Quick Details
1: 20Cr4 steel introduction
20Cr4 alloy structural steel has high strength and hardenability, 15Cr steel has poor toughness, good weldability and generally does not need heat treatment after welding.
2: 20Cr4 steel equivalent
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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 17210
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AISI/ASTM
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Grade
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20Cr4
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5120
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3: 20Cr4 steel chemical composition
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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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20Cr4
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0.17-0.23
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0.40
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0.60-0.90
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0.035
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0.035
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0.90-1.20
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5120
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0.17-0.22
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0.15-0.30
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0.70-0.90
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0.035
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0.04
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0.70-0.90
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4: 20Cr4 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: 20Cr4 steel overviews
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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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20Cr4 is used for carburized parts with high core strength requirements and surface wear, large size, or complex shape and low load. Such as gear, gear shaft, cam, piston pin, worm, etc., can also be used as high speed and bear moderate impact load quenching and tempering parts.
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6: 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
