EN 10028 – P460 NH/NL1/NL2

EN 10028 – P460 NH/NL1/NL2

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 normalised 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.

Table 2: Mechanical Properties of EN 10028 – P460 NH/NL1/NL2

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

(Please note: the technical information above is for guidance only – for exact specifications please check with our Sales Team)

Table 1: 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.)