PT440ML1 - ISO 9328-5-2018

Grade	PT440ML1
Corresponding Standard	ISO 9328-5-2018 Steel flat products for pressure purposes - Weldable fine grain steels, thermomechanically rolled
Classification	Alloy Steel

PT440ML1 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu	Mo	Ti	V	Nb	B	Al ^①
Minimum Value	-	-	0.7	-	-	-	-	-	-	-	-	-	-	0.02
Maximum Value	0.16	0.55	1.6	0.015	0.01	0.3	0.5	0.4	0.2	0.05	0.1	0.05	0.001	-

PT440ML1 Mechanical Properties

Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %
440~560	≥325	≥19

Approximate Comparison Table Pressure-Bearing Flat Steel

Japan	International Organization for Standardization
JIS	ISO
SLA325A	PT440ML1

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