Q235A Hot Rolled Square Tube

Hot rolled Mild steel Square hollow sections Q235A in GB/T 34201 owned minimum yield strength at 235Mpa,and tensile strength within 370-500Mpa.Xinsteel guarantee our offering stock square hollow sections,square tubes with good condition surface without heavy dusty,no cracks,no cavity,and chemical composition and mechanical property complay to relative steel standard with original mill test certificates.

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 tube:

Thickness (mm)
Q235A	≤ 16	> 16 ≤ 40	> 40
Yield strength (≥Mpa)	235	225	215
Tensile strength (Mpa)	370-500

►Chemical composition for Q235A Carbon steel tube (Heat Analysis Max%)

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