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BW450 B : Baosteel,W : Wear Resistant Steel, 450 : Brinell hardness value

BW450 steel are produced from processes of hot rolling, cutting into length and heat treating. The products are characterized with small thickness, good flatness, outsanding wear resistance, excellent toughness, good weldability, good machinablility, consistent property and quality.

BW450 steel application :
BW450 steels are developed for applications where high wear resistant performance is required, such as dumper, garbage vehicle, concrete mixer truck, industrial air fan, hopper, crusher, machinery for coal, grain , cement, grabbucket, etc.

BW450 steel plate Mechanical Properties

Grade	Thickness(mm)	Tensile test			Brinell hardness	Impact energy	90° bending
		Yield strength ReH,MPa	Tensile strength Rm,MPa	Elongation A50 %	HBW	Impact energy -40℃ KV2,J	Bending diameter
BW450	3-12	≥1100	≥1300	≥7	450±30	≥20	d = 7a

BW450 steel Typical Properties

Parameter	Unit	BW450
CEV(IIW)	%	0.52
Welding crack sensitivity index Pcm	%	0.29
Yield Strength Re	MPa	1200
tensile strength Rm	MPa	14300
Elongation A5 0	%	12
Impact energy （-40℃） KV2	J	60
HBW	HBW	450
90° bending		D=6t
Young’s modulus(20℃)	GPa	210
Shear modulus(20℃)	GPa	80.8
Poisson ratio(20℃~40℃)	---	0.29
Density	g/cm3	7.85
Thermal conductivity (25℃)	W/(m.K)	48.54
Thermal expansivity(25℃)	1/K	1.254×10-5
Specific heat (25℃)	j/(kg.K)	451.89

Result of block-on-ring wear test

Grade	Average scar width, mm	Volume loss mm3	Volume loss rate mm3 N-1 m-1
Q345B	6.90	10.0577	9.1574E-05
BW450	2.29	0.3638	3.3122E-06

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