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Alloy steel and other grade steels

SA515 Gr55
SA515 Gr60
SA515 Gr65
SA515 Gr70

Alloy Steel Plate SA387 are hot rolled normalized boiler quality medium carbon steel plate for intermediate temperatures with high tensile strength and very good weldability, thickness range from 6 mm to 100 mm is available at all open markets grades 60 and 70 are easily available at all time where as grade 55 and 65 require pre-ordering. ALLOY STEEL PLATES & Sheets, ASTM A387 Steel Plate, Alloy Steel Plate, Alloy Steel Plate SA387, ALLOY 825 PLATE Stockiest , Manufacturers, Supplier , Importer and Exporter.

the general thinning allowance considered for these plate material is 0.0 mm
if we use plates above 16 mm thickness either for rolling or dishing, normalizing is to be done at local available furnaces. This is a must when you proceed for further welding of these plates either with a simple arc welding or a sophisticated submerged arc welding.
pre heating of welding is a must if you go for an arc welding, Er 7018

some other Grades are
SA516 Gr55
SA516 Gr60
SA516 Gr65
SA516 Gr70

These are some what less tensile and quite little brittle compared to Sa 515 Grades

SA 537 Gr 60 CL1
SA 537 Gr 60 CL2
with minimum yield strength of 50,000 to 60,000 with carbon, manganese and silicon is a medium quality hot rolled boiler quality plate, heat treated

SA 285 Gr A
SA 285 Gr B
SA 285 Gr C
are hot rolled low and intermediate hot rolled carbon steel plates which are especially used in the construction of storage tanks to store oils and fluids / pressure vessel constructions

Sa 387 Gr 5 CL1 and Sa 387 Gr 5 CL2
Sa 387 Gr 9 CL1 and Sa 387 Gr 9 CL2
Sa 387 Gr 11 CL1 and Sa 387 Gr 11 CL2
Sa 387 Gr 12 CL1 and Sa 387 Gr 12 CL2
Sa 387 Gr 22 CL1 and Sa 387 Gr 22 CL2
Sa 387 Gr 91 CL1 and Sa 387 Gr 91 CL2
It is a chromium molybdenum alloyed steel plate mainly used for elevated temperature applications

SA 203 Gr A
SA 203 Gr B
SA 203 Gr C
SA 203 Gr D
SA 203 Gr E
SA 203 Gr F
Nickel based alloy steel plates especially used for low temperature applications below - 150 deg F. Mainly used in cryogenic construction of space ships

SA 204 Gr A
SA 204 Gr B
SA 204 Gr C
Medium to semi high temperature applications, main alloying element being Molybdenum

SA 302 Gr B
SA 302 Gr C
SA 302 Gr D
manganese, Nickel and Molybdenum alloyed steel plate with tensile strength as high as 80,000 mim'm is heat treated and used for storage tank construction and pressure vessels.

Alloy Steel Plate

In the manufacturing of process heating equipments like boiler/ ducts / hot rollers / containers, if the temperature exceeds 450 Degree Centigrade and with in 550 Degree Centigrade, then boiler quality alloy steel plate can be efficiently used to fabricate Steam Drums, Mud Drums, Dished ends etc. ASME specifies a set of Alloy Steel Plate specifications Which can be rolled, forged, welded, bended and fabricated etc . Here root weld is done on inner side, chipped on outer sides and welded. Thickness range from 6 mm to 100 mm Electrode - E.8018 is used. Negative Tolerance i.e variation in thickness is to be checked from ASME SEC viii DIV-1