Sn Alloys and Babbit Powder

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

AP-B83 Babbit Powder:

Sn (babbit)-base AP-B83 powder is intended for application of antifriction coatings on parts, in particular, on heavy-loaded bearings.

Particle size: below 40 microns (with the content of the main cut of 95 % min), 40-100 microns (with the content of the main cut of 85 % min), or other sizes as agreed by the parties.

AP-Sn61Pb (POS 61) Brazing Powder:

This SnPb alloy powder is intended for tinplating and brazing.

Chemical composition and particle size of the powdermeet the requirements of GOST 21930-76, GOST 21931-76 or individual customer's specifications.

Particle size: below 71 microns (with the content of the main cut of 95% min) or other sizes as agreed by the parties.

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:

AP-B83 Babbit Powder
AP-Sn61Pb (POS 61) Brazing Powder

You can contact our sales managers for more details at:

export_polema@metholding.com,

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

05

chemical composition

Guaranteed chemical composition of AP-SnSb11Cu6 (Babbit B83) powder, wt.%

*Name*	Sn	Sb	Cu	Fe	Pb
				*max*
AP-SnSb11Cu6 (Babbit B83)	base	10-12	5.5-6.5	0.1	0.5
If requested by the customer, powder can be delivered with additional control of such impurities as: As, Zn, Bi, Al.

Guaranteed chemical composition of powder AP-Sn61Pb (POS 61), wt.%

*Name*	Sn	Pb	Sb	Cu	Bi	As	Fe	Ni	S	Zn	Al
*Name*	Sn	Pb	*max*
AP-Sn61Pb	59-61^*	balance	0.1	0.05	0.2	0.02	0.02	0.02	0.02	0.002	0.002
^*Powder can be produced with other limits in terms of Sn content, based on specifications.

06

miscellaneous

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

07

Application areas