Q235A Seamless Sqaure Hollow Section

Mild steel Seamless Square hollow sections Q235A in GB/T 3094 owned minimum yield strength at 235Mpa,and tensile strength within 370-500Mpa.These square hollow sections in standard GB/T3094 mainly used in all types of buildings,highway guardrails and signage,support columns,trusses,bridges,heavy equipment,storage systems and exercise equipments.

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 Q235A Carbon steel square hollow section:

Thickness (mm)
Q235A
Yield strength (≥Mpa)	235
Tensile strength (Mpa)	370-500

►Chemical composition for Q235A Carbon steel square hollow section (Heat Analysis Max%)

Main chemical elements composition of Q235A
C	Si	Mn	P	S
0.22	0.35	1.40	0.045	0.050