Eplus3D Tech Co., Ltd.
Eplus3D Tech Co., Ltd.

Metal 3d printed implants are widely used in orthopedics field, especially artificial joints. The common metal materials involved in medical implants include: 316/316L stainless steel, Ti6Al4V, cobalt-chrome alloy.


316/316L Stainless Steel


Stainless steel is the earliest implant material for human body, especially austenitic stainless steel, which has good biocompatibility and affordable price. It is often used in artificial joint or fracture area fixator, etc. However, the stainless steel is sometimes corrosive in the physiological environment.


Commonly Used Metal 3D Printing Material for Medical Implants


Property

MPBF Technology

Casting

Tensile Strength/Mpa

480-760

450-818

Yield Strength/Mpa

350-640

150-230

Elongation at Break/%

10-30

50-62

Hardness/HV

220-279

133-140


Cobalt-Chrome Alloy


The corrosion resistance and wear resistance of cobalt-chrome alloy are better than that of stainless steel. But its higher price is also a drawback that has to be mentioned. It is mainly used as alternative materials for joints and teeth.


Property

MPBF Technology

Casting

Tensile Strength/Mpa

562-884

296-568

Yield Strength/Mpa

951-1308

296-568

Elongation at Break/%

10.2-16.4

8-10.7

Hardness/HV

458.3-482

324-384.8


Ti6Al4V


Ti6Al4V has been widely used in biomedical fields due to its excellent biocompatibility, corrosion resistance and mechanical strength.

The elastic modulus is closer to bone than that of stainless steel and cobalt-based alloy. It is used to manufacture implants on joints, sternum, skull and interventional cardiovascular stents.


Property

MPBF Technology

Casting

Tensile Strength/Mpa

1250-1267

934-1173

Yield Strength/Mpa

1110-1125

862-999

Elongation at Break/%

6-7

6-7

Hardness/HV

479-613

294-360


With the continuous development of 3d printing technology, there would be more 3d printing materials to be explored ahead. Eplus3D provides accessible 3d printing material for medical implants. Welcome to discuss with us for more information.