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■ Overview
Hollow sections mild steel Q235B under chinese standard GB/T34201,the tubes's packages,marking and Qulity certificate format shall be according to standard GB/T 2102.Hollow sections have a wide and diverse application in iconic structures such as the London Eye,Emirates Stadium and space frame structure of the world record-breaking JCB Dieselmax.
■ 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 Q235B Carbon steel tube:
|
Thickness (mm) |
|||
|
Q235B |
≤ 16 |
> 16 ≤ 40 |
> 40 |
|
Yield strength (≥Mpa) |
235 |
225 |
215 |
|
Tensile strength (Mpa) |
370-500 |
||
►Chemical composition for Q235B Carbon steel tube (Heat Analysis Max%)
|
Main chemical elements composition of Q235B |
||||
|
C |
Si |
Mn |
P |
S |
|
0.20 |
0.35 |
1.40 |
0.045 |
0.045 |
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