BearMet180

Aluminum Bronze

Characteristics：

It is a high-strength copper alloy that offers a unique combination of high strength, good fatigue resistance, excellent seawater corrosion resistance, non-sparking characteristics, and wear resistance.

Typical applications:

It is typically used for shells and fasteners in seismic acquisition systems. It is also widely utilized in marine applications due to its unique combination of wear and corrosion resistance.

Standardization and composition

UNS	/
EN	/
JIS	/
GB	T61740 (QAl9-5-1-1)
Cu	balance
Al	8.0-11.0%
Ni	4.0-6.0%
Fe	0.5-1.5%
Pb	≤ 0.04%
Si	≤ 0.10%
Zn	≤ 0.20%
Sn	≤ 0.10%

Physical properties①

Note①：The testing temperature is 20℃.

Density (g/cm³)	7.48
Metling temperature (℃)	1045
Electrical conductivity (%IACS)	9.0
Thermal conductivity (W / m x K)	49.9
Modulus of elasticity (GPa)	93

Fabrication Properties

Capacity for being cold worked	Fair
Capacity for being hot formed	Good

Mechanical Properties②

Note②：bedra technical standards

Temper	Diameter (mm)	Tensile Strength (MPa min.)	Yield Strength (MPa min.)	Elongation (A% min.)	Hardness (HV5 min.)
H02	8.0≤Φ≤12	650	500	12	220
M30	50≤Φ≤70	600	400	15	210
M05	170≤Φ≤200	600	270	13	/

Dimension Tolerance and Delivery Form

Note③：The tolerances listed in the table are specified as all plus or all minus. When tolerances are specified as plus and minus (±), half the values given.

			Straight bar
Diameter (mm)	Tolerance③ (mm)	Ovality (mm max.)	Length (mm max.)	Straightness (mm/m max.)
8≤Φ≤12	0.10	0.10	2500	1.0
50≤Φ≤70	1.0	0.30	2000	2.0
170≤Φ≤200	3.0	2.0	200	5.0