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Stanislas

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+7 (905) 233-21-42

Supplier KMZ offers wire, tube, sheet, tape, round, aluminum brand AK-4, AK4−1 at economical price. Regular customers can take advantage of the discount discount. The provider ensures timely delivery of products to any email address. The price is the best in this segment of the rental.

Technical characteristics

Aluminium alloys brands AK-4 and AK4−1 are metals, machined forging. The main alloying addition is copper. Alloys are easily handled, providing after grinding with low surface roughness. After heat treatment these alloys become softer.

Treatment

Heat treatment: t° 510 °C for a long time to heat was completely homogeneous. Followed by quenching in water at a temperature of 90…100°C. Cold forging alloys is possible only in the annealed condition. The ideal temperature range for forging is 480…520°C. Aluminum Bicycle technology is well welded by arc welding or resistance welding. The hardness of the alloys can be improved by aging at 171 °C and aged for 8 to 10 hours.

Application

The production of parts of cylinders, aircraft jet engines and piston heads.

Chemical composition of alloy AK4−1, GOST 4784−97

Al Fe Si Mn Ni Cr Ti Cu Mg Zn Impurities
basis 0.8… 1.4 ≤0.35 ≤0.2 0.8… 1.4 ≤0.1 0.02… 0.1 1.9 2.7 … 1.2… 1.8 ≤0.3 ≤0,1

Physical characteristics

  • Density, kg/m3 — 2800;
  • Melting point, °C — 560…620;
  • Coefficient of thermal conductivity at room temperature, W/mgrad — 132 146…;
  • Coefficient of thermal expansion in the temperature range 20…100°C, µm/deg — 19,6 21,8…;
  • Specific heat, kJ/ggrad — …0,80 0,84.

Mechanical characteristics

  • The limit of strength, MPa 390 420…;
  • Yield strength, MPa — 350…400;
  • Relative tensile elongation, percent — 5 to 8;
  • The modulus of elasticity, GPA — 72…73;
  • Hardness on the Brinell hardness, HB, max — 115.

Buy

Supplier KMZ offers to buy wire, tube, sheet, tape, round, aluminum brand AK-4, AK4−1 at economical price. Regular customers can take advantage of the discount discount. The provider ensures timely delivery of products to any email address. The price is the best in this segment of the rental.

Supply, price

To by wire, pipe, sheet, tape, round, aluminum any brand provider KMZ can at an affordable price. The price is formed based on the European standards of production. Buy aluminum wire, pipe, sheet, tape, round any brand in stock at a reasonable price, you can wholesale or retail.