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Stainless Steel 17-4 PH
As the most common member of the precipitation-hardened class of stainless steels, 17-4 PH is an established engineering material. A variety of heat treatment options are available to increase strength up to over 1400 MPa. 17-4 PH possesses excellent welding and machining characteristics on top of corrosion resistance. This steel sees heavy use in the aerospace, transportation, petrochemical, and food industries. It can be used for structural components, containers, frames, and many other high strength applications.
Stainless Steel 316L
Type 316L is another established structural metal. It is an austenitic stainless steel with low carbon content to limit complications in welding. Despite this, care is still required when welding the end product. Tensile strength is approximately half of 17-4 PH, but elongation at break is substantially larger. Heat treatment does not strengthen 316L. 316L exhibits exceptional resistance to corrosion, especially from chlorides, and maintains its strength even at high temperatures. It’s commonly used in structural applications at high temperatures or in the presence of chlorides.
Like most aluminum alloys, this is a lightweight material with a moderate strength but high strength-to-weight ratio. It is ideal for for applications in the aerospace and automotive industries. It also exhibits much easier machining than steel, and can be built faster as well.
Originally developed to withstand the extreme temperatures and pressure found in turbojet engines, Inconel alloys are the ideal solution to extraordinarily hostile conditions. The aerospace, automotive, and petrochemical industries all have innumerable uses for this superalloy. Specifically, this variant is optimized for superior weldability while maintaining the resistance to high temperature corrosion.
Originally developed to withstand the extreme temperatures and pressure found in turbojet engines, Inconel alloys are the ideal solution to extraordinarily hostile conditions. The aerospace, automotive, and petrochemical industries all have innumerable uses for this superalloy. Specifically, this variant is a strengthened version of the 625 variant, while maintaining its superior weldability and resistance to high temperature corrosion. It does however, experience a drop in elongation compared to its predecessor.
With strength comparable to the strongest of the Inconel 718 series and just over half its density, Ti6AlV4 offers the best strength-to-weight ratio currently available in additive manufacturing. Additionally, this material offers exceptional corrosion resistance and biocompatibility. This combination of properties makes this alloy ideal for high performance structural requirements where weight is a primary concern, such as motor racing and the aerospace industry, as well as biomedical implants.
Cobalt Chrome CoCrMo
CoCrMo is a high performance superalloy intended for dental applications which require a ceramic veneer. It has been optimized for DMLS manufacturing, and exhibits mechanical properties on par with SS 17-4 PH, but with a much lower elongation to failure. Between its high strength and biocompatibility, this material is ideal for dental and biomedical applications which require ceramic interfaces.