Consistent moulds
High-pressure squeeze moulding gives uniform mould hardness and stable dimensions from the first piece to the last.
Overview
Why engineers choose grey iron
Grey iron's flake graphite gives it good vibration damping, thermal conductivity and wear resistance, and it machines more easily than most ferrous materials. That makes it the default choice for housings, bases, pulleys, covers and brake components.
Our high pressure moulding line produces rigid, accurate moulds that keep wall thickness and machining allowances consistent across long runs, so parts drop into your fixtures the same way every time.
Grades
4
FG 200 · 250 · 260 · 300
Weight
0.5–200KG
Per piece
HPML box
650×750MM
High pressure line
Capacity
5,000MT/YR
Annual
Typical applications
- Pillow block housings
- Pulleys
- Machine bases
- Gearbox housings
- Brake drums
- Covers
- Motor parts
- Counterweights
Grades
Grey iron grades we cast
| Grade | Tensile min (MPa) | Typical HB | Equivalent | Typical use |
|---|---|---|---|---|
| FG 200 | 200 | 160–220 | EN-GJL-200 | General housings, covers, bases |
| FG 250 | 250 | 180–240 | EN-GJL-250 | Pulleys, pillow blocks, gear blanks |
| FG 260 | 260 | 180–230 | ≈ EN-GJL-250 | Brake parts, machine components |
| FG 300 | 300 | 180–250 | EN-GJL-300 | High-strength, wear-resistant parts |
Typical values. Final properties depend on section thickness and the agreed specification.
Capability
Why buyers choose our grey iron
Controlled sand
Our sand lab tests GCS, permeability, moisture, clay and LOI daily, reducing sand-related defects.
Machining under the same roof
CNC, VMC and SPM machining plus powder coating, so you receive fit-ready parts.
FAQ
Frequently asked questions
Can't find your answer? Call +91 88600 73338 or email sales@ferrotechalloys.com.
Which grey iron grades do you produce?
We regularly produce FG 200, FG 260 and FG 300 to IS 210, and FG 250 equivalent to EN-GJL-250. Other grades or customer specifications can be reviewed with your drawing.
What is the difference between grey iron and SG iron?
Grey iron has flake graphite, which gives damping, wear resistance and easy machining but low ductility. SG iron has spheroidal graphite, giving much higher strength, elongation and impact resistance. Our grey vs SG iron guide explains how to choose.
What sizes can you mould?
Castings from 0.5 kg to 200 kg, on a high pressure moulding line with 650 × 750 mm boxes and an APRA 300 line with 550 × 600 mm boxes.
Can you make the pattern?
Yes. Our in-house pattern design team reviews your drawing, designs gating and feeding, and develops the pattern before sampling.
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