PT400N - ISO 9328-3-2018

Grade	PT400N
Corresponding Standard	ISO 9328-3-2018 Weldable Fine Grain Steels, Normalized
Classification	Alloy Steel

PT400N Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu	Mo	Ti	V	Nb	B	Al	More
Minimum Value	-	-	-	-	-	-	-	-	-	-	-	-	-	-	Cr+C+Mo+Ni≤1.00
Maximum Value	0.18	0.4	1.4	0.02	0.02	0.3	0.5	0.4	0.12	0.03	0.05	0.05	0.001	0.02	Cr+C+Mo+Ni≤1.00

① On cast analysis, the aluminium content shall be not less than 0.02% total aluminium or, alternatively, 0.0150% acid-soluble aluminium
By agreement at the time of enquiry and order, the (total or soluble) aluminium content may fall short of this minimum if niobium, titanium or vanadium are additionally used for nitrogen binding.
② Other maximum contents for Cr, Cu, Mo, Nb, Ni, Ti and V may be agreed upon at the time of enquiry and order.

PT400N Mechanical Properties

thickness t mm	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %
6≤t≤50	Normalizing (+N)	400~540	≥235	≥21
50＜t≤100	Normalizing (+N)	400~540	≥215	≥21
100＜t≤150	Normalizing (+N)	400~540	≥195	≥21

Approximate Comparison Table Pressure-Bearing Flat Steel

Japan	United States	International Organization for Standardization
JIS	ASTM	ISO
SPV235 SLA235A	A662A	PT400N PT400NH PT400NL1

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