+86 371 55057610 
inquiry@xsteelplate.com
■ Overview
Xinsteel stockholder varies diameters seamless steel pipes and tubes in JIS G3444 for structural using grade as STK290 seamless steel pipes,STK400 seamless steel tubes,STK490 welded steel pipes.Steel pipes 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 JIS G3302
♦ Dimension tolerance according to JIS G0321,JIS G3444
♦ Steel materials tension test comply to JIS Z2241
♦ Issued Orginal Mill test certificate under 3.1/3.2 FORMAT
♦ Surface Protection:Black,Varnish,Hot Dip Galvanized,Coating with shop prime
♦ Galvanized coating according to JIS G3302
♦ Dimension tolerance according to JIS G0321,JIS G3444
♦ Steel materials tension test comply to JIS Z2241
♦ Issued Orginal Mill test certificate under 3.1/3.2 FORMAT
♦ Surface Protection:Black,Varnish,Hot Dip Galvanized,Coating with shop prime
■ Techicals
►Mechnical property forSTK490 structural steel tube:
|
STK490 |
|
|
Yield strength (≥Mpa) |
235 |
|
Tensile strength (≥Mpa) |
400 |
►Chemical composition for STK490 structural steel tube (Heat Analysis Max%)
|
Main chemical elements composition of STK490 |
||||
|
C |
Si |
Mn |
P |
S |
|
0.18 |
0.55 |
1.65 |
0.035 |
0.035 |
Tel：+86 371 55057610 
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