Copper and copper alloys - Import export

Our highly specialized Spinodal materials are custom-engineered for electronic connectors and deliver major advantages in comparison to traditional materials such as Beryllium Copper (BeCu). We offer precision strip and wire products in alloy Pfinodal® (UNS C72900), a copper nickel tin Spinodal alloy, for the manufacturing of high performance electronic connectors in the electronics industry. Safe Alternative to Beryllium Copper (BeCu) Beryllium Copper (BeCu) materials are the historical choice for electronic connectors. Our high performance Pfinodal® (UNS C72900) delivers similar mechanical properties to Beryllium Copper but without the harmful exposure risks.

Our Spinodal materials are custom-engineered for safety hand tools that are non-sparking, non-magnetic and highly corrosion resistant. They benefit from age hardening techniques that further increase their strength and hardness for high performance safety tools. Alloys AM 388™ (UNS C72650) is a copper based Spinodal alloy that offers non-sparking, non-magnetic and high strength properties. AM 388™ is accepted as a safe replacement material for Beryllium Copper alloy. Safety Tool Applications Engineered for an array of hand-held non-sparking safety tools including: Corrosion resistant wrenches Hammers, axes and picks Corrosion resistant screwdrivers, pliers and spatulas

We manufacture bar and tube products in our corrosion resistant Spinodal alloy, Pfinodal® (C72900), for use in downhole housings, centralizers, and joints that operate in demanding subsea environments. Advantages Our Copper nickel tin Pfinodal® (C72900) bar and tube products present a combination of unique properties that deliver significant advantages for downhole oil and gas applications. Non-sparking and non-magnetic Anti-galling Anti-corrosive Heat treatable to high hardness Safe alternative to Beryllium Copper (BeCu) Pfinodal ® (C72900) Bar and Tube C72900 copper alloy materials are available in bar and tube sizes up to 6” (152.4mm) diameters as well as in both strip and plate products. Our C72900 material is generally provided as machining bar in the aged condition with many sizes available to ship from inventory. We also offer the ability to provide turnkey solutions by providing fully machined parts to OEM drawings.

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

Beryllium Copper 25 is a Copper base alloy with the capability of being strengthened by precipitation heat treatment. The alloy furnishes the best combination of electrical conductivity, corrosion resistance and mechanical strength necessary for numerous electronic and electromechanical devices. The alloy is quite satisfactory for fabrication with good formability and joining characteristics. Forming is readily accomplished from the annealed temper. Severe bending will be less successful from hard or heat treated tempers and requires large fold radius ratios. Beryllium Copper 25 is able to be soldered, brazed, and welded by most standard techniques. The brazing temperature must be kept under 1450º F and cycle time minimized to avoid loss of heat treated strength. Heat treating should be performed subsequent to welding to obtain uniform high strength. The alloy is not susceptible to an increase in magnetic attraction from plastic deformation during service

Cu-Ni 715 is a copper-nickel alloy that is resistant to corrosion in sea water. The alloy has good fatigue strength and relatively high thermal conductivity. This alloy is used mainly for flexible metal foil heaters. The alloy is readily formed in the annealed temper, and can be joined by the standard welding, brazing and soldering processes. Available Sizes: Cu-Ni 715 is available from Hamilton Precision Metals as strip product in thicknesses from 0.0005” to 0.010” (0.0127 mm to 0.254 mm) in widths up to 12” (304.8 mm). The material conforms to ASTM B122 and UNS C71500.

Phosphor Bronze A is a Copper base spring material with a good combination of strength, formability, and corrosion resistance. The material is suitable for use in certain contact springs and diaphragms. The alloy has good formability up to moderate strength. It can be soldered, silver brazed, and resistance welded. Available Sizes: Phosphor Bronze A is available from Hamilton Precision Metals as strip products in thicknesses from 0.001” to 0.020” (0.0254 mm to 0.508 mm) in widths up to 12.0” (304.8 mm). The material conforms to ASTM B 103 and UNS C51000.

HPM® 400 is a Nickel-Copper alloy with excellent corrosion resistant characteristics in marine environments. The alloy is readily formed from the annealed temper. It is easy to fabricate by conventional welding techniques. Available Sizes: HPM® 400 is available from Hamilton Precision Metals as strip product in thicknesses from 0.0005” to 0.050” (0.0127 mm to 1.27 mm) and widths up to 12.0” (304.8 mm). The material conforms to ASTM B127 and UNS N04400.

Constantan® is a copper-nickel alloy that contains specific minor amounts of additional elements to achieve precise values for the temperature coefficient of resistivity. Careful control of melting and conversion practices results in a very low level of pinholes at ultra-thin thicknesses. The alloy is used extensively for foil resistors and strain gauges. The TCR can be adjusted from the furnished cold rolled values by using a low temperature heat treatment to achieve compensation for all types of spring elements. The foil is normally supplied with 90% cold reduction and a smooth bright surface. The foil is reasonably flat at 4” wide and nearly free of pinholes. The cold rolled foil can be produced with a TCR between +10 to –35 PPM/°C. The heat treatment will shift the foil TCR to the desired value. A typical heat-treat curve for Constantan® shows decreasing resistivity but increasing TCR with increased heat-treating temperature.

Copper alloys exhibit very high electrical and thermal conductivities, offering twice the conductivity of aluminum and thirty times the conductivity of stainless steel. Other advantageous characteristics include outstanding strength (notably copper beryllium alloys) and corrosion resistance as well as antimicrobial properties. Copper is most commonly used in electrical and electronic applications.

Our Spinodal strip materials in Copper-Nickel-Tin alloys offer high ductility for forming into shaped charge liner material for the perforation of oil and gas well liners. Shaped Charge Liner Material Advantages The Spinodal material is produced through our wrought powder compaction process which imparts properties allowing the material to virtually ‘disappear’ upon activating the charge. The material is well suited to “big hole” applications for perforating charges and leaves little residue (commonly referred to as ‘carrots’ or ‘slugs’). Pfinodal® (C72900) and AM-388™ (UNS C72650) We produce two spinodal alloys for these shaped charge applications - Pfinodal® (C72900) copper alloy and AM-388™ (UNS C72650). They benefit from age hardening techniques that further increase their strength and hardness required for deep hole penetration applications. These spinodal materials deliver superior mechanical and physical properties in comparison

Copper 102 is an oxygen-free copper with extremely high electrical conductivity and good formability. These characteristics make it particularly useful for electrical connectors. Copper 102 can be deep-drawn from the annealed temper.It is corrosion resistant in normal atmosphere and water. A thin adherent oxide film forms at elevated temperatures which prevents particle contamination and enhances glass to metal seals. The Copper 102 can be readily soldered and brazed. The absence of oxygen makes welds free of inclusions. Available Sizes: Copper 102 is available from Hamilton Precision Metals as strip product in thicknesses from 0.0005” to 0.010” (0.0127 mm to 0.254 mm) in widths up to 12.0” (304.8 mm). The material conforms to ASTM B 152 and UNS C10200. It is also available in thickness less than 0.0005” (0.0127 mm) in widths up to 4.000” (101.6 mm) maximum.