35 35# RECTANGULAR HOLLOW SECTION

Chinese national big steel mills rolling 35# rectangular hollow sections,35# seamless steel rectangular tubes,35# seamless steel rectangular pipes,35# rectangular tubes,35# rectangular pipes,35# welded rectangular pipes.Xinsteel stockholder thousands tons different sizes of hot rolled and cold formed rectangular hollow tubes and pipes in chinese specifications.

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.
 

►Mechnical property for 35 structural hollow section:
 

35#
Yield strength (≥Mpa)	305
Tensile strength (≥Mpa)	510

►Chemical composition for 35 structural steel tube (Heat Analysis Max%)

Main chemical elements composition of 35#
C	Si	Mn	P	S	Cr	Ni	Cu
0.32-0.39	0.17-0.37	0.50-0.80	0.035	0.035	0.25	0.30	0.25