Name: Copper pipe
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Copper pipe

Copper pipes are tubular products manufactured from high-purity copper through extrusion, drawing, or rolling processes. They feature excellent thermal conductivity, good corrosion resistance, and superior workability, making them essential for plumbing, HVAC, refrigeration, and industrial applications.

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◉ PRODUCT SPECIFICATION

1. Material Standards & Grades

Primary Standards:

ASTM B88 - Seamless Copper Water Tube
EN 1057 - Copper and copper alloys - Seamless, round copper tubes for water and gas in sanitary and heating applications
JIS H3300 - Copper and copper alloy seamless pipes and tubes
GB/T 18033 - Seamless copper pipes for water and gas

Common Copper Grades:

Grade	ASTM	EN	JIS	Key Characteristics
Phosphorus Deoxidized Copper	C12200	CW024A	C1220	Excellent weldability
Oxygen-Free Copper	C10200	CW008A	C1020	High purity applications

2. Chemical Composition (% by weight)

Element	C12200 (DHP Copper)	C10200 (Oxygen-Free)
Copper + Silver	≥ 99.90%	≥ 99.95%
Phosphorus	0.015-0.040%	-
Oxygen	≤ 0.01%	≤ 0.001%
Other Impurities	≤ 0.05%	≤ 0.05%

3. Mechanical Properties

Temper	Yield Strength (MPa)	Tensile Strength (MPa)	Elongation (%)	Hardness (HV)
Annealed (O)	60-120	200-240	≥ 35	45-65
Half Hard (H)	170-240	220-280	≥ 15	65-85
Hard (H)	200-280	250-320	≥ 10	75-95

4. Physical Properties

Property	Typical Value	Test Standard
Density	8.96 g/cm³	ASTM B193
Thermal Conductivity	391 W/m·K	ASTM E1225
Thermal Expansion Coefficient	17.0 × 10⁻⁶/°C	ASTM E228
Melting Point	1083°C	-
Modulus of Elasticity	115 GPa	ASTM E111

5. Product Specifications

Parameter	Standard Range	Tolerance	Available Customization
Outer Diameter	6mm - 200mm	±0.05-0.5mm	4mm - 300mm
Wall Thickness	0.5mm - 5.0mm	±5-10%	0.3mm - 8.0mm
Length	1000mm - 6000mm	+10mm/-0mm	500mm - 15000mm
Straightness	≤ 1.0mm/m	-	≤ 0.5mm/m

6. Manufacturing Processes

Production Methods:

Extrusion: For larger diameters and thick walls
Drawing: For precision dimensions and smooth surface
Rolling: For specific size ranges

Process Characteristics:

Annealing temperature: 400-600°C
Surface finish: Pickled, polished, or coated
End types: Plain, beveled, or threaded

7. Surface Quality & Finish

Surface Conditions:

Surface Type	Surface Roughness (Ra)	Characteristics	Applications
Bright	0.1-0.4μm	Mirror-like	Decorative
Polished	0.4-1.6μm	Smooth	General purpose
Pickled	1.6-3.2μm	Clean, oxide-free	Industrial

8. Testing & Inspection

Standard Tests:

Hydrostatic pressure test
Flaring test
Flattening test
Chemical analysis
Dimensional inspection
Surface quality inspection

Optional Tests:

Eddy current test
Ultrasonic test
Grain size measurement
Third-party inspection

9. Applications

Plumbing Applications:

Water supply lines
Gas pipelines
Heating systems
Sanitary installations

HVAC & Refrigeration:

Refrigeration lines
Air conditioning systems
Heat exchangers
Condenser tubes

Industrial Applications:

Compressed air lines
Hydraulic systems
Instrumentation tubes
Medical gas pipelines

◉ Surfcae selection

SURFACE	CHARACTERISTIC	SUMMARY OF MANUFACTURING METHOD	APPLICATION
NO.1	Silvery white	Hot rolled to specified thickness	Do not need to have a glossy surface use
NO.1	lackluster	Hot rolled to specified thickness	Do not need to have a glossy surface use
NO.2D	Silvery white	After cold rolling, heat treatment and pickling are carried out	General material, deep material
NO.2B	Gloss is stronger than No.2D	After No.2D treatment, the final light cold rolling is carried out through the polishing roller	The general material
BA	As bright as a sixpence	No standard, but usually a bright annealed surface with high reflectivity.	Building materials, kitchen utensils
NO.3	Rough lapping	Grind with 100~200# (unit) strop tape	Building materials, kitchen utensils
NO.4	Intermediate grinding	Polished surface obtained by grinding with 150~180# strop abrasive tape	Building materials, kitchen utensils
NO.240	Fine lapping	Grinding with 240# strop abrasive tape	kitchenware
NO.320	Very fine grinding	Grinding was carried out with 320# strop abrasive tape	kitchenware
NO.400	The luster is close to BA	Use 400# polishing wheel to grind	General timber, building timber, kitchen appliances
HL	Hairline grinding	Suitable particle material for hair stripe grinding (150~240#) with many grains	Building, construction material
NO.7	It's close to mirror grinding	Use a 600# rotary polishing wheel to grind	For art or decoration
NO.8	Mirror ultrafinish	The mirror is ground with a polishing wheel	Reflector, for decoration