GB/T 15675-2020 PDF EnglishUS$185.00 · In stock · Download in 9 seconds
GB/T 15675-2020: Continuously electrolytically zinc/zinc-nickel alloy coated steel sheet and strip Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Valid GB/T 15675: Historical versions
Similar standardsGB/T 15675-2020: Continuously electrolytically zinc/zinc-nickel alloy coated steel sheet and strip---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/GBT15675-2020 GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 77.140.50 H 46 Replacing GB/T 15675-2008 Continuously electrolytically zinc/zinc-nickel alloy coated steel sheet and strip Issued on. SEPTEMBER 29, 2020 Implemented on. APRIL 01, 2021 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... 5 4 Designation expression method, classification and code... 5 5 Order content... 7 6 Size, shape, weight... 7 7 Technical requirements... 8 8 Test methods... 13 9 Inspection rules... 14 10 Packaging, marks and quality certificate... 15 Annex A (normative) Weight calculation method when weighing in theory... 161 ScopeThis Standard specifies the terms and definitions, designation expression method, classification and code, size, shape, weight, technical requirements, test methods, inspection rules, packaging, marks and quality certificates for continuously electrolytically zinc/zinc-nickel alloy coated steel sheet and strip. This Standard is applicable to electrolytically zinc/zinc-nickel alloy coated steel sheet and strip used in automobiles, home appliances, electronics and other industries (hereinafter referred to as steel sheet and strip).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 247, General rule of package mark and certification for steel plates (sheets) and strips GB/T 708, Dimension, Shape, Weight, and Tolerance for Cold-Rolled Steel Plates GB/T 1839-2008, Test method for gravimetric determination of the mass per unit area of galvanized coatings on steel products GB/T 5213, Cold rolled low carbon steel sheet and strip GB/T 8170, Rules of rounding off for numerical values & expression and judgement of limiting values GB/T 10125, Corrosion tests in artificial atmospheres - Salt spray tests GB/T 17505, Steel and steel products - General technical delivery requirements3 Terms and definitionsFor the purposes of this document, the following terms and definitions apply. 3.1 electrolytic zinc coating; ZE a coating that is composed of pure zinc and produced by continuous electrolytically zinc production line through electroplating; the coating does not contain any trace elements that are harmful to the bonding force of the binder or the paint performance 3.3 anti-fingerprint treatment conduct electrolytic passivation treatment on the surface of steel sheet and strip and apply with anti-fingerprint film, so as to improve the stain resistance of electronic or electrical products4 Designation expression method, classification and code4.1 Designation expression method The designation of steel sheet and strip is composed of two parts. substrate designation and coating type. They are connected with "+" in the middle. 4.2 Classification and code 4.2.1 Steel sheet and strip are divided into three levels according to surface quality. The level code shall meet the requirements of Table 1. 4.2.2 Steel sheet and strip are divided into two types according to the type of coating. pure zinc coating (ZE) and zinc-nickel alloy coating (ZN). 4.2.3 Steel sheet and strip are divided into three forms according to coating form. equal-thickness coating, differential-thickness coating and single-sided coating. 4.2.5 The type and code of surface treatment shall meet the requirements of Table 2.5 Order content5.1 The contract or order for placing an order in accordance with this Standard shall include the following. 5.2 If the size and unevenness accuracy, surface quality level and packaging method are not specified in the order contract, then the normal size, unevenness accuracy, and surface quality level are high level surfaces.6 Size, shape, weight6.1 The nominal thickness of steel sheet and strip is the sum of the thickness of the substrate and the thickness of the coating. 6.2 The size, shape and allowable deviation of steel sheet and strip shall meet the requirements of GB/T 708.7 Technical requirements7.1 Substrate Steel sheet and strip can use products in GB/T 5213, GB/T 20564 (all parts) as substrates. According to the negotiation between the supplier and the purchaser, products other than the above-mentioned standards can also be used as the substrate. 7.3 Smelting method Steel shall be smelted by oxygen converter or electric furnace. Unless otherwise specified, the smelting method is chosen by the supplier. 7.4 Mechanical and technological properties 7.4.3 For electro-galvanized, zinc-nickel alloy coated steel sheet and strip on other substrates, the requirements for mechanical and technological properties shall be negotiated and determined at the time of order. 7.5 Coating weight 7.5.1 The available weight range of pure zinc coating and zinc-nickel alloy coating shall meet the requirements of Table 3. 7.5.2 The recommended coating weight codes are shown in Table 4.If the purchaser has special requirements, other coating weights can also be provided after negotiation between the supplier and the purchaser. 7.5.3 The weight of single-sided and single-point coatings of equal-thickness coatings shall meet the requirements of Table 4. 7.5.4 For unequal-thickness coating, single-sided coating and equal-thickness 7.6 Coating adhesion The adhesion of the coating shall be tested according to the test method specified in GB/T 39130.Unless otherwise specified, the test method is 180° bend test. The diameter of the bending indenter is selected by the supplier. If the purchaser has special requirements, it shall be negotiated when ordering. 7.7 Surface quality 7.8 Surface treatment 7.8.1 Overview When using this product, the user shall choose the appropriate surface treatment method according to its processing technology, painting method, painting equipment and try to shorten the storage time of this product. 7.8.2 Chromic acid passivation (C), trivalent chromium passivation (C3) and chromium-free passivation (CN) 7.8.3 Chromic acid passivation + oiling (CO), trivalent chromium passivation + oiling (CO3) and chromium-free passivation + oiling (CON) The surface treatment can further reduce the white rust or black rust on the surface of the product during transportation and storage. 7.8.4 Phosphating (including sealing treatment) (PC), phosphating (including trivalent chromium sealing) (PC3) and phosphating (including chromium-free sealing) (PC5) 7.8.5 Phosphating (including sealing treatment) + oiling (PCO), phosphating (including trivalent chromium sealing) + oiling (PCO3) and phosphating (including chromium-free sealing) + oiling (PCON) This surface treatment can reduce white rust or black rust on the surface of the product and can improve the forming performance of the steel sheet. 7.9 Corrosion resistance of coating 7.9.1 Agreed by the supplier and the purchaser and indicated in the contract, it may evaluate the corrosion resistance of steel sheets and strips. The test methods, rating standards and acceptance conditions for corrosion resistance evaluation shall be agreed upon when ordering. 7.9.2 Corrosion resistance is generally evaluated by neutral salt spray test. The rating standards and acceptance conditions of the salt spray test results shall be agreed upon by the supplier and the purchaser at the time of ordering. 7.10 Other technical requirements Other technical requirements such as tensile strain marks shall meet the requirements of the corresponding substrate.8 Test methodsThe inspection item and test method of each batch of steel sheets and strips shall meet the requirements of Table 6.9 Inspection rules9.1 The inspection and acceptance of steel sheets and strips are carried out by the supplier’s inspection department. 9.2 Steel sheets and strips shall be inspected in batches. 9.3 The number of samples, sample size and sample position of the test items for each batch of steel sheets and strips shall meet the requirements of Table 6. 9.4 The re-inspection of steel sheets and strips shall meet the requirements of GB/T 17505. ......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 15675-2020 be delivered?Answer: The full copy PDF of English version of GB/T 15675-2020 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 15675-2020_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 15675-2020_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 15675-2020 -- 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.Question 5: Should I purchase the latest version GB/T 15675-2020?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 15675-2020 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.How to buy and download a true PDF of English version of GB/T 15675-2020?A step-by-step guide to download PDF of GB/T 15675-2020_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 15675-2020". 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 |
