Interesting facts about durali

Are you interested in the characteristics of duraluminum alloys? Supplier Avlob offers to buy dural at a bargain price. The supplier guarantees the timely delivery of products to any address in Europe or abroad. Regular customers receive a discount discount. The price is the best in this segment.

Technical specifications

Common to all grades of duraluminium alloys is the mandatory presence of copper — its content varies between 3… 6%. The second place in the list of alloying additives belongs to magnesium — it in duralumin up to 2%. All the alloys of the group under consideration are prone to dispersion hardening during aging, which causes their high strength, as well as sufficiently high fatigue strength characteristics. Supplier Avlob offers to buy duralumin at a bargain price. The price is the best in this segment of rental.

Copper in the composition

The presence of copper adversely affects the resistance of the alloy against corrosive wear. Since duralumin copper smelts concentrate mainly on the grain boundaries, such alloys are particularly susceptible to pitting, which is intensified if an electrical stress is applied to the alloy. Copper also impairs the ability of duraluminum to surface anodization.

Chemical composition

The composition of the most common brands is presented below:

| | Cu | Mn | Mg | Si <</strong> | Fe <</strong>

D1… | 3.8−4.8 | 0,4−0,8 | 0,4−0,8 | 0.7 | 0.7

D16… | 3.8−4.9 | 0.3−0.9 | 1.2−1.8 | 0.5 | 0.5

D18… | 2.2−3.0 | <0.2 | 0.2-0.5 | 0.5 | 0.5

D19… | 3.8−4.3 | 0.5−1.0 | 1.7−2.3 | 0.5 | 0.5

D20… | 6.0−7.0 | 0,4−0,8 | <0.05 | 0.3 | 0.3

Aging

For natural aging, preforms and semi-finished products are kept at room temperatures for several days, and with decreasing temperature, aging proceeds less intensively. Artificial aging is used in the heat treatment of alloys of the D16 type, for this purpose the billets are heated in the furnace to temperatures of 185… 195 ° С.
Technologically, to perform heat treatment, the alloys are first heated to temperatures of 490… 5100 C, and then quenched in water. Then, if necessary, the blanks are aged.

Delivery, price

Are you interested in the characteristics of duraluminum alloys? Buy dural at an affordable price from the supplier Avgob today. The price is formed on the basis of European production standards. Supplier Avlob offers to buy dural at the best price either wholesale or retail.