Hot Work Tool Steel bar 1.2714/55NiCrMoV7/SKT4 – GMTC

1.2714

  • 55NiCrMoV7, T61206, SKT4

SpecificationDIN 17350

This nickel hot work tool steel produced by GMTC has good hardenability, wear resistance, thermal fatigue resistance, and thermal stress resistance, good strength at high temperatures, and good tempering resistance.

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Introduction

Product properties

˙Good toughness

˙Great wear resistance

˙Good hardening crack resistance

Industrial Applications

˙Forged tools

˙Forming mold

˙Stamping tools

Specifications

Chemical composition (wt. %)

Element
C
Si
Mn
P
S
Cr
Mo
V
Ni
Min.
0.50
0.10
0.65
-
-
1.00
0.45
0.07
1.50
Max.
0.60
0.40
0.95
0.030
0.030
1.20
0.55
0.12
1.80

Physical Property

Density (g/cm^3)
7.8

Modulus of elasticity

Temperature (℃)
Gpa
500
176
600
165

Thermal Expansion Coefficient

Temperature (℃)
10^-6/℃
500
14
600
14.3

Thermal Conductivity

Temperature (℃)
W/m·K
500
36.8
600
36

Mechanical Property

Items
Annealed
Hardness (HBW)
248 max.
Hardness After Quenching (hardenability) (HRC)
44 min.

Size Ranges

Products
Diameter (mm)
Length (mm)
Rolled bar
10~95
3,000~5,700
Forged bar
95.2~440
3,000~5,700
Billet
130x130, 140x140, 150x150, 160x160
7,000 max
Flat bar
80x80 (min.)
Based on the customer needs

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