Carbon
A709 Steel
Structural steel for bridges
Family of structural steels for bridge construction (ASTM A709 / A709M), in different grades and strength levels. The conventional grades offer good weldability, ductility, and structural performance; it also covers higher-strength variants and grades with improved atmospheric corrosion resistance. For girders, gusset plates, diaphragms, crossbeams, decks, and supports.
Main features
Structural steel for bridges
Multiple grades available
High structural strength
Standards and equivalents
| ASTM | EN | DIN | JIS |
|---|---|---|---|
| A709 / A709M | — | — | — |
Chemical composition
| % | C | Mn | Si | P | S |
|---|---|---|---|---|---|
| Min | — | — | — | — | — |
| Max | 0.27 | 1.35 | 0.40 | 0.030 | 0.030 |
Supply condition
Hot rolledUntreatedAvailable package sizes
Plates3/16" – 4"4.76 mm – 102 mm
Flat barsCut to size—
—
Typical applications
- Bridge girders
- Structural crossbeams
- Bridge diaphragms
- Connection plates
- Metal panels
- Structural supports
- Walkways and viaducts
- Welded bridge components
- High-load road structures
Note: The information and values in this data sheet are provided for reference only and may vary depending on manufacturing, treatment and application conditions. They do not constitute guaranteed specifications, so use and interpretation of this data is the user's responsibility.
Total or partial reproduction of this document is prohibited without prior authorization.
