Case study · Bridges & metro
Stainless steel piers, pier caps and girders for the Mumbai Metro.
A dedicated line for stainless steel bridge members: piers, pier caps and girders in IRS 450 stainless, 25 to 75 mm thick, for metro and flyover bridges in Mumbai.
- Stainless steel
- 25,000+ T
- Grade
- IRS 450
- Plate
- 25 to 75 mm
- A first
- Stainless flyover girders in India
- Status
- In execution
The project
Stainless steel at this thickness and volume had not been built into Indian bridges before. It needed its own cutting, bevelling and welding line.
What we made
- Piers and pier caps
- Box girders
- Edge bevelling and milling
- Robotic welding with a plate manipulator, and SAW
How we built it
- Messer MultiTherm PRO CNC plasmaPlasma cutting and edge bevelling.
- SKDX1030 CNC end-face millingEnds milled square.
- Submerged-arc (SAW) welding lineSubmerged-arc welding of long seams.
Now growing into Allmarc AM InfraCon, our JV, with 75,000 T of stainless steel planned for flyovers over the next 3 years.
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