Cupro MAX

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.

Consumer	Electrical	Industrial
Pencil-type & Light Soldering Guns: Tips, Rod Extensions	Resistance welding electrodes	Welding Electrodes
		Welding Wheels, Tips and Rod Extensions

COMMON FABRICATION PROCESSES

CHEMICAL COMPOSITION

Chemical Composition
	Elements
	Cu^(1,2)	Cr	Zr
(1) Cu + Sum of Named Elements 99.7% min. (2) Cu value includes Ag.
Min (%)		0.50	0.02
Max (%)	Rem	1.5	0.20

MECHANICAL PROPERTIES

Form	Temper	Temper Code	Tensile Strength (ksi)	YS-0.5% Ext (ksi)	Elongation (%)	Rockwell B scale	Section Size (in)
* Measured at room temperature, 68°F (20°C).
Rod	Precipitation Heat Treated or Spinodal Heat Treated and Hard	TL04	81 Typ	79 Typ	14 Typ	82 Typ	0.485
	Precipitation Heat Treated or Spinodal Heat Treated and Hard	TL04	79 Typ	75 Typ	16 Typ	78 Typ	0.75
	Spinodal Hardened-Low Strength (ATLS)	TX00	65 Min	55 Min	13 Min	75 Min	1.0
Wire	Precipitation Heat Treated or Spinodal Heat Treated and 1/2 Hard	TL02	68 Typ	58 Typ	19 Typ	75 Typ	0.60
	Precipitation Heat Treated or Spinodal Heat Treated and 1/2 Hard	TL02	69 Typ	49 Typ	15 Typ	76 Typ	0.70
	Precipitation Heat Treated or Spinodal Heat Treated and Hard	TL04	68 Typ	66 Typ	15 Typ	73 Typ	0.50
	Precipitation Heat Treated or Spinodal Heat Treated and Hard	TL04	68 Typ	63 Typ	20 Typ	74 Typ	0.60

PHYSICAL PROPERTIES

Melting Point – Liquidus°F	1976
Melting Point – Solidus°F	1958
Densitylb/cu in. at 68°F	0.321
Specific Gravity	8.89
Electrical Conductivity% IACS at 68°F	80
Thermal ConductivityBtu/ sq ft/ ft hr/ °F at 68°F	187
Coefficient of Thermal Expansion 68-21210 to -6 power per °F (68 – 212°F)	9.5
Modulus of Elasticity in Tensionksi	17000