20Mn5
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DIN EN 10083-3 Specification hardened and tempered steel 20Mn5 round bar, flat bar, plate 20Mn5, Hot forged & rolled, Heat treated
MATERIAL DATA SHEET - DIN 20Mn5
MATERIAL SPECIFICATIONS - DIN EN 10083-3 (2006), DIN 17200 (1987)
CHEMICAL COMPOSITIONS (mass weight %)
Carbon, C (％): 0.17 ~ 0.23
Silicon, Si (％): ≤ 0.60
Manganese, Mn (％): 1.00 ~ 1.50
Phosphorus, P (％)≤: 0.035
Sulfur, S (％)≤: 0.030
Chromium, Cr (％): -
Molybdenum, Mo (％): -
Nickel, Ni (％): -
Other(％): Al 0.02 min, 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: 820～850 water, 830 ~ 860 oil
Heat treatment temperature / ℃ | tempering : 550～660
Hardness after annealing ≤ HBS: -
Steel dimension /mm: ≤16
Tensile strength, Rm ≥ MPa: 540 ~ 690
Yield strength, Rp0.2 ≥ MPa: 390
Elongation, A5 ≥ (%): 22
Reduction of area, Z ≥ (%): 50
Impact strength, AKv ≥ J: 69
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.
PROFILE & DIMENSIONS
Round bar / disc (diameter): 6.0 to 800 mm
Square bar / flat bar: 8 to 630 mm
Plate / Sheet steel / Steel strip: 0.4 to 600 mm
Width: 8 to 300mm
Length: random length or based on the customer's special requirement.
Forged steel shape: stepped shafts, other different shapes based on OEM.
TECHNICAL SALES ASSISTANCE
If you meet further on any technical enquiry. pleased to email or call our resident team of qualified production engineers, Email: sales@ccsteels.com
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