Ordinary strength RMRS grade A shipbuilding steel plate

Posted:2020-04-27 13:43:27

RMRS grade A shipbuilding steel plate is ordinary strength shipbuilding plate. It is mainly used to build hull of vessels and for ship body construction. The yield strength of RMRS grade A shipbuilding steel plate is 34,100 psi (235 MPa), and ultimate tensile strength of RMRS grade A shipbuilding steel plate is 58,000 - 75,500 psi (400-520 MPa).

Ordinary strength RMRS grade A shipbuilding steel plate chemical composition:

C max	Si max.	Mn min.	P max	S max	Cu max	Cr max	Ni max
0.21	0.50	0.50	0.035	0.035	0.35	0.30	0.30

Ordinary strength RMRS grade A shipbuilding steel plate mechanical property:

Grade		Mechanical Property			Charpy V Impact Test
Grade	Thickness	Yield	Tensile	Elongation	Degree	Energy 1	Energy 2
RMRS grade A	mm	Min Mpa	Mpa	Min %	20	J	J
	t≤50	235	400-520	18%		-	-
	50<t≤70	235	400-520	18%		24	34
	70<t≤100	235	400-520	18%		27	41
Note: Energy 1 is transverse impact test, Energy 2 is longitudinal

Ordinary strength RMRS grade A shipbuilding steel plate has good toughness, processing and welding properties, as well as strong corrosion resistance. RMRS grade A shipbuilding steel plates are almost exclusively used in the shipbuilding industry for the construction of structural parts of ships, barges and marine equipment.

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