Zn and ZnAl Alloys for Coatings

01

Description

JSC POLEMA, Russia's largest manufacturer of metal powders, offers a diverse range of powder alloys and pure metals produced by various methods, including high-pressure gas and water atomizing, oxide reduction, and mechanical grinding.

Recently, the company has been actively implementing new technical solutions for gas atomizing, which significantly improve the morphology of particles, reduce the number of satellites, and increase the fluidity of powders and the quality of weld coatings.

Atomized powders produced by JSC POLEMA are classified into two groups: powders for coatings and structural powders.

The first group includes over 200 types of powders for coatings using various methods, including self-fluxing nickel, iron, and copper alloys, tool steels, high-carbon and low-carbon steels and alloys, corrosion-resistant and heat-resistant steels and alloys, as well as tin- and zinc-based composite powders and alloys.

The variety of available powders for coatings, used in high-speed, detonation, gas-flame, and plasma spraying, gas-powder, plasma, induction, and laser welding, allows to solve specific problems of surface hardening and effective protection against wear and corrosion of machines and equipment parts operating under elevated temperatures, high mechanical stress, and with abrasive substances and in aggressive environments.

The second group includes structural powders, such as pressed powders of pure metals (chromium, molybdenum, tungsten, nickel, and titanium), copper-based alloys (bronze and brass), stainless steels, special alloys with high magnetic permeability (permalloys), and materials for shot jet processing of parts (tool steels).

Powders of this group are used for making sheet rolled products, bars, and non-ferrous and refractory metal forgings, tools, sintered and deformed parts, composite materials used in electrical engineering, electronics, tool engineering, machine engineering, aerospace industry, nuclear power engineering, vehicles, filters, gas absorbers, and other engineering areas.

02

specifications

Zinc powders and their alloys are used to protect equipment, tanks, reservoirs, pools, pipelines, heat exchangers, bridges, hydraulic structures, power equipment, ship hulls, and other metal structures from continuous and spot corrosion. The powder consumption for spraying on metal surfaces to create a 200-micron coating is approximately 1.7-1.8 kg/m. Manual gas-flame burners or mechanized spraying equipment are used for spraying.

A reliable way to protect carbon and low-alloy steel structures from corrosion is to apply Zn-Al alloy coatings onto their surfaces. Gas-thermal Zn-Al coatings, sprayed using AP-ZnAl16 powder, effectively protect structures and equipment operating in the atmosphere, fresh water, and seawater. The coating service life depends on the thickness of the sprayed layers and can last for several decades.

03

advantages

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Profound production experience

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Strict quality control of all produced materials

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In-house research laboratory

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Flexible discount system

04

Product names

Below are examples of product names:

Zn-base powder PG-AN32;
Zn-Al alloy powder AP-ZnAl16 (PG-AN27)

You can contact our sales managers for more details at:

export_polema@metholding.com,

tel.: +7(4872)25-06-76.

05

chemical composition

Chemical composition of Zn powder PG-AN32:

*Name*	Zn	Fe	Cu	Ti	Pb
PG-AN32 gas-atomized	base	0.1 max	0.02 max	0.02 max	0.02 max

PSD of PG-AN32 (base cut), micron: 0-40; 40-100; 50-160.

Chemical composition of ZnAl alloy powder AP-ZnAl16 (PG-AN27):

*Name*	Zn	Al	Fe	Cu	Ti	Pb
AP-ZnAl16 (PG-AN27) gas-atomized	base	16	0.1 max	0.02 max	0.02 max	0.02 max

PSD of AP-ZnAl16 (PG-AN27) (base cut), micron: 40-80, 40-160; 140-315.

06

miscellaneous

If required by customers, powders are made with other particle sizes.

07

Application areas