The difference between aluminum bronze ZCuAl9Fe4 and aluminum bronze ZCuAl9Fe4Ni4Mn2
Aluminum bronze ZCuAl9Fe4 and aluminum bronze ZCuAl9Fe4Ni4Mn2 both have high strength and good wear resistance, and can be used for parts with relatively high strength such as screws, nuts, copper sleeves, sealing rings and other wear-resistant requirements.
The aluminum content of aluminum bronze generally does not exceed 11.5%, and sometimes appropriate amounts of iron, nickel, manganese and other elements are added to further improve performance. Aluminum bronze can be strengthened by heat treatment, its strength is higher than tin bronze, and its resistance to high temperature oxidation is also better. Aluminum bronze containing iron and manganese elements has high strength and wear resistance. After quenching and tempering, the hardness can be improved. It has good high temperature corrosion resistance and oxidation resistance. It has good corrosion resistance in the atmosphere, fresh water and sea water. Good, the machinability is acceptable, it can be welded and is not prone to fiber welding, and the pressure processing under hot conditions is good.
QAl9-4 aluminum bronze
Brand: ZCuAl9Fe4
Standard: GB/T13808-1992
Characteristics and scope of use: It is an iron-containing aluminum bronze with high strength and friction reduction properties, good corrosion resistance, good pressure workability under hot conditions, and can be welded by electric and gas welders, but its brazing properties are not good, 9-4 Aluminum bronze can be used as a replacement for high-tin wear-resistant bronze.
chemical composition:
Copper Cu: balance
Tin Sn: ≤0.1
Zinc Zn: ≤1.0
Lead Pb: ≤0.01
Boron P: ≤0.01
Aluminum Al:8.0-10.0
Iron: 2.0-4.0
ManganeseMn: ≤0.5
Silicon Si: ≤0.1
Note: ≤1.7 (impurities)
Mechanical properties:
Tensile strength σb (MPa): ≥540
Elongation σ 10(%): ≥15
Elongation δ5 (%): ≥17
Hardness: 110-190HB
9-4-4-2 Aluminum Bronze
Brand: ZCuAl9Fe4Ni4Mn2
Standard: GB/T1176-1987
Characteristics and scope of use: It has high mechanical properties, good corrosion resistance in the atmosphere, seawater and fresh water, high corrosion fatigue strength, good castability, good wear resistance, and heat resistance below 400°C. It can be heat treated, has good welding performance, and is not easy to braze.
chemical composition:
Copper Cu: balance
Lead Pb: ≤0.02 (impurity)
Nickel: 4.0-5.0
Aluminum Al:8.5-10.0
Iron: 4.0-5.0
Manganese Mn: 0.8-2.5
Silicon Si: ≤0.15 (impurities)
Carbon C: ≤0.10 (impurities)
Note: The sum of impurities ≤ 1.0
Mechanical properties:
Tensile strength σb (MPa): ≥630
Yield strength σ (MPa): ≥250
Elongation δ5 (%): ≥16
Hardness: ≥160HB
