WCLV/1.2344/X40CrMoV5-1

HOT WORK TOOL STEEL

NORM: ISO 4957

APPLICATION:

Steel susceptible to hot forming tools, die inserts for presses and upsetting machines, extrusion tools from light metals, forging dies, pressure casting tools, hot shear knives, tools for plastic industry and rollers for copper rolling.

CHEMICAL COMPOSITION:

CSiMnPSCrMoWVCoNi
0,35-0,420,80-1,200,25-0,50Max 0,030Max 0,0304,80-5,501,20-1,50-0,85-1,15--

MECHANICAL PROPERTIES:

Hardness after Tempering ºC Symbol Value
Soft annealing HB ≤229
Quenching with 1020 ºC in oil HRC 56
Quenching with 1020 ºC in oil and tempering

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

550 HRC ≥50
350 HRC 53
400 HRC 54
450 HRC 55.5
500 HRC 56
550 HRC 52.5
600 HRC 48
650 HRC 43

PHYSICAL PROPERTIES:

Property Unit Value
Density, ρ g*cm-3 7.79
Linear expansivity, α20-100ºC) K-1 10,7*10-6
Specific thermal conductivity, λ20ºC) W*m-1*K-1 38

Technological treatment processes:

Technological treatment processes Possible application Temperature, °C
Hot forming Forging + 1100-850
Rolling + 1100-850
Treatment Heat treatment Quenching + 1010-1060
Tempering + 480-570
Precipitation strengthening Supersaturation
Ageing
Annealing Soft annealing + 800-840
Stress relieving + 600-680
Thermochemical treatment Nitriding + 470-550
Other

INTERNATIONAL STEEL GRADES:

ISO

EN

Rosja

X40CrMoV5-1

ISO 4957:2004

X40CrMoV5-1

ISO 4957:2004

4H5MF1S

GOST 5950-73

USA

Japonia

Chiny

H13

ASTM A 681-91

SKD 61

JIS G 4404-1983

4Cr5MoSiV1

GB 1299-85