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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SA455 Boiler steel plate, SA455 steel plate, SA455 Pressure vessel steel plate

SA455 boiler steel plate is a kind of high strength carbon-manganese steel plate, and SA455 boiler steel plate is mainly used for welded boiler and pressure vessel buildings.

Steel Name: SA455 Boiler steel plate, SA455 steel plate, SA455 Pressure vessel steel plate

SA455 Boiler steel plate specification:

Steel Grade: SA455 Steel Standard: ASME SA455/SA455M

Thickness:6mm-450mm, Width:1200mm-4200mm, Length:3000mm-18000mm

SA455 Boiler steel plate surface treatment: Shot blasting and painting or coated.

SA455 chemical composition:

Element	Max %	Element	max %
C	0.18	Cu	0.30
Si	0.40	Mo	0.08
Mn	0.50-1.40	N	0.02
P	0.03	Nb	0.05
S	0.03	Ni	0.50
AL	0.020	Ti	0.03
Cr	0.30	V	0.05
Nb+Ti+V	0.05

SA455 mechanical properties:

Grade	Material	Thickness	Yield Strength	Tensile Strength	Elongation
Grade	Material	(mm)	MPa (min)	MPa	% (min)
SA455	1.0487	≤ 16	275
		16 > to ≤35	275
		35 > to ≤50	265
		50 > to ≤70	255	370-490	23
		70 > to ≤100	235	350-470	1)
		100 > to ≤150	225	1)	1)
		>150	390-510	24

SA455 steel impact test:

Type	Usual Dekivery Condition	Norminal Thickness (mm)	Impact Energy KV min[J] at temperature [°C]
			Longitudinal					Longitudinal
			-50	-40	-20	0	+20	-50	-40	-20	0	+20
SA455	N	5-150	-	-	40	47	55	-	-	20	27	31

SA455 Boiler steel plate main application:

ASME SA455 Boiler steel plates are used to build boilers and pressure vessels such as petroleum, chemical industry, power plants.

BEBON steel is SA455 steel supplier,we have much experience in manufacture SA455 steel, We could give the fastest delivery time on the base of our competitive price directly from our mill. if you need know steel grade feature,we can provide SA455 chemical composition and SA455 mechanical properties.