GB/T 33975-2017 PDF English
Search result: GB/T 33975-2017
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Name of Chinese Standard | Status |
| GB/T 33975-2017 | English | 150 |
Add to Cart
|
0-9 seconds. Auto-delivery.
|
Hot-rolled spring steel wire rod for high-speed railway fastener
| Valid |
PDF Preview: GB/T 33975-2017
GB/T 33975-2017: PDF in English (GBT 33975-2017) GB/T 33975-2017
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 77.140.60
H 44
Hot-rolled spring steel wire rod
for high-speed railway fastener
ISSUED ON. JULY 12, 2017
IMPLEMENTED ON. APRIL 1, 2018
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.
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Normative references ... 4
3 Ordering content ... 6
4 Dimension, shape, weight and tolerances ... 6
5 Technical requirements ... 6
6 Test methods ... 9
7 Inspection rules ... 9
8 Packaging, marking and quality certification ... 10
Foreword
This 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 National Technical Committee 183 on
Steels of Standardization Administration of China (SAC/TC 183).
The drafting organizations of this Standard. Nanjing Iron and Steel Co., Ltd., Jiangsu
Shagang Group Co., Ltd., Tianjin Iron and Steel Group Co., Ltd., Jiangsu Yonggang
group Co., Ltd., China Metallurgical Information and Standardization Institute.
The main drafters of this Standard. Shen Puheng, Gao Yan, Chu Juefei, Li Xiaobo, Wu
Jinyuan, Yuan Changsheng, Liang Yunke, Xu Shucheng, Ren Cuiying, Wang Lingjun,
Liu Xuesen, Wang Dejiong.
Hot-rolled spring steel wire rod
for high-speed railway fastener
1 Scope
This Standard specifies the ordering content, dimension, shape, weight and tolerances,
technical requirements, test methods, inspection rules, packaging, marking and quality
certification of hot-rolled spring steel wire rod for high-speed railway fastener,
This Standard applies to hot-rolled spring steel wire rod for high-speed railway fastener
with a nominal diameter of 12 mm ~ 20 mm (hereinafter referred to as steel wire rod).
This standard can be used as a reference for ordinary railways and heavy-load
railways.
2 Normative references
The 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 document.
GB/T 222, Permissible tolerances for chemical composition of steel products
GB/T 223.5, Steel and iron -- Determination of acid-soluble silicon and total silicon
content -- Reduced molybdosilicate spectrophotometric 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 223.14, 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 223.19, Methods for chemical analysis of iron steel and alloy -- The
neocuproine-chloroform extraction photometric method for the determination of
GB/T 14981-2009, Dimension, shape, mass and tolerance for hot-rolled round
wire rod
GB/T 17505, Steel and steel products -- General technical delivery requirements
GB/T 20066, Steel and iron-sampling and preparation of samples for the
determination of chemical composition
YB/T 081, Rule for rounding off of numerical values and judgement of testing
values for technical standards of metallurgy
3 Ordering content
Contracts or orders based on this Standard shall include the following content.
a) a reference to this Standard;
b) product name;
c) steel designation;
d) product specification and weight;
e) dimension, shape and accuracy grade;
f) other special requirements.
4 Dimension, shape, weight and tolerances
4.1 The dimension, shape and tolerances of steel wire rod shall meet accuracy grade
C of GB/T 14981-2009. Other dimensional accuracy can also be delivered as agreed
on by the purchaser and the supplier.
4.2 The coil weight of steel wire rod shall be as specified in GB/T 14981-2009.
5 Technical requirements
5.1 Smelting method
Steels for steel wire rod shall be smelted using an electric-arc furnace or a converter
plus external refining.
5.2 Designation and chemical composition
......
Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.
|