+86 371 55057610 
inquiry@xsteelplate.com
■ Overview
Xinsteel keeps all kinds of stock hot formed and cold formed high strength tensile Q275B rectangular hollow tubes,welded rectangular hollow sections and rectangular hollow pipes.rectangular hollow sections is inherently strong and efficient.These sections give buildings a better strength-to-weight ratio than those using comparable steel,
concreteor timber products.
■ Full Data
Technical Requirements & Additional Services:
♦ 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.
♦ 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.
■ Techicals
►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 |
Tel：+86 371 55057610 
Fax： +86 371 5505 7611