Bohler-Uddeholm UDDEHOLM ELMAX® Powder Metallurgy Stainless Mold Steel
Categories: Metal; Ferrous Metal; Stainless Steel; Tool Steel; Mold Steel
Material Notes: High chromium-vanadium-molybdenum alloyed steel

A through-hardening corrosion resistant mold steel made by powder metallurgy processing techniques. The high wear resistance makes ELMAX® suitable for long production runs; e.g. electronic parts.

ELMAX® is characterized by:

  • High wear resistance
  • High compressive strength
  • Corrosion resistant
  • Very good dimensional stability
Applications: New types of engineering plastics, with high filler contents, place greater demands on the tooling material, in terms of wear resistance and corrosion resistance. Uddeholm Elmax has been specially developed for high-tech applications. These include products within the electronic industry such as connectors, plugs, switches, resistors, integrated circuits, etc. Uddeholm Elmax can also be used in the food processing industry and for industrial and custom knives, where a combination of corrosion resistance and wear resistance is required
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Physical PropertiesMetricEnglishComments
Density 7.81 g/cc0.282 lb/in³hardened to 58 HRC
 7.67 g/cc
@Temperature 400 °C		0.277 lb/in³
@Temperature 752 °F		hardened to 58 HRC
 7.75 g/cc
@Temperature 200 °C		0.280 lb/in³
@Temperature 392 °F		hardened to 58 HRC
 
Mechanical PropertiesMetricEnglishComments
Hardness, Brinell 250250Soft annealed (Delivery condition)
Hardness, Rockwell C 48 - 6248 - 62tempering temp 210 - 1110°F
Tensile Strength, Yield  1790 MPa
@Strain 0.2 %		260000 psi
@Strain 0.2 %		hardened to 50 RC
 2140 MPa
@Strain 0.2 %		310000 psi
@Strain 0.2 %		hardened to 55 RC
 2310 MPa
@Strain 0.2 %		335000 psi
@Strain 0.2 %		hardened to 60 RC
Modulus of Elasticity 240 GPa34800 ksi(hardened to 58 HRC)
 220 GPa
@Temperature 400 °C		31900 ksi
@Temperature 752 °F		hardened to 58 HRC
 230 GPa
@Temperature 200 °C		33400 ksi
@Temperature 392 °F		hardened to 58 HRC
Compressive Yield Strength 2300 MPa334000 psi0.2%, hardened to 50 RC
 2700 MPa392000 psi0.2%, hardened to 55 RC
 3000 MPa435000 psi0.2%, hardened to 60 RC
 
Thermal PropertiesMetricEnglishComments
CTE, linear  10.8 µm/m-°C
@Temperature 200 °C		6.00 µin/in-°F
@Temperature 392 °F		hardened to 58 HRC
 11.7 µm/m-°C
@Temperature 400 °C		6.50 µin/in-°F
@Temperature 752 °F		hardened to 58 HRC
Specific Heat Capacity 0.460 J/g-°C
@Temperature 20.0 °C		0.110 BTU/lb-°F
@Temperature 68.0 °F		hardened to 58 HRC
Thermal Conductivity  21.0 W/m-K
@Temperature 200 °C		146 BTU-in/hr-ft²-°F
@Temperature 392 °F		hardened to 58 HRC
 23.0 W/m-K
@Temperature 400 °C		160 BTU-in/hr-ft²-°F
@Temperature 752 °F		hardened to 58 HRC
 
Component Elements PropertiesMetricEnglishComments
Carbon, C 1.7 %1.7 %
Chromium, Cr 18 %18 %
Iron, Fe 75.2 %75.2 %as balance
Manganese, Mn 0.30 %0.30 %
Molybdenum, Mo 1.0 %1.0 %
Silicon, Si 0.80 %0.80 %
Vanadium, V 3.0 %3.0 %

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