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Rod, wire, pipe made of CuAl9Mn2


Grade analogue W. Nr. Aisi Uns En Order
BrAMts9-2 Buy from stock, view availability

Properties of CuAl9Mn2

Grade: tinless, pressure-treated bronze with a high resistance during reversal of stress.

Industrial usage: wear-resistant components, screws, trucks, parts of hydraulic installation.

Percentage composition of CuAl9Mn2

Element Content
P <0,01
Cu 86 — 90.5
Zn <1
Pb <0,03
Sn <0,1
Si <0,1
Fe <0,5
Mn 1.5 — 2.5
Al 8 — 10

Main properties

Alloy hardness: HB 10 -1 = 110 — 130 MPа

Point of melting = 1060°C

Coefficient of friction with lubricant = 0.006

Coefficient of friction without lubricant = 0.18

Mechanical characteristics of alloy CuAl9Mn2 at a temperature of 20°С


δ5 (%)


KCU kJ/m2

ψ % F.e. sT (MPa)


Soft alloy 20−40           400−500
Hard alloy 4−5           600−800

Physical characteristics of alloy CuAl9Mn2

R 10 9(Ohm-m)

C (J/(kg/degree))

r (kg/m3)

l (V/(m-Degree))

a 10 -6 (1/Degree)

E 10 -5 (MPa)

T (Degree)
110   7600 71,4   0,92 20
  461     17   100

Special feature of bronze CuAl9Mn2 is a significant optimization of mechanical properties. By grinding grain, iron provides a delay of recrystallization. In order to improve strength properties, aluminium-iron bronze is aged at a temperature of 250−300 ° C for 2−3 hours after completion of thermohardening at temperature of 950 ° C. It is used in a manufacture of valve seats, bushings, worms, gears, screw boxes in mechanical engineering. Nickel provides increasing of mechanical properties, heat resistance, corrosion resistance, recrystallization temperature. It also increases antifriction properties, resistance to low temperatures. Aluminium-iron bronzes are used for pin bushes, gears, valves, essential parts in aircraft industry, etc. Manganese provides increasing of corrosion and technological properties. Aluminium-iron bronzes can be perfectly pressure-treated in cold condition. They are used in a manufacture of worm screws, bushings, gears, which are operated at a temperature of up to 250 ° C in marine shipbuilding.

Description Identification Description Identification
— differential deposit at a process of the first crack appearing, % å — ultimate tensile strength (rupture strength), MPa σv
— maximum shear stress, ultimate torsional strength, MPa — elastic strength, MPa σ0,05
— ultimate bending strength, MPa σpr — conventional yield limit, MPa σ0,2
— fatigue endurance limit during bending test with symmetrical load cycle, MPa σ-1 — percentage elongation after rupture, % δ5,δ4,δ10
— fatigue endurance limit during torsion test with symmetrical load cycle, MPa J-1 — yield point (contraction), MPa σ0,05
— amount of load cycling n — relative shear, % v
— specific electrical resistance, Ohmm R and ρ — short ultimate tensile strength, MPa sv
— standard module of elasticity HPa E — contraction ratio, % ψ
— properties getting temperature, Degree T — impact hardness, which is established on specimens with concentrators in accordance with V and U types, J/cm2 KCU and KCV
— heating capacity of alloy (heat conduction coefficient), V/(m°С) l — permanent change of form — yield point (proportionality), MPa sT
— specific heat of alloy (temperature range is 20°С), [J/(kg-deg)] C — Brinell hardness HB
— density, kg/m3 pn and r — Vicker’s hardness HV
— linear thermal expansion coefficient (in a temperature range of 20°С), 1/°С a — Rockwell hardness C HRC
— long-time strength limit, MPa σtТ — Rockwell hardness B HRB
— module of elasticity at a process of torsional shear, HPa G — Shore hardness HSD

Buy CuAl9Mn2 rod, wire at a bargain price

«Auremo» CuAl9Mn2 rod, wire supplier offers to buy CuAl9Mn2 rod, wire. They comply with GOST and International Standards of quality. A wide selection of products, comprehensive consulting service, affordable CuAl9Mn2 rod, wire price and short-time delivery define a company’s image. The supplies are delivered directly from stock. It gives a vivid choice of products for customers and significant saving on stocks in storages and premises. «Auremo» bronze CuAl9Mn2 rod, wire supplier has all capabilities for manufacturing the high-quality products by individual orders. We can make products of off-gauge sizes and variants. We invite you to a partnership. Buy goods for affordable CuAl9Mn2 rod, wire price.