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GB/T 9971-2017: Pure iron raw material
Status: Valid GB/T 9971: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 9971-2017 | English | 199 |
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3 days [Need to translate]
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Pure iron raw material
| Valid |
GB/T 9971-2017
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| GB/T 9971-2004 | English | 559 |
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3 days [Need to translate]
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Pure iron for raw material
| Obsolete |
GB/T 9971-2004
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| GB/T 9971-1988 | English | 239 |
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2 days [Need to translate]
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Pure iron for raw material
| Obsolete |
GB/T 9971-1988
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PDF similar to GB/T 9971-2017
Standard similar to GB/T 9971-2017 GB/T 34215 GB/T 32288 GB/T 2521.2 Basic data | Standard ID | GB/T 9971-2017 (GB/T9971-2017) | | Description (Translated English) | Pure iron raw material | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | H53 | | Classification of International Standard | 77.080.10 | | Word Count Estimation | 10,158 | | Date of Issue | 2017-12-29 | | Date of Implementation | 2018-09-01 | | Older Standard (superseded by this standard) | GB/T 9971-2004 | | Regulation (derived from) | National Standards Bulletin 2017 No. 32 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | GB/T 9971-2017: Pure iron raw material---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Pure iron raw material
ICS 77.080.10
H53
National Standards of People's Republic of China
Replacing GB/T 9971-2004
Raw iron
2017-12-29 Posted
2018-09-01 implementation
General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
China National Standardization Administration released
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard replaces GB/T 9971-2004 "raw iron."
This standard compared with GB/T 9971-2004, the main technical changes are as follows.
--- Remove the initial billet varieties and related requirements, the original standard of flat bar and flat steel bar;
--- New product brand YT4. Adjust YT1, YT2, YT3 chemical composition of manganese, sulfur, copper and the upper limit of control element YT1 aluminum
Control cap, an increase of various grades of oxygen, titanium content requirements;
--- Increase product smelting method requirements;
--- Canceled the original standard appendix A and Appendix B, carbon and sulfur detection methods directly referenced to the relevant national standards;
--- Refined the surface quality requirements.
This standard is proposed by China Iron and Steel Association.
This standard by the National Standardization Technical Committee Steel (SAC/TC183) centralized.
The main drafting units of this standard. Shanxi Taigang Stainless Steel Co., Ltd., Anshan Iron and Steel Co., Ltd., Metallurgical Industry Information Standards
Institute.
The main drafters of this standard. Chen Zemin, Li Huifeng, Zhang Jiansheng, Liao Xiangwei, Yan Chengming, Zhang Yanrui, Liu Aikun, Li Yanru, Miao Xiao.
This standard replaces the standards previously issued as.
--- GB/T 9971-1988, GB/T 9971-2004.
Raw iron
1 Scope
This standard specifies the symbols and varieties of raw materials, classification, size, shape and weight, technical requirements, test methods, inspection rules, packages
Equipment, signs and quality certificates.
This standard applies to electric alloys, precision alloys (including soft magnetic materials, hard magnetic materials, flexible alloys, expanded alloys, etc.), low carbon stainless steel,
Ultra-low carbon stainless steel and powder metallurgy and other raw materials for the use of pure iron billets, hot-rolled steel rods and hot-rolled rod.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version applies to this article
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
GB/T 223.5 Steel - Determination of acid-soluble silicon and total silicon - Reduced molybdosilicate spectrophotometry
GB/T 223.9 steel and alloy aluminum content - Determination of chromazurol S spectrophotometry
GB/T 223.12 Methods for chemical analysis of iron, steel and alloy - The sodium carbonate separation - diphenylcarbazide photometric method for the determination of chromium content
GB/T 223.19 Methods for chemical analysis of iron, steel and alloy The neocuproine-chloroform extraction spectrophotometric method for the determination of copper content
GB/T 223.23 steel and alloy nickel content - dimethylglyoxime spectrophotometric method
Steel and alloy - Determination of molybdenum content - Thiocyanate spectrophotometric method
GB/T 223.29 steel and alloy - Determination of lead content carrier precipitation - xylenol orange spectrophotometry
Steel and alloy - Determination of arsenic content - Distillation separation - Molybdenum blue spectrophotometric method
GB/T 223.37 Methods for chemical analysis of iron, steel and alloy - The distillation separation - indophenol blue photometric method for the determination of nitrogen content
GB/T 223.47 Methods for chemical analysis of iron, steel and alloy - The molybdenum blue photometric method for the determination of the amount of antimony
GB/T 223.48 Methods for chemical analysis of iron, steel and alloy - The photometric method for the determination of bismuth content
GB/T 223.50 Methods for chemical analysis of iron, steel and alloy The determination of phenylfluorone-cetyltrimethylammonium bromide by spectrophotometry
Tin content
GB/T 223.51 Methods for chemical analysis of iron, steel and alloy The 5-Br-PADAP photometric method for the determination of zinc content
GB/T 223.53 Methods for chemical analysis of iron, steel and alloy - The flame atomic absorption spectrophotometric method for the determination of copper content
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 223.59 steel and alloy - Determination of phosphorus content bismuth phosphomolybdate blue spectrophotometry and antimony phosphomolybdate blue spectrophotometry
GB/T 223.62 Methods for chemical analysis of iron, steel and alloy - The butyl acetate extraction spectrophotometric method for the determination of phosphorus content
GB/T 223.63 Methods for chemical analysis of iron, steel and alloy - The sodium periodate (potassium) photometric method for the determination of manganese content
Iron and steel - Determination of manganese content - Flame atomic absorption spectrometric method
GB/T 223.79 steel multi-element content determination by X-ray fluorescence spectrometry (conventional method)
GB/T 223.80 Steel and alloy bismuth and arsenic content - Determination of hydride generation - atomic fluorescence spectrometry
GB/T 223.81 steel and alloy total aluminum and total boron content - microwave digestion - inductively coupled plasma mass spectrometry
GB/T 223.82 steel hydrogen content Determination of inert gas pulse melting heat conduction method
GB/T 223.84 steel and alloy - Determination of titanium content - Diampyridin methane spectrophotometry
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