1.2367/X38CrMoV5-3

TOOL STEEL / DIE STEEL

NORM: ISO 4957

APPLICATION:

Steel susceptible to large die casting tools, tools needing high strength at elevated temperatures, forged dies, products under a high load, mandrels and extrusion dies.

CHEMICAL COMPOSITION:

CSiMnPSCrMoWVCoNi
0,35-0,400,30-0,500,30-0,50Max 0,030Max 0,0304,80-5,202,70-3,20-0,40-0,60--

MECHANICAL PROPERTIES:

Hardness after Temperature ºC Symbol Value
Soft annealing HB ≤229
Quenching with 1040 ºC in oil HRC 56
Quenching with 1040 ºC in oil and tempering

(cooling during quenching can be performed gradually in the hot bath at around 500-550 ºC and then cooled in the air)

550 HRC ≥50
350 HRC 52
400 HRC 53
450 HRC 53.5
500 HRC 54
550 HRC 54
600 HRC 51.5
650 HRC 4.,5

PHYSICAL PROPERTIES:

Property Unit Value
Density, ρ g*cm-3 7.82
Thermal expansion, α20-100ºC) K-1 12.7*10-6
Thermal conductivity, λ20ºC) W*m-1*K-1 36

Technological treatment processes:

Technological treatment processes Possible application Temperature, °C
Hot forming Forging + 1050-850
Rolling + 1050-850
Treatment Heat treatment Quenching + 1030-1070
Tempering + 500-600
Precipitation strengthening Supersaturation
Ageing
Annealing Soft anealing + 800-840
Stress relieving + 600-700
Thermochemical treatment Nitriding + 470-550
Other

INTERNATIONAL STEEL GRADES:

ISO EN Russia
X38CrMoV5-3 ISO 4957:2004 X38CrMoV5-3 ISO 4957:2004
US Japan China