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ASTM C26200 Common Brass Seamless Tubes For Heat Exchanger And Lubricating System
1. Description
ASTM c26200 seamless brass tube has good variable performance (the best brass). High strength and good machinability make it easy to weld. The brass tube has good corrosion performance and is very stable. But it is easy to produce corrosion cracking. Brass seamless pipe can be used in heat exchanger and condenser, low temperature pipeline and submarine transportation pipe.
The strength of c26200 seamless copper tube is higher than that of copper tube (but the strength is the lowest among ordinary brass). It has good electrical and thermal conductivity, and has strong corrosion resistance in the atmosphere and fresh water. It is easy to be processed by hot and cold pressure, easy to be welded, forged and tinned, and has no tendency of stress corrosion cracking. It is usually used in oil pressure system, such as lubrication system.
2. Chemical composition
| Cu :64.0～68.0 |
Zn:Remain |
Pb:≤0．05 |
P:≤0．01 |
Fe:≤0．05 |
Sb :≤0．005 |
| Bi:≤0.002 |
| Impurity:≤0.3 |
3. Mechanical properties
Tensile strength: (σ B / MPA): ≥ 440
Elongation: (δ 10 /%) ≥ 25
Elongation: (δ 5 /%) ≥ 30
C26200 Brass Longitudinal Elastic Coefficient KGF / mm2:10500
4. Standard comparison
| Category | China | US | UK | Germany | Japan | ||
| GB | ASTM | CDA | BS | DIN | Digital system | JIS | |
| Common Brass | H68 | C26200 | CuZn33 | 2.028 | |||
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