SAE AS7949 Bearings, Ball, Airframe, Antifriction, General Standard For
作者:标准资料网 时间:2024-04-24 10:51:48 浏览:9746
来源:标准资料网
Product Code:SAE AS7949
Title:Bearings, Ball, Airframe, Antifriction, General Standard For
Issuing Committee:Acbg Rolling Element Bearing Committee
Scope:This standard covers ball bearings in the -65 to +350 掳F temperature range as specified on the applicable drawing standards.
【英文标准名称】:DataEncryptionStandardCipherBlockChainingPacketEncryption
【原文标准名称】:数据加密标准密码分组链接分组加密
【标准号】:ANSI/SCTE52-2003
【标准状态】:作废
【国别】:美国
【发布日期】:2003
【实施或试行日期】:
【发布单位】:美国国家标准学会(ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Coding;Communicationtechnology;Cryptographic;Data;Datablocks;Transmissiontechnique
【摘要】:DataEncryptionStandard(DES)CipherBlockChaining(CBC)specifiestheencryptionanddecryptionofpacketdataindigitalaudio,videoanddatasignals.Itprovidesguidelinesforimplementingandusingthemodesofoperation.
【中国标准分类号】:L80
【国际标准分类号】:35_040
【页数】:
【正文语种】:英语
Product Code:SAE AS7475
Title:Bolts, Cobalt-Chromium-Nickel Alloy Uns R30159, Tensile Strength 260 Ksi, Procurement Specification
Issuing Committee:E-25 General Standards For Aerospace And Propulsion Systems
Scope:This procurement specification covers bolts made from a corrosion and heat resistant, work-strengthened, cobalt-chromium-nickel alloy of the type identified under the Unified Numbering System as UNS R30159. The following specification designations and their properties are covered: AS7475 260 ksi minimum ultimate tensile strength at room temperature; 205 ksi minimum ultimate tensile strength at 1100 degrees F; 140 ksi stress-rupture strength at 1100 degrees F; 135 ksi tension to 13.5 ksi tension fatigue at room temperature; AS7475-1 260 ksi minimum ultimate tensile strength at room temperature; 132 ksi minimum ultimate shear strength at room temperature.
