P460NH Pressure Vessel Steel Plate

P460NH, so called for having a minimum yield strength of 460 MPa, is is a high quality pressure vessel steel grade for use in boiler and pressure vessel fabrication. It is a normalized fine grain steel with good weldability characteristics.

Other grade types include…
NL1 – is ideal for use in low temperatures
NL2 – is ideal for use in especially low temperatures

P460NH is also used in sour gas applications where the steel will be HIC Tested to gauge the materials susceptibility to hydrogen induced cracking.

EN 10028-3 P460NH Plates Specification :
Thickness : 6mm to 300mm
Width : 1500mm to 4050mm
Length : 3000mm to 15000mm
Grade : EN 10028 P460NH P460NL1 P460NL2
Steel Number : 1.8935

Mechanical Properties of EN 10028 – P460 NH/NL1/NL2

Grade	Type	Thickness (mm)	Yield Strength MPa (min)	Tensile Strength MPa	Elongation % (min)
P460 NH P460 NL1 P460 NL2	Normalized	≤ 16	460	570 - 750	17
		16> to ≤40	445	570 - 720	17
		40> to ≤60	430	570 - 720	17
		60> to ≤100	400	540 - 710	17
		100> to ≤150	-	-	17

Chemical Composition of EN 10028 – P460 NH/NL1/NL2

	P460 NH	P460 NL1	P460 NL2
C	0.20	0.20	0.20
Si	0.60	0.60	0.60
Mn	1.10 to 1.70	1.10 to 1.70	1.10 to 1.70
P	0.025	0.025	0.020
S	0.015	0.015	0.010
Al	0.020	0.020	0.020
N	0.025	0.025	0.025
Cr	0.30	0.30	0.30
Cu	0.70	0.70	0.70
Mo	0.10	0.10	0.10
Nb	0.05	0.05	0.05
Ni	0.80	0.80	0.80
Ti	0.03	0.03	0.03
V	0.20	0.20	0.20

(The combined quantities of Niobium, Titanium and Vanadium should be 0.22% max.)