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Pipe, wire, rod made of CuAl9Fe4


Grade analogue W. Nr. Aisi Uns En Order
BrAZh9-4 CuAl10Fe1 Buy from stock, view availability

Alloy CuAl9Fe4

Grade: tinless pressure-treated bronze. It is resistant to corrosion, has a good mechanical, antifriction properties.

Industrial usage: aircraft engineering, mechanical engineering.

Percentage composition according to GOST 19175−78

Element Content
Mn ≤ 0,5
Si ≤ 0,1
Al 8 — 10
Fe 2 — 4
P ≤ 0,01
Pb ≤ 0,01
Sn ≤ 0,1
Cu 84.3 — 90
Zn ≤ 1

Main properties

Coefficient of friction with lubricant = 0.004

Coefficient of friction without lubricant = 0.18

Alloy hardness: HB 10 -1 = 100 — 120 MPа

Point of melting = 1040°C

Mechanical characteristics of CuAl9Fe4 grade at 20 °C

Mill-products ψ %

KCU kJ/m2

δ5 (%) sT (MPa) σv (MPa)
Hard alloy     4−6   500−700
Soft alloy     35−45   400−500

Special feature of aluminium bronzes are extra strength-to-density ratio and improved mechanical properties. Iron refines grains and provides delay of recrystallizing. In order to harden an alloy, aluminium-iron bronze is exposed to thermohardening (t° 950°C), age-hardening at a temperature of 250−300°С for 2−3 hours. It is used in a manufacture of valve seats, bushings, worms, gears, screw boxes in mechanical engineering. Silicon 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. Zinc provides increasing of corrosion and technological properties. Aluminium-iron bronzes can be perfectly pressure-treated in cold or hot conditions. They are used in manufacture of worm screws, bushings, gears, which operate at a temperature of up to 250 ° C in marine shipbuilding.

Physical characteristics of CuAl9Fe4 grade

C (J/(kg/degree))

r (kg/m3)

R 10 9(Ohm-m)

l (V/(mDegree))

a 10 -6 (1/Degree)

E 10— -5 (MPa)

T (Degree)
423       16,2   100
  7500 120 58   1,16 20
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 σ bend — 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 σc 0,05
— 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 is 20°С), [J/(kg-deg)] C — Brinell hardness HB
— density, kg/m3 pn and r — Vicker’s hardness HV
— lineal 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 at a bargain CuAl9Fe4 pipe, wire price

«Auremo» company offers to buy CuAl9Fe4 pipe, wire. Quality complies with GOST (all-Union State Standards) and International Standards. A wide selection of products, comprehensive consulting service, affordable CuAl9Fe4 pipe, wire price and short-time delivery define a company’s image. 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 CuAl9Fe4 pipe, 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.

CuAl9Fe4 pipe, wire supplier

«Auremo» CuAl9Fe4 pipe, wire supplier is a recognized expert on a market of bronze mill-products. We have offices throughout Eastern Europe, so we are able to make a prompt cooperation with business partners. Experience of our company allows you to easily buy bronze goods in wide selection by wholesale. We have the best price-quality ratio. All products are certificated. Buy CuAl9Fe4 pipe, wire in a moment. Delivery service will supply your order in the shortest possible time. Wire, rod, bar, tube of CuAl9Fe4 are always in stock. CuAl9Fe4 pipe, wire price is privileged for wholesale customers.