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Zinc-based alloys
- Chemical composition of the casting zinc alloys
- Field of application of the casting zinc alloys
- Chemical composition of the antifriction alloys
- Field of application of the antifriction alloys
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Industrial zinc alloys has been developed based on the Zn—Al and Zn—Al—Cu systems. Almost all zinc alloys contain magnesium addition (up to 0,1%), that allows to raise size stability of cast products and to increase corrosion resistance of the alloys. Zinc alloys are divided into casting and antifriction ones.
| Grade | Base components | ||||
|---|---|---|---|---|---|
| Al | Cu | Mg | Fe | Zn | |
| ZnA14A* | 3,5–4,5 | – | 0,02–0,06 | – | Basis |
| ЦА4 о | 3,5–4,5 | – | 0,02–0,06 | – | |
| ЦА4 | 3,5–4,5 | – | 0,02–0,06 | – | |
| ZnA14Cu1A* | 3,5–4,5 | 0,7–1,3 | 0,02–0,06 | – | |
| ЦА4М1о | 3,5–4,5 | 0,7–1,3 | 0,02–0,06 | – | |
| ЦА4М1 | 3,5–4,5 | 0,7–1,3 | 0,02–0,06 | – | |
| ЦА4М1в | 3,5–4,5 | 0,6–1,3 | 0,02–0,10 | – | |
| ZnA14Cu3A* | 3,5–4,5 | 2,5–3,7 | 0,02–0,06 | – | |
| ЦА4М3 о | 3,5–4,5 | 2,5–3,7 | 0,02–0,06 | – | |
| ЦА4М3 | 3,5–4,5 | 2,5–3,7 | 0,02–0,06 | – | |
| ЦА8М1 | 7,1–8,9 | 0,70–1,40 | 0,01–0,06 | – | |
| ЦА30М5 | 28,5–32,1 | 3,8–5,6 | 0,01–0,08 | 0,01–0,5 | |
| Gradeв | Addition, not more than | ||||||
|---|---|---|---|---|---|---|---|
| Cu | Pb | Cd | Sn | Fe | Si | Pb + Cd + Sn | |
| ZnA14A* | 0,06 | 0,004 | 0,003 | 0,001 | 0,06 | 0,015 | 0,007 |
| ЦА4 о | 0,06 | 0,005 | 0,003 | 0,001 | 0,06 | 0,015 | 0,009 |
| ЦА4 | 0,06 | 0,01 | 0,005 | 0,002 | 0,07 | 0,015 | – |
| ZnA14Cu1A* | – | 0,004 | 0,003 | 0,001 | 0,06 | 0,015 | 0,007 |
| ЦА4М1о | – | 0,005 | 0,003 | 0,001 | 0,06 | 0,015 | 0,009 |
| ЦА4М1 | – | 0,01 | 0,005 | 0,002 | 0,07 | 0,015 | – |
| ЦА4М1в | – | 0,02 | 0,015 | 0,005 | 0,12 | 0,03 | – |
| ZnA14Cu3A* | – | 0,004 | 0,003 | 0,001 | 0,06 | 0,015 | 0,007 |
| ЦА4М3 о | – | 0,006 | 0,003 | 0,001 | 0,06 | 0,015 | 0,009 |
| ЦА4М3 | – | 0,01 | 0,005 | 0,002 | 0,07 | 0,015 | – |
| ЦА8М1 | – | 0,01 | 0,006 | 0,002 | 0,10 | 0,015 | – |
| ЦА30М5 | – | 0,02 | 0,016 | 0,01 | 0,075 | – | |
Notes:
- On customer’s request mass concentration of copper as an alloying element can be up to 0,10% in the alloy materials of grades ZnA14A, ЦА4-о, ЦА4
- Upon agreement between producer and customer the alloy materials of grade ЦА4М3о may contain mass concentration of tin up to 0,002%, cadmium – up to 0,004% at total content of lead, cadmium and tin being not more than 0,009%.
- On customer’s request mass concentration of lead should not exceed 0,006% in the alloy materials of grades ЦА4, ЦА4М1 and ЦА4М3
- 4. The chemical composition of the alloy materials is determined in accordance with GOST 25284.0–GOST 25284.8. It is allowed to control the chemical composition by using other methods, which ensure accuracy being not less than the one indicated in the standards above. In case of controversy in chemical composition analysis, the control is carried out in conformity with GOST 25284.0–GOST 25284.8.
| Grade | Features | Field of application |
|---|---|---|
| ZnA14A | Good castability, high corrosion resistance, size stability | For casting parts of the devices, requiring size stability, in motor-car, tractor, electrical and other branches of industry |
| ЦА4 о | Good castability, high corrosion resistance, size stability | |
| ЦА4 | As for ЦА4 о grade, but with less corrosion resistance | |
| ZnA14Cu1A | Good castability, high corrosion resistance, almost no size variability during natural aging | For casting basic and decorative parts as well as fittings, not requiring high accuracy, in motor-car, tractor, electrical and other branches of industry |
| ЦА4М1 о | Good castability, high corrosion resistance, almost no size variability during natural aging | |
| ЦА4М1 | As for ЦА4М1 о grade, but with less size stability |
For casting basic and decorative parts as well as fittings, not requiring high accuracy, in motor-car, tractor, electrical and other branches of industry |
| ЦА4М1в | Is inferior to the above mentioned grades of this group in processing characteristics and running ability | For casting noncritical parts in various branches of industry |
| ZnAl4Cu3A | Good castability, high strength, good corrosion resistance, size stability up to 0,5% | For casting parts, requiring high accuracy, in motor-car and other branches of industry |
| ЦА4М3 о | Good castability, high strength, good corrosion resistance, size stability up to 0,5% | |
| ЦА4М3 | As for ЦА4М3 о grade, but with less corrosion resistance | |
| ЦА30М5 | Are designated for replacement of the standard antifriction alloy ЦАМ10-5, and surpass it considerably in mechanical properties and wearing capacity | Bearing brasses, bushings of the balance suspension, worm gears, bearing cages |
| ЦА8М1 | As for ЦА4М1 grade, but with higher strength properties | In motor-car, tractor, electrical and other branches of industry |
| Grade | Mass concentration, % | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Base components | additives, not more | ||||||||
| Al | Cu | Mg | Zn | Pb | Fe | Sn | Cd | Si | |
| ЦАМ 9-1,5 | 9,0-11,0 | 1,0-2,0 | 0,03-0,06 | Basis | 0,02 | 0,10 | 0,01 | 0,015 | 0,03 |
| ЦАМ 10-5 | 9,0-12,0 | 4,0-5,5 | 0,03-0,06 | Is the same | 0,02 | 0,10 | 0,01 | 0,015 | 0,03 |
ЦАМ 4-1; ЦАМ 4-3; ЦАМ 4-1о; ЦАМ 9-1,5; ЦАМ 10-5; ЦА 4; ЦА 4о alloys are designated for production of castings, manufactured for national economy and export, for friction bearings. They are used in cast and deformed state in the friction assemblies, which temperature does not exceed 80-100 degrees.
| Designation | Grade (correspondence) |
Product | Weight of 1 pcs of product | Note (packing) | Country of origin | Storehouse |
|---|---|---|---|---|---|---|
| Primary zinc-based alloys | ЦАМ 4-1 ЦАМ 4-3 ЦАМ 4-1о ЦАМ 9-1.5 ЦАМ 10-5 |
Ingot | 22-24 kg | Pack 500 kg (+/- 10%) | Ukraine | on demand |
| Primary zinc-based alloys | ЦА 4 ЦА 4о |
Ingot | 22-24 kg | Pack 500 kg (+/- 10%) | Ukraine | on demand |
* Note: All abbreviations are given in Russian transcription/ as they are written in GOST (The state Standarts)