P355N steel plate

Sep 18, 2025 Leave a message

P355N Pressure Vessel Steel plate is a normalized, weldable fine grain steels for pressure purposed. P355N Pressure Vessel Steel plate mean the room temperature.The equal material of P355N steel is: DIN 17102 StE355, UNI7382 FeE355KG, UNE36081 AE355KG, BS1501 223Gr. 490.

 

P355N steel plate is used in oil, chemical, power plants, boilers and other industries, for the production reactor, heat exchangers, separators, spherical tanks, oil and gas cylinders, liquefied petroleum gas tanks, nuclear reactor pressure shell, boiler drum, liquefied petroleum gas cylinders and so on.

 

P355N Pressure Vessel Steel plate Specification
Thickness:6mm-350mm
Width:1500mm-4200mm
Length:3000mm-18000mm

 

P355N Chemical Composition

Grade

The Element Max (%)

C

Si

Mn

P

S

Al(min)

N

P355N

0.20

0.50

0.9-1.70

0.03

0.025

 

0.02

Cr

Cu

Mo

Nb

Ni

Ti

V

0.30

0.30

0.08

0.005

0.50

0.03

0.10

Carbon Equivalent: Ceq = 【C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15】%

 

 

Grade

 

P355N Mechanical Property

Thickness

Yield

Tensilmie

Elongation

Impact Energy(KV J) min

P355N

mm

Min Mpa

Mpa

Min %

-20°

+20°

≤ 16

355

490-630

22

40

47

55

16> to ≤35

355

490-630

22

40

47

55

35> to ≤50

345

490-630

22

40

47

55

50> to ≤70

325

490-630

22

40

47

55

70> to ≤100

315

470-610

21

40

47

55

100> to ≤150

295

450-590

21

40

47

55

 

 

Equivalent steel grade of P355N

Europe

Belgium

Germany

France

Italy

Sweden

India

Japan

Fe E355

D52-1,2

A St52

A52CP

Fe510-1-KW

SS 21,06,01

Grade 1

SPV 355