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GB/T 24186-2009 PDF in English


GB/T 24186-2009 (GB/T24186-2009, GBT 24186-2009, GBT24186-2009)
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GB/T 24186-2009: PDF in English (GBT 24186-2009)

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
......
 
Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.