SA387 Grade 11 CL 1 SA387 Grade 11 CL 2 A387 Grade 11 CL1 A387 Grade 11 CL2--YUSHENG STEEL

SA387 Grade 11 CL 1 SA387 Grade 11 CL 2 A387 Grade 11 CL1 A387 Grade 11 CL2

Source：Yusheng steel

Pressure vessel used alloy steel plate SA387 Grade 11 CL 1,SA387 Grade 11 CL 2,A387 Grade 11 CL 1 and A387 Grade 11 CL 2 are with Chromium-Molybdenum alloy elements.Pressure vessel steel plate SA387 Grade 11 CL 1 and SA387 Grade 11 CL 2 are in American standard ASME SA 387/SA 387M.Boiler steel plate A387 Grade 11 Cl 1 and A387 Grade 11 Cl 2 are according to ASTM A387/A387M.These steel materials also shall conform to steel specification A 20/A 20M.These requirements outline the testing and retesting methods and procedures,permissible variations in dimensions and weight,quality and repair of defects,marking,loading,etc.

In addition to the basic requirements of this specification for steel plate SA387 Grade 11 CL 1,SA387 Grade 11 CL 2,A387 Grade 11 CL 1 and A387 Grade 11 CL 2 ,certain supplementary requirements are available whenadditional control, testing, or examination is required to meetend use requirements. These include:1 Vacuum treatment,2 Additional or special tension testing,3 Impact testing, 4 Nondestructive examination.

Mechanical properties for SA387 Grade 11 CL 1 pressure vessel steel plate:

Yield strength (Mpa)	Tensile strength (Mpa)	Elongation ≥,% 200mm
240	415-585	19

Chemical composition of Heat analysis for SA387 Grade 11 CL 1 Alloy steel plate (Max %):

C	Si	Mn	P	S	Cr	Mo
0.05/0.17	0.50/0.80	0.40/0.65	0.035	0.035	1.00/1.50	0.45/0.60