Nacobre Denomination: 122
Designation: Phosphorus Deoxidized
High Residual Phosphorus (DHP)

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

 

 

 

 

 

 

 

 

 

NOMINAL SIZE

1/4

3/8

1/2

5/8

¾

1

1 1/4

OUTSIDE DIAMETER

0.375

0.500

0.625

0.750

0.875

1.125

1.375

WT TYPE M

0.022

0.025

0.028

0.030

0.032

0.035

0.042

WT TYPE L

*
0.030

*
0.035

*
0.040

*
0.042

*
0.045

0.050

0.055

WT TYPE K

*
0.035

*
0.049

*
0.049

*
0.049

*
0.065

0.065

0.065


 

 

 

 

 

 

 

 

NOMINAL SIZE

1 1/2

2

2 1/2

3

3 1/2

4

OUTSIDE DIAMETER

1.625

2.125

2.625

3.125

3.625

4.125

WT TYPE M

0.049

0.058

0.065

0.072

0.083

0.095

WT TYPE L

0.060

0.070

0.080

0.090

0.100

0.110

WT TYPE K

0.072

0.083

0.095

0.109

0.120

0.134

Straight Length:

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


Coils:

All sized marked with “*” are produced in coils of 60 and 100 ft, if another length
is desidere 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)

Expansion Min.

C12200

Straight Lengths

H58

36 Min.

N/A

C12200

Straight Lengths

O50

30 Min.

40 % 5/8 and under
30 % overr 5/8

C12200

Coils

060

30 Min.

40 % 5/8 and under
30 % overr 5/8


Alloy

Averagen grain size
(mm)

Hardness

C12200

N/A

30 Min R30T

C12200

0.025 Min

55 Max. RF

C12200

0.040 Min.

50 Max. RF

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

C12200

Excellent

Excellent

Good

Good


 

 

 

 

 

 

Alloy

Gas Shielded
Arc Welding

Coated Metal
Arc Welding

Resistance welding

Spot

Seam

Butt

C12200

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 thw work pressur.