Plate girder fabrication — welded plate girders for bridges and heavy spans
Plate girder fabrication is the shop assembly of welded I-girders and box sections from IS 2062 plate — web plates, flanges, stiffeners, and connection plates cut, fit, and welded to the structural engineer’s approved shop drawings. Sun Corporation fabricates plate girders at our Jeedimetla workshop for road-over-bridge approaches, industrial access spans, crane runway segments, and pipe bridge longitudinals, with WPS/PQR documentation and NDT per the project ITP.
Shop capabilities
| Process | Application |
|---|---|
| CNC plasma cutting | Web and flange plates to net size |
| Submerged arc welding (SAW) | Longitudinal and flange-to-web fillet/butt welds |
| FCAW / SMAW | Stiffeners, diaphragms, splice plates |
| Plate thickness | 16 mm to 100 mm carbon steel (see heavy fabrication page) |
| NDT | UT on full-penetration welds; MPI on critical details |
| Pre-heat | Controlled preheat on thick plate per WPS |
Codes and sectors
Industrial and infrastructure girders are fabricated to IS 800:2007. Railway and highway ROB packages follow the project’s referenced code (IRS, IRC, or bridge design standard) as shown on the design drawings. We do not provide independent statutory structural design — we fabricate and erect to the approved design with full material and weld traceability.
For thick plate and large assemblies beyond standard building sections, see heavy steel fabrication.
Related fabricated products
Workshop credentials and enquiry
Plate and built-up fabrication at Jeedimetla, Hyderabad — IS 2062 plate and sections, IS 800:2007, WPS/PQR to IS 9595, in-house UT/MPI. Manufacturer credentials · Structural steel fabrication · Heavy steel fabrication
RFQ: Send IFC drawings or enquiry GA to Contact Sun Corporation. Response within 24 hours; quotation within 48–72 hours when drawings are available.