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BÖHLER W722 AMPO

Precipitation hardening nickel martensitic (marging) steel, material number, which offers a good combination of strength and toughness. Can be printed very easily without additional heating of the building platform or chamber. The achievable hardness of 55 HRC makes this material a universal solution for tool steel applications in which conformal cooling is required, such as die casting applications.

Particle Size Distribution *
Typical Values D10 D50 D90
[μm] 18-24 29-35 42-50

* Measurement of particle size distribution according to ISO 13322-2 (Dynamic image analysis methods);

Apparent density** min. 3.5 g/cm³
** Measurement of apparent density is based on ASTM B964 resp. DIN EN ISO 3923-1 and relates to our typical measured values

Mechanical Properties

With according Heat Treatment
Tensile strength (Rm) (MPa) 1,960 to 2,100
Yield strength (RP₀,₂) (MPa) 1,880 to 2,020
Elongation (%) 4 to 8
Hardness (HRc) 51 to 55
Impact Toughness (ISO-V) (J) 16 to 20

Chemical composition

C ≤ 0.03 Si ≤ 0.10 Mn ≤ 0.15
P ≤ 0.01 S ≤ 0.01 Mo 4.90
Ni 18.00 Co 9.30 Ti 1.10