GB 11263-2010 English

ICS 77.140.70 H 44

National Standard of People’s Republic of China 中 华 人 民 共 和 国 国 家 标 准 GB/T 11263-2010 Replaces GB/T 11263-2005

Hot-rolled H and cut T section steel 热轧 H 型钢和剖分 T 型钢

Issued on 2010-12-23

Effective date: 2011-09-01

Issued by General Administration of Quality Supervision, Inspection and Quarantine of People’s Republic of China and China National Standardization Committee

People’s Republic of China National Standard Hot-rolled H and cut T section steel GB/T 11263-2010 * Issued by China Standard Publishing Company No. 16, North San Lihe Street, near Fu Xing Men, Beijing. Postal code: 100045 Website: www.spc.net.cn Tel. 68523946 68517548 Printed by Qinhuangdao Printing-Standard Press of China Distributed by Xinhua bookstores in various districts * Opening book 880×1230 1/16 Printing page 1.5 Number of character 38000 First edition in July, 2011; first print in July, 2011 * Book number: 155066 1-42092 Please contact our press for printing or binding error. Proprietary and rights are reserved Complaint hot-line: (010)68533533

GB/T 11263-2010

Foreword This standard is drafted according to the rules provided in GB/T 1.1-2009. This standard is non-equivalent with JIS G 3192-2008 Dimensions, mass and permissible variations of hot rolled steel sections. This standard replaces GB/T 11263-2005 Hot-rolled H and cut T section steel. Compared with GB/T 11263-2005, the main difference with this standard is as follows: ——Add specifications of four series models of H450× 150, H475 × 150, H500× 150 and H625× 200 as well as H 298× 201× 9× 14 of H300 × 200 series. ——Add HP series and thickness dimension requirements. --Adjust sectional area, theoretical weight and sectional characteristic parameters, etc. --Add flange bending and flange leg side outer edge passivation requirements in the part of H-steel dimension and allowable deviation of appearance. ——Annex B updates newly added I-section steel and H-section steel models and cross-sectional characteristic parameter comparison. ——Add annex C to specify the size, cross-sectional area, theoretical weight and section properties of super-thick and extra-weight H-section steel. Compared with JIS G3192-2008, the main difference is a follows: ——The H -section steel is divided into four categories of wide flange, middle flange, narrow flange and thin wall. ——Add 19 models of thin-wall type. ——Add such 10 series models as H450× 150, H475 × 150, H500× 150, H550× 200, H550× 300, H625× 200, H650× 300, H750× 300, H850× 300 and Hl000× 300 and other 19 specifications. ——Add part of cut T-section steel model series. ——In table 3, "less than 5mm" column is added for thickness t1 and the allowable deviation is ±0.5mm; "less than 5mm" column is added for thickness t2 and the allowable deviation is ±0.7mm; newly added flange leg outer edge passivation requirements. ——Add requirements for technical requirements, test methods, inspection rules, packaging, marking, quality certificates. ——Remove original Annex A, add defect repair welding of H-section steel and T-section steel in Annex A. ——Add Annex C to specify the size, cross-sectional area, theoretical weight and section properties of agreed super-thick and extra-weight H-section steel. The Annex A, Annex B and Annex C are all informative annexes. The standard is proposed by China Steel Industry Association. This standard is under centralized management of National Steel Standardization Technical Committee (SAC/TC 183). This standard is drafted by: Maanshan Iron & Steel Co., Ltd., Research Institute of Metallurgical Industry Information Standards, Laiwu Iron and Steel Group Co., Ltd., Hebei Jinxi Iron and Steel Group Co., Ltd., Jiangsu Huning Steel Machinery Co., Ltd., Rizhao Iron & Steel Co., Ltd., MCC Building Research Institute Co., Ltd., Anshan Baode Iron & Steel Co., Ltd. The standard is mainly drafted by: Wu Baoqiao, Wang Limin, Xi Tie, Feng Chao, Du Chuanzhi, Zhao Yichen, Zhang Baojun, Wu Mingchao, Liu Baoshi, Gao Jiling, Wang Hongxin, Wu Meizhuang, Liu Funing, Wang Kefeng and Liu Tao This standard successively replaces the following standards ——GB/T 11263—1998,GB/T 11263—2005.

GB/T 11263-2010

Hot-rolled H and cut T section steel 1 Scope This standard specifies the order content, classification, code, size, shape, weight and tolerance, technical requirements, test methods, inspection rules, packaging, labeling, quality certificate of hot-rolled H-section steel and cut T-section steel made from hot-rolled H-section steel. This standard applies to hot-rolled H-section steel (hereafter shorted for H-section steel) and cut T-section steel made from H-section steel. 2. Reference documents The following standards contain provisions which, through reference in this text, constitute provisions of this standard. For dated references, only the dated edition applies to this document. For all the undated references, only the latest edition (including all the amendments) applies. GB/T 222 Steel product chemical composition allowable deviation GB/T 228.1 Metal materials Tensile test Part 1: Room temperature test method (GB/T228.1—2010,ISO 6892—1:2009,MOD) GB/T 229 Metal material Charpy pendulum impact test method (GB/T229 —2007,ISO 148-1:2006, MOD) GB/T 232 Metal material Bending test method (GB/T 232-1999, eqv ISO 7438:1985(E)). GB/T 700 Carbon structural steel GB 712 Hull structural steel GB/T 714 Bridge structural steel GB/T 1591 Low-alloy high-strength structural steel GB/T 2101 General provisions for inspection, packaging, marking and certification of section steel GB/T 2975 Sampling location and sample preparation for steel and steel product mechanical property test (GB/T 2975-2008, eqv ISO 377:1997) GB/T 4171 Weather resistant structural steel GB/T 4336 Carbon steel and low-alloy steel Spark source atomic emission spectrometry method (conventional method) GB/T 20066 Sampling method and sample preparation for determination of chemical composition in steel and iron (GB/T 20066-2006, ISO 14284:1998, IDT) 3. Ordering content The contract of order subject to this standard shall include the following technical content: a) Product name and classification; b) Designation; c) Number of this standard; d) Specification; e) Delivery length; f) Weight and quantity; g) Other special requirements proposed by the purchaser, such as: special specification requirements and special surface quality requirements, etc. 1

GB/T 11263-2010

4. Classification and code 4.1 H-section steel is divided into four categories and its code is as follows: Wide flange H-section steel HW (W represents the initial letter of English word "Wide") Middle flange H-section steel HM (M represents the initial letter of English word "Middle") Narrow flange H-section steel HN (N represents the initial letter of English word "Narrow") Thin-walled H-section steel HT (T represents the initial letter of English word "Thin"). 4.2 Cut T-section steel comprises the following three types and their codes are as follows: Wide flange cut T-section steel TW (W represents the initial letter of English word "Wide") Middle flange cut T-section steel TM (M represents the initial letter of English word "Middle") Narrow flange cut T-section steel TN (N represents the initial letter of English word "Narrow")

5. Dimension, appearance, weight and allowable deviation 5.1 Size and representation method 5.1.1 Refer to Fig.1 and Fig. 2 for the sectional drawing and marking symbols of H-section steel and cut T-section steel.

H——Height;

h——Height;

B——Width;

B——Width;

t1——Web thickness;

t1——Web thickness;

t2——Flange thickness;

t2——Flange thickness;

r——Radius of rounded angle

r——Radius of rounded angle Cx——Center of gravity.

Fig.1 H-section steel sectional drawing

Fig.2 Cut T-sectional steel sectional drawing

5.1.2 Cross-section dimensions, cross-sectional area, theoretical weight and cross-section characteristic parameters of H-section steel and cut T-steel shall comply with the specifications of Table 1 and Table 2 respectively. According to the requirements of purchaser and the agreement reached by supplier and purchaser, the products that satisfy the requirements of Annex C or other parameters can be supplied. 5.1.3 The delivery length of H-section steel and cut T-section steel shall be marked in the contract and the common specified length is 12m and products of other specified length can also be supplied according to the requirements of purchaser. 2

GB/T 11263-2010

Table 1 Size, cross-sectional area, theoretical weight and cross-sectional features of H-section steel

Class

Model (Height× width)/ (mm× mm)

Moment of inertia/cm4

t2

r

100×100

100

100

6

8

8

21.58

16.9

378

134

4.18 2.48

75.6

26.7

125×125

125

125

6.5

9

8

30.00

23.6

839

293

5.28 3.12

134

46.9

150×150

150

150

7

10

8

39.64

31.1

1620

563

6.39 3.76

216

75.1

175×175

175

175

7.5 11

13

51.42

40.4

2900

984

7.50 4.37

331

112

200

200

8

12

13

63.53

49.9

4720

1600

8.61 5.02

472

160

*200 204

12

12

13

71.53

56.2

4980

1700

8.34 4.87

498

167

*244 252

11

11

13

81.31

63.8

8700

2940

10.3 6.01

713

233

250

250

9

14

13

91.43

71.8

10700

3650

10.8 6.31

860

292

*250 255

14

14

13

103.9

81.6

11400

3880

10.5 6.10

912

304

*294 302

12

12

13

106.3

83.5

16600

5510

12.5 7.20

1130

365

300

300

10

15

13

118.5

93.0

20200

6750

13.1 7.55

1350

450

*300 305

15

15

13

133.5

105

21300

7100

12.6 7.29

1420

433

*338 351

13

13

13

133.3

105

27700

9380

14.4 8.38

1640

534

*344 348

10

16

13

144.0

113

32800

11220 15.1 8.83

1910

646

*344 354

16

16

13

164.7

129

34900

11800 14.6 8.48

2030

669

350

350

12

19

13

171.9

135

39800

13600 15.2 8.88

2280

776

*350 357

19

19

13

196.4

154

42300

14400 14.7 8.57

2420

808

*388 402

15

15

22

178.5

140

49000

16300 16.6 9.54

2520

809

*394 398

11

18

22

186.8

147

56100

18900 17.3 10.1

2850

951

*394 405

18

18

22

214.4

168

59700

20000 16.7 9.64

3030

985

400

400

13

21

22

218.7

172

66600

22400 17.5 10.1

3330

1120

*400 408

21

21

22

250.7

197

70900

23800 16.8 9.74

3540

1170

*414 405

18

28

22

295.4

232

92800

3100

17.7 10.2

4480

1530

*428 407

20

35

22

360.7

283

11900

39400 18.2 10.4

5570

1930

*458 417

30

50

22

528.6

415

187000 60500 18.8 10.7

8170

2900

*498 432

45

70

22

770.1

604

298000 94400 19.7 11.1

12000 4370

*492 465

45

20

22

258.0

202

117000 33500 21.3 11.4

4770

1440

*502 465

15

25

22

304.5

239

146000 41900 21.9 11.7

5810

1800

*502 470

20

25

22

329.6

239

151000 43300 21.4 11.5

6020

1840

150×150

148

100

6

9

8

26.34

20.7

1000

150

6.16 2.38

135

30.1

200×150

194

150

6

9

8

38.10

29.9

2630

507

8.30 3.64

271

67.6

250×175

244

175

7

11

13

55.49

43.6

6040

984

10.4 4.21

495

112

350×350

400×400

500×500

3

Iy

iz

iy

Modulus of cross section/cm3 Wx Wy

t1

300×300

Ix

Diameter of inertia/cm

B

250×250

HM

Theoretica Crossl sectional 2 weight/(kg/ area/cm m)

H

200×200

HW

Cross-sectional dimension/mm

GB/T 11263-2010 Table 1 (Continued)

4

GB/T 11263-2010 Table 1 (Continued)

5

GB/T 11263-2010 Table 1 (continued)

6

GB/T 11263-2010 Table 2 Size, cross-sectional area, theoretical weight and cross-sectional features of cut T-section steel

7

GB/T 11263-2010 Table 2 (Continued)

8

GB/T 11263-2010 Table 2 (Continued)

5.2 Dimension, appearance and allowable deviation 5.2.1 The dimension, appearance and allowable deviation of H-section steel shall respectively comply with the specifications of Table 3 and Table 4. According to the requirements of purchaser, the dimension, appearance and allowable deviation of H-section steel and cut T-section steel can also be specified by agreement reached by the purchaser and supplier. 5.2.2 The cut surface of H-section steel and cut T-section steel shall not have burr that exceeds 8mm. 5.3 H-section steel and cut T-section steel shall not have obvious torsion evidence. 5.3.1 H-section steel and cut T-section steel shall be delivered according to theoretical weight (theoretical weight is calculated based on density of 7.85g/cm3). The supplier and purchaser shall negotiate and indicate the weight in the contract and the delivery can also be made according to actual weight. 5.3.2 Allowable deviation of delivery weighty of H-section steel and cut T-section steel shall comply with the specification of Table 5. The calculation method of allowable deviation is the difference between actual weight and theoretical weight divided by theoretical weight, represented by percent rate. 5.4 Specification representation H-section steel: H and height H value × width B value × web thickness t1 value × flange thickness t2 value. Such as: H596×199×10×15 Cut T-section steel: T and height h value ×width B value × web thickness t1 value × flange thickness t2 value. Such as: T207 ×405 × 18 × 28 9

GB/T 11263-2010 Table 3 Size, appearance allowable deviation of H-section steel Item Height H (According to model) Width B (According to model)

t1 Thicknes s t2

Allowable deviation