ASTM A572Gr42

A572Gr42/50 steel plate, ASTM A572Gr42/50 steel plate, under ASTM standard, we can regard A572Gr42/50 steel plate as low alloy steel
A572Gr42/50 steel plate is one mainly of low alloy steel, ASTM A572Gr42,50,55,60,65 steel is high strength low alloy steel plate sheet which is widely used in plants building, general mansions and all kinds of construction machinery, such as mines and various types of drilling rig used in construction, power shovel, electric wheel dump trucks, mining vehicles,excavators, loaders, bulldozers , various types of cranes, hydraulic support, coal mining machinery and equipments and other structures
Equivalent grade :
A572Gr42/50 steel plate/sheet is in ASTM standard.The equal material of A572Gr42/50 is: ASTM:1990 FE 510 B, DIN17100 ST52-3, NFA 35-501 E36-2, EN 10025-2 S355JR, JIS SS490/SM490A, BS1449 50B,UNI7070 FE 510 B .

A572GR50 ASTM	Comparison of steel grades
	ASTM:1990	FE 510 B
	DIN17100	ST52-3
	EN 10025-2	S355JR
	JIS	SS490/SM490A
	NFA 35-501	E36-2
	BS1449	50B
	UNI7070	FE 510 B

ASTM A572Gr42/50 steel Chemical Composition % :

Main chemical composition in ASTM A572Gr42/50 steel : Silicium max 0.55,Manganese max 1.6, Phosphorus max 0.045,Sulphur max 0.045. More detailed information, please refer to the flowing table:

Chemical elements	C≤ 16mm max	C>16mm max	Si max	Mn max	P max.	S max.
%,by mass	0.24	0.24	0.55	1.60	0.045	0.045

ASTM A572Gr42/50 steel Mechanical Properties

ASTM A572Gr42/50 steel plate/sheet for low alloy steels, This kind of steel has very wide use. Because of the low Carbon content and without alloy element, carbon structural steel has the proper tensile strength, good toughness, plasticity,processing property. More detailed information about ASTM A572Gr42/50 steel Mechanical Properties , please refer to the following table:

thickness	Yield StrengthReH[N/mm2] transv.min.	TensileStrengthRm[N/mm2]transv.	Fracture Elongation[%]transv. min.	Notch Impact Energy1)Ch Vcomplete samplelongitud. min [J]
t≤ 16mm t >16mm	355 345			20 degree 27J
t < 3mm t ≥ 3mm		510-680 490-630
Up to 1.5mm 1.51-2.00mm 2.01-2.50mm 2.51-2.99mm ≥ 3mm			13 14 15 16 20

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