Materials
for demanding applications

FWM™ 1537

FWM™ 1537 is a low carbon, cobalt-chromium-molybdenum alloy. Its high strength, ductility, bioconductivity, wear and corrosion resistance makes this alloy ideal for use within the medical industry. This alloy is also available in coil and straight bar form.

Typical Chemistry
  ASTM F 1537 Alloy 1 (wt%)
Carbon <0.14
Chromium 26-30
Molybdenum 5-7
Nickel <1.0
Iron <0.75
Silicon <1.0
Manganese <1.0
Nitrogen <0.25
Cobalt balance
Typical Mechanical Properties of FWM™ 1537 bar products:
Condition U.T.S. (ksi) Y.S. (ksi) HRC Elongation (%)
Annealed 150-170 80-110 30-35 >25
Hard* 170-195 110-130 ~40 >30

* This material condition is similar to the ASTM condition “warm worked." The properties are similar, but the material is cold worked only. No thermal processing is used to achieve these properties.

  • Coil size range: 0.004” (0.101 mm) – 0.45” (11.43 mm)
  • Straight bars size range: 0.06” (1.52 mm) – 0.4” (10.16 mm)

For more detailed specifications on FWM™ 1537 please click here.

End products
  • Hip and knee replacements
  • Spinal rods and screws