Terminals and Headers

1. Body materials

• Cold rolled steel – lowest cost per unit weight of material
• Kovar – when metal webbing is insufficient to support compression seals
• 300 series Stainless steel – non-magnetic; corrosion resistant properties; welding compatibility to Stainless assemblies
• Tensile strength; corrosion resistant; non-magnetic; excellent option for high pressure operating environments
• Hymu 80 – tensile strength; corrosion resistance; non-magnetic; welding compatibility to Nickel based assemblies
• Titanium (Ti6Al4V & CP) – light-weight; non-magnetic; tensile strength; chemical resistant in specific applications; bio-compatible; welding compatibility to Ti
• 17-4 PH - tensile strength; not directly sealed with glass due to phase transformation temperature but suitable for attachment by welding of Inconel glass-to-metal-seals(GTMS)

2. Contact materials

• Alloy 52 for compression seals; flexibility on termination features – capable of having wire bond features formed into the contact
• Copper cored Alloy 52 – better electrical conductivity
• Kovar – for matched seals; flexibility of termination features
• 446 Stainless steel – weldable and corrosion resistant
• Molybdenum – weldable; chemical resistant
• Tantalum – weldable; chemical resistant
• Inconel non-magnetic
• Copper electrical conductivity; not directly sealed with glass but mechanically attached to intermediate sleeve