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GB/T 33811-2017: Alloy Tool and Mould Steel Sheets and Plates 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 33811-2017: Alloy Tool and Mould Steel Sheets and Plates---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/GBT33811-2017GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 77.140.50 H 46 Alloy Tool and Mould Steel Sheets and Plates Issued on: MAY 31, 2017 Implemented on: DECEMBER 1, 2017 Issued by. General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China; Standardization Administration of the People's Republic of China. 3. No action is required - Full-copy of this standard will be automatically & immediately delivered to your EMAIL address in 0~60 minutes. Table of ContentsForeword ... 3 1 Application Scope ... 4 2 Normative References ... 4 3 Ordering Content ... 6 4 Dimensions and Shape ... 6 5 Technical Requirements ... 8 6 Test Methods ... 11 7 Inspection Rules ... 12 8 Packaging, Marking and Quality Certification ... 13 Annex A (Informative) Main Characteristics and Purposes of All Designations ... 14ForewordThis Standard was drafted in accordance with the rules given in GB/T 1.1-2009. This Standard was proposed by China Iron and Steel Association. This Standard shall be under the jurisdiction of the National Standardization Technical Committee on Steels (SAC/TC 183). The drafting organizations of this Standard. Northeast Special Steel Shares Co., Ltd., China Metallurgical Information and Standardization Institute. The main drafters of this Standard. Wang Lin, Mou Feng, Ji Xiao, Liu Yufen, Dai Qiang. Alloy Tool and Mould Steel Sheets and Plates1 Application ScopeThis Standard specifies the ordering content, dimensions, shape, weight, specifications, test methods, inspection rules, and packaging, marking and quality certification of alloy tool and mould steel sheets and plates (hereinafter referred to as “steel sheets and plates”). This Standard applies to cold-rolled steel sheets and plates of thickness not greater than 4 mm and hot-rolled steel sheets and plates of thickness not greater than 10 mm.2 Normative ReferencesThe following referenced documents are indispensable for the application of this document. For dated references, only the edition dated applies to this document. For undated references, the latest edition of the referenced documents (including all amendments) applies to this Standard. 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- Benzoyl-N-Phenylhydroxylamine Extraction Photometric Method for the Determination of Vanadium Content GB/T 223.22, Methods for Chemical Analysis of Iron, Steel and Alloy – The Nitroso- R-Salt Spectrophotometric Method for the Determination of Cobalt Content GB/T 223.23, Iron, Steel and Alloy – Determination of Nickel Content – the Dimethylglyoxime Spectrophotometric Method GB/T 223.26, Iron, Steel and Alloy – Determination of Molybdenum Content – the Thiocyanate Spectrophotometric Method GB/T 223.28, Methods for Chemical Analysis of Iron Steel and Alloy – The α - Benzoin Oxime Gravimetric Method for the Determination of Molybdenum Content GB/T 223.40, Iron, Steel and Alloy – Determination of Niobium Content by the Sulphochlorophenol S Spectrophotometric Method GB/T 223.43, Iron Steel and Alloy – Determination of Tungsten Content – Gravimetric Method and Spectrophotometric Method GB/T 223.58, Methods for Chemical Analysis of Iron, Steel and Alloy – The Sodium Arsenite-Sodium Nitrite Titrimetric Method for the Determination of Manganese Content GB/T 223.60, Methods for Chemical Analysis of Iron, Steel and Alloy – The Perchloric Acid Dehydration Gravimetric Method for the Determination of Silicon 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 223.68, 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 223.71, 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 224, Determination of Depth of Decarburization of Steels GB/T 225, Steel - Hardenability Test by End Quenching (Jominy Test) GB/T 226, Test Method for Macrostructure and Defect of Steel by Etching GB/T 231.1, Metallic Materials – Brinell Hardness Test – Part 1. Test Method GB/T 247, 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 708, Dimensions, Shape, Weight and Tolerances for Cold-Rolled Plates and Sheets GB/T 709-2006, Dimension, Shape, Weight and Tolerances for Hot-Rolled Steel Plates and Sheets GB/T 1299-2014, Tool and Mould Steels GB/T 4336, Carbon and Low-alloy Steel – Determination of Multi-element Contents – Spark Discharge Atomic Emission Spectrometric Method (Routine Method) GB/T 6394, Metal – Methods for Estimating the Average Grain Size GB/T 8651, Flaw Detection Method by the Ultrasonic Plate Wave for Metal Plates 4.4.1 Steel plates and sheets of other dimensions may be supplied, which shall be as agreed on by the supplier and the purchaser and stated in the contract. 4.4.2 Steel plates and sheets of higher rolling precision may be supplied, which shall be as agreed on by the supplier and the purchaser and stated in the contract.5 Technical Requirements5.1 Designation and chemical composition The designation and chemical composition (product analysis composition) of steels shall be as specified in Table 3. Steels of other designations in GB/T 1299-2014 may also be supplied as required by the purchaser, which shall be stated in the contract. 5.2 Smelting method Steels shall be smelted with the method of electric furnace + vacuum refining or electroslag remelting. When the electroslag remelting smelting is required, it shall be stated in the contract. 5.3 Delivery condition 5.3.1 Steel plates and sheets shall be delivered in the state of annealing. 5.3.2 Steel plates and sheets may be delivered in the state of acid pickling as required by the purchaser, which shall be stated in the contract. 5.4 Hardness 5.4.1 The Brinell hardness of steel plates and sheets under the delivery condition shall be as specified in Table 4. 5.4.2 For steel plates and sheets of thickness not greater than 1.5 mm, when the supplier is capable of ensuring the hardness under the delivery condition is as specified in Table 4, the testing for hardness under the delivery condition may be omitted. 5.5 Macrostructure There shall be no visible shrinking hole remnants, cracks and inclusions on the acid pickling macrostructural test pieces of steel plates and sheets or steel billets. 5.6 Nonmetallic inclusions The nonmetallic inclusions of steel plates and sheets shall be tested and assessed in accordance with Method A in GB/T 10561-2005; the results shall be as specified in Table 5. When delivery is made as required for Group 1, it shall be stated in the contract, or they shall be delivered as required for Group 2. tested as required by the purchaser, which shall be stated in the contract; the specific indexes are as agreed on by the supplier and the purchaser. 5.9 Surface quality 5.9.1 Steel plates and sheets shall not be layered; the surfaces shall be free from bubbles, inclusions, scars and cracks. 5.9.2 The surface of cold-rolled steel plates and sheets shall be free from hard spots small scratches, indentations, local pits and roller marks. Their depth shall not be greater than half of the tolerances and they shall not make steel plates and sheets less than the minimum allowable thickness. 5.9.3 The surface of hot-rolled steel plates and sheets shall be free from hard spots, indentations, scratches and thin scales. Their depth shall be within the tolerance range and they shall not make steel plates and sheets less than the minimum allowable thickness. 5.9.4 The local defects of steel plates and sheets are allowed to be removed; the depth of removal shall not make steel plates and sheets less than the minimum allowable thickness. 5.10 Special requirements The following test items may be added as required by the purchaser, which shall be as agreed on by the supplier and the purchaser and stated in the contract. a) special chemical composition; b) special hardness; c) grain size; d) ultrasonic testing; e) other requirements.6 Test Methods6.1 Test items and test methods for steel plates and sheets The test items and test methods for each batch of steel plates and sheets shal... ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. 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