ASTM C27400 Common Brass Seamless Tubes For Water Supply Pipe In Washroom
1. Description
ASTM c27400 brass tube has the advantages of light weight, good thermal conductivity and high low temperature strength. It is commonly used to manufacture automobile engine, automobile oil pipe and bathroom water pipe. Small diameter copper pipe is usually used to transport pressure liquid (such as lubrication system, oil pressure system, etc.) and small pressure pipeline.
Brass pipe has the following advantages: brass pipe has hard material, has the characteristics of hard corrosion. Because the metal is hard, it can withstand high temperature and high pressure, and it can be easily used in various conditions. Compared with other materials, it can show its advantages. For example, the galvanized steel pipe used by many families in the past is often rusty, and the water quality will turn yellow and the water quality will deteriorate if it is not used for a long time. In addition to galvanized steel pipe, the hardness of some other materials will drop rapidly under high temperature conditions, which may cause unsafe hidden danger when hot water flows in. However, the melting point of brass is as high as 1083 degrees centigrade, and the temperature of the hot water system in ordinary families is quite easy for brass pipes.
2. Chemical composition
| Cu :62.0～65.0 |
| Zn:Remain |
| Pb:≤0.08 |
| Ni:0.5 |
| Fe:≤0.15 |
| Impurity:≤0.5 |
3. Mechanical properties
Tensile strength: (σ B / MPA): ≥ 370
Elongation: (δ 10 /%) ≥ 15
Elongation: (δ 5 /%) ≥ 18
4. Standard comparison
| Category | China | US | UK | Germany | Japan |
| GB | ASTM | CDA | BS | DIN | Digital system | JIS |
| Common Brass | H63 | C27400 | 272 | Cz108 | CuZn37 | 2.0321 | |
5. OD table and tolerance
T mm
OD mm | 0.15--0.2 | 0.2--0.3 | 0.3--0.5 | 0.5--0.8 | 0.8--1.2 | 1.2--1.8 | 1.8--2.5 | 2.5--3 | 3--4 |
| 2.5--5 | √ | √ | √ | | | | | | |
| 6--10 | √ | √ | √ | √ | √ | | | | |
| 11--15 | | √ | √ | √ | √ | √ | | | |
| 16--20 | | | √ | √ | √ | √ | | | |
| 20--25 | | | √ | √ | √ | √ | √ | | |
| 25--35 | | | √ | √ | √ | √ | √ | | |
| 35--45 | | | √ | √ | √ | √ | √ | √ | |
| 45--55 | | | | √ | √ | √ | √ | √ | √ |
| outside diameter | Average tolerance |
| General (±mm) | high(±mm) |
| 3--15 | 0.09 | 0.05 |
| 15--25 | 0.1 | 0.06 |
| 25--50 | 0.15 | 0.08 |
6. Wall Thicknese and tolerance
| wall thickness | Average tolerance |
| General(mm) | high(mm) |
| 0.2--0.5 | ±0.02--0.05 | ±0.01--0.03 |
| 0.5--0.8 | ±0.05--0.08 | ±0.02--0.05 |
| 0.8--1.5 | ±0.08--0.15 | ±0.05--0.12 |
| 1.5--2.5 | ±0.15--0.25 | ±0.12--0.2 |
| 2.5--4 | ±0.25--4 | ±0.2--0.3 |
7. Details picture
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Washroom Water Supply ASTM C27400 Seamless Copper Pipe Images
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