Jis g 3194 1998 dimensions, mass and permissible variations of hot rolled flat steel

JAPANESE INDUSTRIAL STANDARD Translated Japanese and Published Standards by Association } 6» 3194: G HS Dimensions, mass and permissible variations of hot rolled flat steel | - } ICS 77,140.50 ‘Dascriptors Reference : dimensions, weight (mass), tolerances (measurement), A : tolerances, mechanical form, steels number : JIS G 3194 tolerances, hot-working, dimensional m rolling, materials by ` Me6.Q ; i ~ : 1998 (E) 6S G 3194 : 1998 Foreword This translation has been made based on the original Japanese Industrial Standard revised by the Minister of International Trade and Industry through deliberations at Japanese Industrial Standards Committee in Consequently JIS accordance with the Industrial Standardization Law G 3194: 1966 is replaced with JIS G 3194: 1998 Date of Establishment: Date of Revision: 1998-11-20 in Official Gazette: Date of Public Notice Investigated by: 1966-07-01 Japanese Divisional JIS G 3194:1998, First English 1998-11-20 Industrial Standards Committee Council on Iron and Steel edition published in 1999-08 Translated and published by: Japanese Standards Association 4-1-24, Akasaka, Minato-ku, Tokyo, 107-8440 JAPAN In the event of any doubts arising as to the contents, the original JIS is to be the final authority © JSA 1999 be reproduced or All rights reserved Unless otherwise specified, no part of this publication may photocopying and utilized in any form or by any means, electronic or mechanical, including microfilm, without permission in writing from the publisher Printed in Japan JAPANESE INDUSTRIAL JIS STANDARD G 3194: 1998 Dimensions, mass and permissible variations of hot rolled flat steel Scope shall be as follows Scope ons as well as This Standard specifies dimensions, mass and permissible variati which is manuappearance, shape and allowable limit for hot rolled flat steel factured by hot rolling a) ns specified The scope and the select of the classification of the permissible variatio or in acd, standar product ve in this Standard shall be specified in the respecti supplier the cordance with agreement between the purchaser and b) Unless otherwise specified, class B in Table shall be applied Remarks: The corresponding International Standards are as following : Dimensions ISO 1035-3:1980 Hot-rolled steel bars—Part bars ISO 1035-4: 1982 Hot-rolled steel bars-—Part : Tolerances ISO 9034:1987 of flat Hot-rolled structural steel wide flats—Tolerances on dimensions and shape The following standard contain provisions which, through Normative references most recent reference in this Standard, constitute provisions of this Standard The applied be shall below edition of the standard indicated Rules for rounding off of numerical Definition The flat steel so called in this Standard shall be defined as the steel which had been hot rolled on four surfaces supplied by being cut into a prescribed Expression of dimension Standard for the thickness a) values JIS Z 8401 and width, dimension with rectangular cross-sections and is length The dimension of flat steel] shall be expressed in mm and for the length in m Standard dimensions shall be as follows Flat steel shall be defined as steel of which width is 250 mm max and thickness 100 mm max The cross-sectional standard dimension of flat steel shall comply with the Attached Table b) The standard length of flat‘steel shall be 3.5 m, and be 0.5 m for 4.0 m to 7.0 m and 1.0 m for more than 7.0 m taken Classification of permissible variations and the division permissible variations of flat steel shall comply with Table at intervals of Classification of G 3194: 1998 Table Classification items of permissible variations Classification of permissible variations Thickness t A B Cc _— Ta) A B — _ Tb) i A B Cc D 7e) € — B — — 7d) Angular distortion A B G _— Te) Flatness: perpendicular — B _ — TH) Flatness: longitudinal A B _ _ 702) — — — — 7g) Width w Length Corner drop direction of rolling direction of rolling Twist Shape and permissible variations of dimensions sible variations of dimensions are shown as follows a) | Reference The ` shape and permis- The permissible variations of thickness for flat steel shall comply with Table Table Permissible variations of thickness Unit : mm Class Thickness Less than | 6orover | 15 or over | 20 or over | 25 or over | 40 or over inel 12 incl 1Š inel 20 inel 25 "| incl 40 incl 100 Class A +05 +0.5 +0.5 +0.6 +1.0 +10 +1.5 Class B +0.3 +0.4 +05 +06 +0.8 +10 +1.2 Class C +0.3 +05 +11 +11 +11 +14 +21 -0.3 Remarks: b) 12 or over | úp to and | up to and | up to and | up te and | upto and | up to and ~- 0.3 —0.3 — 0.3 0.3 ~0.3 - 0.3 The location of thickness measurement shall be at an arbitrary inside point apart from longitudinal edge of flat steel The permissible variations of width for flat steel shall comply with Table Table Permissible of width variations Unit: Class mm Width Less than 50 “ 50 or more Class A +0.8 +2.0%, max + 10.0 Class B +0.8 +1.8%, max + 3.5 —> ¬ Fig.1 Application to width G 3194: 1998 The permissible variations of length for flat steel shall comply Table Permissible variations of length Unit: Class Tolerance Remarks: ~ a) ) mm Class A Class B Class C Class D + 200 + 100 +50 + 25 0 Tolerance on the negative side shall be treated in accordance with agreement between the purchaser and the supplier The permissible variations of corner drop c) for flat steel shall comply with Table Table Permissible variations of corner drop Class B Class 15 % or under of thickness Tolerance Remarks maximum The value shall be mm These variations shall be ap- : plied mm or over in thickness Exceeding the application range shall be in accordance with agreement between the pur- chaser and the supplier e) with Table The permissible variations of angular Fig Application to corner drop distortion for flat steel shall comply with Table Table Class Permissible variations of angular distortion Permissible variations Within 0.4 % in total length shall be permitted Within mm per meter of Class A optional length shall be provided i Within 0.3 % in total length shall be Class B permitted Within mm per meter of optional length shall be provided Class C pe "am È Within 0.25 % in total length shall be _| permitted TT” Within 2.5 mm per meter of TT = c) Angular distortion optional length shall be provided Fig Application to angular distortion G 3194 : 1998 f) The variations on flatness for flat steel 1) Table The variations on flatness for flat steel perpendicular to the direction rolling shall comply with Table 7 The variations on flatness perpendicular to the direction of rolling Class Class B Tolerance Not more than 0.3 % of width Remarks: w These variations shall be ap- T7 plied for the flat steel of 150 mm or over in width and under 50 mm in thickness However, the tolerances except CC these Application to flatness perpendicular to the direction of rolling Variations on flatness in the longitudinal direction of rolling Class Permissible variations Class A Within 0.7 % of total length with a maximum of 20 mm shall be permitted Within mm per meter of optional length shall be provided Class B * FT Within 0.3 % of total length with a maximum of 10 mm ( en —— [=f shall be permitted Flatness in the longitudinal Within mm per meter of optional direction of rolling length shall be provided Fig Application to flatness in the longitudinal direction a) ` The variations on flatness for flat steel in the longitudinal direction of rolling shall comply with Table Table ~| direction of rolling Fig.4 g) Z=