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High strength plate steel for welded structure BWELDY700QL2, BWELDY700QL4,…

Available materials(Product Standards: BZJ 611-2013)

GradeThickness(mm)
BWELDY700QL2
10-80
BWELDY700QL4
Mainly used for the excavator, forklft, concrete mixter, motocrane, hydraulic support and huge hoist.
BWELDY900QL2
10-50
BWELDY900QL4
BWELDY960QL2
BWELDY960QL4
BWELDY1100QL2
BWELDY1100QL4
Mainly used for the excavator, forklft, concrete mixter, motocrane, hydraulic support and huge hoist.

Chemical composition

GradeChemical composition%
CSiMnPSNbTiVAl
BWELDY700QL2
≤0.18≤0.50≤1.60≤0.025≤0.015≤0.05≤0.05≤0.06≥0.018
BWELDY700QL4
≤0.18≤0.50≤1.60≤0.020≤0.010≤0.05≤0.05≤0.06≥0.018
BWELDY900QL2
≤0.20≤0.50≤1.70≤0.025≤0.015≤0.05≤0.05≤0.06≥0.018
BWELDY900QL4
≤0.20≤0.50≤1.70≤0.020≤0.010≤0.05≤0.05≤0.06≥0.018
BWELDY960QL2
≤0.20≤0.50≤1.70≤0.025≤0.015≤0.05≤0.05≤0.06≥0.018
BWELDY960QL4
≤0.20≤0.50≤1.70≤0.020≤0.010≤0.05≤0.05≤0.06≥0.018

Mechanical properties

GradeThicknessMechanical properties
YS(MPa)TS(MPa)EL%
BWELDY700QL2
≤50≥700770-940≥14
＞50≥670760-930≥14
BWELDY700QL4
≤50≥700770-940≥14
＞50≥670760-930≥14
BWELDY900QL2
≤50≥900940-1150≥12
＞50––≥12
BWELDY900QL4
≤50≥900940-1150≥12
＞50––≥12
BWELDY960QL2
≤50≥960980-1150≥12
＞50––≥12
BWELDY960QL4
≤50≥960980-1150≥12
＞50––≥12

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