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RELATIVE PROPERTIES

SITHERM 2344 Steel

Designation by Standards

 

Brand Name

Ravne

Mat. No.

DIN

EN

AISI/SAE

SITHERM 2344

UTOPMO2

1.2344

-

X40CrMoV5-1

H13

Chemical Composition (in weight %)

 

C

Si

Mn

Cr

Mo

Ni

V

W

Others

0.39

1.00

0.38

5.15

1.35

-

1.00

-

-

Description

This alloy is one of the hot work, chromium type tool steels. It also contains molybdenum and vanadium as strengthening agents. The chromium content assists this alloy to resist softening if used at higher temperatures. Secondary hardening steels with good tempering reistance. It maintains high hardness and strength at elevated temperatures. Good resistance to thermal fatigue, erosion and wear.

Steel with very high thoughness and good ductilityand hardenability. Tools can be water cooled.

 

Applications

H13 finds applications for hot die work, die casting and extrusion dies, wear resisting tools, pressure die casting tools, pressing tools for light and heavy metal. For the highest requirements we recommended UTOPMO2 ESR EFS.

 

Physical properties (average values) at ambient temperature

Modulus of elasticity [103 x N/mm2]: 215 Density [g/cm3]: 7.78

Thermal conductivity [W/m.K]: 25.0

Electric resistivity [Ohm mm2/m]: 0.52 Specific heat capacity[J/g.K]: 0.46

 

Thermal conductivity [W/m.K]M

 

20oC

500oC

600oC

25

28.5

29.3

 

Density [g/cm3]

 

20oC

500oC

600oC

7.78

7.64

7.60

 

Electric resistivity [Ohm mm2/m]

 

20oC

500oC

600oC

0.52

0.86

0.96


 

20oC

500oC

600oC

0.46

0.55

0.59

 

Coefficient of Linear Thermal Expansion 10-6 oC-1

 

20-100oC

20-200oC

20-300oC

20-400oC

20-500oC

20-600oC

20-700oC

20-800oC

10.7

11.9

12.2

12.5

12.7

13.1

13.5

13.7

Continuous Cooling Transformation (CCT) Diagram

Soft Annealing

Heat to 760-810oC, cool slowly in furnace. This will produce a maximum Brinell hardness of 229.

 

Hardening

Harden from a temperature of 1020-1060oC followed by oil, air quenching or warm bath (450-550oC). Hardness after quenching is 52- 56 HRC.

 

Tempering

Tempering temperature: See the diagram bellow.


 

100oC

200oC

300oC

400oC

500oC

550oC

600oC

650oC

700oC

53

52

51

52

54

53

50

43

31

1845

1790

1730

1790

1910

1845

1680

1360

995


Tempering Diagram

Diagram Tempering Temperature - Mechanical Properties


Hot forming temperature: 1100-900oC.

 

Machinability

Machinability of H13 is medium to good. It rates as 75 % that of the W group water hardening tool steels which are low alloy and of generally good machinability.

 

Corrosion Resistance

This alloy has some corrosion resistance due to its chromium content. However it is still a steel and will rust unless given protective coating.

 

Welding

This alloy is weldable. Contact the alloy supplier for information on welding procedures. Forms manufactured: Please see the Dimensional Sales Program.

Disclaimer

The information and data presented herein are typical or average values and are not a guarantee of maximum or minimum values. Applications specifically suggested for material described herein are made solely for the purpose of illustration to enable the reader to make his own evaluation and are not intended as warranties, either express or implied, of fitness for these or other purposes. There is no representation that the recipient of this literature will receive updated editions as the become available.

 

Unless otherwise specified, registered trademarks are property of SIJ Metal Ravne company. Copyright 2016 by SIJ Metal Ravne d.o.o. All rights reserved. Contact our Sales Office for more information.