ASTM F75 CoCr Alloy chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of ASTM F75 CoCr Alloy

ASTM ASTM F75 CoCr Alloy

Profile

This page is mainly introduced the ASTM F75 CoCr Alloy chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of ASTM F75 CoCr Alloy,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.

ASTM F75 CoCr is a non-magnetic Cobalt Chrome alloy exhibiting high temperature capability, strength, corrosion resistance, wear resistance as well as excellent biocompatibility.

CoCr alloys are widely used within the orthopedics, aerospace, power generation and the dental fields.


Machining

Parts produced using the Arcam EBM process demonstrate excellent machineability using any conventional machining process.

The F75 built material allow polishing to mirror-like finish for use as articulating surfaces in knee implants or other applications requiring superior surface finish.


Microstructure

Manufacturing CoCr parts with F75 results in fully dense parts without weld lines in the material before or after HIP treatment. The images show the typical microstructure after HIP treatment with different magnification. 

There is no porosity in both the horizontal and vertical cross sections

image.png

Horizontal cross section at 50x and 500x magnification


image.png

Vertical cross section at 50x and 500x magnification





  • Steel Garde:ASTM F75 CoCr Alloy
  • Type:Superalloys
  • Country:USA
  • Standard:ASTM
  • Standard Number:
    ITEM Standard Number Descriptions
    1 ASTM F75-2007 CoCr alloys are widely used within the orthopedics, aerospace, power generation and the dental fields.
  • Application:CoCr alloys are widely used within the orthopedics, aerospace, power generation and the dental fields.

Chemical composition(mass fraction)(wt.%)

Elements Min.(≥) Max.(≤) Similar Remarks
C   0.35
Si   0.10
Mn   1.00
P   0.02
S   0.01
Cr 27.00  30.00
Ni   0.50
Mo 5.00  7.00
W   0.20
Co   Bal
B   0.01
Al   0.10
Ti   0.1
Fe   0.75
N   0.25

Mechanical Properties

Tensile strength 292~389 σb/MPa
Yield Strength 128 σ 0.2 ≥/MPa
Elongation 21 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 512~513 -
HRC 30 -

Physical Properties

Thermal expansion 02-99 e-6/K
Thermal conductivity 12-38 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 6052-4378 째C
Density 6214-6426 kg/m3
Resistivity 0.50-0.60 Ohm.mm2/m
     

Heat Treatment Regime

Annealing

Quenching

Tempering

Normalizing

Q & T

Size Availability

Steel Grade Specification Processing range(mm)
ASTM F75 CoCr Alloy Superalloys Round Bar and Hollow Bar Φ1 to Φ2000
Square and Flat Steel Φ10 to Φ100
Plate and Sheet 0.08-800(Thickness)*10-1500(Width)*Length
Tube or Pipe OD:Φ4-410; WT:1-35 mm; Lenght:10-12000
Coil and Strip Steel THK:0.1mm Width:1500mm
Forged Ring/Cylindrical/Disk

Technical specification/standard for download

Hot keywords:F75
Previous: NC20T, NiCr20Ti, N06075, 2.4951, NiCr20Ti
Next: INCONEL® alloy MA 758