Quick Details


1: 21CrMoV5-7 steel introduction
21CrMoV5-7 Steel is a high quality High Temperature Alloy Structural steel, which belongs to the alloy steel for fasteners with high or low temperature performance. It has high strength and good performance after heat treatment, and is generally used in quenched and tempered state. 21CrMoV5-7 steel,also refers to DIN 1.7709, is defined as pearlitic heat-resistant steel with high content Cr and Mo as per EN 10269 Standard.
2: 21CrMoV5-7 steel equivalent
Country
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China
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Japan
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Germany
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USA
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Standard
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GB/T
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JIS
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DIN (W-Nr.)
DIN EN 10269
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AISI/ASTM
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Grade
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|
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21CrMoV5-7
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3: 21CrMoV5-7 steel chemical composition
Grade
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C
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Si
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Mn
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P
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S
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Cr
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Mo
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Ni
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V
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21CrMoV5-7
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0.17-0.25
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0.40
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0.40-0.80
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0.025
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0.03
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1.20-1.50
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0.55-0.80
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0.60
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0.20-0.35
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4: 21CrMoV5-7 steel mechanical properties
The mechanical properties mainly include tensile strength, yield strength, elongation, area or reduction, hardness, impact value, non-metalic inclusion etc. Different heat treatment, the mechanical properties will be different, such as normalized, tempered, QT. If you want to know the properties, kindly contact the salesman.
5: 21CrMoV5-7 steel overviews
Size
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Round
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Dia 6-1200mm
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Plate/Flat/Block
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Thickness
6mm-500mm
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Width
20mm-1000mm
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Heat treatment
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Normalized ; Annealed ; Quenched ; Tempered
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Surface condition
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Black; Peeled; Polished; Machined; Grinded; Turned; Milled
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Delivery condition
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Forged; Hot rolled; Cold drawn
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Test
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Tensile strength, Yield strength, elongation, area of reduction, impact value, hardness, grain size, ultrasonic test, US inspection, magnetic particle testing, etc.
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Payment terms
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T/T;L/C;/Money gram/ Paypal
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Trade terms
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FOB; CIF; C&F; etc..
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Delivery time
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30-45 days
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Application
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21CrMoV5-7 is used for engineering structural, like high tensile shafts, bolts and nuts, gears, pinions and spindles. Locomotive traction with the big gear, supercharger drive gear, pressure vessel, rear axle, gear load of connecting rod and a spring clip,21CrMoV5-7 steel can also be used to under 2000 m deep well of oil drill pipe joint and the fishing tool, and can be used for bending machine mould, etc.
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6: Heat Treatment
Heat treatment temperatures, rate of heating, cooling and soaking times will vary due to factors such as the shape and size of each component. Other considerations during the heat treatment process include the type of furnace, the quenching medium and work piece transfer facilities. Please consult a heat treatment specialist for full guidance on heat treatment.
7: Delivery condition
For hot forged bar, usually the delivery condition is hot forged, annealed/QT, rough turned/Black surface.
For hot rolled bar, usually the delivery condition is hot rolled, annealed/QT, Black surface.
For hot forged block, usually the delivery condition is hot forged, annealed/QT, milled surface/Black surface
For hot rolled plate, usually the delivery condition is hot rolled, annealed/QT, black surface.
For cold drawn bar, usually the delivery condition is cold drawn, annealed/QT, peeled/black surface