Aluminium Bronze

BS2874 CA104

CA104 is wrought high strength aluminium bronze, the commonly most used bronze on the market in the UK.

Used for its high strength and excellent corrosion resistance to sea water and other aggressive environments. Also has good wear and abrasive resistance the ability to withstand shock loading.

• Aluminium is the main alloying metal added to copper in contrast to standard bronze (copper/tin)
• Higher strength and corrosion resistance compared to other bronzes
• Resistance to corrosion in seawater
• Material reacts with atmospheric oxygen to create a tough layer of aluminium oxide
• Commonly used in the marine sector, oil and petrochemical industries (non sparking environments)
• Used in the manufacture of valves and fasteners

Download our current material list

Material Stocklist.pdf

Chemical Properties

-
-
Min
Max
Cu
Copper
BAL
-
Sn
Tin
10.0
0.10
Pb
Lead
-
0.05
Zn
ZInc
-
0.40
Ni
Nickel
-
5.5
Al
Aluminium
8.5
11.0
Fe
Iron
4.0
5.50
Mn
Manganese
0.50
Si
Silicon
-
0.20
-
Impurities
-
0.50

Mechanical Properties

Size Range
Ø mm
0.2%PS
N/mm²
UTS
N/mm²
Elongation
%
6-18mm
400
700
10
18-80mm
370
700
12
80mm +
320
650
12