Cold Work Tool Steel bar 1.2767/45NiCrMo16 – GMTC

1.2767

SpecificationDIN 17350

This nickel containing cold work tool steel has good hardenability and toughness, and can be polished, photoetched, and etched. It is applied for forged tools, molds of various shapes and dimensions, and hot forged as well as stamping tools.

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Introduction

Product properties

˙ High impact resistance

˙ Good wear resistance

˙ High Compressive strength

˙ Proper machinability

˙ Good hardenability

Industrial Applications

˙ Stamping tool

˙ Mold

˙ Hot forged tool


Specifications

Chemical composition (wt. %)

Element
C
Si
Mn
P
S
Cr
Mo
Ni
Min.
0.40
0.10
0.15
-
-
1.20
0.15
3.80
Max.
0.50
0.40
0.45
0.030
0.030
1.50
0.35
4.30

Physical Property

Density (g/cm^3)
7.84

Modulus of elasticity

Temperature (℃)
Gpa
20
190

Thermal Expansion Coefficient

Temperature (℃)
10^-6/℃
20~100
11.7

Thermal Conductivity

Temperature (℃)
W/m·K
20
28

Mechanical Property

Items
Specification Values
Annealing Hardness
262 HBW max.
Quenching & Tempering Hardness
52 HRC 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
130 x 130, 140 x 140, 150 x 150, 160 x 160
7,000 max.

Heat Treatment Conditions

Heat Treatment Conditions
850℃ Oil Cooling +180℃ Air Cooling

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