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GB/T 24186-2022 English PDF (GB/T 24186-2009)

GB/T 24186-2022_English: PDF (GB/T24186-2022)
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GB/T 24186-2022English230 Add to Cart 0--9 seconds. Auto-delivery High strength abrasion resistant steel plate, sheet and strip for construction machine Valid GB/T 24186-2022
GB/T 24186-2009English70 Add to Cart 0--9 seconds. Auto-delivery High strength abrasion resistant steel plates for construction machine Obsolete GB/T 24186-2009


BASIC DATA
Standard ID GB/T 24186-2022 (GB/T24186-2022)
Description (Translated English) High strength abrasion resistant steel plate, sheet and strip for construction machine
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard H46
Classification of International Standard 77.140.50
Word Count Estimation 14,159
Date of Issue 2022-10-14
Date of Implementation 2023-05-01
Older Standard (superseded by this standard) GB/T 24186-2009
Drafting Organization Shandong Iron and Steel Group Rizhao Co., Ltd., Hunan Valin Lianyuan Iron and Steel Co., Ltd., Nanjing Iron and Steel Co., Ltd., Metallurgical Industry Information Standard Research Institute, Northeastern University, Anyang Iron and Steel Co., Ltd., Hunan Valin Xiangtan Iron and Steel Co., Ltd., Xinyu Iron and Steel Co., Ltd. Company, Hebei Puyang Iron and Steel Co., Ltd., Shougang Group Co., Ltd., Handan Branch of Hebei Iron and Steel Co., Ltd., Laiwu Branch of Shandong Iron and Steel Co., Ltd., General Iron and Steel Research Institute, Jiangyin Xingcheng Special Steel Co., Ltd., China Coal Zhangjiakou Coal Mining Machinery limited liability company
Administrative Organization National Steel Standardization Technical Committee (SAC/TC 183)
Proposing organization China Iron and Steel Association
Issuing agency(ies) State Administration for Market Regulation, National Standardization Management Committee

BASIC DATA
Standard ID GB/T 24186-2009 (GB/T24186-2009)
Description (Translated English) High strength abrasion resistant steel plates for construction machine
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard H46
Classification of International Standard 77.140.50
Word Count Estimation 8,822
Date of Issue 2009-06-25
Date of Implementation 2010-04-01
Quoted Standard GB/T 222; GB/T 223.3; GB/T 223.9; GB/T 223.11; GB/T 223.12; GB/T 223.13; GB/T 223.14; GB/T 223.17; GB/T 223.23; GB/T 223.26; GB/T 223.54; GB/T 223.58; GB/T 223.59; GB/T 223.60; GB/T 223.61; GB/T 223.62; GB/T 223.63; GB/T 223.64; GB/T 223.67; GB/T 223.68; GB/T 223.69; GB/T 223.71; GB/T 223.72; GB/T 223.76; GB/T 223.78; GB/T 228; GB/T 229; GB/T 231.1; GB/T 247; GB/T 709; GB/T 2975; GB/T 4336; GB/T 17505; GB/T 20066; YB/T 081
Drafting Organization Jinan Iron and Steel Group Co., Ltd.
Administrative Organization National Steel Standardization Technical Committee
Regulation (derived from) National Standard Approval Announcement 2009 No.9 (Total No.149)
Proposing organization China Iron and Steel Association
Issuing agency(ies) Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China; Standardization Administration of China
Summary This standard specifies the mechanical engineering grade steel with high strength wear-resistant, dimensions, shape, test methods, , weight and tolerance, technical requirements for inspection rules, packaging, marking and quality certification. This standard applies to mining, construction, agriculture and construction machinery wear-resistant structural parts with thickness less than 80 mm of steel. Wear plate requirements of this standard is also applicable to other areas.


GB/T 24186-2022 GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 77.140.50 CCS H 46 Replacing GB/T 24186-2009 High strength abrasion resistant steel plate, sheet and strip for construction machine ISSUED ON: OCTOBER 12, 2022 IMPLEMENTED ON: MAY 01, 2023 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 ... 7 4 Designation representation method ... 7 5 Ordering content ... 7 6 Size, shape, weight... 8 7 Technical requirements ... 9 8 Test methods ... 14 9 Inspection rules ... 14 10 Packaging, marks and quality certificate ... 15 Annex A (informative) Chemical composition of TiC reinforced steel ... 16 High strength abrasion resistant steel plate, sheet and strip for construction machine 1 Scope This document specifies the designation representation method, ordering content, size, shape, weight, technical requirements, test methods, inspection rules, packaging, marks and quality certificates for high strength abrasion resistant steel plate, sheet and strip for construction machine. This document applies to single-rolled steel plates with a thickness not greater than 120mm, steel sheets and strips and sheared steel plates with a thickness not greater than 25.4mm (hereinafter referred to as "steel plates, sheets and strips") for abrasion- resistant structural components of engineering machinery such as mining machinery, construction machinery and agriculture machinery. This document can be used as reference for the abrasion-resistant steel plates, sheets and strips used in other fields. 2 Normative references The 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 222, Permissible tolerances for chemical composition of steel products 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 223.9, 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 223.17, Methods for chemical analysis of iron, steel and alloy - The diantipyrylmethane photometric method for the determination of titanium 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 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 3 Terms and definitions This document does not have terms and definitions that need to be defined. 4 Designation representation method The designation of steel consists of two parts: the first letter of the Chinese pinyin "NM" for "abrasion resistant" and the specified surface Brinell hardness value. The designation of steel with low temperature toughness requirements consists of three parts: the Chinese pinyin initials "NM" for "abrasion resistant", the specified surface Brinell hardness value and the quality level symbol (D, E). Example 1: NM500 NM - the initials of the Chinese pinyin for "abrasion resistant"; 500 - The value of surface Brinell hardness. Example 2: NM500D NM - the initials of the Chinese pinyin for "abrasion resistant"; 500 - The value of surface Brinell hardness; D - The symbol of quality level. 5 Ordering content The contract or order for ordering according to this document shall include the following contents: a) Reference to this document; b) Product name; c) Designation; d) Size and roughness accuracy; added. The alloying elements and their content shall be indicated in the quality certificate. 7.1.3 When Cu is used as a residual element in steel, its content shall not exceed 0.30%. The As content shall not exceed 0.08%. If the supplier can guarantee it, no analysis is required. 7.1.4 The carbon equivalent of steels that require low temperature toughness shall meet the requirements in Table 3. See formula (1) for carbon equivalent calculation: Where, CEV - Carbon equivalent, %; C, Mn, Cr, Mo, V, Cu, Ni - Mass fraction of the chemical composition of the steel that requires low temperature toughness, %. 7.1.5 When the total aluminum (Alt) content is used for calculation, the Alt content shall not be less than 0.015%. The Alt content of steel that requires low temperature toughness shall not be less than 0.020%. 7.1.6 Agreed by the supplier and the purchaser and indicated in the contract, see Annex A for the chemical composition of the TiC reinforced steel. 7.1.7 When the purchaser requires analysis of the chemical composition of the finished product, the allowable deviation of the chemical composition of the finished product shall comply with the provisions of GB/T 222. 7.2 Smelting method Steel is smelted by converter or electric furnace. Carry out the refining outside the furnace. 7.3 Delivery condition The steel is delivered in the condition of quenching, quenching + tempering, TMCP + tempering, or in the condition of hot rolling (steel in the condition of hot rolling before heat treatment). 7.4 Mechanical and process properties 7.4.1 Hardness test The surface Brinell hardness of steel plates, sheets and strips shall meet the requirements in Table 4. When the purchaser has requirements for the Brinell hardness of the center of the section, the requirements in Table 4 can be referred to after 7.4.5 The mechanical and technological properties of TiC reinforced steel plates, sheets and strips can be determined through negotiation between the supplier and the purchaser. 7.4.6 Steel plates, sheets and strips delivered in hot-rolled condition are not subjected to the mechanical property test. If the purchaser has special requirements, both parties can negotiate. 7.5 Surface quality 7.5.1 There shall be no defects such as cracks, bubbles, scars, folds and inclusions on the surface of steel plates, sheets and strips. There shall be no visible delamination. If there are surface defects above, it is allowed to clean. The cleaning depth is calculated from the actual size of the steel plate. It shall not exceed half of the steel plate thickness tolerance. The minimum thickness of the steel plate shall be guaranteed. Defect cleaning shall be smooth without edges and corners. 7.5.2 The surface of the steel plates, sheets and strips is allowed to have a thin layer of iron oxide scale and rust that does not hinder the inspection of the surface, surface roughness, scratches, indentations and other local defects caused by the peeling off of the pressed iron oxide scale. But the depth shall not be greater than half of the thickness tolerance. The minimum thickness of the steel plate shall be guaranteed. 7.5.3 Steel plates, sheets and strips shall not be repaired by welding. 7.5.4 Agreed by the supplier and the purchaser and indicated in the contract, the surface quality of steel plates, sheets and strips can meet the requirements of GB/T 14977. 7.6 Non-destructive testing Agreed by the supplier and the purchaser and indicated in the contract, the internal quality of steel plates, sheets and strips can be inspected by non-destructive testing methods. The testing standards and qualification levels shall be specified in the contract. ......


GB/T 24186-2009 GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 77.140.50 H 46 High Strength Abrasion Resistant Steel Plates for Construction Machine ISSUED ON. JUNE 25, 2009 IMPLEMENTED ON. APRIL 1, 2010 Issued by. General Administration of Quality Supervision, Inspection and Quarantine (AQSIQ); Standardization Administration (SAC) of the People's Republic of China. Table of Contents Foreword ... 3  1 Scope ... 4  2 Normative References ... 4  3 Order content ... 7  4 Designation Denotation ... 7  5 Dimension, Shape, Weight and Tolerance ... 7  6 Technical Requirements ... 7  7 Test Method ... 9  8 Inspection rules ... 10  9 Packaging, marking and quality certificate ... 10  Annex A ... 11  Foreword  Annex A of this standard is informative. This standard was proposed by China Iron & Steel Association. This standard shall be under jurisdiction of China Steel Standardization Technical Committee. Main drafting organizations of this standard. Jigang Group Co., Ltd., China Metallurgical Information Standardization Research Institute, Wuyang Steel & Iron Co., Ltd., Hunan Hualing Lianyuan Steel & Iron Co., Ltd. Chief drafting staffs of this standard. Gao Ling, Feng Yong, Wang Xiaohu, Chao Feiyan, Sun Genling, Xie Liangfa, Wang Xin, Wen Dezhi, Zhou Jian. High Strength Abrasion Resistant Steel Plates for Construction Machine 1    Scope  This standard specifies designation, size, appearance, weight and allowable deviation, technical requirements, test method, test rules, packaging, mark and quality certificate of high strength abrasion resistant steel plates for construction machine. This standard is applicable to steel plates, which the thickness is not larger than 80mm and used for abrasion resistant structural component of construction machine (mining area, construction, agriculture, etc.). The abrasion resistant steel plate this standard specifies are also applicable in other fields. 2    Normative References  The following standards contain the provisions which, through reference in this text, constitute the provisions of this standard. For dated reference, subsequent amendments (excluding corrigendum) or revisions of these publications do not apply. However, the parties who enter into agreement according to these specifications are encouraged to study whether the latest editions of these references are applicable. For undated references, the latest edition of the normative document is applicable to this standard. GB/T 222 Permissible tolerances for chemical composition of steel products GB/T 223.3 Methods for chemical analysis of iron, steel and alloy - The diantipyrylmethane phosphomolybdate gravimetric method for the determination of phosphorus content GB/T 223.9 Iron steel and alloy - Determination of aluminium content - Chrom 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 223.13 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 223.17 Methods for chemical analysis of iron steel and alloy - The diantipyrylmethane photometric method for the determination of titanium 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 223.54 Methods for chemical analysis of iron, steel and alloy - The flame atomic absorption spectrophotometric method for the determination of nickel content 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 223.59 Methods for chemical analysis of iron, steel and alloy - The reduced molybdoantimonyl phosphoric acid photometric method for the determination of phosphorus 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 223.61 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 alloyed - 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 GB/T223.69 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 223.75 Iron steel and alloy - Determination of boron content - Methanol distillation-curcumin photometric 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 223.78 Methods for chemical analysis of iron, steel and alloy - Curcumin spectrophotometric method for the determination of boron content GB/T 228 -2008 Metallic materials - Tensile testing at ambient temperature (GB/T 228- 2002, eqv ISO 6892.1998) GB/T 229 Metallic Materials - Charpy Pendulum Impact Test Method (GB/T 229-2007, ISO 148-1.2006, MOD) GB/T 231.1 Metallic materials - Brinell hardness test - Part 1. Test method (GB/T 231.1-2009, ISO 6506-1.2005, MOD) GB/T 247 General Rule of Acceptance - Package, Mark and Certification for Steel Plates (Sheets) and Strips GB/T 709 Dimension, shape, weight and tolerances for hot-rolled steel plates and sheets GB/T 2975 Mechanical Test Sampling Location and Sample Preparation for Steel and Steel Products (GB/T 2975-1998, eqv ISO 377.1997) GB/T 4336 Standard test method for spark discharge atomic emission spectrometric analysis of carbon and low-alloy steel (routine method) GB/T 17505 Steel and steel products General technical delivery requirements (GB/T 17505-1998, eqv ISO 404.1992) GB/T 20066 Steel and iron - Sampling and preparation of samples for the determination of chemical composition (GB/T 20066-2006, ISO 14284.1996, IDT) YB/T 081 Rule for rounding off of numerical values and judgment of testing values for technical standards of metallurgy 3    Order content  For placing order, the party shall provide the following information. a) Code name of this standard; b) Product name; c) Designation; d) Dimension; e) Condition of delivery; f) Weight; g) Other special requirements. 4    Designation Denotation  Steel designation shall be composed of "NM" [initial letters of the Pinyin "Naimo" (abrasion proof in English)], and the Brinell hardness number shall be specified. For example. NM500 5    Dimension, Shape, Weight and Tolerance  5.1 The dimension, shape, weight and tolerance of steel plate shall meet the requirements of GB/T 709. 5.2 The steel plates of other dimension, shape or tolerance may be supplied based on the mutual agreement of the supply and demand parties. 6    Technical Requirements  6.1 Designation and chemical composition 6.1.1 The designation and chemical composition (heat analysis) of steel shall meet the requirements of Table 1. Annex A  (Informative) Reference value of carbon equivalent The reference value of steel plate carbon equivalent is detailed in Table A.1. Table A.1 Designation Thickness /mm CEV, not larger than NM300 ≤ 80 0.45 NM360 ≤ 80 0.48 NM400 ≤ 50 0.57 >50~80 0.65 NM450 ≤ 50 0.59 >50~80 0.72 NM500 ≤ 50 0.64 >50~80 0.74 NM550 ≤ 50 0.72 NM600 ≤ 50 0.84 ......

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