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GB/T 24186-2009 English PDF (GBT24186-2009)

GB/T 24186-2009 English PDF (GBT24186-2009)

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GB/T 24186-2009: High strength abrasion resistant steel plates for construction machine

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.
GB/T 24186-2009
GB
NATIONAL STANDARD OF THE
PEOPLE 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 and 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 and Iron Co., Ltd., Hunan Hualing Lianyuan Steel and 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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