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EOS StainlessSteel GP1 is stainless steel. Its chemical composition corresponds to US classification 17-4, European 1.4542 and German X5CrNiCuNb16-4. Steel including alloying elements like Cr (15 – 17.5 wt-%) Ni (3 – 5 wt-%) Cu (3 – 5 wt-%) Mn (max. 1 wt-%) Si (max. 1 wt-%) Mo (max. 0.5 wt-%) Nb (0.15 – 0.45 wt-%) C (max. 0.07 wt-%)
EOS StainlessSteel GP1 is pre-alloyed stainless steel in fine powder form. Its composition corresponds to US classification 17-4 and European 1.4542. This kind of steel is characterized by having good corrosion resistance and mechanical properties, especially excellent ductility in laser processed state, and is widely used in a variety of engineering applications.This material is ideal for many part-building applications (DirectPart) such as functional metal prototypes, small series products, individualised products or spare parts.
Typical applications:
– engineering applications including functional prototypes, small series products, individualised products or spare parts.
– parts requiring high corrosion resistance, sterilisability, etc.
– parts requiring particularly high toughness and ductility
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General process and geometric data | |
---|---|
Minimum recommended layer thickness | 20 µm 0.8 mil |
Typical achievable part accuracy
– small parts – large parts |
± 20 – 50 µm 0.8 – 2.0 mil± 0.2 % |
Min. wall thickness | 0.3 – 0.4 mm 0.012 – 0.016 in |
Surface roughness
– after shot-peening – after polishing |
Ra 2.5 – 4.5 µm, Ry 15 – 40 µm Ra 0.1 – 0.2 , Ry 0.6 – 1.6 milRz up to < 0.5 µm (can be very finely polished) |
Volume rate
– standard parameters (20 µm layers, full density – Inner core parameters (Skin & Core style, full density) |
2 mm³/s 0.44 in³/h4 mm³/s 0.88 – 1.1 in³/h |
Physical and chemical properties of parts | |
Material composition | steel including alloying elements Cr (15 – 17.5 wt-%) Ni (3 – 5 wt-%) Cu (3 – 5 wt-%) Mn (max. 1 wt-%) Si (max. 1 wt-%) Mo (max. 0.5 wt-%) Nb (0.15 – 0.45 wt-%) C (max. 0.07 wt-%) |
Relative density with standard parameters | approx. 100 % |
Density with standard parameters | 7.8 g/cm³ 0.28 lb/in³ |
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