AMETEK SPECIALTY METAL PRODUCTS - Advanced Metallurgical Products for Critical Applications.

Evanohm® R is a unique resistance alloy with high electrical resistivity and very low temperature coefficient of resistivity (TCR). The alloy is produced by melting and conditioning practices which result in a low level of pinholes at ultra-thin thicknesses. This combination of attributes with inherent corrosion resistance makes it suitable for a variety of strain gauge, foil heaters and airbag igniters. The alloy is supplied with 90% cold reduction which has a positive TCR of about 70 PPM/ºC. A stabilizing heat treatment (approximately 475ºC) during manufacture of finished parts adjusts the TCR to a desired value. The heat treatment virtually eliminates any drift tendency of the resistivity. A heat-treat curve for each melt is developed at Hamilton and is made available as a guide in regulating TCR. Sizes Evanohm® R is available from Hamilton Precision Metals as foil and strip product in thicknesses from 0.0005” to 0.010” (0.0127 mm to 0.254 mm) and in widths up to 12.0”

Unalloyed Tantalum is supplied to ASTM F560 – R05200 composition limits. Tantalum is selected for its corrosion resistance, thermal conductivity, high melting point, and ability to form a dielectric oxide film. Tantalum is very ductile and can be readily cold formed due to a low work hardening rate. Welding can be accomplished via resistance, TIG, or electron beam methods, with care taken to protect the weld and heat affected zone from air during welding. Because of the potential for hydrogen embrittlement, Tantalum can not be used for extended service in air or other oxidizing atmospheres above 260°C unless a protective inert atmosphere or vacuum is provided. Available Sizes: Tantalum is available from Hamilton Precision Metals as strip product from 0.0005” to 0.035” (0.0127 mm to 0.889 mm) in widths up to 12.0” (304.8 mm). The material conforms to UNS R05200 and meets the requirements of ASTM F560 and ASTM B708.

Rodar® is an Iron-Nickel-Cobalt alloy with an unique linear thermal expansion coefficient. It is also stable to cryogenic temperatures. This combination of characteristics has prompted its application in electrical package sealing of glass/metal and ceramic/metal. Rodar® can be formed and deep drawn from the annealed temper. A 1/8 hard temper is optimum for heavy piercing.The material can be joined to other metals by welding, brazing, and soldering. The joint design must consider that Rodar® has a lower expansion coefficient than most other metals. Available Sizes: Rodar® is available from Hamilton Precision Metals as strip product in thicknesses from 0.001” to 0.060” (0.0254 mm to 1.524 mm) and width up to 12.0” (304.8 mm). The material conforms to ASTM F15, AMS 7728 and UNS K94610.

Moly Permalloy® is a Nickel-Iron-Molybdenum alloy with a magnetic permeability that makes it suitable for electrical shielding applications. The alloy can be readily formed from the annealed temper.Effective magnetic shielding is provided by annealing at 1900°F or higher. Joining is accomplished by spot welding or tungsten inert gas welding. Available Sizes: Moly Permalloy® is available from Hamilton Precision Metals as strip product from 0.0005” to 0.015” (0.0127 mm to 0.38 mm) in widths to 12.0” (304.8 mm). It is also available in foil as thin as 0.000100” (0.00254 mm) in widths of 4.0” (101.6 mm) maximum. The metal conforms to ASTM A753, Type 4 and MIL N 14411, Type 1.

AMETEK Specialty Metal Products uses a wrought powder metallurgical process to ensure the highest purity finished products. Our main strengths lie in the processing of Nickel, Iron and Cobalt containing alloys amongst other available materials. The processing of these materials begins with the consolidation of powder through a roll compaction process and followed by a controlled atmosphere sintering. Further reduction of the material is performed solely under cold working temperatures to reduce the introduction of non-metallics and annealing is performed under controlled atmospheres. AMETEK Strip Products are produced in ranges between .002” (0.05mm) and .080” (2.03mm) thicknesses in a full range of tempers and widths to 22” (558.8mm) while maintaining special capabilities to produce materials outside of these ranges for special applications. This process lends itself to the production of small but easily reproducible lots of highly specialized alloys

Our pure nickel strip products are custom-engineered to 99.98% purity for critical battery connector applications. We employ an advanced wrought powder metallurgy process to deliver material with significant advantages in comparison to standard wrought nickel battery strip. Key benefits include: 15-20% higher conductivity than traditional cast nickel strip Consistent chemistry control Standard and custom sizes & tempers Short lead-times and small minimum order sizes Superior surface finish Pure Nickel Strip Grades We offer three high purity nickel alloy strip grades that are mainly used for battery connector applications: Nickel 270 – UNS N02270 (899A) - WNR 2.4050 Nickel 270 strip (899A) is our highest purity material with superior conductivity to cast products and offers the most flexibility in design for cost savings, weight reduction, or increased power.

Precision re-rolled stainless steel strip products can be engineered to specific customer requirements with exceptionally short lead times. Based on our longstanding expertise, we can manufacture stainless steel strip to precise custom sizes, ultra-thin gauges and tightly controlled mechanical properties with any surface finish. We also work closely with Hamilton Precision Metals, part of AMETEK Specialty Metal Products, to produce stainless steel foils down to 1.5 microns (.000060”) thickness. Standard Alloys We manufacture stainless steel strip in a variety of chemical and mechanical properties, expertly engineered to your exacting specifications. High performance stainless steel strip material includes: Austenitic: 300 series Martensitic: 400 series Ferritic: 400 series PH Grades 17-7PH®, 17-4PH® Additional options available on request

We offer two Spinodal alloy grades produced through the same wrought powder metallurgy as copper based products with nickel and tin additions. Our Pfinodal® (C72900) and AM 388® (C72650) spinodal materials deliver similar mechanical properties to Beryllium Copper alloy (C17200) but without the carcinogenic exposure risks. Advantages include: No carcinogenic elements - only copper/nickel/tin Ductile state and heat treatable Electrically conductive Reduced distortion during heat treatment Reduced stress relaxation Safe Alternative to Beryllium Copper (UNS C17200) Recently, Pfinodal® and AM-388® have been chosen as a replacement for Beryllium Copper due to the carcinogenic effects of Beryllium and fears of bans on Beryllium containing products due to REACH, RoHS, and OSHA mandates. Spinodal materials are gaining acceptance in new projects as well as legacy qualifications as manufacturers, OEMs, and consumers reject products

Our titanium strip portfolio includes titanium grade 23 (Ti 6Al-4V ELI) and titanium grade 5 (Ti 6Al-4V). These products are custom-made to exacting specifications and predominantly used for implantable medical devices. We also work in partnership with Hamilton Precision Metals, part of AMETEK Specialty Metal Products, to engineer titanium strip and foil in Ti Grades 1, 2, 4 and 9 down to 1.5 microns (0.000060”) thickness. Titanium Grade 23 Strip (Ti 6Al-4V ELI) Ti 6Al/4V ELI strip is used in medical implant applications owing to its excellent biocompatibility, high strength, and MRI compatibility. Titanium Grade 5 Strip (Ti 6Al-4V) Ti 6Al/4V strip has an excellent combination of strength, corrosion resistance, and fabricability. Consequently, it is used extensively in aerospace, medical, marine, and chemical processing, and surgical implants.

Our Nickel-Iron alloys are engineered to the ASTM F30 standards for sealing materials and their specified coefficients of thermal expansion. These materials are generally used as the sealing material to bridge the difference between two materials of differing expansion rates during heating and to maintain a hermetic seal. These Nickel-Iron Strip Products are generally used in glass to metal sealing applications ranging from light bulbs to hermetically sealed integrated circuits as well as electrical applications such as switch-gear connections and reed switch systems. Nickel Iron alloys include Invar®, alloys 42, 46, 48 and 52. Others available on request.