How to Specify Titanium Coil: Width, ID, OD and Coil Weight
A titanium coil inquiry should define thickness, width, inside diameter, outside diameter or maximum coil size, unit weight, edge condition, surface and tolerance. Grade and thickness alone do not describe how the coil will run through slitting, forming or stamping equipment.
Coil Geometry
| Parameter | Buyer definition | Processing effect |
|---|---|---|
| Thickness | Nominal and tolerance | Controls forming, stiffness and finished part |
| Width | Mill or slit width and tolerance | Controls tool fit and edge trim |
| Inside diameter | Coil ID and core requirement | Must fit payoff equipment |
| Outside diameter | Maximum OD where restricted | Controls handling and equipment clearance |
| Coil weight | Target or maximum unit weight | Controls lifting, line capacity and splice frequency |
Edge and Surface
State mill edge, slit edge, deburred edge or another approved condition. Define pickled, descaled, bright, cleaned or order-specific surface and identify which side is critical. If scratches, pits, waviness or oil are restricted, use measurable acceptance criteria or approved samples.
Flatness, Camber and Coil Set
Precision strip applications may require tighter camber, flatness, crown or coil-set control than a general material specification provides. Tell the supplier how the strip will be fed and formed, and state inspection length and measurement method.
RFQ Checklist
- Grade, specification and revision
- Thickness and width with tolerances
- Coil ID, maximum OD and unit weight
- Edge, surface and critical side
- Camber, flatness or coil-set requirement
- Quantity, inspection, MTC and packing orientation
Define the Coil for Your Processing Line
See Titanium Coil, Grade 2 Titanium Coil and Precision Titanium Strip.
FAQ
Is maximum coil weight enough without ID?
No. ID and allowable OD must also match the payoff, mandrel, lifting and storage equipment.
Are titanium coil finishes the same as stainless-steel numbered finishes?
No. State the actual titanium surface condition and measurable acceptance criteria instead of assuming stainless-steel finish terminology applies.