National Bronze & Metals Inc. C17200 Beryllium Copper Shapes

C17200 Beryllium Copper ASTM B196, AMS 4533, RWMA CLASS IV

Most commonly utilized beryllium copper alloy and is notable for exhibiting the highest strength and hardness compared to commercial copper alloys. Its strength and hardness is similar to that of steel. C17200 ultimate tensile and Rockwell hardness properties in a peak aged condition are in the 200 ksi range and RC 45 respectively (electrical conductivity 22% IACS minimum).
Typical Uses for C17200 Beryllium Copper:

• ELECTRICAL: Electrical Switch and Relay Blades, Fuse Clips, Switch Parts, Relay Parts, Connectors, Spring Connectors, Current Carrying, Contact Bridges, Belleville Washers, Navigational Instruments, Clips
• FASTENERS: Washers, Fasteners, Lock Washers, Retaining Rings, Roll Pins, Screws, Bolts
• INDUSTRIAL: Pumps, Springs, Electrochemical, Shafts, Non Sparking Safety Tools, Flexible Metal Hose, Housings for Instruments, Bearings, Bushings, Valve Seats, Valve Stems, Diaphragms, Springs, Welding Equipment, Rolling Mill Parts, Spline Shafts, Pump Parts, Valves, Bourdon Tubes, Wear Plates on Heavy Equipment, Bellows
• ORDINANCE: Firing Pins
• OTHER: Tools

C17500/C17510 offer a combination of high electrical and thermal conductivity with good strength compared to most copper based alloys. C17500 alloy is the mirror image of alloy C17510 in terms of its properties and characteristics. The alloys differ in that C17500 specifies a cobalt alloying addition (2.40-2.70 %) and alloy 17510 specifies a nickel alloying addition (1.40-2.20 %), but their performance are the same.

C17510 Beryllium Copper ASTM B441 (ROD), ASTM B534 (PLATE) , RWMA Class III

Primarily utilized in applications that require high thermal or electric conductivity. The alloy offers good strength and hardness characteristics coupled with conductivity in the range of 45-60 percent of copper with ultimate tensile and hardness properties approaching 140 ksi and RB 100 respectively.
Typical Uses for C17500 Beryllium Copper:

• ELECTRICAL: Instrument Parts, Connectors, Heavy Duty, Relay Parts, Conductors, Switch Parts, Fuse Clips
• FASTENERS: Washers, Fasteners, Lock Washers, Retaining Rings, Roll Pins, Screws, Bolts
• INDUSTRIAL: High Flux Electromagnets, Thermal Transfer Plates, Welding Equipment, Springs, Die Casting Plunger Tips

C18000 Copper Chromium Nickel Silicon RWMA Class III

Economical high strength, high conductivity copper base alloy. It is a heat treatable copper base alloy and its excellent properties are obtained largely through heat treatment. Its properties combine high hardness, strength and wear resistance with relatively high electrical and thermal conductivity.
Typical Uses for C18000 Copper Chromium Nickel Silicon:

• INDUSTRIAL: Resistance Welding Tips, Resistance Welding Wheels and Fixtures, Stud Welding Collets and Tips, Sprue Bushing, Cavities for Injection Molds, Hot runner Systems for Injection Molds, Welding Dies for Wire and Flash, Blow Pins, Pinch Offs, Mold Cavities for Bold Molds, Blow Pins, Pinch Offs, Mold Cavities for Bold Molds, Cores, Core & Ejector Pins for Injection Molds, Plunger Tips for Metal Die Casting Machines, Heat Sink Inserts in Steel Plastic Molds

C31400 Leaded Commercial Bronze ASTM B140

Leaded Commercial Bronze C31400 combines the natural corrosion resistance of C22000 with the machinability typical of leaded brasses. Like C22000, it is an alpha brass nominally composed of 89% copper and 9% zinc, but it also contains approximately 2% lead to impart free-cutting characteristics. The relatively low zinc content of C31400 provides excellent corrosion resistance in potable water along with a pleasing golden color that matches C22000 hardware. Alloy C31400 is also suitable for outdoor use due to its resistance to stress corrosion cracking and to corrosion in general, but where the highest strength is not required.
Typical Uses for C31400 Leaded Commercial Bronze:

• BUILDERS HARDWARE: Door Knobs
• ELECTRICAL: Connectors for Wire and Cable, Electrical Plug Type Connectors
• FASTENERS: Screws, Nuts
• INDUSTRIAL: Pickling Fixtures, Pickling Racks, Pickling Crates, Screw Machine Parts

C31600 Nickel Leaded Commercial Bronze ASTM B140

Nickel Bearing C31600 is composed of approximately 89% copper, 8% zinc, and 2% lead, but also contains 1% nickel. This alloy combines the natural corrosion resistance and machinability of C31400 with a higher tensile and yield strength resulting from the controlled addition of nickel. The relatively low zinc content provides excellent corrosion resistance in potable water along with a pleasing golden color that matches C22000 hardware. It also possesses a particular resistance to stress corrosion cracking. It is an alloy suitable for outdoor use where higher strength is required.
Typical Uses for C31600 Nickel Leaded Commercial Bronze:

• BUILDERS HARDWARE: Hardware
• ELECTRICAL: Connectors
• FASTENERS: Fasteners, Nuts, Screws
• INDUSTRIAL: Screw Machine Parts

C36000 Free Machining Brass / Free Cutting Brass

C36000 Free Machining Brass / Free Cutting Brass is ideally suited for high speed machining operations with its superior machinability, thread rolling and knurling characteristics. Its machinability rating of 100 is standard against which all other copper alloys are rated. It is easily soldered or brazed and has good resistance to corrosion.
Typical Uses for C36000 Free Machining Brass / Free Cutting Brass:

• ARCHITECTURE: Terrazzo Strip
• AUTOMOTIVE: Sensor Bodies, Threaded Inserts for Plastic, Fluid Connectors, Thermostat Parts
• BUILDERS HARDWARE: Lock Bodies, Hardware, Fittings
• CONSUMER: Hot Combs (to Straighten Hair)
• FASTENERS: Bolts, Nuts, Screws
• INDUSTRIAL: Faucet Components, Pneumatic Fittings, Fluid Connectors, Automatic Screw Machine Parts, Unions, Adapters, Screw Machine Products, Gauges, Valve Seats, Valve Trim, Valve Stems, Nozzles, Pinions, Gears
• PLUMBING: Plumbers' Brass Goods, Faucet Stems, Faucet Seats, Plumbing Fittings

C46400 Naval Brass "Lead Free"

Naval Brass C46400 is nominally composed of 60% copper, 39.2% zinc and 0.8% tin. As is typical of brass alloys with the duplex alpha + beta structure, C46400 has good strength and rigidity. By substituting tin for an equal quantity of zinc, a high corrosion resistance to seawater is achieved. The addition of tin also gives the alloy an inherent resistance to dezincification, thereby further inhibiting the impingement by seawater at higher than normal temperatures. The alloy is also noted for its resistance to wear, fatigue, galling, and stress corrosion cracking.
Typical Uses for C46400 Naval Brass "Lead Free":

• BUILDERS HARDWARE: Lock Pins
• ELECTRICAL: Precision Shipboard Equipment
• FASTENERS: Rivets, Bolts, Nuts
• INDUSTRIAL: Welding Rod, Condenser Plates, Structural Uses, Valve Stems, Balls, Heat Exchanger Tube, Aircraft Turn Buckle Barrels, Bearings, Dies, Golf Ball Production, Pressure Vessels, Bearings, Bushings, Hub Cones
• MARINE: Properller Shafts, Marine Hardware, Decorative Fittings, Shafting, Propeller Shafts, Turn buckles
• ORDINANCE: Missle Components
• OTHER: Baffle Plates and Flanges
• PLUMBING: Fittings

C51000 Phosphor Bronze "5% A" ASTM B139, QQ-B750

C51000 Phosphor Bronze alloy possess a higher yield strength than is readily available in most cast products. Typical applications for phosphor bronze include bearings, bushings, gears, pinions, shafts, thrust washers and valve parts. C51000 Phosphor bronze can be readily brazed or soldered. Capacity for being cold worked is good.

Typical Uses for C51000 Phosphor Bronze "5% A":

• ARCHITECTURE: Bridge Bearing Plates
• ELECTRICAL: Switch Parts, Electromechanical Spring Components, Resistance Wire, Electrical Flexing Contact Blades, Electrical Connectors, Electronic Connectors, Wire Brushes, Electronic and Precision Instrument Parts, Fuse Clips
• FASTENERS: Lock Washers, Fasteners, Cotter Pins
• INDUSTRIAL: Bellows, Textile Machinery, Perforated Sheets, Chemical Hardware, Truss Wire, Springs, Sleeve Bushings, Diaphragms, Clutch Disks, Bourdon Tubes, Beater Bar, Welding Rods, Pressure Responsive Elements

C52400 Phosphor Bronze "10% D" ASTM B139, QQ-B750

Typical Uses for C52400 Phosphor Bronze "10% D":

• INDUSTRIAL: Heavy Bars and Plates, Fittings, Expansion Plates for Bridges

C54400 Phosphor Bronze "B-2" "Free Cutting" ASTM B139, ASTM B140, QQ-B-750

C54400 Phosphor Bronze is the finest bearing alloy that the industry has to offer. It is an extremely machinable alloy that is equalled by few in the wrought metal industry as a bearing alloy. When annealed, this metal can be bent, formed, blanked, and stamped.
Typical Uses for C54400 Phosphor Bronze "B-2" "Free Cutting":

• ELECTRICAL: Electrical Connectors
• INDUSTRIAL: Bushings, Gears, Pinions, Shafts, Valve Parts, Sleeve Bearings, Thrust Bearings, Screw Machine Products, Bearings, Thrust Washers

C63000 Nickel Aluminum Bronze AMS 4640

C63000 (AMS 4640) Nickel Aluminum Bronze alloy is an excellent choice for applications involving heavy loads, abrasive wear resistant, friction, abrasive wear and corrosion. The addition of nickel increases the alloys strength without diminishing its excellent ductility, toughness and corrosion resistance. Typical applications for C63000 nickel aluminum bronze included aircraft landing gear components, strut bearings, main pistons, trunnion bearings and similar vital components.
Typical Uses for C63000 Nickel Aluminum Bronze:

• INDUSTRIAL: Hydraulic Bushings for Earth Moving Equipment, Corrosion Resistant Articles, Bushings, Bearings, Heat Exchanger Flanges, Heat Exchanger Headers, Tanks, Valve Balls, Structural Members, Pump Shafts, Aircraft Parts, Valve Guides, Plunger Tips, Welded Piping Systems, Balls, Gears, Cams, Pump Parts, Shafting, Condenser Tube for Power Stations and Desalting Units, Valve Seats
• MARINE: Pump Parts, Bolts, Nuts, Propellers, Ship Propellers
• PLUMBING: Faucets

C63020 Nickel Aluminum Bronze AMS 4590

High ductility, high electrical and thermal conductivity, high impact strength, good creep resistance, ease of welding, and low volatility under high vacuum.

A special heat treatment process improves the mechanical properties beyond the range of commercial aluminum bronzes. This alloy is an extra high strength version of nickel aluminum bronze. It is used where parts require extra high strength and hardness with some ductility and toughness. Typical applications include rock bit bearing bushings and washers involving heavy loads, abrasion and high deformation. The extra high strength characteristics provide extreme wear resistance for extreme loads, abrasive wear, such as BOP parts, and wellhead compone

Typical Uses for C63020 Nickel Aluminum Bronze:

• INDUSTRIAL: Bearings, Bushings, Valve Balls, Forming Dies for Roll Bearings, Hydraulic Bushings for Earth Moving Equipment, Valve Parts - Cryogenic

C70600 Copper Nickel "90/10" ASTM B151, MIL C15726F

C70600 & C71500, Copper nickel offers excellent corrosion resistance, especially in marine salt water environments. The main, wrought copper-nickel alloys chosen for sea water service contain 10 or 30 percent nickel. They also have important additions of iron and manganese which are necessary to maintain good corrosion resistance. Some common applications for copper nickel include: valves, pump components, fittings, flanges and various other marine hardware components.

Typical Uses for C70600 Copper Nickel "90/10":

• AUTOMOTIVE: Power Steering Tube, Brake Lines
• CONSUMER: Screw Lamp Bases
• INDUSTRIAL: Condenser Plates, Condensers, Weld Torch Tips, Heat Exchanger Tubes, Valve Bodies, Evaporator Tubes, Pressure Vessels, Distiller Tubes, Pump Impellers for Oil Refining, Ferrules, Evaporators
• MARINE: Boat Hulls, Tube Sheet for Salt Water Service, Salt Water Pipe Fittings, Salt Water Piping Systems, Salt Water Piling Wrap, Hot Water Tanks, Salt Water Baffles, Propeller Sleeves, Ship Hulls, Water Hoses
• PLUMBING: Flanges

C71500 Copper Nickel "70/30" ASTM B151, MIL C15726F

C70600 & C71500, Copper nickel offers excellent corrosion resistance, especially in marine salt water environments. The main, wrought copper-nickel alloys chosen for sea water service contain 10 or 30 percent nickel. They also have important additions of iron and manganese which are necessary to maintain good corrosion resistance. Some common applications for copper nickel include: valves, pump components, fittings, flanges and various other marine hardware components.
Typical Uses for C71500 Copper Nickel "70/30":

• INDUSTRIAL: Pump Impellers, Heat Exchanger Tubes, Evaporator Tubes, Distiller Tubes, Condenser Plates, Refrigerators, Process Equipment, Condenser Components, Ferrules, Welding Backing Rings, Flexible Metal Hose, Weld Wire, Boiler Parts, Condensers, Propeller Sleeves, Heat Exchanger Components
• MARINE: Salt Water Flanges, Salt Water Piping, Valve Bodies, Sea Water Service, Fittings, Sea Water Condensers, Salt Water Pipe Fittings, Water Boxes - Salt Water Applications, Pump Bodies and Internal Parts-Sea Water

C90500 Tin Bronze "SAE 62"" ASTM B187, ASTM B152, SAE 62

Typical Uses for C90500 Tin Bronze "SAE 62":

• BUILDERS HARDWARE: Clamps
• BUILDING: Heavy Construction Equipment
• ELECTRICAL: Connectors
• FASTENERS: Nuts
• INDUSTRIAL: Pump Bodies, Valves, Gears, Piston Rings, Pump Impellers, Bushings, Bearings, Worm Gears, Expansion Bearings, Gear Blanks, Finishing Dies for Wood Pulp Industry, Valve Bodies, Seal Rings
• PLUMBING: Water Conditioners, Steam Fittings

C90700 Tin Bronze "SAE 65" ASTM B505, SAE 65

Castings for bearings, bushings and gears available in continuous cast bar, tube and plate. CDA 907 bronze solid round bars available from stock.
Typical Uses for C90700 Tin Bronze "SAE 65":

• INDUSTRIAL: Bearings, Worm Wheels, Gears, Bearings for Heavy Loads and Relatively Low Speeds, Restaurant Equipment, Gear Boxes, Speed Reducers, Valve Bodies, Worm Gears

C93200 High Leaded Tin Bronze / Bearing Bronze CDA 932, SAE 660

C93200 High Leaded Tin Bronze / Bearing Bronze has excellent machining properties, good hardness, strength and wear resistance with excellent antifriction qualities. The alloy is not subject to dezincification and has reasonable corrosion resistance to seawater and brine making it suitable for pump and valve components.
C93200 is suitable for bearings, bushings having medium loads and speeds with adequate lubrications.
Typical Uses for C93200 High Leaded Tin Bronze / Bearing Bronze:

• AUTOMOTIVE: Automotive Fittings
• FASTENERS: Washers
• INDUSTRIAL: Thrust Washers, Pumps, Bushings, Machine Parts, Main Spindle Bearings, Machine Tool Bearings, Bearings for Cranes, Trunion Bearings, Roll Neck Bearings, Rolling Mill Bearings, Linkage Bushings for Presses, Fuel Pump Bushings, Water Pump Bushings, Diesel Engine Wrist Pin Bushings, Forging Press Toggle Lever Bearings, Hydraulic Press Stuffing Box, Hydraulic Press Main Lining, Pump Impellers, General Purpose Bushings, Fittings, Pump Fixtures, Insert Bearings, Bearing

C93700 High Leaded Tin Bronze "SAE 64" ASTM B505, SAE 648

C93700 has excellent machining properties, medium strength and good corrosion resistance and will withstand mild acids as found in mine water. Bearings manufactured from C93700 have excellent wear resistance under conditions of high speed, heavy pressure and vibration, have low friction and can be used where lubrication is less than adequate and there may be minor misalignment. C93700 bearings require a hardened shaft and maximum shaft surface speeds of 4 m/sec can be tolerated.

Typical Uses for C93700 High Leaded Tin Bronze "SAE 64":

• BUILDERS HARDWARE: Brackets
• FASTENERS: Washers for Engines, Nuts
• INDUSTRIAL: Crank Shafts, Bushings, Machine Parts, High Speed, Heavy Load Bearings, Pumps, Pressure Tight Castings, Impellers, Corrosion Resistant Castings, Bushings for high speed and heavy pressure., Applications Requiring Acid Resistance to Sulphite Fluids, Bearings, Bearing Plates, Parts for Steel Mill Maintenance, Slide Guides for Steel Mills
• MARINE: Large Bearings for Ships

C95400 Aluminum Bronze ASTM B505

C95400 Aluminum Bronze is the most popular, all purpose aluminum bronze alloy. It provides high yield and tensile strength, good ductility, weldability and exceptional resistance to wear, fatigue and deformation under shock or overload. Typical applications include bearings, gears, valve components, wearplate and wearstrip. Conforms to continuous cast specification ASTM B505 and centrifugal cast specification ASTM B271.

Typical Uses for C95400 Aluminum Bronze:

• AUTOMOTIVE: Weld Guns
• FASTENERS: Nuts, Large Hold Down Screws
• INDUSTRIAL: Pickling Hooks, Bearings, Pawl, Worm Gears, Machine Parts, Spur Gears, Heavily Loaded Worm Gears, Pump Parts, Landing Gear Parts, Valve Bodies, Valve Guides, Valve Seats, Bearing Segments for the Steel Industry, Pressure Blocks for the Steel Industry, High Strength Clamps, Bushings, Valves, Gears
• MARINE: Ship Building, Covers for Marine Hardware
• ORDINANCE: Government Fittings

C95500 Nickel Aluminum Bronze "9D" ASTM B505

Typical Uses for C95500 Nickel Aluminum Bronze "9D":

• BUILDERS HARDWARE: Window Hardware
• CONSUMER: Piano Keys, Musical Instruments
• ELECTRICAL: Electrical Hardware
• FASTENERS: Stuffing Box Nuts
• INDUSTRIAL: Pickling Equipment, Valve Guides, Piston Guides, Valve Seats, Pump Fluid Ends, Glands, Worms, Worms Wheels, Hot Mill Guides, Hand Gun Recoil Mechanisms, Landing Gear Parts, Air Craft Components, Wear Plates, Welding Jaws, Landing Gear Parts, Glass Molds, Machine Parts, Sewage Treatment Applications, Valve Components, Bearings, Bushings, Valve Bodies, Gears
• MARINE: Marine Applications, Covers for Marine Hardware, Ship Building, Marine Hardware
• ORDINANCE: Government Fittings

Forms Available

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