Nacobre Deoxidized High Residual Phosphorus is pure electrolitically refined copper, deoxidized with phosphorus. Tubes of phosphorus-deoxidized copper have, for years, found wide and satisfactory applications in chemical and industrial heat exchangers, condensers and evaporators. They are also used in feedwater heaters and similar auxiliaries in stationary steam power plants, air-conditioning and refrigeration equipment as well as plumbing uses. Phosphorized Copper Tubes are used in sugar house and refinery heaters and in calandria pans. Nacobre Copper Tubes have the highest thermal conductivity of any of the standard heat exchanger tubes. They are, therefore, suitable for many industrial purposes where this property and corrosion resistance are desirable.

FEASIBLE DIMENSION

 

 

 

 

 

 

 

STANDARD SIZES DWV

1 ¼

1 ½

2

3

4

OUTSIDE DIAMETER

1.375

1.625

2.125

3.125

4.125

WT

0.040

0.042

0.042

0.045

0.058

Length:

All sizes are produced in straight lengths of 20 ft, if another length is desired an agreement between customer – supplier should be done.

CHEMICAL COMPOSITION

Alloy

Cu (%)

P(%)

C12200

99.9

0.015 – 0.040

MECHANICAL PROPERTIES

Alloy

Temper

Tensile Strength (ksi)

Hardness

C12200

H58

40 Min.

30 Min R30T

 

PHYSICAL PROPERTIES

 

UNITS

C12200

MELTING POINT
(LIQUIDUS)

°F (°C)

1981 (1083)

MELTING POINT
(SOLIDUS)

°F (°C)

 

DENSITY (TO 20°C)

Lb/cu,in

0.323

COEFICIENT OF THERMAL
EXPANSION

per °F From 68 to 572

9.8 x 10 –6

THERMAL CONDUCTIVITY

Btu/sq.ft./ft/hr/°F
to 68°F

196

ELECTRICAL RESISTIVITY
(ANNEALED)

Ohms (circ.mil./ft)
to 68 °F

12.2

ELECTRICAL
CONDUCTIVITY
(ANNEALED)

% IACS
to 68°F

85

THERMAL CAPACITY
(SPECIFIC HEAT)

Btu/lb/°F
to 68|°F

0.09

MODULUS OF ELASTICITY
(TENSION))

ksi

17000

MODULUS OF RIGIDITY

ksi

6400

ANNEALED TEMPERATURE

°F - °C

700-1200 - 375-650

SUITABILITY FOR BEING JOINED BY

 

Alloy

Soldering

Brazing

Oxyacetylene Welding

Carbon Arc
Welding

C712200

Excellent

Excellent

Good

Good


 

 

 

 

 

 

Alloy

Gas
Shielded
Arc
Welding

Coated Metal
Arc Welding

Resistance welding

Spot

Seam

Butt

C712200

Excellent

Not recommen
ded

Not
recommen
ded

Not
recommen
ded

Good

DECIMAL EQUIVALENTS IN INCHIDES FOR VARIOUS GAGES

Gage. No.

1

2

3

4

5

6

BWG

.0.300

0.284

0.259

0.238

.0.220

0.203

AWG

0.2893

0.2576

0.2294

0.2043

0.1819

0.162


Gage. No.

7

8

9

10

11

12

BWG

0.180

0.165

0.148

0.134

0.120

0.109

AWG

0.1443

0.1285

0.1144

0.1019

0.0907

0.0808


Gage. No.

13

14

15

16

17

18

BWG

0.095

0.083

0.072

0.065

0.058

0.049

AWG

0.0720

0.0641

0.0571

0.0508

0.0453

0.0403


Gage. No.

19

20

21

22

23

24

BWG

0.042

0.035

0.032

0.028

0.025

0.022

AWG

0.0359

0.0320

0.0285

0.0253

0.0226

0.0201

 

 

 

 

NON DESTRUCTIVE TESTS AVAILABLE
EDDY CURRENT TEST
HYDROSTATIC TEST
PNEUMATIC TEST

MAXIMUM WORK PRESSURE
P = Maximum work pressure (psi)
S = Minimum tensile strength of material for an
Specific temper (It is the the value of the
Tensile strength in psi in Mechanica
Properties table)
D = Exterior diameter of tube
T = Wall thickness of tube

 

APPLICABLE STANDARDS
ASTM
ASME
BRITISH STANDARD
DIN
JIS
MIL

WEIGTH PER FEET
W= WEIGTH PER FEET( lb/ft)
D= OUTSIDE DIAMETER( in)
P= WALL THICKNESS ( in)
W= ( D-P)*P*12.18

Note: The cracking pressure is the value of 5 times the work pressure.