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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a387 grade 22 class 2 steel,a387 grade 22 class 2 steel chemical composition

a387 grade 22 class 2 steel is characterised by good weldability, it effective working temperature up to 600°C. More about a387 grade 22 class 2 steel detail, please see the following:

a387 grade 22 class 2 steel is 2.25% chromium – 1% Molybdenum, these Chromium and Molybdenum pressure vessel steel plates can effectively works very well in elevated temperatures with minimum aging of the product after thousands of hours of work.

a387 grade 22 class 2 steel specification:

Grade: a387 grade 22 class 2 Standard: ASTM

Length: 6000mm-12500mm, Thickness: 5mm -150mm, Wide: 1500mm-4500mm

a387 grade 22 class 2 steel chemical composition:

Element		Chemical Composition (%) inc. Grade & UNS No.
		Grade 22 (UNS: K21590)
Carbon:	Heat Analysis:	0.05 - 0.15
	Product Analysis:	0.04 - 0.15
Manganese:	Heat Analysis:	0.30 - 0.60
	Product Analysis:	0.25 - 0.66
Phosphorus:	Heat Analysis:	0.035
	Product Analysis:	0.035
Sulphur (max):	Heat Analysis:	0.035
	Product Analysis:	0.035
Silicon:	Heat Analysis:	0.50 max
	Product Analysis:	0.50 max
Chromium:	Heat Analysis:	2.00 - 2.50
	Product Analysis:	1.88 - 2.62
Molybdenum:	Heat Analysis:	0.90 - 1.10
	Product Analysis:	0.85 - 1.15

a387 grade 22 class 2 steel mechanical property:

Designation:	Requirement:	Grade 22
A387 Grade 22	Tensile strength, ksi [MPA]	75 to 100 [515 to 690]
	Yield strength, min, ksi [MPa]/(0.2% offset)	45 [310]
	Elongation in 8 in. [200mm], min %	...
	Elongation in 2 in. [50mm], min, %	18
	Reduction of area, min %	45 (measured on round specimen) 40 (measured on flat specimen)

a387 grade 22 class 2 steel application:

a387 grade 22 class 2 steel plate are used above all for manufacturing boilers, pressure vessels and pipes for the transportation of hot liquids. They also offer good properties at high and low temperatures. The product is always supplied in the normalised and tempered condition.

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