
- Certification
- ISO9001Certified quality management
IN-HOUSE Casting, machining and coating
01 Who we are
From pattern to paint in one plant.
Ferro Tech Alloys is an iron foundry in Delhi NCR built for buyers who want fewer suppliers and tighter control. Pattern design, core making, melting, moulding, metallurgical testing, CNC machining and powder coating all happen in our own plant.
- Grey iron to IS 210 and SG iron to IS 1865, with chemistry checked by spectrometer before every pour
- High-pressure moulding for dimensional consistency across long production runs
- Supplied as-cast, machined, or machined and powder coated
02 Process
How a casting moves through our plant
Every stage from pattern to packed part sits inside our gate, so lead times are shorter and quality is traceable from the heat number to the finished component.
- 01
Pattern & methoding
In-house design team builds patterns, gating and feeding for every new part.
- 02
Core making
Cold box and hot shell shooters for accurate, repeatable internal geometry.
- 03
Sand preparation
Automated sand plant with 500 kg and 1,000 kg mullers, cooler and reclamation.
- 04
Induction melting
Inductotherm double-crucible furnace, 2 × 500 kg, for continuous pouring.
- 05
Moulding & pouring
High-pressure moulding line plus APRA 300 line for flexible batch sizes.
- 06
Knock-out & shot blast
Complete knock-out setup, hanger-type and tumbler-type shot blasting.
- 07
Fettling
Grinding and dressing to drawing, ready for inspection or machining.
- 08
CNC machining
4 CNC lathes, 2 VMCs, 6 SPMs and drilling machines for finished parts.
- 09
Powder coating
Automated powder coating plant for corrosion protection and finish.
- 10
Inspect & dispatch
Spectro, micro, hardness and dimensional checks before every dispatch.
03 Materials
Grey iron and SG iron
Grey iron damps vibration, wears well and machines easily. SG iron is stronger and more ductile, and often replaces steel parts at lower cost.
SG / Ductile Iron
Nodular graphite gives high tensile strength, elongation and impact resistance, so SG iron can replace fabrications and forgings in load-bearing parts.
SG 400/15SG 450/10SG 500/7SG 600/3
- Tensile strength
- 400–600 MPa
- Elongation
- 3–15 %
04 Infrastructure
Plant and equipment
Induction melting, high-pressure moulding, a sand and metallurgy lab and a machine shop, sized for anything from pilot lots to thousands of pieces a month.
2 × 500KG
Inductotherm double-crucible induction furnace
One crucible melts while the other pours, so the moulding line gets a steady supply of metal at controlled temperature and chemistry.
MouldingHigh Pressure Moulding Line + APRA 300
650 × 750 mm HPML boxes and 550 × 600 mm APRA boxes. Both lines make rigid, accurate moulds at production speed.
Core shopCold box & hot shell core shooters
Precise, high-strength cores for complex internal passages and thin sections.
Sand plantAutomated sand plant with reclamation
500 kg + 1,000 kg mullers, sand cooler, sieving and knock-out.
Spectro, micro, hardness, CE & full sand lab
4 CNC · 2 VMC · 6 SPM · powder coating
05 Industries
Industries we supply
We make castings for OEMs and tier suppliers in three sectors.
Insulators & Power Sector
SG iron caps, fittings and hardware for transmission and distribution insulators, made to tight dimensional and mechanical requirements.
- Insulator caps
- Line hardware
- Clamps & fittings
Automotive & Tractor
Grey and SG iron components for tractors, commercial vehicles and off-highway equipment. We can supply them machined and coated.
- Housings
- Brackets
- Hubs & drums
- Covers
Bearings & Power Transmission
Pillow block and plummer block housings, flanges and take-ups, machined on a dedicated SPM line so housings stay interchangeable at high volume.
- Pillow blocks
- Plummer blocks
- Flange units
- Pulleys
Our own brand
HBT Pillow Block Bearings.
We cast, machine and coat our own pillow block housings and sell complete bearing units under the HBT brand.
ISO 9001 certifiedDocumented, audited quality system
Every heat verifiedSpectro + CE analysis before pouring
Micro image analysisNodularity & nodule count for SG iron
Built for repeat ordersHPML moulding for consistent dimensions