SIST ISO 4381:2015 PDF

Name: SIST ISO 4381:2015 — Plain bearings - Tin casting alloys for multilayer plain bearings
SKU: SIST ISO 4381:2015
Price: 51.9 EUR
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Plain bearings - Tin casting alloys for multilayer plain bearings

Название (английский):

SIST ISO 4381:2015

Plain bearings - Tin casting alloys for multilayer plain bearings

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 9
Дата публикации:: 20 февраля 2015 г.
ICS:: 21.100.10
Технический комитет:: ISEL - Mechanical elements

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Описание (английский):

ISO 4381:2011 specifies requirements for bearing metals based on tin casting alloys for multilayer plain bearings. The chemical composition and material properties refer to the original unprocessed material and are measured on representative samples. Testing results on final bearings can differ due to the influence of bearing production. Therefore, it is not intended that these results be compared with data given in ISO 4381:2011.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

ISO 4381:2011 - Plain bearings - Tin casting alloys for multilayer plain bearings specifies requirements for bearing metals based on tin casting alloys used in multilayer plain bearings. The standard defines the chemical composition and material properties of the original unprocessed casting alloy (representative samples). It notes that test results on finished bearings can differ because of production effects and therefore should not be directly compared with the raw-material data in ISO 4381:2011.

Key topics and requirements

Material scope: Tin-based casting alloys intended for multilayer plain bearings; principal alloy designated SnSb8Cu4.

Chemical composition: Element limits are specified (example: Sb 7–8 %, Cu 3–4 %, remainder Sn) and strict impurity limits (Pb, As, Bi, Fe, Al, Zn, Cd, total others). Chemical analysis is decisive for acceptance.

Material properties: Typical values provided for designers, measured on the unprocessed material. Included properties:

Brinell hardness at 20 °C and 100 °C (measured per ISO 4384-2)
Tensile and compressive yield stress and tensile strength at 20 °C (typical mean values)
Bond strength (to be assessed per ISO 4386-2)
Rotating bar bending fatigue (tested according to ISO 1143)
Linear thermal expansion, melting and casting temperatures, and density

Designation: Example format - Bearing metal ISO 4381 - SnSb8Cu4.

Selection guidance: Annex A provides practical guidance on use and recommends minimum mating-shaft hardness (for SnSb8Cu4 the shaft minimum is 160 HB) to avoid welding under operating conditions. Lubrication and working conditions affect shaft material choice.

Applications and users

Bearing designers and mechanical engineers working on multilayer plain bearings

Manufacturers of bearing alloys and multilayer bearing components (casting, bonding, machining)

Quality and inspection personnel performing material acceptance testing for tin casting alloys

OEMs in heavy industry (e.g., rolling mills), automotive, and machinery where tin-based bearing layers (good conformability, embeddability and high sliding performance) are specified

Practical use cases include selection of alloy for high-load sliding surfaces, wrapped bushes, thin-walled liners (up to ~3 mm), and thrust washers where SnSb8Cu4 properties are advantageous.

Related standards

ISO 4384-2 - Hardness testing of bearing metals (solid materials)

ISO 4386-1, -2, -3 - Testing and inspection of metallic multilayer plain bearings (ultrasonic, destructive bond testing, penetrant testing)

ISO 1143 - Rotating bar bending fatigue testing

Keywords: ISO 4381:2011, tin casting alloys, SnSb8Cu4, multilayer plain bearings, bearing metals, chemical composition, Brinell hardness, bond strength.

SIST ISO 4381:2015 PDF

Abstract

Похожие стандарты

Overview

Key topics and requirements

Applications and users

Related standards

Технические детали

ISO 4381:2011

Plain bearings — Tin casting alloys for multilayer plain bearings

ISO 4384-2:1982

Plain bearings — Hardness testing of bearing metals — Part 2: Solid materials

SIST ISO 4386-2:2020

Plain bearings - Metallic multilayer plain bearings - Part 2: Destructive testing of bond for bearing metal l…

BS ISO 11437:2018

Nickel alloys. Determination of lead. Electrothermal atomic absorption spectrometric method.

SIST ISO 4386-1:2020

Plain bearings - Metallic multilayer plain bearings - Part 1: Non-destructive ultrasonic testing of bond of t…