Alloyed Tubes
Cupronickel and Admiral Brass are among the commonly used alloyed tubes, specially applicable in navy and petroleum industries.
copper tubes in varied sizes in coil (LWC), pancake or straight packages to supply the market demand. The dimensional parameters of copper tubes are outer diameter and thickness. The range of producible copper tubes is sh own in below table.
| Outer diameter | Thickness (mm) | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| mm | in | 0.35 | 0.4 | 0.45 | 0.5 | 0.55 | 0.6 | 0.65 | 0.7 | 0.75 | 0.8 | 0.9 | 1 | 1.14 | 1.15 | 1.24 | 1.25 | 1.4 | 1.43 |
| 2 | P | ||||||||||||||||||
| 3 | P | P | P | ||||||||||||||||
| 4.8 | P | ||||||||||||||||||
| 6.35 | 1/4 | L | L | LP | LSP | LSP | LSP | LSP | LSP | LSP | LSP | ||||||||
| 7.93 | 5/16 | L | LP | LSP | LSP | LSP | LSP | LSP | LSP | LSP | |||||||||
| 8 | LSP | LSP | LSP | LSP | LSP | LSP | |||||||||||||
| 9.52 | 3/8 | L | L | LP | LSP | LSP | LSP | LSP | LSP | LSP | LSP | ||||||||
| 10 | L | LP | LSP | LSP | LSP | ||||||||||||||
| 10.2 | LSP | LSP | LSP | ||||||||||||||||
| 12 | LSP | LSP | S | LSP | LSP | LSP | LSP | LSP | |||||||||||
| 12.7 | 1/2 | LP | LSP | LSP | LSP | LSP | LSP | LSP | LSP | LSP | L | S | L | S | |||||
| 15 | LSP | LSP | LSP | LSP | LSP | ||||||||||||||
| 15.87 | 5/8 | L | LP | LSP | LSP | LSP | LSP | LSP | LSP | LSP | LSP | LSP | L | S | L | S | |||
| 16 | LSP | LSP | S | LSP | LSP | LSP | |||||||||||||
| 18 | LSP | LSP | LSP | LSP | LSP | ||||||||||||||
| 19 | LSP | LSP | LSP | LSP | LSP | ||||||||||||||
| 19.05 | 3/4 | LSP | LSP | LSP | LSP | LSP | LSP | L | S | L | S | S | L | ||||||
Chemical composition and standard conformance for alloyed tubes are as following table.
| Alloy | Denomination | Standard Conformance | Chemical Composition | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| ISO | ASTM USD | Din Germany | JIS Japan | BS England | Cu | Lead | Zinc | |||
| ADB(1) | Admiralty Brass | CuZn28Sn1 | C 44300 | CuZn28Sn1 | C 4430 | CZ 111 | 70.0-72.0 | - | Rem | |
| ALB(2) | Aluminum Brass | CuZn20Al2 | C 68700 | CuZn20Al2 | C 6870 | CZ 110 | 76.0-79.0 | - | Rem | |
| AMB(2) | High Tensile Brass | CuZn37Mn3Al2 | - | CuZn40Al2 | - | CZ 114 | 56.5-59.0 | - | Rem | |
|
(1) Sn: 0.9-1.2 (2) Al: 1.8-2.3, AS: 0.02-0.035 |
(3) Al: 1.3-2.3, Fe: 0.3, Mn: 1.4-2.6, Ni: 2, Si: 0.3-1 (4) Fe: 0.2 |
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The following standards comply for Alloyed Tubes:
DIN 17664
Wrought copper alloys; copper-nickel alloys; composition.
DIN 17671-1
Wrought copper and copper alloy tubes; properties.
ASTM B111/B111M-08a
S tandard Specification for Copper and Copper-Alloy Seamless Condenser Tubes and Ferrule Stock
JIS H 3300 Publication date: 2009-07-20
Copper and copper alloy seamless pipes and tubes