manufacturing world-class seamless, thin-wall copper tubes according to the international standards. Combination of high quality precision machinery and advanced digital control system has made we enable to keep tighter dimensional tolerances and to meet the most stringent standards. In addition, the carefully controlled annealing process introduces a new level of cleanliness for the tubes.
Following two main groups of tubes:
- Smooth surface copper tubes.
- Inner grooved copper tubes.
Inner grooved tubes can be used in superior residential and commercial air conditioning units. The purpose of these tubes is to enhance heat transfer between the medium inside and outside of the tube by increasing the inner contact surface. These seamless drawn tubes increase the efficiency of heat exchangers. The seamless drawn tubes are enhanced by applying a special inner tool (die) w hile drawn to the final dimension.
To satisfy the market demand, copper tubes are produced in three groups of TPC, DHP and DLP with following applications:
These copper tubes have excellent electrical and thermal conductivity, and are mainly used in electrical applications especially as cab le shoes.
Good workability, draw-ability, high heat conductivity and weldability are the main characteristics of this category of copper tubes, w hich make them excellent to be used in HVAC (heating, ventilation and air conditioning) systems and industrial heat exchangers.
we offers copper tubes in a wide range of diameter with different thickness. More detail information is shown in the following t able.
Chemical composition and standard conformance for brass sections are as following table.
|Alloy||Denomination||Standard Conformance||Chemical Composition|
|ISO||ASTM USA||DIN Germany||JIS Japan||BS England||Cu (Min)||Phosphorus|
|TPC||Touth Pitch Copper||Cu-ETP||C 11000||E Cu 58||C 1100||C 101||99.90||0.004 Max|
|DLP||Phosphorus||Cu-DLP||C 12000||SW-Cu||C 1201||-||99.90||0.004-0.015|
|DHP||Deoxidized Copper||Cu-DHP||C 12200||SF-Cu||C 1220||C 106||99.90||0.015-0.040|
All tubes are produced to the dimensional tolerances specified in ASTM standards.
The following standards comply for copper tubes:
Copper - Half-finished Products.
DIN 178 5
Wrought copper and copper alloy tubes for condensers and heat exchangers.
Copper Tubes - Seamless drawn, dimension ranges and coordination of tolerances.
Copper Tubes - Seamless drawn, preferred dimensions for general purposes.
Wrought copper and copper alloy tubes; properties.
DIN EN 12449
Copper and copper alloys - Seamless, round tubes for general purposes.
DIN EN 12451
Copper and copper alloys - Seamless, round tubes for heat exchangers.
DIN EN 12735-1
Copper and copper alloys – Seamless round copper tubes for air conditioning and refrigeration - Part 1: Tubes for piping systems.
DIN EN 12735-2
Copper and copper alloys - Seamless, round copper tubes for air conditioning and refrigeration - Part 2: Tubes for equipment.
Standard Specification for copper and copper alloy seamless condenser tubes and ferrule stock
Standard Specification for seamless copper tube
Standard Specification for seamless copper tube for air conditioning and refrigeration field service
< br />ASTM B395/B395M-08
Standard Specification for U-Bend seamless copper and copper alloy heat exchanger and condenser tubes
JIS H 3300
Copper and copper alloy seamless pipes and tubes
Specification for copper and copper alloys. Tubes. Tubes for general purposes
Specification for copper and copper alloys. Tubes. Tubes for heat exchanger s
BS EN 12449:1999
Copper and copper alloys. Seamless, round tubes for general purposes
BS EN 12451:1999
Copper and copper alloys. Seamless, round tubes for heat exchangers
BS EN 12735-2:2010
Copper and copper alloys. Seamless, round copper tubes for air conditioning and refrigeration. Tubes for equipment