C10800 Oxygen Free Low Phosphorous Copper (OFLP)

The following data is provided for informational purposes only. It was provided with permission by the Copper Development Association at www.copper.org.

Last Update: Feb 21, 2005

Chemical Composition (%max., unless shown as range or min.)

Cu(1X2) P
Min./Max. 99.99 min .005–.012

(1) Cu is determined by the difference between the impurity total and 100%.
(2) Cu value includes Ag.
(3) In troy ounce: Min = 25, Max = 0 and Nom = 0
Note: This is a high conductivity copper which has, in the annealed condition a minimum conductivity of 100% IACS except for Alloy C10100 which has a minimum conductivity of 101% IACS.

Applicable Specifications

Product Specification
Bands, Projectile Rotating MILITARY MIL–B–20292
Bar ASTM B187, B152
Brazing Filler Metal FEDERAL QQ–B–650
Nipples ASTM B687
Pipe ASTM B42, B698
Plate ASTM B152
Plate, Clad ASTM B432
Shapes ASTM B187
Sheet ASTM B152
Strip ASTM B272, B152
Tube ASTM B698
Tube, Capillary ASTM B360
Tube, Coils ASTM B743
Tube, Condenser ASTM B111
Tube, Finned ASTM B359
Tube, Seamless ASTM B641, B75
Tube, Seamless Bright Annealed ASTM B68
Tube, U–Bend ASTM B395
Tube, Welded ASTM B716, B641, B543, B447
Wire, Flat ASTM B272

Common Fabrication Processes
Blanking, Coining, Coppersmithing, Drawing, Etching, Forming and Bending, Heading and Upsetting, Hot Forging and Pressing, Piercing and Punching, Roll Threading and Knurling, Shearing, Spinning, Squeezing and Swaging, Stamping

Fabrication Properties

Joining Technique Suitability
Soldering Excellent
Brazing Excellent
Oxyacetylene Welding Good
Gas Shielded Arc Welding Excellent
Coated Metal Arc Welding Not Recommended
Spot Weld Not Recommended
Seam Weld Not Recommended
Butt Weld Good
Capacity for Being Cold Worked Excellent
Capacity for Being Hot Formed Excellent
Forgeability Rating 65
Machinability Rating 20

Physical Properties

US Customary Metric
Melting Point – Liquidus 1981 F 1083 C
Melting Point – Solidus 1981 F 1083 C
Density 0.323 lb/in3 at 68 F 8.94 gm/cm3 @ 20 C
Specific Gravity 8.94 8.94
Electrical Resistivity 11.3 ohms–cmil/ft @ 68 F 1.88 microhm–cm @ 20 C
Electrical Conductivity 92% IACS @ 68 F 0.538 MegaSiemens/cm @ 20 C
Thermal Conductivity 202.0 Btu · ft/(hr · ft2·oF)at 68F 349.6 W/m · oK at 20 C
Coefficient of Thermal Expansion 9.4 ·10–6 per oF (68–212 F) 16.9 ·10–6 per oC (20–100 C)
Coefficient of Thermal Expansion 9.6 ·10–6 per oF (68–392 F) 17.3 ·10–6 per oC (20–200 C)
Coefficient of Thermal Expansion 9.8 ·10–6 per oF (68–572 F) 17.6 ·10–6 per oC (20–300 C)
Specific Heat Capacity 0.092 Btu/lb/oF at 68 F 393.5 J/kg · oK at 293 K
Modulas of Elasticity in Tension 17000 ksi 117000 MPa
Modulus of Rigidity 6400 ksi 44130 MPa

*Volume and weight basis, minimum value.

Tempers Most Commonly Used

Flat Products
PLATE H00, H02, M20
SHEET H00, H01, H02, H04, OS025
STRIP, ROLLED H00, H01, H02, H04, H06, H08, OS025

PIPE H04, H58
ROD H00, H04
TUBE H55, H58, H80, O60, OS025

Typical Uses

Oil Lines, Hydraulic Lines, Gasoline Lines, Oil Coolers, Air Lines, Thermostats

Plumbing Tube, Oil Burner Tubes, Heater Units, Heater Lines, Gas Lines and Units, Plumbing Pipe

Refrigerators, Air Conditioners

Thermostatic Control Tubing, Clad Products, Commutators

Kettles, Heat Exchanger Tubes, Paper Lines, Steam Lines, Water Lines, Tanks, Gage Lines, Rotating Bands, Condenser Tubes, Brewery Tubes, Refrigerators, Air Conditioning Tubing, Pulp Lines, Plate for Welded Continuous Cast Molds, Distiller Tubes, Dairy Tubes

Plumbing Fittings