Material Characteristics

The austenitic stainless steel alloy AISI309 is characterized by a high temperature resistance and strength. The material is scale-resistant up to approx. 1,000 °C and has a good weldability. Due to these properties, the material is mostly used in furnace and apparatus engineering. Additive manufacturing offers a wide range of possibilities with this alloy for functional optimization, for example to build high-performance heat exchangers.

PropertiesUnitAs built 1)
Tensile Strength RmMPa710 ±10
Yield Strength Rp0,2MPa 550 ±20
Elongation at Break A5% 42 ±2
Young‘s Modulus EGPa190 ±5
Charpy Notch Toughness AvJ 95 ±5
Hardness HV225 ±5
  1. The specified material properties were determined at room temperature. They are multidimensionally dependent on many different machine and process parameters. Without further investigation, the material properties do not constitute a sufficient basis for component dimensioning.
  2. Specific heat treatment processes lead to optimized mechanical-technological properties to meet the component requirements.

Chemical Composition

ElementMass Fraction [%]
C≤ 0.20
Si1.50 - 2.50
Mn≤ 2.00
P≤ 0.045
S≤ 0.015
Cr19.0 - 21.0
Ni11.0 - 13.0
N≤ 0.11

Rosswag Engineering offers a holistic and fully integrated process chain for Additive Manufacturing services. Our portfolio ranges from manufacturing of your prototypes, tools and small serial products to an individual consulting and engineering process for the choice of material, parameters and process chain.

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