as 3830.4-1998 ferroalloys - specifications ferrosilicomanganese

7/31/2019 As 3830.4-1998 Ferroalloys - Specifications Ferrosilicomanganese

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AS 3830.41998

Australian Standard

FerroalloysSpecifications

Part 4: Ferrosilicomanganese


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This Australian Standard was prepared by Committee MN/6, Ferroalloys. It wasapproved on behalf of the Council of Standards Australia on 12 June 1998 andpublished on 5 August 1998.

The following interests are represented on Committee MN/6:

Australasian Institute of Mining and Metallurgy

Australian Foundry InstituteBureau of Steel Manufacturers of Australia

The Royal Australian Chemical Institute

Steel Reinforcement Institute of Australia

Revie w of Austra lian Stand ards. To keep abreast of progress in industry, Australian Standards aresubject to periodic review and are kept up to date by the issue of amendments or new editions asnecessary. It is important therefore that Standards users ensure that they are in possession of the latestedition, and any amendments thereto.Full details of all Australian Standards and related publications will be found in the Standards AustraliaCatalogue of Publications; this information is supplemented each month by the magazine The

Aust ralia n Stan dard, whic h subsc ribin g memb ers receive , and whic h give s deta ils of new publ icati ons,new editions and amendments, and of withdrawn Standards.Suggestions for improvements to Australian Standards, addressed to the head office of Standards

Aust ralia , are welco med. Noti ficat ion of any inacc uracy or ambig uity foun d in an Austr alian Stan dardshould be made without delay in order that the matter may be investigated and appropriate action taken.

This Standard was issued in draft form for comment as DR 97477.


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AS 3830.41998

Australian Standard



First published as AS 3830.4 1998.

Published by Standards Australia(Standards Association of Australia)1 The Crescent, Homebush, NSW 2140

ISBN 0 7337 2092 7


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AS 3830.4 1998 2

PREFACE

This Standard was prepared by the Standards Australia Committee MN/6, Ferroalloys to

provide specifications for ferrosilicomanganese.In preparing this Standard, reference was made to the following international Standards:

ISO 5447:1980 Ferrosilicomanganese Specification and conditions of delivery

ASTM A922-93 Specification for Silicon Metal

JIS G 2304-1986 Silicon-manganese

ISO 5447 is a very general document having limited commercial application to theAustralian industry. The following particular points are of relevance:

(a) Chemical analysis for the major elements, in this case manganese and silicon, mustcomply with specified concentration ranges. Material that does not fall within these

concentration ranges warrants a complaint. The ISO standard refers only to nominal

target concentrations.

(b) Many clauses of ISO 5447 make mention of agreements between the parties

concerned. Such statements in relation to the specifications render the documentunacceptable as an Australian Standard.

(c) The general terminology in ISO 5447 is unacceptable. Terms such as preferably;

other methods; may be used; may be agreed detract from the reasons for preparing

specifications.

The objective of this Standard is to prepare an appropriate Australian document which

clearly defines specifications and test methods to be used and reflects the real needs of

producers, traders and customers in the ferroalloys industry of Australia.

Copyright STANDARDS AUSTRALIA

Users of Standards are reminded that copyright subsists in all Standards Australia publications and software. Except where theCopyright Act allows and except where provided for below no publications or software produced by Standards Australia may bereproduced, stored in a retrieval system in any form or transmitted by any means without prior permission in writing fromStandards Australia. Permission may be conditional on an appropriate royalty payment. Requests for permission and informationon commercial software royalties should be directed to the head office of Standards Australia.

Standards Australia will permit up to 10 percent of the technical content pages of a Standard to be copied for useexclusively in-house by purchasers of the Standard without payment of a royalty or advice to Standards Australia.

Standards Australia will also permit the inclusion of its copyright material in computer software programs for no royaltypayment provided such programs are used exclusively in-house by the creators of the programs.

Care should be taken to ensure that material used is from the current edition of the Standard and that it is updated whenever theStandard is amended or revised. The number and date of the Standard should therefore be clearly identified.

The use of material in print form or in computer software programs to be used commercially, with or without payment, or incommercial contracts is subject to the payment of a royalty. This policy may be varied by Standards Australia at any time.


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3 AS 3830.4 1998

CONTENTS

Page

1 SCOPE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2 REFERENCED DOCUMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

3 DEFINITIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

4 CONSTITUTION OF CONSIGNMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

5 CHEMICAL COMPOSITION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

6 PRODUCT SIZING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

7 PACKAGING, TRANSPORTATION AND STORAGE . . . . . . . . . . . . . . . . . 5

8 TESTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

9 COMMERCIAL ASPECTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6


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AS 3830.4 1998 4

STANDARDS AUSTRALIA

Australian Standard



1 SCOPE This Standard relates to the principal grade of ferrosilicomanganese

currently used in Australia, as shown in Table 1. The Standard specifies the key technicaland commercial requirements for the supply of this product.

Sampling methods for ferroalloys, precision and bias in relation to sampling offerroalloys, and methods of chemical analysis for selected ferroalloys, including

ferrosilicomanganese, are covered by AS 3586 Parts 1 to 4, and AS 3587 Parts 1 to 6.

2 REFERENCED DOCUMENTS The following documents are referred to in this

Standard:

AS

3586 Ferroalloys Sampling

3586.1 Part 1: Particulate alloys

3586.2 Part 2: Molten alloys

3586.3 Part 3: Preparation of samples

3586.4 Part 4: Determination of quality variation, precision and bias

3587 Ferroalloys Chemical analysis

3587.1 Part 1: Determination of silicon content of ferrosilicon and ferrosilicomanganese

3587.2 Part 2: Determination of manganese content of ferromanganese and ferrosilico-

manganese

3587.3 Part 3: Det erm ina tio n of c hro mi um co nt ent o f fe rr oc hr omi um an d

ferrosilicochromium

3587.4 Part 4: Determination of carbon content Infrared method

3587.5 Part 5: Determination of sulfur content Infrared method

3587.6 Part 6: Determination of phosphorus content Spectrophotometric method

ISO

4551 Ferroalloys Sampling and sieve analysis

3 DEFINITIONS For the purposes of this Standard, the definitions below apply.

3.1 Customerany party that purchases ferrosilicomanganese.

3.2 Ferrosilicomanganese an alloy consisting mainly of silicon, manganese and iron,

produced by reduction smelting of silicon, manganese and iron-bearing ores and slags, andused mainly in the manufacture of iron and steel.

3.3 Producer any party that operates a process to produce ferrosilicomanganese forsale to other parties.

3.4 Supplierany party that sells ferrosilicomanganese.

4 CONSTITUTION OF CONSIGNMENTS Ferrosilicomanganese shall be supplied in

consignments constituted by the graded lot method.

A consignment constituted by this method consists of a number of melts, or mixed parts

of a number of melts, of ferrosilicomanganese of a single grade.

COPYRIGHT


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