GB/T 35840.3-2018 PDF EnglishUS$150.00 · In stock · Download in 9 seconds
GB/T 35840.3-2018: Steels for Plastic Mould - Part 3: Corrosion Resistant Steels 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 35840.3-2018: Steels for Plastic Mould - Part 3: Corrosion Resistant Steels---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/GBT35840.3-2018GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 77.140.35 H 40 Steels for Plastic Mould - Part 3. Corrosion Resistant Steels Issued on: MAY 14, 2018 Implemented on: FEBRUARY 1, 2019 Issued by. State Administration for Market Regulation of the People’s Republic of China; Standardization Administration Committee of the People’s Republic of China. Table of ContentsForeword ... 3 1 Scope ... 4 2 Normative References ... 4 3 Classification ... 8 4 Content of Ordering ... 8 5 Dimension, Appearance and Weight ... 8 6 Technical Requirements ... 9 7 Test Methods ... 13 8 Inspection Rules ... 15 9 Packaging, Marking and Certification ... 15 Appendix A (normative appendix) ... 16 Appendix B (normative appendix) ... 18 Steels for Plastic Mould - Part 3. Corrosion Resistant Steels1 ScopeThis Part of GB/T 35840 specifies the content of ordering, dimension, appearance, weight, technical requirements, test methods, inspection rules, packaging, marking and certification of corrosion resistant steels for plastic mould. This Part is applicable to corrosion resistant round steel, square steel and flat steel (hereinafter referred to as steels) that are used for the manufacture of plastic moulds through hot rolling, forging and machining delivery.2 Normative ReferencesThe following documents are indispensable to the application of this Standard. In terms of references with a specified date, only versions with a specified date are applicable to this Standard. The latest version (including all the modifications) of references without a specified date is also applicable to this Standard. GB/T 223.3 Methods for Chemical Analysis of Iron, Steel and Alloy - The Diantipyryl Methane Phosphomolybdate Gravimetric Method for the Determination of Phosphorus Content GB/T 223.5 Steel and Iron - Determination of Acid-soluble Silicon and Total Silicon Content - Reduced Molybdosilicate Spectrophotometric Method GB/T 223.11 Iron, Steel and Alloy - Determination of Chromium Content - Visual Titration or Potentiometric Titration Method GB/T 223.13 Methods for Chemical Analysis of Iron, Steel and Alloy - The Ammonium Ferrous Sulfate Titration Method for the Determination of Vanadium Content GB/T 223.14 Methods for Chemical Analysis of Iron, Steel and Alloy - The N- benzoy-N-phenylhydroxylamine Extraction Photometric Method for the Determination of Vanadium Content GB/T 223.18 Methods for Chemical Analysis of Iron, Steel and Alloy - The Sodium Thiosulfate Separation Iodometric Method for the Determination of Copper Content GB/T 223.19 Methods for Chemical Analysis of Iron, Steel and Alloy - The Neocuproine - Chloroform Extraction Photometric Method for the Determination of Copper Content Perchloric Acid Dehydration Gravimetric Method for the Determination of Silicon Content GB/T 223.61 Methods for Chemical Analysis of Iron, Steel and Alloy – The Ammonium Phosphomolybdate Volumetric Method for the Determination of Phosphorus Content GB/T 223.62 Methods for Chemical Analysis of Iron, Steel and Alloy - The Butyl Acetate Extraction Photometric Method for the Determination of Phosphorus Content GB/T 223.63 Methods for Chemical Analysis of Iron, Steel and Alloy - The Sodium (potassium) Periodate Photometric Method for the Determination of Manganese Content GB/T 223.64 Iron, Steel and Alloy - Determination of Manganese Content - Flame Atomic Absorption Spectrometric Method GB/T 223.67 Iron, Steel and Alloy - Determination of Sulfur Content - Methylene Blue Spectrophotometric Method GB/T 223.68 Methods for Chemical Analysis of Iron, Steel and Alloy - The Potassium Iodate Titration Method after Combustion in the Pipe Furnace for the Determination of Sulfur Content GB/T 223.69 Iron, Steel and Alloy - Determination of Carbon Contents - Gas- volumetric Method after Combustion in the Pipe Furnace GB/T 223.71 Methods for Chemical Analysis of Iron, Steel and Alloy - The Gravimetric Method after Combustion in the Pipe Furnace for the Determination of Carbon Content GB/T 223.72 Iron, Steel and Alloy - Determination of Sulfur Content - Gravimetric Method GB/T 223.76 Methods for Chemical Analysis of Iron, Steel and Alloy - The Flame Atomic Absorption Spectrometric Method for the Determination of Vanadium Content GB/T 223.82 Steel and Iron - Determination of Hydrogen Content - Inert Gas Impulse Fusion Heat Conductivity Method GB/T 223.85 Steel and Iron - Determination of Sulfur Content – Infrared Absorption Method after Combustion in an Induction Furnace GB/T 223.86 Steel and Iron - Determination of Total Carbon Content - Infrared Absorption Method after Combustion in an Induction Furnace3 ClassificationIn accordance with methods of application and processing, steels can be divided into 2 types as follows. a) Steel for pressure work UP 1) Hot pressure processing UHP 2) Cold pressure processing UCP b) Steel for cut work UC Methods of steel application and processing shall be indicated in the contract.4 Content of OrderingContract or order of steels that are purchased in accordance with this Part shall include the following content. a) Serial number of this Part; b) Product name; c) Nameplate (refer to 6.1); d) Smelting method (refer to 6.2); e) Product specification; f) Dimension, appearance and allowable deviation (refer to Chapter 5); g) Status of delivery (refer to 6.3); h) Weight (or quantity); i) Special requirements.5 Dimension, Appearance and Weight5.1 Dimension, appearance and allowable deviation of hot-rolled round steel and square steel shall comply with the stipulation in 5.1.1 in GB/T 1299-2014. 5.2 Dimension, appearance and allowable deviation of hot-rolled flat steel shall comply with the stipulation in 5.1.2 in GB/T 1299-2014. contract.8 Inspection Rules8.1 Inspection and Acceptance Check Quality inspection and acceptance check of steels shall be undertaken by the supply side’s technical quality supervision department. If necessary, the demand side is entitled to inspect and conduct acceptance check in accordance with the stipulations in this Part. 8.2 Batch Rules 8.2.1 Steels shall be inspected and accepted by batch. Each batch shall be constituted of steels of the same nameplate, furnace number, processing purpose, delivery status, specification and thermal treatment furnace number. 8.2.2 Each batch of electro-slag re-melting steel shall be constituted of steel under the same sub-furnace number, processing purpose, delivery status, specification and thermal treatment furnace number. On the premise of guaranteeing stable technique and compliance with various requirements in this Part, a batch can be formed in accordance with the primary furnace number of electro-slag re-melting. However, 1 PCS shall be taken as a sample from each sub-furnace number for the chemical composition test. 8.3 Sampling Size and Position The sampling size and position of steel test shall comply with the stipulation in Table 5. 8.4 Re-inspection and Determination 8.4.1 When the inspection result fails to comply with the requirements in this Part, re- inspection can be conducted. Re-inspection and determination shall comply with the stipulations in GB/T 17505. 8.4.2 The various measured value of steel inspection shall be revised in accordance with revised value comparison method. Rules of numerical revision shall comply with the stipulations in GB/T 8170.9 Packaging, Marking and CertificationPackaging, marking and certification of steel shall comply with the stipulations in GB/T 2101. ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. 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