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GB/T 1174-2022 English PDF

GB/T 1174-2022 (GB/T1174-2022, GBT 1174-2022, GBT1174-2022)
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GB/T 1174-2022English290 Add to Cart 0--9 seconds. Auto-delivery Cast bearing alloy Valid GB/T 1174-2022
GB/T 1174-1992English420 Add to Cart 0--9 seconds. Auto-delivery Cast bearing metals Obsolete GB/T 1174-1992
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BASIC DATA
Standard ID GB/T 1174-2022 (GB/T1174-2022)
Description (Translated English) Cast bearing alloy
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard J31
Classification of International Standard 77.150.99
Word Count Estimation 18,146
Date of Issue 2022-10-14
Date of Implementation 2022-10-12
Older Standard (superseded by this standard) GB/T 1174-1992
Drafting Organization Ningbo Zhengyuan Copper Alloy Co., Ltd., Jiangsu University of Science and Technology, Harbin Electric Machinery Factory Co., Ltd., Zhejiang Yongcheng Machinery Co., Ltd., Huzhou Sanduo Bearing Co., Ltd., Huazhong University of Science and Technology, Ningbo Institute of Technology, Nantong Hongjin Metal Aluminum Co., Ltd., Chiping Xinfa Aluminum Products Co., Ltd., Shanxi Ruige Metal New Material Co., Ltd., Ningbo Branch of China Academy of Ordnance Science, Guangdong Yangshan United Precision Manufacturing Co., Ltd., Shenyang Foundry Research Institute Co., Ltd., Yantai Standard Metrology Inspection and Testing Center , Shenyang University of Technology, Dongfeng (Shiyan) Nonferrous Casting Co., Ltd., CITIC Dicastal Co., Ltd.
Administrative Organization National Foundry Standardization Technical Committee (SAC/TC 54)
Proposing organization National Foundry Standardization Technical Committee (SAC/TC 54)
Issuing agency(ies) State Administration for Market Regulation, National Standardization Management Committee


GB/T 1174-2022 GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 77.150.99 CCS J 31 Replacing GB/T 1174-1992 Cast bearing alloy ISSUED ON: OCTOBER 12, 2022 IMPLEMENTED ON: OCTOBER 12, 2022 Issued by: State Administration for Market Regulation; Standardization Administration of the People’s Republic of China. Table of Contents Foreword ... 3 1 Scope ... 5 2 Normative references ... 5 3 Terms and definitions ... 8 4 Alloy designations and codes ... 8 5 Technical requirements ... 9 6 Test methods ... 16 7 Inspection rules ... 17 8 Marking, packaging, transportation, storage and quality certificate ... 18 Appendix A (Normative) Test pieces for hardness inspection of tin-based, lead-based bearing alloys ... 19 Cast bearing alloy 1 Scope This document specifies the cast bearing alloy designations and codes, technical requirements, test methods, inspection rules, marking, packaging, transportation, storage and quality certificates. This document applies to cast tin-based, lead-based, copper-based and aluminum-based bimetallic plain bearings, as well as copper-based, zinc-based and aluminum-based alloy integral plain bearings. 2 Normative references The following documents are normatively referenced in this document and are indispensable for its application. For dated references, only the version corresponding to that date is applicable to this document; for undated references, the latest version (including all amendments) is applicable to this document. GB/T 228.1, Metallic materials - Tensile testing - Part 1: Method of test at room temperature GB/T 231.1, Metallic materials - Brinell hardness test - Part 1: Test method GB/T 1173, Casting aluminium alloy GB/T 1175, Casting zinc alloys GB/T 1176, Casting copper and copper alloys GB/T 5121.1, Methods for chemical analysis of copper and copper alloys - Part 1: Determination of copper content GB/T 5121.2, Methods for chemical analysis of copper and copper alloys - Part 2: Determination of phosphorus content GB/T 5121.3, Methods for chemical analysis of copper and copper alloys - Part 3: Determination of lead content GB/T 5121.4, Methods for chemical analysis of copper and copper alloys - Part 4: Determination of carbon and sulfur content GB/T 5121.5, Methods for chemical analysis of copper and copper alloys - Part 5: Determination of nickel content GB/T 5121.6, Methods for chemical analysis of copper and copper alloys - Part 6: Determination of bismuth content GB/T 5121.7, Methods for chemical analysis of copper and copper alloys - Part 7: Determination of arsenic content GB/T 5121.9, Methods for chemical analysis of copper and copper alloys - Part 9: Determination of iron content GB/T 5121.10, Methods for chemical analysis of copper and copper alloys - Part 10: Determination of tin content GB/T 5121.11, Methods for chemical analysis of copper and copper alloys - Part 11: Determination of zinc content GB/T 5121.12, Methods for chemical analysis of copper and copper alloys - Part 12: Determination of antimony content GB/T 5121.13, Methods for chemical analysis of copper and copper alloys - Part 13: Determination of aluminium content GB/T 5121.23, Methods for chemical analysis of copper and copper alloys - Part 23: Determination of silicon content GB/T 5611, Foundry terminology GB/T 8063, Designation of cast nonferrous metals and their alloys GB/T 8888, Wrought heavy non-ferrous metal products - packing, marking, transportation, storing and certificate of quality GB/T 12689.1, Methods for chemical analysis of zinc and zinc alloys - Part 1: Determination of aluminum content – Chrome azurol S-polyethylene glycol octyl phenyl ether-ethyl pyridine bromine spectrophotometry, Chrome azurol S spectrophotometric method and EDTA titrimetry GB/T 12689.3, The methods for chemical analysis of zinc and zinc alloys - The determination of cadmium content - The flame atomic absorption spectrometric method GB/T 12689.4, The methods for chemical analysis of zinc and zinc alloys - The determination of copper content - The lead diethyldithio-carbamate spectrophotometric method and the flame atomic absorption spectrometric method and the electrolytic method GB/T 12689.5, The methods for chemical analysis of zinc and zinc alloys - The determination of iron content - The sulfosalicylic acid spectrometric method and the flame atomic absorption spectrometric method YS/T 475.1, Methods for chemical analysis of cast bearing metals - Determination of tin content - Potassium iodate titrimetric method YS/T 475.2, Methods for chemical analysis of cast bearing metals - Determination of lead content - EDTA titrimetric method YS/T 475.3, Methods for chemical analysis of cast bearing metals - Determination of antimony content - Cerium sulfate titrimetric method YS/T 475.4, Methods for chemical analysis of cast bearing metals - Determination of copper content - Hyposulphite titrimetric method YS/T 475.5, Methods for chemical analysis of cast bearing metals - Determination of arsenic content - Molybdoantimonyarsenate blue spectrophotometric method YS/T 475.6, Methods for chemical analysis of cast bearing metals - Determination of aluminium content – Chrome azurol S spectrophotometric method YS/T 475.7, Methods for chemical analysis of cast bearing metals - Determination of lead, copper, iron, bismuth, zinc, cadmium, content - AAS method 3 Terms and definitions Terms and definitions determined by GB/T 5611 are applicable to this document. 4 Alloy designations and codes 4.1 Representation of alloy designations The cast bearing alloy designations shall be represented in accordance with the provisions of GB/T 8063. 4.2 Alloy casting method codes S – sand casting; J – permanent mold casting; Li – centrifugal casting. 4.3 Alloy heat treatment state codes T5 – solution treatment plus incomplete artificial aging. 6.1.2.2 When the analysis results are in dispute, arbitration shall be carried out according to GB/T 5121.1~5121.7, GB/T 5121.9~5121.13 and GB/T 5121.23. 6.1.3 Composition analysis of zinc-based bearing alloy 6.1.3.1 The composition analysis of zinc-based bearing alloy shall be carried out in accordance with the provisions of GB/T 12689.1 and GB/T 12689.3~12689.10. Where analytical precision is guaranteed, other detection methods are allowed. 6.1.3.2 When the analysis results are in dispute, arbitration shall be carried out according to GB/T 12689.1 and GB/T 12689.3~12689.10. 6.1.4 Composition analysis of aluminum-based bearing alloy 6.1.4.1 The composition analysis of aluminum-based bearing alloy shall be carried out in accordance with the provisions of GB/T 20975.3~20975.5, GB/T 20975.7, GB/T 20975.8, GB/T 20975.10, GB/T 20975.12, GB/T 20975.14 and GB/T 20975.16. Where analytical precision is guaranteed, other detection methods are allowed. 6.1.4.2 When the analysis results are in dispute, arbitration shall be carried out according to GB/T 20975.3~20975.5, GB/T 20975.7, GB/T 20975.8, GB/T 20975.10, GB/T 20975.12, GB/T 20975.14 and GB/T 20975.16. 6.2.1 Mechanical properties 6.2.1 The tensile test shall be carried out in accordance with the provisions of GB/T 228.1. 6.2.2 The hardness test shall be carried out in accordance with the provisions of GB/T 231.1. 6.2.3 The compression test shall be carried out in accordance with the provisions of GB/T 16748. 7 Inspection rules 7.1 Batch Bearing alloys are generally batched according to the smelting furnace. In the case of stable production (stable personnel, raw materials, smelting process, test methods, inspection and other procedures), the same alloy smelted in one work shift and in different furnaces can also be regarded as one batch. 7.2 Sampling method 7.2.1 The test piece can be taken from the casting body or from a single-cast test piece cast at the same time. The casting-mold conditions of the single-cast test pieces shall be the same as those of the product castings, and the heat treatment of the test pieces shall be carried out in the same heat treatment process as that of the same batch of castings. 7.2.2 Mechanical property and chemical composition inspection shall be carried out in batches, and one sample in each batch shall be inspected. 7.2.3 For the chemical composition inspection, only the main elements are required for analysis, and the content of other elements can be randomly checked according to the requirements of the purchaser. 7.3 Judgment and re-inspection 7.3.1 Where the chemical composition fails the first test, it is allowed to inspect two more test pieces; if the analysis results meet the requirements, judge the batch of alloy to be qualified, otherwise, judge it as unqualified. 7.3.2 During the mechanical property inspection, inspect one sample for the first time. If the inspection result meets the standard requirements, judge this batch of alloy to qualified; if not, it is allowed to inspect two more test pieces for the corresponding items. If the analysis results meet the requirements, judge the batch of alloy as qualified, otherwise, judge it as unqualified. 7.3.3 Where the sample has casting defects, or the inspection result is unqualified due to the failure of the test itself, it is an invalid test and will not be counted in the number of inspections. Replace the test pieces for a re-inspection. 7.3.4 When the hardness of the test piece is unqualified, it is allowed to take castings of the same batch for retesting, where the number of castings to be sampled shall not be less than five. If there are less than five castings in the same batch, inspect all of them. Where the hardness of any casting is unqualified in the re-inspection of the selected castings, the batch of castings shall be inspected one by one. 8 Marking, packaging, transportation, storage and quality certificate The marking, packaging, transportation, storage and quality certificate of the product shall comply with the provisions of GB/T 8888. ......