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GB/T 20564.5-2022   Continuously cold rolled high strength steel sheet and strip for automobile—Part 5: Isotropic steel (English Version)
Standard No.: GB/T 20564.5-2022 Status:valid remind me the status change

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Language:English File Format:PDF
Word Count: 7500 words Price(USD):160.0 remind me the price change

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Implemented on:2023-2-1 Delivery: via email in 1~3 business day
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Standard No.: GB/T 20564.5-2022
English Name: Continuously cold rolled high strength steel sheet and strip for automobile—Part 5: Isotropic steel
Chinese Name: 汽车用高强度冷连轧钢板及钢带 第5部分:各向同性钢
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: 2022-07-11
Implemented on: 2023-2-1
Status: valid
Superseding:GB/T 20564.5-2010 Continuously cold rolled high strength steel sheet and strip for automobile—Part 5:Isotropic steel
Language: English
File Format: PDF
Word Count: 7500 words
Price(USD): 160.0
Delivery: via email in 1~3 business day
1 Scope This document specifies the classification and grade of cold-rolled isotropic high-strength steel plates and strips, the content of orders, dimensions. Shape, weight. Technical requirements, test methods, inspection rules. Packaging, marking and quality certification, etc. This document applies to the thickness of not more than 2.5 mm, mainly used for the production of automotive outer cover of cold-rolled isotropic high-strength steel plates and strips (hereinafter referred to as "steel plates and strips"). 2 normative reference documents The contents of the following documents constitute the essential provisions of this document through the normative references in the text. Among them, note the date of the reference document, only the date of the corresponding version applies to this document; do not note the date of the reference document, its latest version (including all the revision of the list) applies to this document. GB/T 223,5 Determination of acid-soluble silicon and total silicon content of iron and steel reduced silicon molybdate spectrophotometric method GB/T 223.9 steel and alloy aluminum content of the determination of chromium azure S spectrophotometric method GB/T 223.40 steel and alloy saw content of the determination of chlorosulfuric acid S spectrophotometric method GB/T 223,59 steel and alloy phosphorus content determination - bismuth phosphorus molybdenum blue spectrophotometric method and antimony phosphorus molybdenum blue spectrophotometric method GB/T 223.63 steel and alloy chemical analysis method sodium periodate (potassium) photometric method for the determination of manganese GB/T223.64 iron and steel and alloy manganese content determination flame atomic absorption spectrometry GB/T 223.76 iron and steel and alloy chemical analysis method flame atomic absorption spectrometry determination of vanadium GB/T 223.78 steel and alloy chemical analysis method curcumin direct photometric determination of boron content GB/T 223.84 steel and alloys, the determination of titanium content of the two-antipyrine methane spectrophotometric method GB/T 223.85 steel and alloy sulfur content of the determination of induction furnace combustion after infrared absorption method 3 terms and definitions GB/T 5027 defined as well as the following terms and definitions apply to this document. 3.1 Isotropic steel isotropic steel The plastic strain ratio (r value) is limited, with isotropic properties and good tensile forming properties of steel. Usually plate in-plane plasticity strain ratio anisotropic degree is small. 4 Classification and grading methods 4.1 Grading method The grade of steel plate and strip consists of the initials "CR" of "ColdRolled", the specified minimum yield strength value, the isotropic value, and the isotropic value. The grade is composed of the first two letters of the English word "Isotropic", "IS". Example: CR2201S, where: CR a cold-rolled English "ColdRolled" initials;. 220 - specified minimum yield strength value in MPa (MPa); IS-isotropic English "tropic" of the first two letters. 4.2 Classification 4.2.1 Steel plates and strips by grade and recommended uses are shown in Table 1. 5 Order content 5.1 The contract or order according to this document shall include the following contents: a) Product name (steel plate or strip); b) The document number; c) Grade; d) specifications and dimensions, unevenness accuracy: e) Surface quality level; f) Surface structure; g) Edge condition; h) Packing method; i) Weight; j) Application; k) Other special requirements. 5.2 If size and unevenness accuracy, surface quality level, surface structure type, edge condition and packaging are not specified in the order contract, the products will be treated as normal size and unevenness accuracy and more accurate. If the information of size and unevenness accuracy, surface quality level, surface structure type, edge state and packaging are not specified in the order contract, the products in this document shall be supplied as ordinary size and unevenness accuracy, higher level surface, cut edge steel plate or steel strip with pockmarked surface structure, and packaged according to the packaging method provided by the supplier. 6 Size, shape, weight The size, shape, weight and allowable deviation of steel plate and strip shall conform to the provisions of GB/T 708. 7 Technical requirements 7.1 Chemical composition The chemical composition of the steel (melting analysis) reference value is shown in Appendix A. If the demander has requirements on chemical composition. Should be negotiated at the time of order. 7.2 Smelting method The steel used for steel plates and strips is smelted in oxygen converter or electric furnace, unless otherwise specified, the smelting method is chosen by the supplier. 7.3 Delivery status 7.3.1 Steel plates and strips shall be delivered in annealed and flattened condition. 7.3.2Steel plates and strips are normally supplied oiled and the oiled film shall be removable with alkaline aqueous solution or usual solvents. In the usual packaging, transportation, loading and storage conditions. Under the usual conditions of packaging, transportation, loading and storage, the supplier guarantees that the surface of steel plates and strips will not rust within 6 months from the date of completion of manufacture. If the demander requires the supply without oiling, it should be negotiated at the time of order. 7.4 Mechanical properties The supplier guarantees that the mechanical properties of the steel plates and strips shall conform to the provisions of Table 4 within 6 months from the date of manufacture. Note: Due to the effect of aging, the mechanical properties of steel plates and strips will deteriorate with the extension of storage time, such as the rise of yield strength and tensile strength, the decrease of elongation after break, and the deterioration of forming properties. Tensile strain marks appear, so we suggest you to use them as soon as possible. 7.5 Tensile strain marks Under the condition of room temperature storage, for the steel plates and strips with surface quality FC and FD, the tensile strain marks shall not appear when they are used within 6 months after the date of manufacture. 7.6 Surface quality 7.6.1 The surface of steel plates and strips should not have scars, cracks, inclusions and other defects harmful to the use of steel plates and strips should not be visually visible delamination. 7.6.2 The characteristics of the surface quality level of steel plates and strips are shown in Table 5. 7.6.3 For steel strips, as there is no opportunity to remove the defective part. Therefore, delivery with defects is allowed, but the defective part should not exceed 6% of the total length of each roll. 8 Test methods 8.1 The chemical composition of steel test a.. GB/T 4336, GB/T 20123, GB/T 20125. GB/T 20126 or general chemical analysis methods, arbitration by GB/T 223.5, GB/T 223.9, GB/T 223. 40. GB/T 223. 59, GB/T 223. 63, GB/T 223.64 . 223.76, GB/T 223.78 . GB/T 223.84, GB/T 223.85 and GB/T 223.86 of the provisions. 8.2 steel plates and strips The inspection items and test methods should be in accordance with the provisions of Table 7. 8.3 r value is calculated at 15% plastic strain, when the maximum force plastic elongation is less than 15%, the plastic strain value at the end of the maximum force plastic elongation. n value is calculated in the range of 10% ~ 20% plastic strain, when the maximum force plastic elongation is less than 20%, the calculated plastic strain range of 10% to the end of the maximum force plastic elongation. 9 Inspection rules 9.1 The inspection and acceptance of steel plates and strips shall be carried out by the inspection department of the supplier. 9.2 Steel plates and strips should be accepted by lot. Each inspection batch should be composed of the same grade, the same specification, the same processing state of the steel plate or strip. Each batch of Weight should not be greater than 30t, for the volume of more than 30t of steel strip, each volume as an inspection batch. 9.3 steel plate and strip sampling number and sampling method should be consistent with the provisions of Table 7. 9.4 steel plate and steel strip re-testing and determination rules should be consistent with the provisions of GB/T17505. 9.5 chemical composition and mechanical properties of the test results according to the revised value of the comparison method for revision, revision rules according to the provisions of GB/T8170. 10 packaging, marking and quality certification Steel plate and strip packaging, marking and quality certification should comply with the provisions of GB/T 247. The type of quality certificate (inspection documents) should be in accordance with the provisions of GB/T 18253-2018. If the demander has special requirements for packaging, it can be negotiated when ordering. 11 Domestic and foreign grade approximation comparison The approximate comparison between the grades in this document and the foreign standard grades is shown in Appendix B.
Foreword Introduction 1 Scope 2 normative reference documents 3 terms and definitions 4 Classification and grading methods 5 Order content 6 Size, shape, weight 7 Technical requirements 8 Test methods 9 Inspection rules 10 packaging, marking and quality certification 11 Domestic and foreign grade approximation comparison Appendix A Appendix B Appendix C Bibliography
Referred in GB/T 20564.5-2022:
*GB/T 223.5-2008 Steel and iron - Determination of acid-soluble silicon and total silicon content - Reduced molybdosilicate spectrophotometric method
*GB/T 223.9-2008 Iron steel and alloy - Determination of aluminium content - Chrom azurol S photometric method
*GB/T 223.40-2007 Iron, Steel and Alloy - Determination of Niobium Content by the Sulphochlorophenol S Spectrophotometric Method
*GB/T 223.59-2008 Iron, Steel and Alloy - Determination of Phosphorus Content - Bismuth Phosphomolybdate Blue Spectrophotometric Method and Antimony Phosphomolybdate Blue Spectrophotometric Method
*GB/T 223.63-2022 Iron, steel and alloy—Determination of manganese content—Sodium (potassium) periodate spectrophotometric method
*GB/T 223.64-2008 Iron, Steel and Alloy - Determination of Manganese Content - Flame Atomic Absorption Spectrometric Method
*GB/T 223.76-1994 Methods for chemical analysis of iron, steel and alloy The flame atomic absorption spectrometric method for the determination of vanadium content
*GB/T 223.78-2000 Methods for Chemical Analysis of Iron, Steel and Alloy - Curcumin Spectrophotometric Method for the Determination of Boron Content
*GB/T 223.84-2009 Steel and iron—Determination of titanium content—Diantipyrylmethane spectrophotometric method
*GB/T 223.85-2009 Steel and iron—Determination of sulfur content—Infrared absorption method after combustion in an induction furnace
Code of China
Standard
GB/T 20564.5-2022  Continuously cold rolled high strength steel sheet and strip for automobile—Part 5: Isotropic steel (English Version)
Standard No.GB/T 20564.5-2022
Statusvalid
LanguageEnglish
File FormatPDF
Word Count7500 words
Price(USD)160.0
Implemented on2023-2-1
Deliveryvia email in 1~3 business day
Detail of GB/T 20564.5-2022
Standard No.
GB/T 20564.5-2022
English Name
Continuously cold rolled high strength steel sheet and strip for automobile—Part 5: Isotropic steel
Chinese Name
汽车用高强度冷连轧钢板及钢带 第5部分:各向同性钢
Chinese Classification
H46
Professional Classification
GB
ICS Classification
Issued by
SAMR; SAC
Issued on
2022-07-11
Implemented on
2023-2-1
Status
valid
Superseded by
Superseded on
Abolished on
Superseding
GB/T 20564.5-2010 Continuously cold rolled high strength steel sheet and strip for automobile—Part 5:Isotropic steel
Language
English
File Format
PDF
Word Count
7500 words
Price(USD)
160.0
Keywords
GB/T 20564.5-2022, GB 20564.5-2022, GBT 20564.5-2022, GB/T20564.5-2022, GB/T 20564.5, GB/T20564.5, GB20564.5-2022, GB 20564.5, GB20564.5, GBT20564.5-2022, GBT 20564.5, GBT20564.5
Introduction of GB/T 20564.5-2022
1 Scope This document specifies the classification and grade of cold-rolled isotropic high-strength steel plates and strips, the content of orders, dimensions. Shape, weight. Technical requirements, test methods, inspection rules. Packaging, marking and quality certification, etc. This document applies to the thickness of not more than 2.5 mm, mainly used for the production of automotive outer cover of cold-rolled isotropic high-strength steel plates and strips (hereinafter referred to as "steel plates and strips"). 2 normative reference documents The contents of the following documents constitute the essential provisions of this document through the normative references in the text. Among them, note the date of the reference document, only the date of the corresponding version applies to this document; do not note the date of the reference document, its latest version (including all the revision of the list) applies to this document. GB/T 223,5 Determination of acid-soluble silicon and total silicon content of iron and steel reduced silicon molybdate spectrophotometric method GB/T 223.9 steel and alloy aluminum content of the determination of chromium azure S spectrophotometric method GB/T 223.40 steel and alloy saw content of the determination of chlorosulfuric acid S spectrophotometric method GB/T 223,59 steel and alloy phosphorus content determination - bismuth phosphorus molybdenum blue spectrophotometric method and antimony phosphorus molybdenum blue spectrophotometric method GB/T 223.63 steel and alloy chemical analysis method sodium periodate (potassium) photometric method for the determination of manganese GB/T223.64 iron and steel and alloy manganese content determination flame atomic absorption spectrometry GB/T 223.76 iron and steel and alloy chemical analysis method flame atomic absorption spectrometry determination of vanadium GB/T 223.78 steel and alloy chemical analysis method curcumin direct photometric determination of boron content GB/T 223.84 steel and alloys, the determination of titanium content of the two-antipyrine methane spectrophotometric method GB/T 223.85 steel and alloy sulfur content of the determination of induction furnace combustion after infrared absorption method 3 terms and definitions GB/T 5027 defined as well as the following terms and definitions apply to this document. 3.1 Isotropic steel isotropic steel The plastic strain ratio (r value) is limited, with isotropic properties and good tensile forming properties of steel. Usually plate in-plane plasticity strain ratio anisotropic degree is small. 4 Classification and grading methods 4.1 Grading method The grade of steel plate and strip consists of the initials "CR" of "ColdRolled", the specified minimum yield strength value, the isotropic value, and the isotropic value. The grade is composed of the first two letters of the English word "Isotropic", "IS". Example: CR2201S, where: CR a cold-rolled English "ColdRolled" initials;. 220 - specified minimum yield strength value in MPa (MPa); IS-isotropic English "tropic" of the first two letters. 4.2 Classification 4.2.1 Steel plates and strips by grade and recommended uses are shown in Table 1. 5 Order content 5.1 The contract or order according to this document shall include the following contents: a) Product name (steel plate or strip); b) The document number; c) Grade; d) specifications and dimensions, unevenness accuracy: e) Surface quality level; f) Surface structure; g) Edge condition; h) Packing method; i) Weight; j) Application; k) Other special requirements. 5.2 If size and unevenness accuracy, surface quality level, surface structure type, edge condition and packaging are not specified in the order contract, the products will be treated as normal size and unevenness accuracy and more accurate. If the information of size and unevenness accuracy, surface quality level, surface structure type, edge state and packaging are not specified in the order contract, the products in this document shall be supplied as ordinary size and unevenness accuracy, higher level surface, cut edge steel plate or steel strip with pockmarked surface structure, and packaged according to the packaging method provided by the supplier. 6 Size, shape, weight The size, shape, weight and allowable deviation of steel plate and strip shall conform to the provisions of GB/T 708. 7 Technical requirements 7.1 Chemical composition The chemical composition of the steel (melting analysis) reference value is shown in Appendix A. If the demander has requirements on chemical composition. Should be negotiated at the time of order. 7.2 Smelting method The steel used for steel plates and strips is smelted in oxygen converter or electric furnace, unless otherwise specified, the smelting method is chosen by the supplier. 7.3 Delivery status 7.3.1 Steel plates and strips shall be delivered in annealed and flattened condition. 7.3.2Steel plates and strips are normally supplied oiled and the oiled film shall be removable with alkaline aqueous solution or usual solvents. In the usual packaging, transportation, loading and storage conditions. Under the usual conditions of packaging, transportation, loading and storage, the supplier guarantees that the surface of steel plates and strips will not rust within 6 months from the date of completion of manufacture. If the demander requires the supply without oiling, it should be negotiated at the time of order. 7.4 Mechanical properties The supplier guarantees that the mechanical properties of the steel plates and strips shall conform to the provisions of Table 4 within 6 months from the date of manufacture. Note: Due to the effect of aging, the mechanical properties of steel plates and strips will deteriorate with the extension of storage time, such as the rise of yield strength and tensile strength, the decrease of elongation after break, and the deterioration of forming properties. Tensile strain marks appear, so we suggest you to use them as soon as possible. 7.5 Tensile strain marks Under the condition of room temperature storage, for the steel plates and strips with surface quality FC and FD, the tensile strain marks shall not appear when they are used within 6 months after the date of manufacture. 7.6 Surface quality 7.6.1 The surface of steel plates and strips should not have scars, cracks, inclusions and other defects harmful to the use of steel plates and strips should not be visually visible delamination. 7.6.2 The characteristics of the surface quality level of steel plates and strips are shown in Table 5. 7.6.3 For steel strips, as there is no opportunity to remove the defective part. Therefore, delivery with defects is allowed, but the defective part should not exceed 6% of the total length of each roll. 8 Test methods 8.1 The chemical composition of steel test a.. GB/T 4336, GB/T 20123, GB/T 20125. GB/T 20126 or general chemical analysis methods, arbitration by GB/T 223.5, GB/T 223.9, GB/T 223. 40. GB/T 223. 59, GB/T 223. 63, GB/T 223.64 . 223.76, GB/T 223.78 . GB/T 223.84, GB/T 223.85 and GB/T 223.86 of the provisions. 8.2 steel plates and strips The inspection items and test methods should be in accordance with the provisions of Table 7. 8.3 r value is calculated at 15% plastic strain, when the maximum force plastic elongation is less than 15%, the plastic strain value at the end of the maximum force plastic elongation. n value is calculated in the range of 10% ~ 20% plastic strain, when the maximum force plastic elongation is less than 20%, the calculated plastic strain range of 10% to the end of the maximum force plastic elongation. 9 Inspection rules 9.1 The inspection and acceptance of steel plates and strips shall be carried out by the inspection department of the supplier. 9.2 Steel plates and strips should be accepted by lot. Each inspection batch should be composed of the same grade, the same specification, the same processing state of the steel plate or strip. Each batch of Weight should not be greater than 30t, for the volume of more than 30t of steel strip, each volume as an inspection batch. 9.3 steel plate and strip sampling number and sampling method should be consistent with the provisions of Table 7. 9.4 steel plate and steel strip re-testing and determination rules should be consistent with the provisions of GB/T17505. 9.5 chemical composition and mechanical properties of the test results according to the revised value of the comparison method for revision, revision rules according to the provisions of GB/T8170. 10 packaging, marking and quality certification Steel plate and strip packaging, marking and quality certification should comply with the provisions of GB/T 247. The type of quality certificate (inspection documents) should be in accordance with the provisions of GB/T 18253-2018. If the demander has special requirements for packaging, it can be negotiated when ordering. 11 Domestic and foreign grade approximation comparison The approximate comparison between the grades in this document and the foreign standard grades is shown in Appendix B.
Contents of GB/T 20564.5-2022
Foreword Introduction 1 Scope 2 normative reference documents 3 terms and definitions 4 Classification and grading methods 5 Order content 6 Size, shape, weight 7 Technical requirements 8 Test methods 9 Inspection rules 10 packaging, marking and quality certification 11 Domestic and foreign grade approximation comparison Appendix A Appendix B Appendix C Bibliography
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Keywords:
GB/T 20564.5-2022, GB 20564.5-2022, GBT 20564.5-2022, GB/T20564.5-2022, GB/T 20564.5, GB/T20564.5, GB20564.5-2022, GB 20564.5, GB20564.5, GBT20564.5-2022, GBT 20564.5, GBT20564.5