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GB/T 708-2019   Dimension,shape,weight and tolerance for cold-rolled steel strip and sheet (English Version)
Standard No.: GB/T 708-2019 Status:valid remind me the status change

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Language:English File Format:PDF
Word Count: 7500 words Price(USD):100.0 remind me the price change

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Implemented on:2020-2-1 Delivery: via email in 1 business day
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Standard No.: GB/T 708-2019
English Name: Dimension,shape,weight and tolerance for cold-rolled steel strip and sheet
Chinese Name: 冷轧钢板和钢带的尺寸、外形、重量及允许偏差
Chinese Classification: H46    Steel sheet and strip
Professional Classification: GB    National Standard
ICS Classification: 77.140.50 77.140.50    Flat steel products and semi-products 77.140.50
Issued by: SAMR; SAC
Issued on: 2019-03-25
Implemented on: 2020-2-1
Status: valid
Superseding:GB/T 708-2006 Dimension, Shape, Weight, and Tolerance for Cold-Rolled Steel Plat
Language: English
File Format: PDF
Word Count: 7500 words
Price(USD): 100.0
Delivery: via email in 1 business day
Codeofchina.com is in charge of this English translation. In case of any doubt about the English translation, the Chinese original shall be considered authoritative. This standard is developed in accordance with the rules given in GB/T 1.1-2009. This standard replaces GB/T 708-2006 Dimension, shape, weight and tolerance for cold-rolled steel strip and sheet. In addition to editorial changes, the following technical changes have been made with respect to GB/T 708-2006: ——the thickness and width dimension range of steel sheet and steel strip are modified (see Sub-clause 5.1, Sub-clause 5.1 in Edition 2006); ——the thickness tolerances of steel sheet and steel strip are modified, they are respectively determined according to specified minimum yield strength Re < 260 MPa, 260 MPa ≤ Re <340 MPa, ≤, 340 MPa ≤ Re ≤420 MPa, Re > 420 Mpa (See Table 2, Table 3, Table 4, Table 5, Table 2 in Edition 2006); ——the higher precision (PW.B) and requirements of width tolerances of slit wide strip are added, and the width tolerances of slit wide strip is modified (see Sub-clause 6.2.3, Sub-clause 6.2.2 in Edition 2006) ; ——the flatness of steel sheet and steel strip is modified, the Re < 260 MPa and 260 MPa ≤ Re < 340 MPa are divided according to the specified minimum yield strength Re < 280 MPa and 280 MPa ≤ Re <360 MPa, and the flatness requirements are modified (see Sub-clause 7.1, Sub-clause 7.1 in Edition 2006); ——the requirements for supply of thickness tolerance, width tolerance, length tolerance of steel sheet and steel strip and flatness supply based on the ordinary precision under default state are added (see Sub-clauses 6.1.6, 6.2.2, 6.3 and 7.1.1); ——the negotiation terms of the thickness tolerance and flatness requirements are added when the yield strength and requirements are not specified in the product specification (see Sub-clauses 6.1.5 and 7.1.5); ——the requirement on camber is modified (see Sub-clause 7.2; Sub-clause 7.2 in Edition 2006); ——the "beveling" is modified to "out-of-square", and methods and requirements for measuring out-of-square with diagonal method are added (see Sub-clause 7.3; Sub-clause 7.3 in Edition 2006); ——the requirements on measurement position of steel strip flatness are added (see Sub-clause 8.3.3); ——the schematic diagram for measuring the out-of-square with diagonal method is added [(see Sub-clause 8.5b)]. This standard was proposed by the China Iron and Steel Association. This standard is under the jurisdiction of SAC/TC 183 National Technical Committee on Iron and Steel of Standardization Administration of China. The previous editions of the standard replaced by this standard are as follows: ——GB/T 708-1965, GB/T 708-1988 and GB/T 708-2006. Dimension, shape, weight and tolerance for cold-rolled steel strip and sheet 1 Scope This standard specifies the terms and definitions, classification and code, dimension, dimensional tolerance, shape requirements, dimension and shape measurement, weight and numerical rounding of cold-rolled steel sheets and strips. This standard is applicable to cold-rolled wide strip with a rolled width of not less than 600 mm, slit wide strip and sheet cut from strip (hereinafter referred to as steel sheets and steel strips). A single cold-rolled steel sheet can also be carried out as above. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the normative document (including any amendments) applies. GB/T 8170 Rules of rounding off for numerical values & expression and judgment of limiting values 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 wide strip steel strip with a rolled width of not less than 600 mm and delivered in rolls 3.2 slit wide strip formed by slit wide of wide strip and delivered in rolls 3.3 sheet cut from strip formed by cutting from strip and delivered in shapes 3.4 plate cold-rolled flat steel with directly rolled and not fixed edge deformation 4 Classification and code 4.1 The classification and code are as follows based on the edge state: a) edge-cut, EC; b) edge-mill, EM; 4.2 The classification and code are as follows based on the dimension precision: a) ordinary thickness precision, PT.A; b) higher thickness precision, PT.B; c) ordinary width precision, PW.A; d) higher width precision, PW.B; e) ordinary length precision, PL.A; f) higher length precision, PL.B. 4.3 The classification and code are as follows based on the flatness precision: a) ordinary flatness precision, PF.A; d) higher flatness precision, PF.B. 4.4 The classification of dimension and flatness corresponding to product modality and edge state is shown in Table 1. Table 1 Classification of dimension and flatness corresponding to product modality and edge state Product modality Classification and code Edge state Thickness precision Width precision Length precision Flatness precision Ordinary Higher Ordinary Higher Ordinary Higher Ordinary Higher Wide strip Edge-mill EM PT.A PT.B — — — — — — Edge-cut EC PT.A PT.B PW.A PW.B — — — — Steel sheet Edge-mill EM PT.A PT.B — — PL.A PL.B PF.A PF.B Edge-cut EC PT.A PT.B PW.A PW.B PL.A PL.B PF.A PF.B Slit wide strip Edge-cut EC PT.A PT.B PW.A PW.B — — — — 5 Dimension 5.1 Dimension range 5.1.1 The nominal thickness of steel sheets and strips is not greater than 4.00 mm. 5.1.2 The nominal width of steel sheets and strips is not greater than 2150 mm. 5.1.3 The nominal width of steel sheets is 1000 mm~6000 mm. 5.2 Recommended nominal dimension 5.2.1 The nominal thickness of steel sheets and strips is within the range specified in Sub-clause 5.1, the recommended nominal thickness of the steel sheets and strips with nominal thickness of 1.00 mm is any dimensions with a multiple of 0.05 mm; the recommended nominal thickness of the steel sheets and strips with nominal thickness of 1.00 mm is any dimensions with a multiple of 0.01 mm. 5.2.2 The recommended nominal width of steel sheets and strips is any dimensions with a multiple of 10 mm. 5.2.3 The nominal length of steel sheets is within the range specified in Sub-clause 5.1. The recommended nominal length is any dimensions with a multiple of 50 mm. 5.2.4 As required by the demander, the steel sheets and strips with other dimensions can be supplied upon negotiation between the supplier and demander. 6 Dimension tolerance 6.1 Thickness tolerance 6.1.1 The thickness tolerance of steel sheets and strips with minimum yield strength Re of less than 260 MPa shall meet those specified in Table 2. 6.1.2 The thickness tolerance of steel sheets and strips with minimum yield strength Re of 260 MPa~<340 MPa shall meet those specified in Table 3. 6.1.3 The thickness tolerance of steel sheets and strips with minimum yield strength Re of 340 MPa~420 MPa shall meet those specified in Table 4. 6.1.4 The thickness tolerance of steel sheets and strips with minimum yield strength Re of greater than 420 MPa shall meet those specified in Table 5.
Foreword i 1 Scope 2 Normative references 3 Terms and definitions 4 Classification and code 5 Dimension 6 Dimension tolerance 7 Shape 8 Measurement of dimension and shape 9 Weight 10 Rounding of numerical values
Referred in GB/T 708-2019:
*GBT8170-
*GB4943.1-2011
*FZT73020-2012
*GBT14048.5-
*GB4706.1-2005
*QBT1333-2018
*GB5749-2022
*GB150-2011
*QBT1333-2018
*GB17625.1-2022
*TSG21-2016
*GB14748-2006
*GBT35590-2017
*GB3565-2005
*GBT3077-2015
*GBT19001-2016
*GBT699-
GB/T 708-2019 is referred in:
*GB 50128-2014 Code for construction of vertical cylindrical steel welded storage tanks
*GB/T 5213-2019 Cold rolled low carbon steel sheet and strip
*GB/T 20564.11-2017 Continuously cold rolled high strength steel sheet and strip for automobile--Part 11: Carbon manganese steel
*GB/T 20564.12-2019 Continuously cold rolled high strength steel sheet and strip for automobile-Part 12:Dual phase steel with high formability
*GB/T 20564.10-2017 Continuously cold rolled high strength steel sheet and strip for automobile--Part 10: Twinning induced plasticity steel
*GB/T 2520-2017 Cold-reduced electrolytic tinplate [Steel-plate & steel-strip]
*GB/T 13790-2008 Cold rolled low carbon steel sheets and strips for vitreous enamelling
*GB/T 15675-2020 Continuously electrolytically zinc/zinc-nickel alloy coated steel sheet and strip
*GB/T 20564.6-2022 Continuously cold rolled high strength steel sheet and strip for automobile—Part 6: Transformation induced plasticity steel
*GB/T 20564.7-2022 Continuously cold rolled high strength steel sheet and strip for automobile—Part 7: Martensitic steel
*GB/T 41659-2022 General technical requirements for medical doors of building
*GB/T 13668-2015 General technical requirements for steel book cabinets and information cabinets
*GB/T 20564.13-2023 Continuously cold rolled high strength steel sheet and strip for automobile―Part 13:Medium manganese steel
*GB/T 20564.1-2017 Continuously cold rolled high strength steel sheet and strip for automobile--Part 1: Bake hardening steel
*GB/T 9160.2-2017 Rolling bearings―Accessories―Part 2:Locknuts and locking devices
*GB/T 2520-2008 Cold-reduced electrolytic tinplate
*GB 16809-2024 Fire resistant windows
*GB 12955-2024 Fire-resistant doorsets
Code of China
Standard
GB/T 708-2019  Dimension,shape,weight and tolerance for cold-rolled steel strip and sheet (English Version)
Standard No.GB/T 708-2019
Statusvalid
LanguageEnglish
File FormatPDF
Word Count7500 words
Price(USD)100.0
Implemented on2020-2-1
Deliveryvia email in 1 business day
Detail of GB/T 708-2019
Standard No.
GB/T 708-2019
English Name
Dimension,shape,weight and tolerance for cold-rolled steel strip and sheet
Chinese Name
冷轧钢板和钢带的尺寸、外形、重量及允许偏差
Chinese Classification
H46
Professional Classification
GB
ICS Classification
Issued by
SAMR; SAC
Issued on
2019-03-25
Implemented on
2020-2-1
Status
valid
Superseded by
Superseded on
Abolished on
Superseding
GB/T 708-2006 Dimension, Shape, Weight, and Tolerance for Cold-Rolled Steel Plat
Language
English
File Format
PDF
Word Count
7500 words
Price(USD)
100.0
Keywords
GB/T 708-2019, GB 708-2019, GBT 708-2019, GB/T708-2019, GB/T 708, GB/T708, GB708-2019, GB 708, GB708, GBT708-2019, GBT 708, GBT708
Introduction of GB/T 708-2019
Codeofchina.com is in charge of this English translation. In case of any doubt about the English translation, the Chinese original shall be considered authoritative. This standard is developed in accordance with the rules given in GB/T 1.1-2009. This standard replaces GB/T 708-2006 Dimension, shape, weight and tolerance for cold-rolled steel strip and sheet. In addition to editorial changes, the following technical changes have been made with respect to GB/T 708-2006: ——the thickness and width dimension range of steel sheet and steel strip are modified (see Sub-clause 5.1, Sub-clause 5.1 in Edition 2006); ——the thickness tolerances of steel sheet and steel strip are modified, they are respectively determined according to specified minimum yield strength Re < 260 MPa, 260 MPa ≤ Re <340 MPa, ≤, 340 MPa ≤ Re ≤420 MPa, Re > 420 Mpa (See Table 2, Table 3, Table 4, Table 5, Table 2 in Edition 2006); ——the higher precision (PW.B) and requirements of width tolerances of slit wide strip are added, and the width tolerances of slit wide strip is modified (see Sub-clause 6.2.3, Sub-clause 6.2.2 in Edition 2006) ; ——the flatness of steel sheet and steel strip is modified, the Re < 260 MPa and 260 MPa ≤ Re < 340 MPa are divided according to the specified minimum yield strength Re < 280 MPa and 280 MPa ≤ Re <360 MPa, and the flatness requirements are modified (see Sub-clause 7.1, Sub-clause 7.1 in Edition 2006); ——the requirements for supply of thickness tolerance, width tolerance, length tolerance of steel sheet and steel strip and flatness supply based on the ordinary precision under default state are added (see Sub-clauses 6.1.6, 6.2.2, 6.3 and 7.1.1); ——the negotiation terms of the thickness tolerance and flatness requirements are added when the yield strength and requirements are not specified in the product specification (see Sub-clauses 6.1.5 and 7.1.5); ——the requirement on camber is modified (see Sub-clause 7.2; Sub-clause 7.2 in Edition 2006); ——the "beveling" is modified to "out-of-square", and methods and requirements for measuring out-of-square with diagonal method are added (see Sub-clause 7.3; Sub-clause 7.3 in Edition 2006); ——the requirements on measurement position of steel strip flatness are added (see Sub-clause 8.3.3); ——the schematic diagram for measuring the out-of-square with diagonal method is added [(see Sub-clause 8.5b)]. This standard was proposed by the China Iron and Steel Association. This standard is under the jurisdiction of SAC/TC 183 National Technical Committee on Iron and Steel of Standardization Administration of China. The previous editions of the standard replaced by this standard are as follows: ——GB/T 708-1965, GB/T 708-1988 and GB/T 708-2006. Dimension, shape, weight and tolerance for cold-rolled steel strip and sheet 1 Scope This standard specifies the terms and definitions, classification and code, dimension, dimensional tolerance, shape requirements, dimension and shape measurement, weight and numerical rounding of cold-rolled steel sheets and strips. This standard is applicable to cold-rolled wide strip with a rolled width of not less than 600 mm, slit wide strip and sheet cut from strip (hereinafter referred to as steel sheets and steel strips). A single cold-rolled steel sheet can also be carried out as above. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the normative document (including any amendments) applies. GB/T 8170 Rules of rounding off for numerical values & expression and judgment of limiting values 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 wide strip steel strip with a rolled width of not less than 600 mm and delivered in rolls 3.2 slit wide strip formed by slit wide of wide strip and delivered in rolls 3.3 sheet cut from strip formed by cutting from strip and delivered in shapes 3.4 plate cold-rolled flat steel with directly rolled and not fixed edge deformation 4 Classification and code 4.1 The classification and code are as follows based on the edge state: a) edge-cut, EC; b) edge-mill, EM; 4.2 The classification and code are as follows based on the dimension precision: a) ordinary thickness precision, PT.A; b) higher thickness precision, PT.B; c) ordinary width precision, PW.A; d) higher width precision, PW.B; e) ordinary length precision, PL.A; f) higher length precision, PL.B. 4.3 The classification and code are as follows based on the flatness precision: a) ordinary flatness precision, PF.A; d) higher flatness precision, PF.B. 4.4 The classification of dimension and flatness corresponding to product modality and edge state is shown in Table 1. Table 1 Classification of dimension and flatness corresponding to product modality and edge state Product modality Classification and code Edge state Thickness precision Width precision Length precision Flatness precision Ordinary Higher Ordinary Higher Ordinary Higher Ordinary Higher Wide strip Edge-mill EM PT.A PT.B — — — — — — Edge-cut EC PT.A PT.B PW.A PW.B — — — — Steel sheet Edge-mill EM PT.A PT.B — — PL.A PL.B PF.A PF.B Edge-cut EC PT.A PT.B PW.A PW.B PL.A PL.B PF.A PF.B Slit wide strip Edge-cut EC PT.A PT.B PW.A PW.B — — — — 5 Dimension 5.1 Dimension range 5.1.1 The nominal thickness of steel sheets and strips is not greater than 4.00 mm. 5.1.2 The nominal width of steel sheets and strips is not greater than 2150 mm. 5.1.3 The nominal width of steel sheets is 1000 mm~6000 mm. 5.2 Recommended nominal dimension 5.2.1 The nominal thickness of steel sheets and strips is within the range specified in Sub-clause 5.1, the recommended nominal thickness of the steel sheets and strips with nominal thickness of 1.00 mm is any dimensions with a multiple of 0.05 mm; the recommended nominal thickness of the steel sheets and strips with nominal thickness of 1.00 mm is any dimensions with a multiple of 0.01 mm. 5.2.2 The recommended nominal width of steel sheets and strips is any dimensions with a multiple of 10 mm. 5.2.3 The nominal length of steel sheets is within the range specified in Sub-clause 5.1. The recommended nominal length is any dimensions with a multiple of 50 mm. 5.2.4 As required by the demander, the steel sheets and strips with other dimensions can be supplied upon negotiation between the supplier and demander. 6 Dimension tolerance 6.1 Thickness tolerance 6.1.1 The thickness tolerance of steel sheets and strips with minimum yield strength Re of less than 260 MPa shall meet those specified in Table 2. 6.1.2 The thickness tolerance of steel sheets and strips with minimum yield strength Re of 260 MPa~<340 MPa shall meet those specified in Table 3. 6.1.3 The thickness tolerance of steel sheets and strips with minimum yield strength Re of 340 MPa~420 MPa shall meet those specified in Table 4. 6.1.4 The thickness tolerance of steel sheets and strips with minimum yield strength Re of greater than 420 MPa shall meet those specified in Table 5.
Contents of GB/T 708-2019
Foreword i 1 Scope 2 Normative references 3 Terms and definitions 4 Classification and code 5 Dimension 6 Dimension tolerance 7 Shape 8 Measurement of dimension and shape 9 Weight 10 Rounding of numerical values
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Keywords:
GB/T 708-2019, GB 708-2019, GBT 708-2019, GB/T708-2019, GB/T 708, GB/T708, GB708-2019, GB 708, GB708, GBT708-2019, GBT 708, GBT708