GB/T 20564.12-2019 PDF EnglishUS$135.00 · In stock · Download in 9 seconds
GB/T 20564.12-2019: Continuously cold rolled high strength steel sheet and strip for automobile - Part 12: Dual phase steel with high formability Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Valid
Similar standardsGB/T 20564.12-2019: Continuously cold rolled high strength steel sheet and strip for automobile - Part 12: Dual phase steel with high formability---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT20564.12-2019 NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 77.140.50 H 46 Continuously cold rolled high strength steel sheet and strip for automobile - Part 12: Dual phase steel with high formability ISSUED ON: MARCH 25, 2019 IMPLEMENTED ON: FEBRUARY 01, 2020 Issued by: State Administration for Market Regulation; Standardization Administration of the People's Republic of China. Table of ContentsForeword ... 3 1 Scope ... 4 2 Normative references ... 4 3 Terms and definitions ... 6 4 Classification and designation representation method ... 7 5 Ordering contents ... 7 6 Dimensions, shape, weight ... 8 7 Technical requirements ... 8 8 Test methods ... 10 9 Inspection rules ... 11 10 Packaging, marking and quality certificate ... 12 Annex A (informative) Chemical composition of steel ... 13 Annex B (informative) Approximation comparison of domestic and foreign designations ... 14 Continuously cold rolled high strength steel sheet and strip for automobile - Part 12: Dual phase steel with high formability1 ScopeThis Part of GB/T 20564 specifies the terms and definitions, classification and designation representation method, ordering contents, dimensions, shape, weight, technical requirements, test methods, inspection rules, packaging, marking and quality certificate of continuously cold rolled high strength steel sheet and strip for automobile. This Part applies to steel sheets and strips with a thickness of 0.50 mm ~ 3.00 mm, used for the manufacture of complex-forming automotive structural parts and reinforcements (hereinafter referred to as “steel sheets and strips”).2 Normative referencesThe 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 referenced document (including any amendments) applies. GB/T 223.4 Alloyed steel - Determination of manganese content - Potentiometric or visual titration method GB/T 223.9 Iron, steel and alloy - Determination of aluminium content - Chrome azurol S photometric method GB/T 223.11 Iron, steel and alloy - Determination of chromium content - Visual titration or potentiometric titration method GB/T 223.12 Methods for chemical analysis of iron, steel and alloy - The sodium carbonate separation-diphenyl carbazide photometric method for the determination of chromium content GB/T 223.17 Methods for chemical analysis of iron, steel and alloy - The diantipyryl methane photometric method for the determination of titanium content GB/T 4336 Carbon and low-alloy steel - Determination of multi-element contents - Spark discharge atomic emission spectrometric method (routine method) GB/T 5028 Metallic materials - Sheet and strip - Determination of tensile strain hardening exponent GB/T 8170 Rules of rounding off for numerical values & expression and judgement of limiting values GB/T 17505 Steel and steel products - General technical delivery requirements GB/T 20066 Steel and iron - Sampling and preparation of samples for the determination of chemical composition GB/T 20123 Steel and iron - Determination of total carbon and sulfur content - Infrared absorption method after combustion in an induction furnace (routine method) GB/T 20125 Low-alloy steel - Determination of multi-element contents - Inductively coupled plasma atomic emission spectrometric method GB/T 20126 Unalloyed steel - Determination of low carbon content - Part 2: Infrared absorption method after combustion in an induction furnace (with preheating) GB/T 24174 Steel - Determination of Bake-Hardening-Index (BH2)3 Terms and definitionsFor the purpose of this document, the following terms and definitions apply. 3.1 dual phase steel with high formability; DH Steel of which the microstructure is mainly ferrite, martensite and a small amount of retained austenite or bainite. NOTE: Compared with dual phase steel of the same tensile strength, it has higher elongation after fracture and work hardening index. It is suitable for part forming with high drawing requirements. b) reference to this Standard; c) designation; d) specifications and dimensions, flatness precision; e) surface quality grade; f) surface structure; g) edge state; h) packaging method; i) weight; j) use; k) other special requirements. 5.2 If the dimensions and flatness precision, surface quality grade, surface structure type, edge state and packaging information are not indicated in the order contract, the supply party shall supply according to ordinary dimensions and flatness precision, higher grade surface, pitted surface structure, edge- trimmed state, and package according to the packaging method provided by the supply party.6 Dimensions, shape, weightThe dimensions, shape, weight and tolerance of steel sheets and strips shall comply with the provisions of GB/T 708.7 Technical requirements7.1 Chemical composition See Annex A for reference values for chemical composition (melting analysis) of steel. If the manufacturer has requirements for chemical composition, they shall be negotiated at the time of ordering. See Annex B for an approximation comparison of designations in domestic and foreign standards. 7.2 Smelting method The steel used for steel sheets and strips is smelted in an oxygen converter or an electric furnace. Unless otherwise specified, the smelting method is selected by the supply party. ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of English version of GB/T 20564.12-2019 be delivered?Answer: The full copy PDF of English version of GB/T 20564.12-2019 can be downloaded in 9 seconds, and it will also be emailed to you in 9 seconds (double mechanisms to ensure the delivery reliably), with PDF-invoice.Question 2: Can I share the purchased PDF of GB/T 20564.12-2019_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 20564.12-2019_English will be deemed to be sold to your employer/organization who actually paid for it, including your colleagues and your employer's intranet.Question 3: Does the price include tax/VAT?Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countriesQuestion 4: Do you accept my currency other than USD?Answer: Yes. www.ChineseStandard.us -- GB/T 20564.12-2019 -- Click this link and select your country/currency to pay, the exact amount in your currency will be printed on the invoice. Full PDF will also be downloaded/emailed in 9 seconds.How to buy and download a true PDF of English version of GB/T 20564.12-2019?A step-by-step guide to download PDF of GB/T 20564.12-2019_EnglishStep 1: Visit website https://www.ChineseStandard.net (Pay in USD), or https://www.ChineseStandard.us (Pay in any currencies such as Euro, KRW, JPY, AUD).Step 2: Search keyword "GB/T 20564.12-2019". Step 3: Click "Add to Cart". If multiple PDFs are required, repeat steps 2 and 3 to add up to 12 PDFs to cart. Step 4: Select payment option (Via payment agents Stripe or PayPal). Step 5: Customize Tax Invoice -- Fill up your email etc. Step 6: Click "Checkout". Step 7: Make payment by credit card, PayPal, Google Pay etc. After the payment is completed and in 9 seconds, you will receive 2 emails attached with the purchased PDFs and PDF-invoice, respectively. Step 8: Optional -- Go to download PDF. Step 9: Optional -- Click Open/Download PDF to download PDFs and invoice. See screenshots for above steps: Steps 1~3 Steps 4~6 Step 7 Step 8 Step 9 |
