W 1.2311

1.2311 is a standard mold steel pre-hardened to 300HB.

Material properties
Standard prehardened steel designed for plastic mold industry.

For which tools
Plastic injection mould cores and cavities, extension dies for thermoplastics.

For which plastics
Thermoplastics (PE, PP, PS), thermosetting plastics, transparent melts.

Standard

• EN: 40 CrMnMo7
• WERKSTOFF Number: 1.2311
• AISI: ≈ P20

Chemical analysis

Typical values (weight%)

C S max P max Si Mn Cr Mo
.4 .005 .012 .3 1.5 1.9 2

Mechanical properties

Hardness Rp 0.2 Yield Strength Rm Tensile Strength Elongation Reduction
of area
K C V 20°C Elastic modulus
HB MPa ksi MPa ksi % Z% J GPa ksi
300 854 124 1014 147 11 50 25 205 29733

Physical properties

Typical value

Thermal conductivity W.m-1.K-1 Thermal expansion Coefficient (10-6.K-1)
20°C 20-100°C 20-200°C 20-300°C 20-400°C Specific heat J/kg. °C
34 11.5 11.6 12.5 12.8 470

Dimensional program

Thickness Width
7 – 150 mm
(.27″ – 5.9″)
1000 – 2500 mm
(39″ – 98.4″)
150 – 610 mm
(5.9″ – 24″)
1000 – 2000 mm
(39″ – 78.7″)

Length: up to 6000 mm (20 ft). For specific dimensions, please contact our sales department.


For more technical details :

 

W 1.2311

Download the complete datasheet


Technical data and information are to the best of our knowledge at the time of publication. However, they may be subjected to some slight variations due to our ongoing research programmes. Therefore, we suggest that information be verified at time of enquiry or order. Furthermore, in service, real conditions are specific for each application. The data presented here are for the purpose of description only, and can be considered as guarantees only when written formal approval has been provided by our company. Industeel reserves the right to change its product range at any time without prior notice.