Cupro NS
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Cupro NSH

Cupro NB

Low alloyed copper alloy.

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Description

Cupro CNB It is a multi-purpose copper alloy that has both the advantages of the physical properties of copper and moderate mechanical properties.
Cupro NB has higher electrical and thermal conductivity altough the areas of use are the same as Cupro CNB

ElectricalFastenersIndustrial
ConductorsFastenersDie casting plunger tips
Connectors, Heavy DutyHigh Flux Electromagnets
Fuse ClipsSprings
Instrument PartsThermal Transfer Plates
Relay PartsWelding Equipment
Switch Parts

COMMON FABRICATION PROCESSES

COMMON FABRICATION PROCESSES

  • Blanking
  • Drilling
  • Forming and Bending
  • Tapping
  • Turning
CHEMICAL COMPOSITION

CHEMICAL COMPOSITION

Elements
Cu(1,2) Fe Ni Al Be Co Si
(1) Cu + Sum of Named Elements 99.5% min.
(2) Cu value includes Ag.
Min (%) 1.4 0.2
Max (%) Rem 0.10 2.2 0.20 0.6 0.3 0.20
MECHANICAL PROPERTIES

MECHANICAL PROPERTIES

Form Temper Temper Code Tensile Strength
(ksi)		 YS-0.2% Offset
(ksi)		 YS-0.5% Ext
(ksi)		 Elongation
(%)		 Rockwell B scale Rockwell 30T scale Fatigue Strength**
(ksi)		 Section Size
(in)
* Measured at room temperature, 68°F (20°C).** Fatigue Strength: 100 x 106 cycles, unless indicated as [N] x 106.
Flat Products 1/2 Hard and Precipitation Heat Treated TH02 115 Typ 108 Typ 8 Typ 98 Typ 81 Typ 35 Typ
Hard and Precipitation Heat Treated TH04 115 Typ 110 Typ 8 Typ 98 Typ 81 Typ
Precipitation Hardened TF00 110 Typ 90 Typ 12 Typ 96 Typ 80 Typ
Solution Heat Treated TB00 45 Typ 25 Typ 28 Typ 32 Typ 36 Typ
Solution Heat Treated and Cold Worked: 1/2 Hard TD02 68 Typ 60 Typ 8 Typ 70 Typ 64 Typ
Solution Heat Treated and Cold Worked: Hard TD04 78 Typ 70 Typ 5 Typ 83 Typ 72 Typ
Forgings Precipitation Hardened TF00 115 Typ 90 Typ 92 Typ 4
Solution Heat Treated TB00 42 Typ 20 Typ 50 Typ
Rod Hard and Precipitation Heat Treated TH04 115 Typ 110 Typ 14 Typ 98 Typ
Precipitation Hardened TF00 110 Typ 90 Typ 18 Typ 96 Typ
Solution Heat Treated TB00 45 Typ 25 Typ 28 Typ 35 Typ
Solution Heat Treated and Cold Worked: Hard TD04 72 Typ 65 Typ 12 Typ 68 Typ
PHYSICAL PROPERTIES

PHYSICAL PROPERTIES

Melting Point – Liquidus°F 1955
Melting Point – Solidus°F 1885
Densitylb/cu in. at 68°F 0.317
Specific Gravity 8.77
Electrical Conductivity% IACS at 68°F 48 (1)
Electrical Conductivity% IACS at 68°F 45 (2)
Thermal ConductivityBtu/ sq ft/ ft hr/ °F at 68°F 120
Coefficient of Thermal Expansion 68-39210 to -6 power per °F (68 – 392°F) 9.8
Specific Heat CapacityBtu/ lb /°F at 68°F 0.1
Modulus of Elasticity in Tensionksi 19200
Modulus of Rigidityksi 7500
FABRICATION PROPERTIES

FABRICATION PROPERTIES

Technique Suitability
Soldering Good
Brazing Good
Oxyacetylene Welding Not Recommended
Gas Shielded Arc Welding Fair
Coated Metal Arc Welding Fair
Spot Weld Good
Seam Weld Fair
Butt Weld Fair
Capacity for Being Cold Worked Excellent
Capacity for Being Hot Formed Good
APPLICABLE SPECIFICATIONS

APPLICABLE SPECIFICATIONS

Form Specific Sub-Form Application System Standard Description
Bar ASTM B441 COPPER-COBALT-BERYLLIUM (UNS NO. C17500) AND COPPER-NICKEL-BERYLLIUM (UNS NO. C17510) ROD AND BAR
ASTM B534 COPPER-COBALT-BERYLLIUM ALLOY, PLATE, SHEET, STRIP, AND ROLLED BAR
Extrusions
Forgings
Forgings & Extrusions ASTM B870 COPPER-BERYLLIUM ALLOY FORGINGS AND EXTRUSION ALLOYS (UNS Nos. C17500 AND C17510)
Heat Exchanger Tube ASTM B944 COPPER-BERYLLIUM WELDED HEAT EXCHANGER AND CONDENSER TUBE UNS No. C175100
Plate ASTM B534 COPPER-COBALT-BERYLLIUM ALLOY, PLATE, SHEET, STRIP, AND ROLLED BAR
Rod SAE J463 WROUGHT COPPER AND COPPER ALLOYS
ASTM B441 COPPER-COBALT-BERYLLIUM (UNS NO. C17500) AND COPPER-NICKEL-BERYLLIUM (UNS NO. C17510) ROD AND BAR
SAE J461 WROUGHT AND CAST COPPER ALLOYS
Seamless Tube ASTM B937 COPPER-BERYLLIUM SEAMLESS TUBE (UNS Nos.17500 and 17510)
Shapes SAE J463 WROUGHT COPPER AND COPPER ALLOYS
SAE J461 WROUGHT AND CAST COPPER ALLOYS
Sheet ASTM B534 COPPER-COBALT-BERYLLIUM ALLOY, PLATE, SHEET, STRIP, AND ROLLED BAR
Strip SAE J461 WROUGHT AND CAST COPPER ALLOYS
ASTM B888/B88M COPPER ALLOY STRIP FOR USE IN MANUFACTURE OF ELECTRICAL CONNECTORS OR SPRING CONTACTS
SAE J463 WROUGHT COPPER AND COPPER ALLOYS
MILITARY MIL-C-81021 COPPER BERYLLIUM ALLOY (COPPER ALLOY NUMBERS C17500 AND C17510) STRIP
ASTM B534 COPPER-COBALT-BERYLLIUM ALLOY, PLATE, SHEET, STRIP, AND ROLLED BAR
Tube SAE J463 WROUGHT COPPER AND COPPER ALLOYS
SAE J461 WROUGHT AND CAST COPPER ALLOYS