ABNT NBR 5601-2011-E

7 pages

ABNT NBR 5561:2011

3

03196ICS 77.120.20 ISBN 97822.01.2012

22.01.2012

5601

Stainless steels--classification by chemical composition

ABNT NBR

Second Edition

Valid from BRAZILIAN

STANDARD

BRAZILIAN TECHNICAL STANDARDS ASSOCIATION

Reference number -85-07--

©ABNT 2011 – All rights reserved.

© 2011 ABNT

ABNT NBR 5601:2011

ii

2003128 floor Fax: + 55 21 Tel.: + 55 21 3974-2300Rio de Janeiro-RJ All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from ABNT.ABNT

AV. Treze de Maio, 13--901---

3974-2346 abnt@abnt.org.br www.abnt.org.br

Tab le 5 - Chemical composition of super duplex stainless steels (austenite-ferrite) 5..........................

Tab le 7 - Permissib l e V ariations in chemical compositions of 5Tab le 6 - Chemical composition of steels hardened b y precipitation 5Tab le 4 - Chemical composition of duplex stainless steels(austenite-ferrite) 4Tab le 3 - Chemical composition of ferritic grades 4Tab le 2 - Chemical composition of martensitic stainless steels 3Tab le 1 - Chemical composition of austenitic stainless steels 2 7

61

111

1ABNT NBR 5601: 2011

Page

1.SCOPE ...........................................................................................................................................

2.

REQUIREMENTS...........................................................................................................................2.1A NALYSIS OF P AN ............................................................................................................................2.2V ERIFICATION A NALYSIS ...................................................................................................................2.3E LEMENTS OF CONTAMINATION (3)

OTHER REQUIREMENTS...................................................................................................................BIBLIOGRAPHY...................................................................................................................................Preface iv

.............................................................................................................................................................................Summary

................................................................................................................................................................................................................................................................................................................................................................

The Brazilian Association of technical standards (ABNT) is the National Forum for standardization. The Brazilian standards, whose content is the responsibility of the committees in Brazil (ABNT/CB), the Sectorial standardization bodies (ABNT/ONS) and Special Study commissions (ABNT/EEC), are drawn up by study Commissions (EC), formed by representatives of the sectors involved, one part: producers, consumers and neuters (universities, laboratories and others).

The technical documents shall be drawn up in accordance with ABNT rules of ABNT Policy, Part 2.

The Brazilian Association of technical standards (ABNT) draws attention to the possibility that some of the elements of this document may be subject to patent law. The ABNT must not be considered responsible for the identification of any patent rights.

The ABNT NBR 5601 was drafted in the Brazilian steel Institute (ABNT/CB-28), the Commission for Study of steel flat products (EC-28: 000.03). The project ran in national consultation as Edict n9 07, 14.07.2011 the 12.09.2011, with the number of ABNT NBR Project 5601.

This second edition cancels and replaces the previous Edition (ABNT NBR 5601: 1981), which has been technically revised.

The scope of this Brazilian standard in English is as follows:

Scope

This Standard establishes the designations and classifies the different types of stainless steels according to their chemical composition.

This Standard establishes five classes of stainless Steel:

the)class a: austenitic stainless Steel (not hardenable by heat treatment);

(b))class B: martensitic stainless steels (hardenable by heat treatment);

(c))class c: ferritic (non-hardenable by heat treatment);

d)class d: duplex and Super duplex stainless steels;

e)class e: Precipitation hardening stainless steels.BRAZILIAN STANDARD

ABNT NBR 5601:2011 Stainless steels--classification by chemical composition

1. Scope

1.1This standard establishes the names and classifies the different types of stainless steels in terms

of chemical composition.

1.2This standard defines five classes of stainless steels:

the)class a: austenitic stainless steels (not temperáveis by heat treatment);

(b))class B: Martensitic stainless steels (temperáveis by heat treatment);

(c))class c: ferritic (not temperáveis by heat treatment);

d)class d: duplex and Super duplex stainless steels;

e)class e: endurecíveis stainless steels for precipitation.

2. Requirements

2.1Analysis of Pan

2.1.1The analysis of pan is the term applied to the average chemical composition of a steel race, retrieved from samples taken during the casting or remelting process.

2.1.2Tables 1 to 6 1 set out the limits of the levels of the elements relating to the analysis of pan.

2.2Verification Analysis

2.2.1The analysis of verification is done on the semi-finished product or finished.

2.2.2The permissible variations in chemical composition specified must be in accordance with Table 7.

2.3Elements of contamination

2.3.1Residual chemicals can be found in all stainless steel. Elements considered dangerous for both humans and the environment shall be monitored and reported in accordance with current legislation.

2.3.2Any limitation required involving a special control on raw materials and additional analytical determinations must be previously agreed between customer and supplier.

1The values set out in the tables are identical to those set out in ASTM A240/A240M-04a, ASTM

A276/A276M, ASTM A5M, ASTM A5/A176.hemical composition of austenitic stainless steels Table 1

ferrite)chemical composition

types

of

steel

maxima values, except when the track or the minimum value is specified optional

Steel intended solely for flat applications

-

Table 2 hemical composition of Matensitic stainless steels

-

chemical composition

types

of

steel

maxima values, except when the track or the minimum value is specified optional

-

C omposicao quimica de acos inoxidaveis ferriticos

Table 3 -Table 4-chemical composition of duplex stainless steels (austenite)

chemical composition

chemical composition

types

of steel

types of steel

maxima values, except when the track or the minimum value is specified

maxima values, except when the track or the minimum value is specified

Table 5

Table 7-permissible Variations in chemical compositions

Table 6-chemical composition of the endurecíveis steels for precipitation

chemical composition

-Chemical composition of stainless steel superduplex(austenite-ferrite)

chemical composition types of steel

types of steel

3Other requirements

Other requirements not specified in this standard shall be agreed between customer and vendor, at the time of issuance of the purchase order.Bibliography

[1] ABNT NBR 9246: 1986,

Stainless steels-Standardized Series-Standardization

[2]ASTM A240/A240M-04a, Standard specification for chromium and chromium-nickel stainless

Steel plate, sheet, and strip for pressure vessels and for general applications

[3]ASTM A276/A276M, Stainless steel specification for stainless Steel bars and shapes

[4]ASTM A5/A5M, Standard specification for hot-and cold-finished holled age-hardening

stainless Steel bar and shapes

[5]ASTM A176, Standard specification for stainless and heat-resisting chromium Steel plate,

sheet, and strip