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Screws and Nuts

Our screws from high temperature steel (Nickel and Cobalt alloys acc. to EN 10302) and special materials or also from NF- metals like titanium, brass and aluminium, etc.. All materials are harmonized with EN 10269, EN 10272, ISO 898 standards acc. to Pressure Equipment Directive PED 97/23/EC:



DIN / EN - Materials

DIN EN 10269 (DIN 17240 / DIN 17280)

  • 1.1181 - C 35 E , 1.1191 - C 45 E
  • 1.7218 - 25CrMo4 , 1.7709 - 21CrMoV5-7
  • 1.7711 - 40CrMoV4-7 , 1.4923 - X22CrMoV12-1
  • 1.4986 - X7CrNiMoBNb16-16 , 2.4952 - NiCr20TiAl
  • 1.5680 - 12Ni5

DIN EN 10269 / DIN EN 10083

  • 1.7225 - 42CrMo4 , 1.6580 - 30CrNiMo8
  • 1.6582 - 34CrNiMo6STM

ASTM / ASME - Materials

  • ASTM A 193- Grade B6 , B7, B7M, B8, B8M, B16, L7, L7M
  • ASTM A 194- Grade 2H, 2HM, 3, 4, 7, 7M, 8