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
STANDARD SIZES IN COILS AND STRAIGHT LENGTHS


 

NOMINAL SIZE

1/4

5/16

3/8

1/2

5/8

3/4

OUTSIDE DIAMETER

0.250

0.312

0.375

0.500

0.625

0.750

WT
(STRAIGHT)

 

 

0.030

0.035

0.040

0.042

WT
(COILS)

0.030

0.032

0.032

0.032

0.035

0.042


 

NOMINAL SIZE

7/8

1 1/8

1 3/8

1 5/8

2 1/8

2 5/8

OUTSIDE DIAMETER

0.875

1.125

1.375

1.625

2.125

2.625

WT
(STRAIGHT)

0.045

0.050

0.055

0.060

0.070

0.080

WT
(COILS)

0.045

 

 

 

 

 


 

MEDINA NOMINAL (SPS)

3 1/8

3 5/8

4 1/8

DIAMETRO EXTERIOR

3.125

3.625

4.125

WT
(STRAIGHT)

0.090

0.100

0.110

WT
(COILS)

 

 

 



MEDIDAS ESTANDAR EN ROLLOS Y TRAMO RECTO

Lengths:

Standard sizes in straight lengths are produced in 20 ft and coils in 50 ft.
Not standard size in coils are produced from 50 – 150 ft.
If another length is desired an agreement between customer – supplier should be done.


COMPOSICIÓN QUÍMICA

Alloy

Cu (%)

P

C12200

99.9

0.015 – 0.040

PROPIEDADES MECÁNICAS

Alloy

 

Temper

Tensile Strength
(ksi)

Averange grain size (mm)

C12200

Tramo recto

H58

36 Min.

N/A

C12200

Tramo recto Lengths

O50

30 Min.

0.015 – 0.040

C12200

Rollos

060

30 Min.

0.035 Min.


Aleación

 

Expansión

Elongación

C12200

Tramo recto

N/A

N/A

C12200

Tramo recto Lengths

40% Min.

40% Min.

C12200

Rollos

40% Min.

40% Min.


Note: Standard sizes are produced in H58 and O60 tempers.

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 Recomended

Not Recomended

Not Recomended

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.