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  • S235JRh square hollow section
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Q390C Seamless Rectangular Hollow Section

  • Steel Standard: GB/T 3094 GB/T1591
  • Rolling Type: Cold Formed RHS,Cold forming finished RHS
  • Sizes: 2*20*40MM--20*400*600MM
  • Length: 1000mm-12000mm
  • Similar Product Name: Cold formed rectangular hollow sections,Cold formed rectangular pipes
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■ Overview
Rectangular hollow sections Q390C in standard GB/T 3094 is inherently strong and efficient.These sections give buildings a better strength-to-weight ratio than those using comparable steel,concreteor timber products.Rectangular hollow section Q390C shall be done low temperature impating test at zero Deg.C when rolling.
 
■ 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 Q390C low alloy structural steel hollow section:
 

Q390C

 

Yield strength (≥Mpa)

390

Tensile strength (Mpa)

490-650


►Chemical composition for Q390C low alloy structural steel hollow section (Heat Analysis Max%)
 

Main chemical elements composition of Q390C

C

Si

Mn

P

S

V

Nb

Ti

Cr

Ni

0.20

0.55

1.00-1.60

0.045

0.045

0.02-0.20

0.015-0.060

0.02-0.20

0.30

0.70


 

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