PM-Alloys

Powder Metallurgy

Wear- and temperature resistant components made of powdermetallurgical steels, Co-based alloys, super alloys and composite materials.

Compared with the conventional manufacture of materials based on the melting technology, the Powder Metallurgy provides special advantages:

  • Alloys that cannot or can only be produced with enormous difficulties (for example higher carbide content).
  • homogeneous material with no gravity segregation, solidification segregation, phase segregation and with isotropic properties.
  • greater freedom of design of the components.

Industy sector and Products

Steel production and Steel processingRoll rings, guide rollers, cooling bed rollers
Food industryKnives and cutters
Plastic industryTools for extrusion and injection molding
Automotiveand much more

Large selection of materials as well as material combinations, single part production and small series.

Process

  • Use of gas-atomized powder in near-net shaped metal moulds.
  • Hot Isostatic Pressing of the moulds at 1100°C – 1200°C and >1000 bar Bonding of the powders particles by means of the solid body diffusion.
  • Mechanical removal of the moulds and further processing.

Tables of the different grades

[content in wt-%] – some examples

PM-Steels-Alloys (Saramet, SAM)

Alloy% C% Cr% Ni% V% Mo% W% Co% Fe
Saramet (SAM) 91,855,3-9,01,3--bal
Saramet (SAM) 102,455,3-9,81,3--bal
Saramet (SAM) 151,574,0-5,00,512,55,0bal
Saramet (SAM) 231,34,0-3,14,96,0-bal
Saramet (SAM) 262,726Nb:1,53,51,0--bal
Saramet (SAM) 301,284,2-3,15,06,48,5bal
Saramet (SAM) 392,320,0Nb:2,04,51,0--bal
Saramet (SAM) 410,9518,0-0,21,1--bal
Saramet (SAM) 532,454,2-8,03,14,2-bal
Saramet (SAM) 602,34,2-6,57,06,510,5bal
Saramet (SAM) 316L0,0216,510,5-2,1--bal
Saramet (SAM) 44620,0222,05,2-3,0--bal

Applications:

  • High performance cold and hot working high speed steels (Forming-, cutting and pressing tools).
  • Corrosion resistant tools; protection against intercrystalline corrosion.

PM-Superalloys (Saratherm, SAT)

Alloy% C% Cr% Mo% Al% Ti% Co% Ni
Saratherm (SAT) 2-15,005,004,003,5018bal
Saratherm (SAT) 80-20,00-1,602,002bal
Saratherm (SAT) 90-20,00-1,502,5018bal

Applications:

Typical applications for high temperature resistant PM-Superalloys are

  • high performance engine parts.
  • high temperature resistant machine parts of the chemical and petrochemical industry.
  • hot working tools in the diamond grinding disk- and glas industry, etc.

PM-Co-based alloys (Sarastel, SAS)

Alloy% C% Cr% W% Mo% Co
Sarastel (SAS) 12,5032,0013,00-bal
Sarastel (SAS) 61,1028,004,00-bal
Sarastel (SAS) 121,5030,009,00-bal
Sarastel (SAS) 210,3030,00-5,00bal

Applications:

  • Mining tools, cutting tools.
  • Corrosion resisting high temperature engineering parts.
  • Hot working tools.

Saracom

Tailored material properties in tool areas where these are required most:

  • Hardmetal (cemented carbide) – Steel
  • Co-based alloy (SAS) – Steel
  • Superalloy - Steel

Advantages / Service

  • Expert advice for the choice of the material.
  • Common development of the applications with the customer.
  • Production of small series possible.
  • A great number of material combinations (reduction of cost) of steel and tungsten carbide/Saracom).