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Pressure Vessel Plate BS 1501 223 490B LT30

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The grade BS 1501 223 490B LT50 shows that the steel will have a minimum tensile strength of 490 N/mm2 (490), has elevated temperature properties reported (B), and has low temperature impact properties specified at -30 deg C (LT30).

As well as BS 1501 223 490B LT30, we are also stockists of plates manufactured and certified to:

BS 1501 224 490B LT50 BS 1501 225 490B LT50

Chemical Requirements Chemical composition (ladle analysis, %) of steel 223 Grade 490

C Si Mn P S
0.20 max 0.10 - 0.50 0.90 - 1.60 0.030 max 0.030 max
Nb Cr* Cu* Mo* Ni
0.01 - 0.06 0.25 max 0.30 max 0.10 max 0.75 max
Tensile Requirements

Plate Thickness Tensile Rm Yield Re Elong. A
over 3 mm to 16 mm 490 - 610 N/mm2 355 N/mm2 min 21% min
over 16 mm to 40 mm 490 - 610 N/mm2 345 N/mm2 min 21% min
over 40 mm to 63 mm 490 - 610 N/mm2 340 N/mm2 min 20% min
over 63 mm to 100 mm 490 - 610 N/mm2 * 20% min
over 100 mm to 150 mm 490 - 610 N/mm2 * 20% min
Charpy V-notch impact values
Impact test values, average of three at tempereature specified below

RT 0oC -15oC -30oC
61 J min 55 J min 41 J min 27 J min
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