ASTM F1537: Application in surgical implants

2024-12-24

Lork Group is a professional manufacturer and exporter of metal material products in China. Expertise in producing Cobalt-28 Chromium-6 Molybdenum Alloy adhering to ASTM F1537 standards has made them a trusted supplier in the medical device industry. Advanced facilities and stringent quality control measures ensure that the alloys meet the highest standards of performance and safety.

ASTM F1537 is a standard specification for Wrought Cobalt-28 Chromium-6 Molybdenum Alloy used in surgical implants. This alloy, known for its exceptional mechanical properties and biocompatibility, plays a crucial role in the medical field. This specification covers the chemical, mechanical, and metallurgical requirements for three wrought cobalt-28chromium-6molybdenum alloys used for surgical implants.

The properties specified apply specifically to wrought bar, rod, and wire. The alloys shall conform to the prescribed chemical requirements. Two tension and two bend tests shall be performed on each sample lot to determine tensile properties. Bar, rod, and wire conforming to this specification shall have a homogeneous microstructure with an average grain size of ASTM No. 5 or finer when measured.

Chemical Range for ASTM F1537 Alloy 1 (UNS R31537)

Element	Minimum	Maximum
Carbon	--	0.14
Chromium	26.0	30.0
Cobalt	Balance	--
Iron	--	0.75
Manganese	--	1.00
Molybdenum	5.00	7.00
Nickel	--	1.00
Nitrogen	--	0.25
Silicon	--	1.00

Typical Mechanical Properties for ASTM 1537

Form	Tensile Strength	Yield Strength	Elongation at Break
Annealed	130 ksi min	75 ksi min	20% min
Hot Worked	145 ksi min	101 ksi min	12% min
Warm Worked	170 ksi min	120 ksi min	12% min

Applications

Our CoCrMo bar stock (F1537 Alloy 1) is primarily used in the medical manufacturing industry, where its high fatigue life is appropriate for repeated movements found in joints like knees and hips. Biocompatibility is similar to titanium, with greater mechanical strength for load bearing applications.

Acetabular Cups
Knee replacements
Hip replacement implants
Shoulder replacement implants
Spinal rods, cages and disc replacement
Fracture fixation

Lork Group is metal material manufacturer and exporter in China

The experts at Lork Group are ready to help you choose the most suitable type of Metal for your .

We have built a reputation as a trusted partner for quality materials, distributing numerous grades of stainless steel,nickel alloy,Precision Alloy andhard-to-find metals. Our raw metal bars, rings, plates, pipes, and tubing are available from stock.

To learn more about the Lork Group metal difference and our material offerings stainless steel and super alloy, contact us or request a quote today.

Inconel 751 is an age hardenable nickel-chromium-iron alloy

Hastelloy C4：Corrosion Resistance Metal Material in Chemical Processing