Q275A Hot Rolled Square Tube

Hot rolled High strength Seamless Square hollow sections Q275A in GB/T 34201 owned minimum yield strength at 275Mpa,and tensile strength within 410-540Mpa.Hollow sections under chinese standard GB/T34201,the tubes's packages,marking and Qulity certificate format shall be according to standard GB/T 2102.

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 Q275A Carbon steel hollow sections:

Thickness (mm)
Q275A
Yield strength (≥Mpa)	275
Tensile strength (Mpa)	410-540

►Chemical composition for Q275A Carbon steel hollow sections (Heat Analysis Max%)

Main chemical elements composition of Q275A
C	Si	Mn	P	S
0.24	0.35	1.50	0.045	0.045