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■ Overview
High strength tensile materials stk490 steel pipe,stk50 steel tube,stk490 seamless pipe equal to ASTM specification A500 Grade B steel pipe.Tensile strength for stk490 steel pipe shall above 490 Mpa and yield strength above 315 Mpa.In specification JIS G3444,high strength steel grades also includes STK500 steel pipe and STK540 steel pipe.
■ Full Data
Technical Requirements & Additional Services for STK490 Steel Pipe:
♦ Standard test method for heat analysis according to JIS G0320
♦ General technical delivery requirements for steel and steel products under JIS G0404
♦ Steel pipes shall be furnished with plane ends or bevel end finishing if required
♦ Flattening test,Bend test,Hardness test result appear on original mill certificate
♦ Surface Protection:Black,Varnish,Hot Dip Galvanized,Coating with shop prime.
♦ Standard test method for heat analysis according to JIS G0320
♦ General technical delivery requirements for steel and steel products under JIS G0404
♦ Steel pipes shall be furnished with plane ends or bevel end finishing if required
♦ Flattening test,Bend test,Hardness test result appear on original mill certificate
♦ Surface Protection:Black,Varnish,Hot Dip Galvanized,Coating with shop prime.
■ Techicals
►Mechnical property for STK490 Steel pipe:
|
Grade |
Yield strength (≥Mpa) |
Tensile strength (≥Mpa) |
|
STK490 |
315 |
490 |
►Chemical composition for STK490 Steel pipe (Heat Analysis Max%)
|
Main chemical elements composition of STK490 |
||||
|
C |
Si |
Mn |
P |
S |
|
0.18 |
0.55 |
1.65 |
0.035 |
0.035 |
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