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20mn5 Steel

MATERIAL SPECIFICATIONS ※ DIN EN 10083-3 (2006), DIN 17200 (1987) CHEMICAL COMPOSITION (WEIGHT %) C(%): 0.17~0.23 Si(%): ≤0.60 Mn(%): 1.00~1.50 P(%)≤: 0.035 S(%)≤: 0.030 Cr(%): - Mo(%): - Ni(%): - Other(%): Al 0.015~0.050, Cr+Ni+Mo≤ 0.63 MECHANICAL PROPERTIES - HOT WORKING, HEAT TREATMENT AND HARDNESS Hot working temperature /℃: 1100~850 Heat treatment temperature /℃ annealing: 650~700 Heat treatment temperature /℃.

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  • 20mn5

20mn5 Plate


MATERIAL SPECIFICATIONS  

DIN EN 10083-3 (2006), DIN 17200 (1987)


CHEMICAL COMPOSITION (WEIGHT %)
C(%): 0.17~0.23
Si(%): ≤0.60
Mn(%): 1.00~1.50
P(%)≤: 0.035
S(%)≤: 0.030
Cr(%):  —
Mo(%): —
Ni(%): —

Other(%):  Al 0.015~0.050, Cr+Ni+Mo≤ 0.63


MECHANICAL PROPERTIES - HOT WORKING, HEAT TREATMENT AND HARDNESS

Hot working temperature /℃: 1100~850
Heat treatment temperature /℃ annealing: 650~700
Heat treatment temperature /℃ Normalizing: 850~880
Heat treatment temperature /℃ Quenching: 820~850water, 830 ~ 860oil
Heat treatment temperature /℃ Tempering: 550~660
Hardness after annealing ≤HBS: -
Steel dimension/mm: ≤16
|σb≥/MPa: 540 ~ 690
|σs≥/MPa: 390
|δ5≥/(%): 22
|ψ≥/(%): 50
|AKV≥/J: 69
Steel dimension /mm: 17-40
|σb≥/MPa: 490 ~ 640
|σs≥/MPa:  345
|δ5≥/(%): 20
|ψ≥/(%): 55
|AKV≥/J: 69
Steel dimension /mm: 41-100
|σb≥/MPa: 490 ~ 590
|σs≥/MPa: 295
|δ5≥/(%): 18
|ψ≥/(%): 60

|AKV≥/J: 76

          

AVAILABLE SHAPES  
Black bar/Flat bar/Square bar/Pipe, Steel strip, sheet
Bright - peeled + polishing, centerless grinding

Forged - ring, tube, pipe casing, discs, shaft


TYPICAL APPLICATIONS
Alloy structural steels are widely used in the filed of ship, vehicle, airplane, guided missile, weapons, railway, bridges, pressure vessel, machine tools, mechanical components with a bigger sectional size and so on.
Mechanical gears, gear shaft, main axis, valve rod
Mechanical parts - connecting rod, bolt and nut
Multidiameter shaft
Pressure vessel, seamless pipe
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