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■ Overview
Square hollow sections Q345D in standard GB/T 3094 owned minimum tensile strength at 470Mpa and yield strength at 345Mpa.Low temperature impacting test at minus 20 Deg.C shall be done for these square hollow sections Q345D.
■ Full Data
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.
♦ 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.
■ Techicals
►Mechnical property for Q345D low alloy structural steel hollow section:
|
Q345D |
|
|
Yield strength (≥Mpa) |
345 |
|
Tensile strength (Mpa) |
470-630 |
►Chemical composition for Q345D low alloy structural steel hollow section (Heat Analysis Max%)
|
Main chemical elements composition of Q345D |
|||||||
|
C |
Si |
Mn |
P |
S |
V |
Nb |
Ti |
|
0.20 |
0.55 |
1.00-1.60 |
0.045 |
0.045 |
0.02-0.15 |
0.015-0.060 |
0.02-0.20 |
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