| Project | Allowable Deviation | Graphic | 
|       The wing is bent F |   B≤400 |   ≤1. 5 |   | 
|   B>400 |   ≤2. 5 | 
|       End face slope E and E’ |   E | H≤200 | ≤3. 0 |  | 
| H>200 | ≤1. 6%H | 
|   E’ | B≤200 | ≤3. 0 | 
| B>200 | ≤1. 6%B | 
|   Cylindrical passivation of wing end | The diameter should not be equal 0. 18t2 bar passed |  | 
| Note 1: The size and shape deviation classification is based on the nominal size of the section. Note 2: The bend is measured along the end of the flange. Note 3: “D” is the diameter of the round rod. | 
 
Applications of H-Beam Steel 
- Building & Construction
Skyscrapers – Core columns (HW), transfer beams (HM/HN).
Factories & Warehouses – Roof frames, crane rails (Q355B+).
Stadiums & Malls – Long-span structures.
 
- Bridges & Infrastructure
Highway/Railway Bridges – Main girders (HN), piers (HW).
Pedestrian Bridges – Lightweight & durable designs.
 
- Energy Projects
Power Plants – Boiler supports (Q420B+).
Wind Turbines – Tower internals (Q355D/Q460D).
 
- Transportation
Subway Tunnels – Temporary bracing.
Port Cranes – Heavy-duty runway beams.
 
- Machinery & Equipment
Crane Arms – High-strength steel (Q690).
Shipbuilding – Hull reinforcements.
 
- Temporary Structures
Prefab Shelters – Fast assembly.
Greenhouses – Lightweight frames.