ASTM A387 grade 22 class 2 steel,ASTM A387 grade 22 class 2 is a type of ASTM A387 grade 22 steel. ASTM A387 Grade 22 Class 2 As a pressure vessel grade steel for use in elevated temperature service, is used in a variety of industries and is highly effective, particularly in the oil, gas and petrochemical industry, where liquids and gases are often stored at higher temperatures.

ASTM A387 Gr 22 CL 2 is a chromium molybdenum alloy steel plate intended primarily for welded boiler and pressure vessels designed of elevated temperature service. The Cr content 2.25 % and the Mo content 1.00 %.

ASTM A387 Grade 22 Class 2 specification：
Thickness: 6MM to 300MM,
Width: 1500mm to 4050mm,
Length: 3000mm to 15000mm

ASTM A387 Gr.22 CL.2 steel Chemical Composition:

A387 Gr.22 CL.2 Chemical Composition
Grade	The Element Max (%)
	C	Si	Mn	P	S	Cr	Mo
A387 Gr.22 Cl.2	0.04-0.15	0.5	0.30-0.60	0.035	0.035	1.88-2.62	0.85-1.15

ASTM A387 Gr.22 CL.2 steel Mechanical Property:

Grade	A387 Gr.22 CL.2 Mechanical Property
	Thickness	Yield	Tensile	Elongation
A387 Gr.22 Cl.2	mm	Min Mpa	Mpa	Min  %
	t≦50	310	515-690	18
	50<t≦200	–	–	–