STK290 STEEL PIPE STK30 STEEL TUBE

JIS G3444 specification stk290 steel pipe,stk30 steel tube,stk290 seamless pipe used for steel towers,scaffoldings,civil engineering and structures.Under this specification,STK290 steel pipe used for supperession of landslide are limited to seamless steel pipe and welded steel pipe with outside diameter under 318.5mm.

Technical Requirements & Additional Services for STK290 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.
 

►Mechnical property for STK290 Steel pipe:

Grade	Yield strength (≥Mpa)	Tensile strength (≥Mpa)
STK290	-	290

►Chemical composition for STK290 Steel pipe (Heat Analysis Max%)

Main chemical elements composition of STK290
C	Si	Mn	P	S
-	-	-	0.050	0.050