Q275B Welded Sqaure Hollow Section

Xinsteel keeps all kinds of stock welded high strength tensile Q275B square hollow tubes,square hollow sections and square hollow pipes.Square 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.

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.
 

►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