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GB/T 42675-2023: Welded antibacterial stainless steel pipes and fittings
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Welded antibacterial stainless steel pipes and fittings
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GB/T 42675-2023
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Basic data | Standard ID | GB/T 42675-2023 (GB/T42675-2023) | | Description (Translated English) | Welded antibacterial stainless steel pipes and fittings | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | H48 | | Classification of International Standard | 77.140.75 | | Word Count Estimation | 38,372 | | Date of Issue | 2023-08-06 | | Date of Implementation | 2024-03-01 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 42675-2023: Welded antibacterial stainless steel pipes and fittings---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.
ICS 77.140.75
CCSH48
National Standards of People's Republic of China
Antibacterial stainless steel welded steel pipes and fittings
Published on 2023-08-06
2024-03-01 Implementation
State Administration for Market Regulation
Released by the National Standardization Administration Committee
Table of contents
PrefaceⅠ
Introduction II
1 Scope 1
2 Normative reference documents 1
3 Terms and Definitions 2
4 Classification and code 2
5 Order contents 4
6 Dimensions, appearance, weight and allowable deviations 4
7 Technical requirements 5
8 Test methods 10
9 Inspection Rules 12
10 Marking, packaging, storage and quality certificates13
Appendix A (Normative) Structural types and dimensions of pipe fittings14
Appendix B (Normative) Sealing rings for pipe fittings and joints 24
Appendix C (normative) Antibacterial performance testing method of antibacterial stainless steel 26
Appendix D (normative) Test method for connection performance of pipe fittings 29
Foreword
This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1.Structure and Drafting Rules of Standardization Documents"
Drafting.
Please note that some content in this document may be subject to patents. The publisher of this document assumes no responsibility for identifying patents.
This document is proposed and coordinated by the China Iron and Steel Industry Association.
This document was drafted by. Shandong Jinlit Pipe Industry Co., Ltd., Zhejiang Jinzhou Pipeline Technology Co., Ltd., Shandong Juncheng Green Energy Materials
Technology Co., Ltd., Zhejiang Dewei Stainless Steel Pipe Industry Co., Ltd., Jiangsu Baodi Pipe Industry Co., Ltd., Gangyi Holding Group Co., Ltd., Fu
Jiansheng Datong Energy Saving Technology Co., Ltd., Shandong University of Technology, Institute of Metal Research, Chinese Academy of Sciences, Zhejiang Jiuli Special Materials Technology Co., Ltd.,
Guangdong Weilian Great Wall Metal Co., Ltd., Zhejiang Benigo Intelligent Pipe Network Co., Ltd., Wuhan Jinniu Stainless Steel Pipe Technology Co., Ltd.,
Xinxing Cast Pipe Co., Ltd., Gansu Jiugang Group Hongxing Steel Co., Ltd. Stainless Steel Branch, Anhui Jinwei Pipe Industry Co., Ltd.,
Cangzhou Sanqing Industry and Trade Co., Ltd., Zhejiang Zhengkang Industrial Co., Ltd., Fujian Xuyou Stainless Steel Co., Ltd., Metallurgical Industry Information Standard
Institute.
The main drafters of this document. Li Jingpeng, Liang Dong, Sun Jinfeng, Guo Jian, Zhang Hua, Hu Kailei, Yu Dongxu, Wu Zhengyi, Zhou Zhanghui, Yang Chunguang,
Su Cheng, Chen Peihua, Yu Zhangfa, Dong Bobo, Li Tieliang, Cheng Yunxia, Wei Shengli, Li Shenghai, Wang Junhao, He Xiaomei, Liu Hongyu, Li Xudong,
Wang Fengmei, Yang Saiqing, Yang Weifang, Zhao Xiaojie, Ma Tongjie, Zhu Guangming, Xi Tong, Xu Amin, Wu Guoping, Zhang Hongbin, Li Qi.
Introduction
Antibacterial stainless steel is a new material with integrated structure/function. Antibacterial elements are added to traditional stainless steel materials and made through special heat treatment.
It has long-lasting antibacterial properties against common bacteria such as Escherichia coli and Staphylococcus aureus, and is safe, non-toxic and does not produce drug resistance. antibacterial stainless steel
The product continuously releases active ions to achieve efficient antibacterial effects. Its antibacterial principles are divided into contact antibacterial and ion antibacterial.
The principle of contact sterilization is that when bacteria come into direct contact with the antibacterial stainless steel surface, due to the increase in surface active oxygen pressure, the normal bacteria are destroyed.
The living environment of the bacteria inhibits the reproduction of bacteria. The principle of ion antibacterial is that the antibacterial ions dissolved in the antibacterial stainless steel matrix destroy the surrounding
The bacterial cell wall leads to the loss of cell fluid and protein, and the bacteria cannot provide for their own survival and die.
Antibacterial stainless steel welded steel pipes are made from antibacterial stainless steel plates and steel strips as raw materials, and are made through a series of processing steps such as pipe making and heat treatment.
Steel Pipe. Antibacterial stainless steel pipe fittings are made of thin-walled antibacterial stainless steel welded steel pipes as raw materials, and undergo a series of processing steps such as bending, forming, and heat treatment.
Made of thin-walled compression or grooved pipe fittings. Antibacterial stainless steel welded steel pipes and fittings are widely used in pipelines in water supply, gas supply and other fields
system.
Antibacterial stainless steel welded steel pipes and fittings
1 Scope
This document stipulates the classification and code number, ordering content, size, shape, weight and allowable deviation of antibacterial stainless steel welded steel pipes and fittings,
Technical requirements, test methods, inspection rules, marking, packaging, storage and quality certificates.
This document is applicable to applications where the nominal pressure is not greater than 1.6MPa and the nominal diameter is not greater than DN300, transporting medical gases, domestic hot and cold water, and biomass.
Antibacterial stainless steel welded steel pipes (hereinafter referred to as "steel pipes") and clamped and grooved pipe fittings (hereinafter referred to as "steel pipes") that utilize water purification and medical vacuum systems
"Fittings").
2 Normative reference documents
The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, the dated quotations
For undated referenced documents, only the version corresponding to that date applies to this document; for undated referenced documents, the latest version (including all amendments) applies to
this document.
GB/T 191 Packaging, storage and transportation pictorial mark
GB/T 222 Allowable deviations in chemical composition of finished steel products
GB/T 223.11 Determination of chromium content in steel and alloys by visual titration or potentiometric titration method
GB/T 223.18 Methods for chemical analysis of steel and alloys. Separation of sodium thiosulfate-Determination of copper content by iodometric method
GB/T 223.25 Chemical analysis methods for steel and alloys - Determination of nickel content by diacetyl oxime gravimetric method
GB/T 223.28 Methods for chemical analysis of steel and alloys - Determination of molybdenum content by α-benzoxime gravimetric method
GB/T 223.59 Determination of phosphorus content in steel and alloys bismuth phosphorus molybdenum blue spectrophotometry and antimony phosphorus molybdenum blue spectrophotometry
GB/T 223.60 Chemical analysis methods for steel and alloys Determination of silicon content by perchloric acid dehydration gravimetric method
GB/T 223.63 Determination of manganese content in steel and alloys - Sodium (potassium) periodate spectrophotometry
GB/T 223.85 Determination of sulfur content in steel and alloys - Infrared absorption method after combustion in induction furnace
GB/T 223.86 Determination of total carbon content of steel and alloys - Infrared absorption method after combustion in induction furnace
GB/T 228.1 Tensile testing of metallic materials Part 1.Room temperature test methods
GB/T 241 Hydraulic test method for metal pipes
GB/T 242 Metal pipe expansion test method
GB/T 245 Test method for hemming of metal material tubes
GB/T 246 Flattening test method for metal tubes
GB/T 2102 Acceptance, packaging, marking and quality certificate of steel pipes
GB/T 2651 Tensile test method for welded joints
GB/T 2653 Bending test method for welded joints
GB/T 2828.1-2012 Enumeration sampling inspection procedures Part 1.Batch-by-batch inspection sampling retrieved by acceptance quality limit (AQL)
plan
GB/T 2975 Sampling location and sample preparation for mechanical property testing of steel and steel products
GB/T 3098.6 Mechanical properties of fasteners Stainless steel bolts, screws and studs
GB/T 3098.10 Mechanical properties of fasteners Bolts, screws, studs and nuts made of non-ferrous metals
GB/T 3098.15 Mechanical properties of fasteners stainless steel nuts
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