+86 371 55057610 
inquiry@xsteelplate.com
■ Overview
Galvanized Rectangular Tubes Q345D in standard GB/T 34201 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 rectangular hollow sections Q345D.We guarantee the zinc coating layer to customers.
■ 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 tube:
|
Thickness (mm) |
|||
|
Q345D |
≤ 16 |
> 16 ≤ 40 |
> 40 |
|
Yield strength (≥Mpa) |
345 |
335 |
325 |
|
Tensile strength (Mpa) |
470-630 |
||
►Chemical composition for Q345D low alloy structural steel tube (Heat Analysis Max%)
|
Main chemical elements composition of Q345D |
|||||||
|
C |
Si |
Mn |
P |
S |
Nb |
V |
Ti |
|
0.18 |
0.50 |
1.70 |
0.030 |
0.025 |
0.07 |
0.15 |
0.20 |
|
Cr |
Ni |
Cu |
N |
Mo |
B |
Al Min. |
|
|
0.30 |
0.50 |
0.30 |
0.012 |
0.10 |
- |
0.015 |
|
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