1.2738 (40CrMnNiMo8-6-4) Tool Steel
1.2738 (40CrMnNiMo8-6-4)
1.2738 (40CrMnNiMo8-6-4) steel is a plastic mold steel with the same hardness throughout its entire surface, has a wide range of use in plastic molds due to its mirror-polished feature and machinability.
Manufactured by Dörrenberg Edelstahl.
What is 1.2738 (40CrMnNiMo8-6-4) Steel?
1.2738 (40CrMnNiMo8-6-4) steel is a plastic mold steel with the same hardness throughout its entire surface, has a wide range of use in plastic molds due to its mirror-polished feature and machinability. The difference from 1.2311 and 1.2312 is the addition of nickel. Due to this addition, the ability to shine is better and a mirror-polished surface can be obtained.
1.2738 HH is the variant produced in the higher hardness range (HH-High Hard) of 1.2738. For this reason, it is mainly preferred for molding more abrasive plastics.
What is 1.2738 (40CrMnNiMo8-6-4) Steel Hardness Value?
1.2738 (40CrMnNiMo8-6-4) plastic mold steel reaches a 27-35 Rockwell (HRC) hardness in heat treatment furnaces.
1.2738 (40CrMnNiMo8-6-4) What are Steel Material Properties?
You can review the material properties of 1.2738 (40CrMnNiMo8-6-4) plastic mold steel in the "Technical Details" tab. All mechanical and material properties of 1.2738 (40CrMnNiMo8-6-4) steel are specified in this section.
Where is 1.2738 (40CrMnNiMo8-6-4) Steel Used?
1.2738 (40CrMnNiMo8-6-4) plastic mold steel is used in plastic mold making, automotive and automotive sub-industry, plastic molds of electronic devices. 1.2738 material is used for casting molds and large plastic molds. In addition to these, it is also used in the holders of metal injection molds.
What is 1.2738 (40CrMnNiMo8-6-4) Steel Price?
The price of 1.2738 (40CrMnNiMo8-6-4) material varies based on the product section, dimension, and surface quality. You can access the steel prices through the "Switch to Online Sale" button on the homepage of www.saglammetal.com.
Chemical Composition
Code: 1.2738, MCMN, 40CrMnNiMo8-6-4, P20
Carbon |
Chromium |
Molybdenum |
Manganese |
Nickel |
C |
Cr |
Mo |
Mn |
Ni |
0,40 |
1,90 |
0,20 |
1,50 |
1,00 |
Heat Treatment
|
|
Temperature |
Cooling |
Hardness |
Soft Annealing |
710 - 740 °C |
Furnace |
235 HB |
Stress Relief Annealing |
500 - 550°C |
Furnace |
|
Hardening |
830 - 870°C |
oil or hot bath 180 - 220°C |
see tempering diagram |
Mechanical Properties
Hardness |
30 - 48 |
HRC |
Physical Properties
Thermal Expansion Coefficient |
11,8 - 13,3 |
1/K * 10-6 |
Thermal Conductivity (20°C) |
39,5 |
W/mK |
Density |
7,85 |
g/cm3 |
