Cupro NSS
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Cap Welding Electrodes

Cupro Z

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Description

This is a copper alloy with high electrical conductivity.

When alloyed with chromium and zirconium, wear resistance increases.

Wires can be shaped by erosion.

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Pencil-type & Light Soldering Guns: Tips, Rod ExtensionsCircuit Breaker SwitchesConnectors, Solderless Wrapped
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Stud Bases for Power Transmitters & Rectifiers
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COMMON FABRICATION PROCESSES

COMMON FABRICATION PROCESSES

  • Bending
  • heading
  • Hot forging
  • Machining
  • Swaging
CHEMICAL COMPOSITION

CHEMICAL COMPOSITION

Elements
Cu(1,2) Zr
(1) Cu value includes Ag.
(2) Cu + Sum of Named Elements 99.9% min.
Min (%) 0.10
Max (%) Rem 0.20
MECHANICAL PROPERTIES

MECHANICAL PROPERTIES

Form Temper Temper Code Tensile Strength
(ksi)		 YS-0.5% Ext
(ksi)		 Elongation
(%)		 Rockwell B scale Rockwell F scale Section Size
(in)		 Cold Work
(%)
* Measured at room temperature, 68°F (20°C).
Rod & Bar 1/4 Hard and Precipitation Heat Treated TH01 48 Typ 40 Typ 28 Typ 57 Typ 0.50 – 1.0 20
Hard and Precipitation Heat Treated TH04 60 Typ 53 Typ 24 Typ 71 Typ 0.50 – 1.0 60
Precipitation Hardened TF00 30 Typ 13 Typ 51 Typ 6 Typ 0.50 – 1.0
Solution Heat Treated TB00 29 Typ 6 Typ 54 Typ 0.50 – 1.0
Solution Heat Treated and Cold Worked: 1/2 Hard TD02 49 Typ 47 Typ 20 Typ 0.50 – 1.0 40
Solution Heat Treated and Cold Worked: Hard TD04 57 Typ 51 Typ 19 Typ 0.50 – 1.0 60
Wire 1/2 Hard and Precipitation Heat Treated TH02 53 Typ 49 Typ 23 Typ 90 Typ 0.5 30
Annealed O61 37 Typ 11 Typ 50 Typ 40 Typ 0.25
Hard and Precipitation Heat Treated TH04 76 Typ 72 Typ 1.5 Typ 0.04 98
Hard and Precipitation Heat Treated TH04 72 Typ 68 Typ 3 Typ 0.09 92
Precipitation Hardened TF00 30 Typ 13 Typ 49 Typ 0.09 0
Solution Heat Treated TB00 29 Typ 6 Typ 54 Typ 0.09 0
PHYSICAL PROPERTIES

PHYSICAL PROPERTIES

Melting Point – Liquidus°F 1976
Melting Point – Solidus°F 1796
Densitylb/cu in. at 68°F 0.321
Specific Gravity 8.89
Electrical Conductivity% IACS at 68°F 90 (1)
Thermal ConductivityBtu/ sq ft/ ft hr/ °F at 68°F 212
Coefficient of Thermal Expansion 68-21210 to -6 power per °F (68 – 212°F) 9.4
Coefficient of Thermal Expansion 68-57210 to -6 power per °F (68 – 572°F) 9.8
Specific Heat CapacityBtu/ lb /°F at 68°F 0.092
Modulus of Elasticity in Tensionksi 18700
FABRICATION PROPERTIES

FABRICATION PROPERTIES

Technique Suitability
Soldering Excellent
Brazing Good
Oxyacetylene Welding Not Recommended
Gas Shielded Arc Welding Not Recommended
Coated Metal Arc Welding Not Recommended
Spot Weld Not Recommended
Seam Weld Not Recommended
Butt Weld Good
Capacity for Being Cold Worked Excellent
Capacity for Being Hot Formed Excellent
Machinability Rating 20
APPLICABLE SPECIFICATIONS

APPLICABLE SPECIFICATIONS

Form Specific Sub-Form Application System Standard Description
ASTM B224 Standard Classification of Coppers
Bar ASTM B150/B150M ALUMINUM BRONZE ROD, BAR AND SHAPES
Rod SAE J463 WROUGHT COPPER AND COPPER ALLOYS
ASTM B150/B150M ALUMINUM BRONZE ROD, BAR AND SHAPES
SAE J461 WROUGHT AND CAST COPPER ALLOYS