A387Gr21CL1, A387Gr.21CL.1,A387 Grade 21 Class 1 Steel Plate

A387Gr21CL1, A387Gr.21CL.1,A387 Grade 21 Class 1 Steel Plate
 
Unitedsteel Mill produce super thickness A387 Grade 21 Class 1 is a chromium molybdenum alloy steel plates intended primarily for welded boiler and pressure vessels designed of elevated temperature service. The Cr content 3% and the Mo content 1%.
 
Each grade except grade 21L,Grade 22L,Grade 91 and Grade 911 is available in two classes of tensile strength levels. Grade 91 and Grade 911 are available only as Class 2.


A387 Grade 21 Class 1 max thickness of plates is limited only by the capacity of the composition to meet specified mechanical property requirements.

A387 Grade 21 Class 1 steel Chemical requirement in Product analysis

C  %	Mn  %	P  %	S %	SI %	Cr %	Mo %
0.04-0.15	0.25-0.66	0.035	0.035	0.50	2.63-3.37	0.85-1.15
Ni %	V %	Nb %	B %	Nitrogen	AL %	Tungsten

Mechanical Property A387 Grade 21 Class 1

Mechanical Property A387 Grade 21 Class 1	A387 Grade 21 Class 1
Tensile strength, kis [MPa] Yield strength, min, kis [MPa] Elongation in under [200mm], min, % Elongation in under [50mm], min, %	415-585205 …. 18

 
If you want to inquiry from this, please contact us by email sales@unitedsteelplate.com