WQ890 steel for construction machinery

Tempered high-strength steel WQ890 for construction machinery
Grade: WQ890 steel plate
WQ890 steel plate technical conditions: This technical condition applies to WQ890 steel plate with thickness ≤50mm. The WQ890 plates are suitable for manufacturing steel structural parts such as coal mine hydraulic supports, heavy vehicles, and construction machinery that require good weldability.

chemical composition(%)

C
Si
Mn
P
S
Mo
Nb
B
Ni
Cr
Ti
V
Ceq
≤ 0.18
≤ 0.50
≤ 1.30
≤ 0.020
≤ 0.010
≤ 0.60
≤ 0.07
≤ 0.003
≤ 1.20
≤ 0.09
≤ 0.03
≤ 0.08
≤ 0.6

Size, shape, weight and tolerance: The size, shape, weight and allowable deviation of the steel plate shall comply with the provisions of GB/T709.
The surface quality of the steel plate shall be in accordance with GB/T3274-88.
The packaging, marking and quality certificates of steel plates shall be implemented in accordance with GB/T247.

Characteristics of WQ890 steel plate:

WQ890 steel is a low-alloy high-strength steel with high strength, good plastic toughness and good welding performance. WQ890 steel plate is widely used in bridge machinery and other engineering components.
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