Overview
C44300 has good corrosion resistance and is specially used for tubing of steam condensers cooled with fresh, salt or brackish water. ASTM B111 C44300 Brass tubes are also used for heat exchangers in oil refineries, in which corrosion from sulfur compounds and contaminated water may be very severe, and for feed-water heaters and heat-exchanger equipment as well as other industrial processes.
Specification
ASTM B111/B111M Standard Specification for Copper and Copper-Alloy Seamless Condenser Tubes and Ferrule Stock.
UNS No. | C44300 – BSI No. CZ111 ISO Name CuZn28Sn1 |
Chemical Comp. (%) | Cu 70 ~ 73 / Sn 0.9 ~ 1.2 / Pb 0.07 / Fe 0.06 max / Zn rem / As 0.02 ~ 0.06 |
ASTM Spec. | B111, B395 |
ASME Spec. | SB111, SB395 |
Applications | Condenser, Evaporator and Heat Exchanger tubes; Distiller tubing. |
Temper | O61 Annealed |
Chemical Composition
| Element | |||||
Cu | Pb | Sn | Zn | Fe | As | |
Min (%) | 70 |
| 0.8 |
|
| 0.02 |
Max (%) | 73 | 0.07 | 1.2 | Rem | 0.06 | 0.06 |
Mechanical Properties
Form | Temper | Temper Code | Tensile Strength (ksi) | YS-0.5% Ext (ksi) | Elongation (%) | Rockwell F scale | Rockwell 30T scale | Torsion Modulus (ksi) | Izod (ft-lbs) | Section Size (in) |
Plate | As Hot Rolled | M20 | 48 Typ | 18 Typ | 65 Typ | 70 Typ |
| 5.8 Typ | 60 Typ | 1 |
Strip | Light Anneal | O50 | 48 Typ | 14 Typ | 62 Typ |
|
|
|
| 0.04 |
Soft Anneal | O60 | 45 Typ | 13 Typ | 69 Typ |
|
|
|
| 0.04 | |
Tube | Nominal Grain Size 0.025 mm | OS025 | 53 Typ | 22 Typ | 65 Typ | 75 Typ | 37 Typ |
|
|
|
Wire | Nominal Grain Size 0.015 mm | OS015 | 55 Typ |
| 60 Typ |
|
|
|
| 0.08 |
Applications
1. Evaporator Tubing.
2. Heat Exchanger Tubing.
3. Condenser Tube Plates.
4. Distiller Tubes.
5. Oil Well Pump Liner.
6. Ferrules.
7. Bourdon Tubes.
8. Condenser Tubes.
