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ASTM B111 C71500 Seamless Brass Copper Nickel Boiler Tube / Pipe
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xProduct Details
| Model NO. | ASTM B111 C71500 | OD | 15.88mm-19.05mm |
|---|---|---|---|
| WT | 1.65mm/3.4mm | Material | Brass |
| Technology | Cold Drawn | Phosphorus | 0.015-0.040% |
| High Light | ASTM B111 C71500 Pipe,Seamless Copper Nickel Boiler Tube,Cold Drawn Seamless Copper Tube |
||
Product Description
ASTM B111 C71500 Seamless Brass Copper Nickel Boiler Tube/Pipe
| Type of product | Grade(s) | Technical requirements * according to |
| Copper tube/ pipe | UNS C12200 | ASTM B111, ASME SB111 ASTM B135, ASME SB135 ASTM B251, ASME SB251 BS EN 1057 or closer |
| Brass tube/pipe | UNS C23000, UNS C26200 ... UNS C44300, UNS C68700 ... |
|
| Cupronickel tube/pipe | UNS C70600, UNS C71500 UNS C71640 |
| copper Alloy | Chemical Composition | Temper | Mechanical Property | |||
| Copper % |
Phosphorus % |
Tensile Strength MPa |
Elongation % |
Hardness HV |
||
| Cu-DHP | ≥ 99.90 | 0.015-0.040 | R220 | ≥ 220 | ≥ 40 | 40-70 |
| Cu-DHP | ≥ 99.90 | 0.015-0.040 | R250 | ≥ 250 | ≥ 30 | 75-100 |
| Cu-DHP | ≥ 99.90 | 0.015-0.040 | R290 | ≥ 290 | ≥ 3 | ≥ 100 |
Cleanness Requirement - Air Conditioner and Refrigeration Copper Tube
| Copper Alloy | Temper | Cleanness | Standard |
| Cu-DHP | R220 | ≤ 38mg/m² | EN 12735-1 |
| Cu-DHP | R2250 | ≤ 38mg/m² | EN 12735-1 |
| Cu-DHP | R290 | ≤ 38mg/m² | EN 12735-1 |
Ordinary brass
It is an alloy of copper and zinc.
When the zinc content is less than 35%, zinc can dissolve in copper to form a single phase, known as single phase brass, good plasticity, suitable for hot and cold compression processing.
When the zinc content is 36%~46%, there is a single phase and copper zinc based β solid solution, called dual-phase brass, β phase makes the plasticity of brass decreased and the tensile strength increased, only suitable for hot pressure processing.
If the mass fraction of zinc continues to increase, the tensile strength will decrease and it is useless.
The code name is "H + number", where H represents brass and number represents the mass fraction of copper.
For example, H68 refers to brass with a copper content of 68% and zinc content of 32%. Cast brass is preceded by the word "Z", as in ZH62.
For example, Zcuzn38 is cast brass with 38% zinc content and copper margin.
H90, H80 are single-phase brass, golden yellow, so they are called gold, known as coatings, decorations, MEDALS, etc.
H68, H59 are duplex brass, widely used in electrical structural parts, such as bolts, nuts, washers, springs and so on.
In general, single-phase brass is used for cold deformation processing and dual-phase brass is used for hot deformation processing.
Special brass
The addition of other alloying elements to the common brass in the composition of a plurality of alloys called brass. Often added elements are lead, tin, aluminum, etc., can be called lead brass, tin brass, aluminum brass. The purpose of adding alloying elements. It is mainly to improve the tensile strength to improve the process.
Code: "H + main plus element symbol (except zinc) + mass fraction of copper + mass fraction of main plus element + mass fraction of other elements".
For example, HPB59-1 represents lead brass with 59% copper, 1% lead and zinc margin.
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