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A299 Grade B steel Plate

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Product: Hot rolled manganese-silicon carbon steel plates of for use in welded boilers and other pressure vessels.
A299 Grade B steel product available : A299 Grade B Steel plates, A299 Grade B steel sheets, A299 Grade B steel coil, A299 Grade B steel strip
A299 Grade B steel standard :ASTM A299/A299M
ASTM A299/A299M specification includes the grades : A299 Grade A , A299 Grade B ,
A299 Grade B delivery condition: AR(As rolled)

A299 Grade B pressure vessel steel chemical composition %

Grade Thickness C max Mn max P max S max Si
A299 Grade B t≤25 0.28 0.90-1.40 0.025 0.025 0.15-0.40
25﹤t 0.30 0.90-1.50

A299 Grade B pressure vessel steel Mechanical properties
Grade Thickness Yield strength ReH MPa min Tensile strength Rm MPa Elongation A% min
200mm 50mm
A299 Grade B t≤25 325 550-690 16 19
25﹤t 310


JOIN-WIN STEEL keeps enough quantity A299 Grade B 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 A299/A299M and ASME SA299/SA299M:
A299 Grade A steel plate for pressure vessel,
SA299 Grade A steel plate for pressure vessel,
SA299 Grade B steel plate for pressure vessel

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