♦ Galvanized coating according to GB/T 13912
♦ Dimension tolerance according to GB/T6728
♦ Ultrasonic test under EN 10160,ASTM A435,A577,A578
♦ Issued Orginal Mill test certificate under EN 10204 FORMAT 3.1/3.2
♦ Surface Protection:Black,Varnish,Hot Dip Galvanized,Coating with shop prime.
►Mechnical property for Q275B Carbon steel hollow sections:
Thickness (mm) |
|
Q275B |
|
Yield strength (≥Mpa) |
275 |
Tensile strength (Mpa) |
410-540 |
►Chemical composition for Q275B Carbon steel hollow sections (Heat Analysis Max%)
Main chemical elements composition of Q275B |
||||
C |
Si |
Mn |
P |
S |
0.24 |
0.35 |
1.50 |
0.045 |
0.045 |