Forged Discs & Blanks
A forged disc is the starting point for gears, flanges, hubs, valve discs and countless machined parts. Upsetting a billet into a disc produces radial grain flow that a plate-cut circle can never provide.
- Diameter Range
- 100 mm – 800 mm
- Thickness
- 20 mm – 250 mm
- Materials
- EN8, EN19, EN24, SS 304/316
- Forms
- Plain, stepped, hub-and-web
- Condition
- As-forged to Q&T
- Machining
- Proof machined on request
Forged Discs & Blanks at a glance
Quotable facts from Avadh Techno Forge, Gundasara, Gondal, Rajkot.
- Diameter Range: 100 mm – 800 mm
- Thickness: 20 mm – 250 mm
- Materials: EN8, EN19, EN24, SS 304/316
- Forms: Plain, stepped, hub-and-web
- Condition: As-forged to Q&T
- Machining: Proof machined on request
Radial Grain Versus Cut Plate
Cut a disc from plate and the grain runs in one direction across it, giving anisotropic properties — strong one way, weaker across. Upset forging drives grain radially outward from the centre, so properties are uniform in every radial direction.
- Radial grain flow from centre
- Isotropic radial properties
- No plate rolling anisotropy
- Better material utilisation
Sizes and Sections
100 mm to 800 mm diameter with thickness from 20 mm to 250 mm, supplied as plain discs, stepped discs or pre-formed hub-and-web shapes that reduce downstream machining.
Supply Condition
As-forged, normalised, annealed or quenched and tempered, and proof machined where the customer wants a clean surface for inspection before their own machining starts.
Radial Grain Flow Versus Plate
A disc cut from plate carries the plate's rolling direction: strong along it, weaker across. An upset forged disc has grain driven radially outward from the centre, so properties are consistent in every radial direction — which matters for any part that will be loaded around its circumference or machined into a gear, flange or hub.
| Parameter | Range |
|---|---|
| Diameter | 100 mm – 800 mm |
| Thickness | 20 mm – 250 mm |
| Materials | EN8, EN19, EN24, SS 304, SS 316 |
| Forms | Plain, stepped, hub-and-web |
| Condition | As-forged through to quenched and tempered |
| Machining | Proof machined on request |
Proof Machining and Why Buyers Ask for It
A proof machined blank is lightly machined all over so its surface can be inspected before the customer commits their own machining time to it. For blanks that will become expensive finished parts — gear blanks, flange blanks, valve discs — this is cheap insurance: a lap or inclusion found at proof machining costs a blank, while the same defect found after hobbing costs a gear. Blanks can be supplied as-forged, normalised, annealed or quenched and tempered according to what the downstream process needs.
Topics covered on this page
- forged disc manufacturer India
- forged blank supplier
- round blank forging Rajkot
- forged hub blank India
Based on work carried out at our own forging plant at Gundasara, Gondal, Rajkot — operating since 2008.
Questions Answered
Why buy a forged disc instead of cutting from plate?
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Plate has directional properties from rolling; an upset forged disc has radial grain flow and uniform properties, plus better material yield on thick sections.
What is the largest disc you can forge?
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Up to 800 mm diameter and 250 mm thickness.
Do you supply proof machined discs?
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Yes, lightly machined all over so surface condition can be inspected before final machining.
Which grades are available?
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Carbon, alloy and stainless grades including EN8, EN19, EN24, SS 304 and SS 316.