Product:1.2714,L6
Key words:tool steel,die steel,specialty steel,steel bar,hotwork,coldwork,forged bar,alloy tool steel,flat bar, round bar,
Typical Analysis:
C : 0.65-0.75
Si : 0.10-0.50
Mn: 0.25-0.80
P : Max 0.030
S : Max 0.030
Cr: 0.60-1.20
Mo: Max 0.50
Ni: 1.25-2.00
Similar Grades:DIN 1.2714, GB/T 5CrNiMo
Advantages:
Good toughness at lower hardness lever.
Good wear at high hardness lever.
Application:
L6 was designed for general purpose tools where greater toughness is required, such as forming rolls, punches, blanking dies, shear blades,and spindles.
Machinability:
L6 has a machinability rating of 85% of a 1% carbon tool steel.
Annealing:
L6 should be annealed at 1400°F and held for one hour per inch of thickness. Cool at 20°F per hour to 900°F and then air-cool. A maximum hardness of 217 Brinell should be obtained.
Hardening:
L6 should be preheated to 1200°F then heated to 1500°to 1550°F and held for one hour per inch of thickness. Quench in oil to 150°F followed immediately by tempering. L6 can also be air quenched in sections less than 1" thick.
