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Product Code:SAE J2833
Title:Welded and Cold-Drawn, High Strength (690 MPa Tensile Strength) Low Alloy Steel Hydraulic Tubing, Stress Relieved Annealed for Bending and Flaring
Issuing Committee:Metallic Tubing Committee
Scope:This specification covers sub-critically annealed electric resistance welded and cold-drawn singlewall high strength low alloy steel tubing intended for use in hydraulic pressure lines and in other applications requiring tubing of a quality suitable for bending, flaring, cold forming, welding and brazing.The grade of material produced to this specification is of micro-alloy content and is considerably stronger and intended to service higher pressure applications using thinner walls than like sizes of the grades of material specified in SAE J525, SAE J2467 and SAE J2614. Due to the alloy content of the material, the forming characteristics of the finished tube are equal to or better, when compared to SAE J525, SAE J2467 and SAE J2614. Nominal reference working pressures for this tubing are listed in SAE J1065.Caution: When brazing or welding is used as a tube end joining method, the structural integrity of the tube material can potentially be compromised due to the degradation of the areas affected by the thermal effect applied to the tubing; therefore, the SAE J1065 nominal reference working pressures may not be applicable.Brazed and/or welded tube assembly configurations made to specific geometry and components bill of material in association with this material, may require qualification testing in accordance with SAE J2658 Metallic Tube Conductor Assemblies for Fluid Power and General Use?Test Methods for Hydraulic Fluid Power Metallic Tube Assemblies. Cold forming the tube end configurations avoids this systemic testing by not compromising the tube material structural integrity.

标准名称：	接入网安全防护要求
英文名称：	Security Protection Requirements for Access Network
中标分类：	通信、广播 >> 通信网 >> 通信网络综合
ICS分类：	电信、音频和视频技术 >> 电信综合
发布部门：	信息产业部
发布日期：	2008-01-14
实施日期：	2008-01-14
首发日期：
作废日期：
主管部门：	中国通信标准化协会
提出单位：	中国通信标准化协会
归口单位：	中国通信标准化协会
起草单位：	信息产业部电信研究院、中国电信集团公司、中国移动通信集团公司、中国网络通信集团公司、中国联合通信有限公司
起草人：	刘谦、唐建军、曹一生、钟星、贾川
出版社：	人民邮电出版社
出版日期：	2008-01-14
页数：	12页

本标准规定了接入网在安全等级保护、安全风险评估、灾难备份及恢复等方面的安全防护要求。本标准适用于公用电信接入网。

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