Πρότυπο |
ASTM A606-4 |
ASTM A588 Grade A |
Τύπος |
High-strength low-alloy steel |
Weathering steel |
Αντοχή στη διάβρωση |
Good |
Excellent; resistant to atmospheric corrosion |
Αντοχή σε εφελκυσμό |
Min 70 ksi (485 MPa) |
Min 70 ksi (485 MPa) |
Αντοχή σε διαρροή |
Min 50 ksi (345 MPa) |
Min 50 ksi (345 MPa) |
Επιμήκυνση |
Varies by thickness |
Varies by thickness |
Thickness Range |
Typically up to 2 inches (50 mm) |
Typically up to 2 inches (50 mm) |
Formability |
Good |
Good |
Συγκολλησιμότητα |
Good with appropriate precautions |
Good with appropriate precautions |
Εφαρμογές |
Construction, bridges, structural supports |
Bridges, construction, marine applications |
Φινίρισμα επιφάνειας |
Mill finish or as specified |
Mill finish or as specified |
Χημική σύνθεση |
Varies slightly based on specific requirements |
Contains elements like copper for enhanced weathering resistance |