Historical iron building materials
and modern metal building materials

determination of tensile strength

• strength investigations at round and flat samples:
  • tensile strength
  • yield point and/or 0,2-strain-limit
  • technical yield strength (0,01-strain-limit)
  • elastic modulus
  • strain at failure
  • equal measure strain

• hardness tests:
  • according to the method Brinell
  • according to the method Vickers
  • according to the method Rockwell B and C
  • light load hardness tests
  • microhardness tests

• compression tests at cast irons:
  • compressive strength
  • elastic modulus
  • notch-bar impact test
  • at ambient temperature, low and high temperatures

• doubling test at round and flat samples
• back bending test at reinforcing steel
• shearing and doubling test at cross samples from reinforcing steel mats
• weldability investigations at building and reinforcing steels
• layer thickness at metallic coats and anodized coats
• metallographic investigations:
  • structure analysis
  • cross section analysis after structure arranging rows
  • liquation investigations (Baumann-mould))

• Scanning electron microscopic investigations::
  • structure analysis with digital image processing
  • slags (kind and composition)