Chrome Molybdenum Steel

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BS 1501 621B Chrome Moly Plate

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Chrome Moly Plate Home Page BS 1501 BS 1501 620B | BS 1501 621B | BS 1501 622B

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Grade 621B has long been superseded by EN10028 but as our clients still make reference to this chrome moly grade, we have included details here, which should be used for cross reference purposes.

621B is a chrome moly steel for use in pressurised vessels and boilers found commonly in the oil and gas industry. The material has good tensile and yield strength and is designed to operate in higher working temperatures. 621B has good weldability and corrosion resistance.

Please refer to the technical information below for this particular steel grade...

Chemical Composition

Grade	C	Si	Mn	P	S	Cr	Mo	Ni	Others
621B	0.09/0.17	0.50/0.80	0.40/0.65	0.025	0.015	1.00/1.50	0.45/0.60	0.30	0.32

Mechanical Properties

Grade	Thickness	Tensile Strength	Yield Strength	Elongation (A)
621B	≤75	515/690	340	18
	>75 ≤100	500/670	320	16
	>100 ≤150	490/650	310	16

For more information about our chrome molybdenum steel plates please  CLICK HERE  to contact us.

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call : +44(0)1675 437733
e–mail: enquiries@masteel.co.uk

Steel Product Range:

•  pressure vessel steel		•  boiler quality steel		•  hic resistant steel		•  chrome moly steel
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Masteel UK Ltd The Cedars, Coton Road Nether Whitacre, Coleshill Birmingham, West Midlands t: +44(0)1675 437733 f: +44(0)1675 437733

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