Nacobre Denomination: 122
Designation: Phosphorus Deoxidize
High Residual Phosphorus

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 and air-conditioning equipment. 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 (SPS)

1/8

1/4

3/8

1/2

3/4

1

1 1/4

OUTSIDE DIAMETER

0.405

0.540

0.675

0.840

1.050

1.315

1.660

WT

REGULAR

0.062

0.082

0.090

0.107

0.114

0.126

0.146

WT

STRONG

0.100

0.123

0.127

0.149

0.157

0.182

0.194

 

NOMINAL SIZE (SPS)

1 1/2

2

2 1/2

3

3 1/2

4

OUTSIDE DIAMETER

1.900

2.375

2.875

3.500

4.000

4.500

WT

REGULAR

0.150

0.156

0.187

0.219

0.250

0.250

WT

STRONG

0.203

0.221

0.280

0.304

0.321

0.341

 

Lengths

 

For standard sizes the length is 12 Ft

For non standard sizes the lenth is as follows:

- Diameters up to 1.250 are produced from 8 to 40 Ft

- Diameters over 1.250 apre produced from 8 to 30 Ft

- Another lengths should be requested as fabrication feasibility

COMPOSICIÓN QUÍMICA

Aleación

Cu (%)

P (%)

C12200

99.9 Min.

0.015 to 0.040

MECHANICAL PROPERTIES


Alloy

Temper

Tensile Strength (ksi)

Yield Strength

(ksi)

C12200

H55

36 Min.

30 Min.

C12200

H58

36 Min.

30 Min.

C12200

H80

45 Min.

40 Min.

C12200

O50

30 Min.

9 Min.

C12200

O60

30 Min.

9 Min.

C12200

O61

30 Min.

9 Min.

Alloy

Grain Size

(mm)

Hardness

Expansion%

C12200

      

C12200

      

C12200

      

C12200

0.040 Max.

65 Max. R30T

(WT up 0.035”)

55 Max. RF

(WT over 0.035”)

Up ¾” OD 30%

Over ¾” OD 40%

C12200

0.040 Min.

66 Max. R30T

(WT up 0.035”)

50 Max. RF

(WT over 0.035”)

Up ¾” OD 30%

Over ¾” OD 40%

C12200

0.050 Max.

  

25% Min.

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

sds

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 anSpecific temper (It is the the value of theTensile strength in psi in MechanicaProperties 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.