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SA387 Grade 91 steel Plate

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Product: Hot rolled chromium-molybdenum alloy steel plates intended particularly for welded boilers and pressure vessels designed for elevated temperature service.
SA387 Grade 91 steel product available : SA387 Grade 91 Steel plates, SA387 Grade 91 steel sheets,
SA387 Grade 91 steel standard :ASME SA387/SA387M
ASME SA387/SA387M SA387 Grade 91 specification includes two classes : SA387 Grade 91 Class 1, SA387 Grade 91 Class 2,
SA387 Grade 91 delivery condition: Thermally treated, A(Annealed),N&T (Normalized + Tempered), Q&T(Quenched+Tempered)

SA387 Grade 91 pressure vessel steel chemical composition %

Grade UNS No. C Mn P max S max Si Cr Mo Ni max V Co Nb Al max Ti max Ti max  
SA387 Grade 91 K90901 0.08-0.12 0.30-0.60 0.025 0.010 0.20-0.50 8.00-9.50 0.85-1.05 0.40 0.18-0.25 0.06-0.10 0.03-0.07 0.02 0.01 0.01  

SA387 Grade 91 pressure vessel steel Mechanical properties
Grade UNS No. Yield strength ReH MPa min Tensile strength Rm MPa Elongation A% min
200mm 50mm
SA387 Grade 91 class 1 K90901 205 415-585 - 18
SA387 Grade 91 class 2 310 515-690 - 18

JOIN-WIN STEEL keeps enough quantity SA387 Grade 91 steel in stock each month. We can meet our customer’s further process request like : cutting ( any size and any shape ) drilling, welding, milling, machining and steel structure.

Others steel grades steel plate for pressure vessel and boiler equipment in the standard ASTM A387/A387M and ASME SA387/SA387M:
A387 Grade 2 alloy steel plate for pressure vessels,
A387 Grade 12 alloy steel plate for pressure vessels,
A387 Grade 11 alloy steel plate for pressure vessels,
A387 Grade 22 alloy steel plate for pressure vessels,
A387 Grade 22L alloy steel plate for pressure vessels,
A387 Grade 21 alloy steel plate for pressure vessels,
A387 Grade 21L alloy steel plate for pressure vessels,
A387 Grade 5 alloy steel plate for pressure vessels,
A387 Grade 9 alloy steel plate for pressure vessels,
A387 Grade 91 alloy steel plate for pressure vessels,
SA387 Grade 2 alloy steel plate for pressure vessels,
SA387 Grade 12 alloy steel plate for pressure vessels,
SA387 Grade 11 alloy steel plate for pressure vessels,
SA387 Grade 22 alloy steel plate for pressure vessels,
SA387 Grade 22L alloy steel plate for pressure vessels,
SA387 Grade 21 alloy steel plate for pressure vessels,
SA387 Grade 21L alloy steel plate for pressure vessels,
SA387 Grade 5 alloy steel plate for pressure vessels,
SA387 Grade 9 alloy steel plate for pressure vessels

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