NC11/1.2080/X210Cr12

COLD WORK TOOL STEEL

NORM: ISO 4957

APPLICATION:

Steel susceptible to cutting tools highly exposed on stresses, punching tools for thin steel plates, cutters for steel sheets and strips, pull broaches, profile rolls, flanges, thread tools, deep drawing tools, pressing tools for ceramic and pharmaceutical industries, wire drawing dies, tools not subject to high impacts, blanking dies, piercing punches, broaching rings, cold work demurring machines, thread jaw cutters, simpler cutting plates for blanking dies, electrolytic siliceous and other sheet-metal stamping tools and circular tools.

CHEMICAL COMPOSITION:

CSiMnPSCrMoWVCoNi
1,90- 2,200,10- 0,600,20- 0,60Max 0,030Max 0,03011,00- 13,00-----

MECHANICAL PROPERTIES:

Hardness after Tempering ºC Unit Value
Softening HB ≤248
Quenching with 970 ºC in oil HRC 64.5
Quenching with 970 ºC in oil and tempering 180 HRC ≥62
200 HRC 63
250 HRC 62
350 HRC 59
400 HRC 57.5
450 HRC 56
500 HRC 54
550 HRC 51

PHYSICAL PROPERTIES:

Property Unit Value
Density, ρ g*cm-3 7.65
Linear expansivity, α20-100ºC) K-1 10.2*10-6
Specific thermal conductivity, λ20ºC) W*m-1*K-1 17

Technological treatment processes:

Technological treatment processes Possible application Temperature, °C
Forming processes Forging + 1050-850
Rolling + 1050-850
Heat treatment Thermal hardening Quenching + 960-1000
Tempering + 170-520
Precipitation hardening Supersaturation
Ageing
Annealing Softening + 820-860
Stress relieving + 600-700
Thermochemical treatment Nitriding
Other

INTERNATIONAL STEEL GRADES:

ISO EN Russia
X210Cr12 ISO 4957:2004 X210Cr12 ISO 4957:2004 H12 GOST 5950-73
US Japan China
~D3 ASTM A 681-91 ~SKD 1 JIS G 4404-1983 Cr12 GB 1299-85