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1、Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 02:37:02 MDTNo reproduction or networking permitted without license from IHS -,-,- JAPANESE I N DUSTR IAL STANDARD Translated and Published b
2、y Japanese Standards Association Stainless steel for building structure ICs 77.140.20 Descriptors : structures, stainless steels Reference number : JI$ G 4321 : 2000 (E) 15 S Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing,
3、Bernie Not for Resale, 03/14/2007 02:37:02 MDTNo reproduction or networking permitted without license from IHS -,-,- G 4321 : 2000 Foreword This translation has been made based on the original Japanese Industrial Standard established by the Minister of International Trade and Industry through delibe
4、rations at the Japanese Industrial Standards Committee according to the proposal of establishing a Japanese Industrial Standard from Japan Stainless Steel Association (JSSAYJapanese Standards Association (JSA), with a draft of Industrial Standard based on the provision of Clause 1, Article 12 of the
5、 Industrial Standardization Law. Date of Establishment: 2000-06-20 Date of Public Notice in Official Gazette: 2000-06-20 Investigated by: Japanese Industrial Standards Committee Divisional Council on Iron and Steel JIS G 4321 : 2000, First English edition published in 2001-06 Translated and publishe
6、d 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. O JSA2001 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or uti
7、lized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher. Printed in Japan Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie No
8、t for Resale, 03/14/2007 02:37:02 MDTNo reproduction or networking permitted without license from IHS -,-,- JAPANESE INDUSTRIAL STANDARD JIS G 4321 : 2000 C 0.08 max. 0.08 max. 0.08 max. Stainless steel for building structure Si Mn P S Ki Cr Mo N Others - - - 1.00 2.00 0.045 0.030 8.00 to 18.00 to m
9、ax. max. max. max. 10.50 20.00 1.00 2.50 0.045 0.030 7.50 to 18.00 to max. max. max. max. 10.50 20.00 0.30 max. 1.00 2.00 0.045 0.030 10.00 to 16.00 to 2.00 to - - max. max. max. max. 14.00 18.00 3.00 0.15to Nb 0.15 - 1 Scope This Japanese Industrial Standard specifies the stainless steel used for b
10、uilding structure (hereafter referred to as “steels”). I 0.08 2.00 max. max. 2 Normative references The standards listed in Attached Table 1 contain pro- visions which, through reference in this Standard, constitute provisions of this Standard. The most recent editions (including amendments) of the
11、standards shall be applied. - - - 1.50 0.040 0.040 8.00 to 18.00 to max. max. max. 11.00 21.00 3 Classification and symbols The classification of steels shall be four types and their symbols shalljbe as shown in Table 1. Table 1 Symbols of type Symbols of type SUS304A SUS304N2A SUS3 16A SCS13AA-CF 4
12、 Chemical composition 4 . 1 and the analytical value of cast shall be as shown in Table 2. Analytical value of cast For the steels, the test of 1 3 . 1 shall be carried out 4 . 2 Analytical value of product For the analytical value of product of steels, the test of 1 3 . 1 shall be carried out in ca
13、se of request from the purchaser and the permissible variation value shall be in accordance with JIS G 0321. The values of the element and chemical composition not specified in this table shall be subject to the agreement between the parties concerned with delivery. a Table 2 Chemical composition Un
14、it: % Symbol of type SUS304A SUS304N2A SUS316A SCSl3AA-CF 5 Mechanical properties For the steels, the test of 1 3 . 2 shall be carried out and the mechanical properties shall be as shown in Table 3. a Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employe
15、es/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 02:37:02 MDTNo reproduction or networking permitted without license from IHS -,-,- 2 G 4321 : 2000 Tensile strength N/mm2 520 min. Table 3 Mechanical properties Yield ratio (2) Elongation % Test piece Test piece % No. 4, No. 5, No. 10, No.
16、11, No. 12A, No. 12B, No. 12C, No. 13B No. 14A, No. 14B 60 max. (3) 40 min. 35 min. Symbol of type 520 min. 520 min. SUS304A 60 max. (3) 40 min. 35 min. 60 max. 40 min. 35 min. SUS304N2A SUS316A SCS 13AA-CF 0 . 1 % proof stress l) N/mm2 235 min. 325 min. 235 min. 235 min. 690 min. I 6 0 m a . ( ) I
17、35 min. 1 30min. Notes (1) The proof stress of 0.1 % shall be the quotient of the force (N) producing 0.1 % permanent elongation divided by the section area (mm2) at paral- lel part in tensile test, and the value obtained from the offset method in JIS Z 2241. (2) The yield ratio refers to the ratio
18、of 0.1 % proof stress to tensile strength. (2) When angle steels, flat steels, square steel pipes or circular steel pipes are used as cold formed, the value may be 70 % max. At this time, the sign -C shall be suffixed to the symbol of type. 6 Dimensional tolerances The dimensional tolerances on stee
19、ls shall be as fol- lows: Informative reference : The sectional shape, dimensions, unit mass and sectional characteristics of steels are shown in Annex. a) Hot-rolled H-sections The dimensional tolerance on hot-rolled H-sections shall be as shown in Table 4. Copyright Japanese Standards Association
20、Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 02:37:02 MDTNo reproduction or networking permitted without license from IHS -,-,- 3 G 4321 : 2000 Table 4 Dimensional tolerance of hot-rolled H-sections Unit: mm Tolerance f 3.0 Cla
21、ssification Nominal height: under 400 I+ 3.0 Height (II) Thick- ness Length Ortho- gonality (T) Bend Deviation of center ( S I 400 or over to and excl. 600 t 4.0 600 or over t 5.0 f 1.5 Under 16 16 or over to and excl. 25 t 2.0 t 2.5 25 or over to and excl. 40 t 3.0 40 or over Under 16 t 1.0 16 or o
22、ver to and excl. 25 f 1.5 22.0 25 or over to and excl. 40 40 or over k 2.5 7 m or under + 40 O Over 7 m Add 5 mm to the plus side of above tolerance for every increase of 1 m or fraction thereof in length. Nominal height: 300 or under 1.2 % of leg (B) or under. The minimum value of tolerance shall b
23、e 2.0 mm. Nominal height: over 300 1.5 % of leg (B) or under. The minimum value of tolerance shall be 2.0 mm. 0.20 % or under of length Nominal height: 300 or under Nominal height: over 300 0.10 % or under of length Nominal height: 300 or under f 3.0 t4.5 Nominal height: ove? 300 Remarks : Tolerance
24、s other than those in Table 4 shall be subject to the agreement between the parties concerned with delivery. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 02:37:02 MDTNo reproduction or n
25、etworking permitted without license from IHS -,-,- 4 G 4321 : 2000 e b) Steel plates and steel strip The dimensional tolerances of steel plates and steel strip shall be in accordance with JIS G 4304 and JIS G 4305. Hot-rolled equal leg angles The dimensional tolerance of hot-rolled equal leg angles
26、shall be in accordance with JIS G 4317. However, the tolerance on c) Classification of leg M x B ) 20 x 20 to 30 x 30 40 x 40 to 80 X 80 90 x 90 to 100 x 100 thickness shall be in accordance with Table 5. Thickness (t) 6 or under 9 or under 8 or over up to and incl. 9 Table 5 Tolerance on thickness
27、of hot- rolled equal leg angles Unit: mm Tolerance on thickness + 0.7 - 0.3 + 1.0 - 0 . 4 + 1.0 - 0.4 10 or over Remarks 1 Where expressed as a percentage, multiply the value of thickness (t) by the numerical value. 2 Tolerances other than those in Table 5 shall be subject to the agree- ment between
28、 the parties concerned with delivery. T i d) Hot-rolled channels The dimensional tolerance of hot-rolled channels shall be in accordance with Table 6. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 0
29、3/14/2007 02:37:02 MDTNo reproduction or networking permitted without license from IHS -,-,- 5 G 4321 : 2000 Under 50 Table 6 Dimensional tolerance of hot- e k1.5 rolled channels Unit: mm Orthogonality (T) Classification Tolerance 90 k 2.0“ Leg (B) Height (H) Thickness (t) 50 or over to and excl. 10
30、0 k 2.0 Under 100 I k1.5 Height: Under 7 under 130 7 or over to + 1 . 0 and excl. 10 I -0.4 Under 7 7 or over to and excl. 10 10 or over to c and excl. 16 Height: 130 or over + 0 . 9 - 0.5 + 1.1 - 0.5 + 1 . 4 - 0 . 6 Remarks 1 Where expressed as a percentage, multiply the value of leg (B) or height
31、(H) by the numerical value. 2 Tolerances other than those in Table 6 shall be subject to the agreement between the parties con- cerned with delivery. e) Rods and bars The dimensional tolerances on rods and bars shall be in ac- cordance with JIS G 4303 and JIS G 4318. However, the tolerances of the d
32、iameter or leg of stainless steel rods and bars shall be as shown in Table 7 and Table 8. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 02:37:02 MDTNo reproduction or networking permitted
33、 without license from IHS -,-,- 6 G 4321 : 2000 Classification ofthickness Diameter or leg 25 or under Over 25 and 35 or under Over 35 and 50 or under Over 50 and 80 or under Over 80 and 100 or under Table 8 Tolerance on thickness of flat steels Unit: mm Tolerance on diameter or leg + 0.5 - 0.3 + 0
34、. 6 - 0.4 + 0.7 - 0.5 + 1.0 - 0 . 6 + 1.3 - 0.7 20 or under Over 20 and 40 or under Classification of width 150 or under - 0.3 - 0.4 + 1.5 - 0.5 I -0.5 Remarks : Tolerances other than those in Table 8 shall be subject to the agreement between the a parties concerned with deliv- ery. f) Circular stee
35、l pipes The dimensional tolerance of circular steel pipes shall be in accordance with JIS G 3446 and JIS G 3468. However, the tolerance on thickness shall be as shown in Table 9. The dimensional tolerance of centrifu- gal casting steel pipes shall be in accordance with JIS G 5121. Copyright Japanese
36、 Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 02:37:02 MDTNo reproduction or networking permitted without license from IHS -,-,- 7 G 4321 : 2000 + 0.9 - 0.45 + 1.0 - 0.6 + 1.0 - 0.65 Table 9 Tolerance on t
37、hickness of circular steel pipes + 0.9 + 1.1 - 0.5 - 0.7 + 1.0 + 1.2 - 0.6 - 0.75 + 1.0 + 1.2 - 0.65 - 0.8 Unit: mm Thickness 2.15 or over to and excl. 3.15 Outside diameter - 0.3 - 0.35 3.15 or over to and excl. 4.00 + 0.9 - 0.35 1 -0.4 4.00 or over to and excl. 5.00 + 0.9 + 1.1 - 0.4 1 :0:95 1 -0.
38、6 5.00 or over to and excl. 6.00 6.00 or over to and excl. 8.00 8.00 or over to and excl. 10.00 10.00 or over to and excl. 16.00 + 1.2 - 0.85 + 1.0 - 0.7 16.00 or over to and excl. 25.00 - 0.8 - 0.8 - 0.95 25.00 or over to and excl. 40.00 I +8 % I +8 % I +8 % - 0.9 - 0.9 - 1.1 Remarks 1 Where expres
39、sed as a percentage, multiply the value of thickness by the numerical value. 2 Tolerances other than those in Table 9 shall be sub- ject to the agreement between the parties concerned with delivery. . g) Square steel pipes The dimensional tolerance of square steel pipes shall be in accordance with J
40、IS G 3466. However, the tolerance on thickness and the dimensions at the corner parts shall be as shown in Table 10 and Table 11. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 02:37:02 MD
41、TNo reproduction or networking permitted without license from IHS -,-,- 8 G 4321 : 2000 Thickness Outside diameter 2.15 or over to and excl. 3.15 3.15 or over to and excl. 4.00 4.00 or over to and excl. 5.00 300 or under Over 300 up to and incl. 400 + 0 . 9 + 0.9 - 0.3 - 0.35 + 0.9 + 0.9 - 0.35 - 0.
42、4 + 0.9 + 0.9 - 0.4 - 0.45 10.00 or over to and + 1.0 excl. 16.00 1 1 -0.7 5.00 or over to and excl. 6.00 6.00 or over to and excl. 8.00 8.00 or over to and 16.00 or over to and excl. 25.00 - 0.8 - 0.8 + 0 . 9 + 0.9 - 0.45 - 0.5 + 1.0 + 1.0 - 0.6 - 0.6 + 1.0 + 1.0 Remarks 1 Where expressed as a perc
43、entage, mul- tiply the value of thickness by the nu- merical value. 2 The tolerance on thickness shall be applied to the portion of flat plate. 3 Tolerances other than those in Table 10 shall be subject to the agreement be- tween the parties concerned with deliv- ery. exci. 10.00 I - 0.65 - 0.65 Thi
44、ckness (t) Under 8.00 8.00 or over to and excl. 25.00 Dimensional tolerance on corner parts (S) 2.5 t k 0.7 t 3.0tt0.7t Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 02:37:02 MDTNo reprod
45、uction or networking permitted without license from IHS -,-,- 9 G 4321 : 2000 7 Standard length The standard length shall be as follows: o a) b) Hot-rolled H sections shall be in accordance with JIS G 4317. Steel plates shall be in accordance with JIS G 4304 and JIS G 4305. c) d) e) f) Hot-rolled eq
46、ual leg angles shall be in accordance with JIS G 4317. Hot-rolled channels shall be in accordance with JIS G 4317. Rods and bars shall be in accordance with JIS G 4303 and JIS G 4318. Circular steel pipes shall be in accordance with JIS G 3446, JIS G 3468 and JIS G 5121. Square steel pipes shall be
47、in accordance with JIS G 3466. Cold-formed equal leg angles shall be in accordance with JIS G 4320. The calculation method of mass for steels shall be follows: g) h) 8 Mass a) The calculation method of mass for H-sections, angles, channels, circular steel o pipes, square steel pipes and cold-formed
48、equal leg angles shall be as shown in Table 12. Table 12 Calculation method of mass Calculation procedure Basic mass kglcm21m Section area cm2 Unit mass kglm Mass of one piece kg Total mass kg Calculation method Mass of 1 cm2 in section area and 1 m in length SUS304A, SUS304N2A 0.793 SUS16A 0.798 SCS13AA-CF: 0.775 The value obtained by the following calculation formula shall be multiplie