A455 steel chemical composition, A455 steel mechanical property

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A455 steel
Steel Category:Steel for Boilers and Pressure Vessels
Steel standard:ASTM          
Steel grade:ASTM A455   
Dimension: Thickness 5-300mm, Width 1500-3500mm, Length 3000-12000mm
Application:It is a normalized steel plate and sheet which is mainly used for building pressure vessels and boilers and pipes for hot liquid.  

A455 steel chemical composition:

Element	Max %	Element	max %
C	0.18	Cu	0.30
Si	0.40	Mo	0.08
Mn	0.50-1.40	N	0.02
P	0.03	Nb	0.05
S	0.03	Ni	0.50
AL	0.020	Ti	0.03
Cr	0.30	V	0.05
Nb+Ti+V	0.05

  A455 steel mechanical property:

Grade	Material	Thickness	Yield Strength	Tensile Strength	Elongation
		(mm)	MPa (min)	MPa	% (min)
A455	1.0487	≤ 16	275
		16 > to ≤35	275
		35 > to ≤50	265
		50 > to ≤70	255	370-490	23
		70 > to ≤100	235	350-470	1)
		100 > to ≤150	225	1)	1)
		>150	390-510	24

The impact test of EN A455 steel

Type	Usual Dekivery Condition	Norminal Thickness (mm)	Impact Energy KV min[J] at temperature [°C]
			Longitudinal					Longitudinal
			-50	-40	-20	0	+20	-50	-40	-20	0	+20
A455	N	5-150	-	-	40	47	55	-	-	20	27	31

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