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  • S235JRh square hollow section
  • S235JRh sections

Q345A Seamless Sqaure Hollow Section

  • Steel Standard: GB/T 3094 GB/T1591
  • Rolling Type: Cold Formed SHS,Cold forming finished SHS
  • Sizes: 2*40*40MM--20*400*400MM
  • Length: 1000mm-12000mm
  • Similar Product Name: Cold formed square hollow sections,Cold formed square pipes
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■ Overview
Xinsteel keeps all kinds of stock hot formed and cold formed square tubes Q345A,square hollow sections Q345A and seamless square pipes Q345A.The manufacturing processes of hot finished and cold formed hollow sections are very different.Hot finished hollow sections are formed at normalising temperature (approx 900°C).Cold formed hollow sections are formed at ambient temperature.
■ 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.
 
■ Techicals

►Mechnical property for Q345A low alloy structural steel hollow section:

Q345A

 

Yield strength (≥Mpa)

345

Tensile strength (Mpa)

470-630


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

Main chemical elements composition of Q345A

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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