Products

HOT WORK STEEL

  

Shape :
Grade :

Standards

DIN 2714

DB6

AISI L6

AFNOR 55NCDVV7
55NiCrMoV
C Si Mn P S Cr Ni Mo V
0.50-0.60 1.10-0.40 0.65-0.90 <0.015 <0.004 1.00-1.20 1.50-1.80 0.45-0.55 0.07-0.12
Virat Special SteelsDIN 2714

DIN 1.2714 is highly recommendable for Close Die Forgings due to its characteristics of high wear-resistance, extra toughness , high hardness which is achieved with Cr-Ni-Mo-V high graded alloys.
The equivalent grade DB6 / L6 / SKT4 normally used as a pre hardened condition. The standard hardness is 360 to 430 BHN. DIN 2714 is the upgraded version of DIN 2713 for better performance of dies.
We supply Die blocks as the extra Forging Reduction & Upsetting with Double tempered to achieve the better Ultrasonic quality.

Steel Properties

The special Hot Work Pre hardened Steel with good toughness and high ware resistance. Die Steel is normally supply in hard, quenched & tempered and also in annealed condition in special case. Usually its working hardness is 360-430 BHN. This steel grade is the upgrade version of DIN 2713 for better performance.

Physical Properties
Coefficient of thermal expansionat °C 20-100 20-200 20-300 20-400 20-500 20-600
10-6 m/(m*K) 12.1 13.1 13.2 13.5 14.1 14.3
Thermal Conductivity °C 20 350 700
W/(m*K) 35.0 39.0 36.0
Application

Dies for Drop Forging Hammers & Mechanical Presses, Die Molds, Shoe Blocks, Die Holder, Cassettes, Piston Rods, Cranks, Boaster, Shearing Blades, Tools, plastic molds, Shafts Etc.

Heat Treatment
Soft annealing °C Cooling Hardness HB
650-710 Furnace max. 240
Hardening °C Quenching Hardness after quenching HRC
840-880 Oil 57
860-900 Air 55
Tempering °C after quenching 100 200 300 400 450 500 550 600 650
in Oil - HRC 56 54 52 49 47 46 43 38 34
in Air - HRC 54 52 50 47 45 43 40 36 32
db6
2714

Standard Size Available