Molybdenum Products

  • (MHC) Molybdenum Hafnium Carbide  Alloy disc
  • (MHC) Molybdenum Hafnium Carbide  Alloy disc
  • (MHC) Molybdenum Hafnium Carbide  Alloy disc
  • (MHC) Molybdenum Hafnium Carbide  Alloy disc
  • (MHC) Molybdenum Hafnium Carbide  Alloy disc
(MHC) Molybdenum Hafnium Carbide  Alloy disc (MHC) Molybdenum Hafnium Carbide  Alloy disc (MHC) Molybdenum Hafnium Carbide  Alloy disc (MHC) Molybdenum Hafnium Carbide  Alloy disc (MHC) Molybdenum Hafnium Carbide  Alloy disc

(MHC) Molybdenum Hafnium Carbide Alloy disc

  • Place of Origin: Zhuzhou, Hunan
  • Brand Name: Zhenfang
  • Certification: ISO9001:2015
  • Grade: MHC
  • Minimum Order Quantity:10 pcs
  • Price:negotiable
  • Delivery Time:20days
  • Payment Terms:T/T, Wstern uinion, bank
  • Supply Ability:8tons per month

Contact: Ms.Shirley Pan

Email:shirley@chinahardalloy.com

Mobile: +86 17773379950(wechat/whstapp)


We supply our MHC dies in disc form with or without a drilled starter hole.

(MHC) Molybdenum Hafnium Carbide  Alloy sheet

MHC belong to Particle-reinforced molybdenum alloy which contains hafnium and carbon.

The carbon is uniformly distributed along the alloys structure giving it excellent heat and creep resistant properties at elevated temperatures of 1550°C (2822°F). This alloy is able to function under extreme mechanical and thermal loads.

This alloy is manufactured by the process of powder metallurgy. Some of the advantages that this alloy offers are dimensional stability, optimum non-deformability, high thermal stability, no cold brittleness, good hot ductility and very high crystallization temperatures.  MHC is used in metal forming applications, among others. When used in extrusion dies, it is able to withstand extreme thermal and mechanical loads.

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This datasheet will look into the chemical composition, properties and applications of  MHC alloy.

Chemical Composition

ElementContent (%)
Molybdenum, Mo≥98.43
Hafnium, Hf0.80-1.4
Carbon, C0.050-0.15
Iron, Fe≤0.010
Nickel, Ni≤0.0050
Silicon, Si≤0.0050

Mechanical Properties

The mechanical properties of MHC alloy are tabulated below.

PropertiesMetricImperial
Tensile strength(mid-radius)≥689 MPa≥100 ksi
Yield strength(mid-radius)≥586 MPa≥85 ksi
Elongation at Break (mid-radius)≥3%≥3%
Hardness, Vickers≤34≤34

Machinability

MHC alloy is best suited for machining processes such as drilling, lathing and grinding.

Applications

MHC alloy is used in the following applications:

  • Metal forming – making extrusion dies,

  • Extrusion of copper and copper alloys

  • Molten metal processing.


Advantage

Optimum dimensional stability    

Low tendency of crack formation for edged pressed profiles

High high-temperature stability

Good thermal hardness

Low thermal expansion

High thermal conductivity


The best way to machine MHC

Drilling:

  • Carbide ISO HW-K15

  • Point angle: 120 degrees

  • Clearance angle: 10 degrees

  • Cutting speed: 80 m/min (with cutting emulsion)

  • Feed: 0.01 – 0.05 mm

Turning:

  • Carbide ISO HW-K15

  • Rake angle: 25 degrees

  • Clearance angle: 7 degrees

  • Cutting speed: 100 – 150 m/min (with cutting emulsion)

  • Feed: 0.05 - 0.20 mm

  • Cutting depth: up to 3 mm

Grinding:

  • Silicon carbide grinding wheel

  • Speed: 28 m/s

Spark erosion:

  • WCu electrodes

  • Wire eroding possible


If you have any other question about MHC material, please contact me.


Contact: Ms.Shirley Pan

Email:shirley@chinahardalloy.com

Mobile: +86 17773379950(wechat/whstapp)