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P355NL1 steel vs P460NL1 steel

Both P355NL1 steel and P460NL1 steel are low temperature quality steel for pressure vessels. However, P355NL1 steel is non-alloy quality steel, but P460NL1 steel is alloy special steel. Do you know the differences between P355NL1 steel and P460NL1 plate? Below is a brief introduction of their comparison.
P355NL1 steel and P460NL1 steel in chemical composition(cast analysis, %)
Grades C max Si max Mn P max S max Al(min) N max Cr max Cu max Mo max Nb max Ni max Ti max V max Nb+Ti+ V max
P355NL1 0.18 0.50 1.10-1.70 0.025 0.010 0.020 0.012 0.30 0.30 0.08 0.05 0.50 0.03 0.10 0.12
P460NL1 0.20 0.60 1.10-1.70 0.025 0.010 0.020 0.025 0.30 0.70 0.10 0.05 0.80 0.03 0.20 0.22
 

P355NL1 steel and P460NL1 steel's mechanical properties:

Grade Thickness mm Yield strength ReH MPa min. Tensile strength MPa Elongation % min.
P355NL1 ≤16 355 490~630 22
16<t≤40 345 490~630 22
40<t≤60 335 490~630 22
60<t≤100 315 470~610 21
100<t≤150 305 460~600 21
150<t≤250 295 450~590 21
P460NL1 ≤16 460 570~730 17
16<t≤40 445 570~720 17
40<t≤60 430 570~720 17
60<t≤100 400 540~710 -
100<t≤250 - - -
P355NL1 pressure vessel plate is delivered in normalized condition. IF you are interested in P355NL1 plates, P460NL1 sheet price, welcome to contact us.
 
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