STK490 - JIS G 3444-2021

Grade	STK490
Corresponding Standard	JIS G 3444-2021 Carbon Steel Tubes for General Structure
Classification	Carbon Steel

STK490 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S
Minimum Value	-	-	-	-	-
Maximum Value	0.18	0.55	1.65	0.035	0.035

STK490 Mechanical Properties

outside diameter d mm	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %
40＜d≤350	≥490	≥315	long.: ≥23
d＞350	≥490	≥315	tr.: ≥18

• long.=longitudina；tr.=transverse
• or pipes with an outside diameter of 40 mm or less, the elongation values in this table do not apply. However, the test results should be recorded.
• Elongation may be specified through agreement between the parties concerned.

Note: The data is for reference only! If you have any questions, please fill out "I want to correct it"!