TECHNICAL DATASHEET - Grade DIN 50CrV4
MATERIAL CATEGORY - Flame and high-frequency heating surface hardening steel
MATERIAL SPECIFICATION - DIN EN 10083-2/3 (2006), DIN 17212 (1972)
CHEMICAL COMPOSITION (mass weight - %)
Carbon, C (%): 0.47 ~ 0.55
Silicon, Si (%): ≤ 0.40
Manganese, Mn (%): 0.70 ~ 1.10
Phosphorus, P (%) ≤: 0.035
Sulfur, S (%) ≤: 0.035
Chromium, Cr (%): 0.90 ~ 1.20
Molybdenum, Mo (%): -
Vanadium, V (%): 0.10 ~ 0.25
MECHANICAL PROPERTIES - HOT WORKING, HEAT TREATMENT AND HARDNESS
Hot working temperature /ºC: 1100~850
Heat treatment temperature /ºC|annealing: 680~720
Heat treatment temperature /ºC|normalizing: 870~900
Heat treatment temperature /ºC|quenching: 820~850Water.830~860Oil
Heat treatment temperature /ºC|tempering: 480~650
Heat treatment temperature /ºC|surface hardening: 840~870
Surface hardness HBC≤: 57~62
Size /mm: ≤16
|σb≥/MPa: 1080~1270
|σs≥/MPa: 880
|δ5≥(%): 9
|ψ≥(%): 40
|AKV≥/J: 34
Size /mm: 16~40
|σb≥/MPa: 980~1180
|σs≥/MPa: 780
|δ5≥(%): 10
|ψ≥(%): 45
Size /mm: 40~100
|σb≥/MPa: 900~1080
|σs≥/MPa: 690
|δ5≥(%): 12
|ψ≥(%): 50
|AKV≥/J: 35
Size /mm: 100~250
|σb≥/MPa: 780~980
|σs≥/MPa: 590
|δ5≥(%): 13
|ψ≥(%): 50
PROFILE & DIMENSIONS
Round bar / Wire rod (Diameter): 5.5mm to 550mm
Square bar / Flat bar: 10mm to 800mm
Length: Fixed length or random length or based on the customer's special requirement.
Heavy/middle plate via hot rolled: T60 - 200mm X W50 ~ 1000mm X L1000 ~ 4000mm
Sheet steel via cold rolled: T1.5 - 6mm X W10 ~ 400mm X L1000 - 2000mm
Steel strip via cold rolled: T0.1 - 3mm X W5 - 200mm X L (or in coil form)
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.
Power generation - turbine fasteners - boiler support rods.
Process plant - fasteners, Mechanical gears, gear shaft, main axis, valve rod.
Mechanical parts - connecting rod, bolt and nut, Multidiameter shaft.
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