SA299 Gr.B Steel Plate

Executive Standard: SA299 Gr. B steel plates comply with the ASME standard, specifically ASTM A299/A299M.

2026-08-26
ASTM SA299 Gr.A and SA299 Gr.B steel plates

SA299 is a carbon-manganese-silicon steel plate designed for pressure vessels—often referred to as "gas drum steel" under US standards.

2026-08-19
SA299 Gr. A Steel Plate for Boilers and Pressu

ntroduction to SA299 Gr.A Steel Plate:
SA299 Gr.A is a steel plate grade designated for boilers and pressure vessels under American standards.

2026-08-11
What is the difference between A285 Gr. C and

A285 Gr.C and SA285 Gr.C steel plates represent the same grade, though they are governed by different standards.

2026-08-04
What material is SA283 Gr.B?

SA283 Gr.B is a low-to-medium strength carbon structural steel plate conforming to the American Society of Mechanical Engineers (ASME) standard.

2026-07-31

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P355NH steel, P355NH steel plate

P355NH steel under En10028-3 standard, EN10028 P355NH steel plate/sheet is used for boilers and Pressure Vessels steels, it is a normalized steel plate and sheet which is mainly used for building pressure vessels and boilers and pipes for hot liquid.

P355NH steel plate specification:
Thickness: 6mm to 300mm,
Width: 1500mm to 4050mm,
Length: 3000mm to 15000mm

P355NH Chemical Composition
Grade	The Element Max (%)
Grade	C	Si	Mn	P	S	Al(min)	N
P355NH	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		P355NHMechanical Property
Grade	Thickness	Yield	Tensile	Elongation	Impact Energy(KV J) min
P355NH	mm	Min Mpa	Mpa	Min %	-20°	0°	+20°
	t≤ 16	355	490-630	22	47	55	63
	16< t ≤35	355	490-630	22	47	55	63
	35< t ≤50	345	490-630	22	47	55	63
	50< t≤70	325	490-630	22	47	55	63
	70< t ≤100	315	470-610	21	47	55	63
	100< t≤150	295	450-590	21	47	55	63

P355NH steel plate application:

P355NH steel is used in petroleum, chemical industry, power station, boiler, etc, P355GH used to make the reactor, heat exchanger, separator, spherical tank, liquefied gas, nuclear reactor pressure vessel and boiler steam drum bottle steam, liquefied petroleum, hydropower station high pressure hose, spiral case and other equipment and components.

As a professional P355NH steel supplier, BEBON is specialized in supplying P355NH steel. For more information of P355NH steel plates, please contact us!