ASTM B68/B280 Seamless Copper Pipe for Plumbing & HVAC Systems¹

Product Description  Product DescriptionDimensions & SizingASTM B75 (Water/Gas Tubes):Nominal Diameter: 1/8 to 12 inches (3.18-304.8 mm).Wall Thickness: Types K (thick), L (medium), M (thin) per table below: Tube TypeNominal Diameter (in)Wall Thickness (in)K1/8-120.040-0.203L1/8-120.030-0.156M1/8-60.028-0.083 ASTM B68 (Sanitary Tubes):Precision sizes for medical/semiconductor applications (e.g., 0.5-6 inches OD, ±0.005" tolerance).ASTM B280 (Refrigeration Tubes):OD: 3/16-1-5/8 inches (4.76-41.28 mm), wall thickness: 0.014-0.065 inches. AlloyC10200C12200 (Deoxidized Copper)C11000 (Electrolytic Tough Pitch)Oxygen Content≤0.003%≤0.004% (with P deoxidizer)0.02-0.04% (trapped oxygen)Conductivity100% IACS85% IACS100% IACSHigh-Temp UseExcellent (to 400°C)Good (to 250°C)Limited (oxygen may react)UsageVacuum systems, electronicsPlumbing, general useElectrical wiring, busbars ClassificationDetailsMaterial NameC10200 Oxygen Free Copper (CDA 102)StandardsUNS CDA 102, SAE J461, ASTM B152, ASTM B187, ASTM B272CharacteristicsHigh ductility, high electrical and thermal conductivity, high impact strength, good creep resistance, ease of welding, low volatility under high vacuumTypical Uses - Electrical FieldElectrical Conductors, Klystrons, Microwave Tubes, Transistor Components, Lead In Wire, Coaxial Cables, Copper to Glass Seals in Electronic Appliances, Busbars, Bus Conductors, Wave GuidesTypical Uses - Industrial FieldTubing, LP Gas Service Tubing, Medical Gas - Oxygen Tubing, Vacuum Seals, Coaxial Tube, Billet Mold Tube, Extrusion Cans for Powder MetallurgyCorrosion Resistance & CompatibilityNatural Corrosion Resistance:Resists atmospheric, water, and most non-oxidizing acids (e.g., acetic, citric).Pitting Risk: Avoid contact with ammonium salts or sulfur compounds.Compatibility:Fittings: Compatible with copper, brass, and stainless steel fittings (e.g., ASTM B88 flare fittings).Fluids: Safe for potable water, refrigerants (R-410A, R-134a), and inert gases.Mechanical & Physical PropertiesPropertyC10200 (Soft)C10300 (Soft)Test MethodTensile Strength20 ksi (138 MPa)22 ksi (152 MPa)ASTM E8Yield Strength (0.2%)6 ksi (41 MPa)8 ksi (55 MPa)ASTM E8Elongation (%)3530ASTM E8Electrical Conductivity≥100% IACS≥97% IACSASTM B193Thermal Conductivity401 W/m·K386 W/m·KASTM E1530Density8.93 g/cm38.95 g/cm3ASTM B39    Expansion TestTube specimens selected for test shall withstand the expansion shown in standard when expanded in accordance with Test Method B 153. The expanded tube shall show no cracking or rupture visible to the unaided eye.Hard-drawn tubes not end annealed are not subject to this test. When tubes are specified end annealed, this test is required and shall be performed on the annealed ends of the sampled tubes.Tubes for ferrule stock are not subject to the expansion test.Flattening TestTest Method-Each test specimen shall be flattened in a press at three (3) places along the length, each new place to be rotated on its axis approximately one third turn from the last flattened area. Each flattened area shall be at least 2 in. in length. A flattened test-specimen shall allow a micrometer caliper set at three (3) times the wall thickness to pass freely over the flattened area. The flattened areas of the test specimen shall be inspected for surface defects.During inspection, the flattened areas of the test- specimen shall be free of defects, but blemishes of a nature that do not interfere with the intended application are acceptable.Tubes for ferrule stock are not subject to flattening test.Residual Stress TestA residual stress test is required to be performed only for Copper Alloy UNS Nos. C23000, C28000, C44300, C44400, C44500, C60800, C61300, C61400, and C68700.Unless otherwise specified, the producer shall have the option of testing the product to either the mercurous nitrate test, Test Method B 154, or the ammonia vapor test, Test Method B 858, as prescribed below.Nondestructive TestingEddy-Current Test-Each tube shall be passed through an eddy-current testing unit adjusted to provide information on the suitability of the tube for the intended application. Testing shall follow the procedures of Practice E 243.Hydrostatic TestEach tube shall stand, without showing evidence of leakage, an internal hydrostatic pressure sufficient to subject the material to a fiber stress of 7000 psi [48 MPa] as determined by the following equation for thin hollow cylinders under tension. The tube need not be tested at a hydrostatic pressure of over 1000 psi [7.0 MPa] unless so specified. Detailed Photos   Processing of Production 

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