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GB/T 35740-2017: Specification of nickel and nickel alloy castings for industrial valves
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 35740-2017 | English | 199 |
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Specification of nickel and nickel alloy castings for industrial valves
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GB/T 35740-2017
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Basic data | Standard ID | GB/T 35740-2017 (GB/T35740-2017) | | Description (Translated English) | Specification of nickel and nickel alloy castings for industrial valves | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | J16 | | Classification of International Standard | 23.060.01 | | Word Count Estimation | 10,142 | | Date of Issue | 2017-12-29 | | Date of Implementation | 2018-07-01 | | 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 35740-2017: Specification of nickel and nickel alloy castings for industrial valves---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.
Specification of nickel and nickel alloy castings for industrial valves
ICS 23.060.01
J16
National Standards of People's Republic of China
Technical conditions for nickel and nickel based alloy castings for industrial valves
Specification ofnickelandnickelaloycastingsforindustrialvalves
2017-12-29 Posted
2018-07-01 implementation
General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
China National Standardization Administration released
Directory
Preface Ⅰ
1 Scope 1
2 Normative references 1
3 Terms and definitions 1
4 technical requirements
5 test methods 5
6 logo 6
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard is proposed by the China Machinery Industry Federation.
This standard by the National Valve Standardization Technical Committee (SAC/TC188) centralized.
This standard is drafted by. Lanzhou High Pressure Valve Co., Ltd., Hefei General Machinery Research Institute, Chase Mutual Benefit Group Co., Ltd., Jiangsu
Wan Heng Casting Co., Ltd., XuanDa Industrial Group Co., Ltd.
Participated in the drafting of this standard. Anhui Yingli Machinery Co., Ltd., Shanghai Zhongzhou Special Alloy Materials Co., Ltd., Bethel
Valve Group Co., Ltd., Kairui Valve Co., Ltd., Shenjiang Valve Co., Ltd., Global Valve Group Co., Ltd., Jiangsu billion valve group have
Limited, Wenzhou Institute of Process Equipment Science.
The main drafters of this standard. Le essence, Huang Ming Asia, Zeng Ruihong, season Yan Hai, Shi Qingtai, Du Ying Liu, Feng Ming, Jinke Yu, Li Yunlong,
Zhi Zichang, Wu Guangzhong, Qian Yufeng, Ke Yihang.
Technical conditions for nickel and nickel based alloy castings for industrial valves
1 Scope
This standard specifies the terms and definitions, technical requirements, test methods and signs for nickel and nickel-base alloy castings for industrial valves (hereinafter referred to as castings).
This standard applies to industrial valves with nickel, nickel-copper, nickel-molybdenum, nickel-chromium-iron and nickel-chromium-molybdenum
(Ni-Cr-Mo) and other nickel and nickel-based alloy castings.
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 222 steel finished chemical composition tolerance
GB/T 223 (all sections) - Methods for chemical analysis of iron, steel and alloy
Tensile testing of metallic materials - Part 1. Test methods at room temperature
GB/T 4334 metals and alloys corrosion of stainless steel intergranular corrosion test methods
GB/T 5677 castings radiographic testing
GB/T 9443 Steel Castings penetration testing
GB/T 12220 industrial valve logo
JB/T 6440 valve pressed steel radiographic testing
Valve castings appearance quality requirements
NB/T 47014 Pressure Equipment Welding Procedure Evaluation
3 Terms and definitions
The following terms and definitions apply to this document.
3.1
Casting process production rate processyield
The ratio of the quality of sand mold castings to the total mass of molten metal used for casting castings (%). Casting process yield N (%) According to equation (1) Calculated.
N =
mz
mj mm mz
× 100% (1)
Where.
mz --- casting blank quality, in kilograms (kg);
mj --- pouring system quality, in kilograms (kg);
mm --- riser quality, in kilograms (kg).
4 technical requirements
4.1 smelting and casting
4.1.1 core material
Casting sand and sand core, sand should be selected without benzene sulfonic acid curing agent for modeling materials.
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