Q345A Galvanized Sqaure Tube

Xinsteel keeps all kinds of stock hot formed and cold formed galvanized steel square tubes Q345A,galvanized square hollow sections Q345A and seamless square pipes Q345A.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 Q345A low alloy structural steel tube:

Thickness (mm)
Q345A	≤ 16	> 16 ≤ 40	> 40
Yield strength (≥Mpa)	345	335	325
Tensile strength (Mpa)	470-630

►Chemical composition for Q345A low alloy structural steel tube (Heat Analysis Max%)

Main chemical elements composition of Q345A
C	Si	Mn	P	S	Nb	V	Ti
0.20	0.50	1.70	0.035	0.035	0.07	0.15	0.20
Cr	Ni	Cu	N	Mo	B	Al Min.
0.30	0.50	0.30	0.012	0.10	-	-