Products & services

Welded steel frames

Building frames with plate-girder columns and beams, built with submerged-arc welding and pinned or moment connections, for office, sports and healthcare buildings.

About this product line

In a welded frame, box columns or double I-section columns and I-shaped main beams are fabricated in the factory and joined on site by CO₂ and submerged-arc welding. This method suits buildings with an unusual layout or a short construction window.

Projects

Emergency building of Shirkhorshid Hospital, Abadan, 480 tonnes
Shiraz Municipality shooting hall, 300 tonnes
Imam Khomeini Relief Foundation building, Kohgiluyeh and Boyer-Ahmad, 120 tonnes

Still undecided between a welded and a bolted frame? Read the article “Advantages of bolted steel frames” or talk to our technical office.

Examples

How we work

Six steps, one responsibility

Request a quote

01
Design & estimate

Reviewing architectural and structural drawings; calculating weight, schedule and cost.
02
Shop drawings

Fabrication drawings for every member and connection, before any plate enters the shop.
03
Cutting & fabrication

Cold, hot and CNC cutting; girders and columns built with submerged-arc welding and checked to size.
04
Blasting & painting

Surface preparation and anti-corrosion coating for the hot, humid southern climate.
05
Coding & delivery

Every part coded and delivered on a schedule matched to erection progress.
06
Erection & handover

Frame erection by our own crews, final inspection and handover to the client.