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■ Overview
Mild steel welded Square hollow sections Q235A in GB/T 3091 and GB/T3092 owned minimum yield strength at 235Mpa,and tensile strength within 370-500Mpa.These square hollow sections in standard GB/T3091 mainly used in all types of buildings,highway guardrails and signage,support columns,trusses,bridges,heavy equipment,storage systems and exercise equipments.
■ 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 Q235A Carbon steel square hollow section:
|
Thickness (mm) |
|
|
Q235A |
|
|
Yield strength (≥Mpa) |
235 |
|
Tensile strength (Mpa) |
370-500 |
►Chemical composition for Q235A Carbon steel square hollow section (Heat Analysis Max%)
|
Main chemical elements composition of Q235A |
||||
|
C |
Si |
Mn |
P |
S |
|
0.22 |
0.35 |
1.40 |
0.045 |
0.050 |
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