Range
of alloys

Moston 
designation

Chemical
Composition%

Mechanical
Properties

Properties
and Uses

Cu Al 9

M-11

Al 8-10
Cu bal.

GC/GZ:
Rm* 450
Rp 0,2* 180
A5* 25
HB* 105

good corrosion resistance
to se water and wear resistant

Cu Al 10 Fe

M-12

Cu min. 83,0
Al 8,0-11,0
Fe 2,0-4,0

G:
Rm* 550
Rp 0,2* 200
A5* 15
HB* 115

Gun mountings & slides, landing gear parts, pickling tank & mild alkali appls. marine engine and propellers

Cu Al 9 Ni

M-13

Cu min. 82,0
Al 8,5-10,0
Ni 1,5-4,0
Fe 1,0-3,0

GZ:
Rm* 600
Rp 0,2* 250
A5* 20
HB* 120

Valve guides & seals in aircraft engines bushings, worm gears, pickling hooks corrosion resistant parts

Cu Al 10 Ni

M-14

Cu min. 76,0
Al 8,5-11,0
Ni 4,0-6,5
Fe 3,5-5,5

GC/GZ:
Rm* 700
Rp 0,2* 300
A5* 13
HB* 160

Fasteners, nuts, shafts, propeller
blades, valve bodies, worm bushings worm wheels, gears, wear plates, valves in contact with sea waters, propeller hub, elbows

Cu Al 11 Ni

M-15

Cu min. 73,0
Al 9,0-12,3
Ni 5,0-7,5
Fe 4,0-7,0

GZ:
Rm* 750
Rp 0,2* 400
A5* 5
HB* 185

Most commonly used for heavy duty bushings, bearings, gear blanks, form rolls, pump & various machine tools, aircraft parts & ordinance

Cu Al 8 Mn

M-16

Cu min. 82,0
Al 7,0-9,0
Mn 5,0-6,5
Ni 1,0-2,0

GZ:
Rm* 450
Rp 0,2* 200
A5* 30
HB* 105

Corrosion & oxidation resistant applications, low conductivity & permeability, machinery parts, light duty gears and machine propellers

GC
GZ 
G  

Continuous Casting
Centrifugal Casting
Sand Casting

Rm
Rp 0,2
A5
HB

Tensile strength in N/mm2
Yield stress in N/mm2
Elongation in %
Hardness Brinell