Product Code:SAE AMS4995
Title:Billets and Preforms, 5Al - 2Sn - 2Zr - 4Cr - 4Mo - 0.10O, Premium Quality, Powder-Metallurgy Product
Issuing Committee:Ams G Titanium And Refractory Metals Committee
Scope:This specification covers a premium-quality, titanium alloy powder-metallurgy product in the form of billets and preforms for forgings.
基本信息
| 标准名称： | 3、2C、3C号内挂拉杆 |
| 中标分类： |
航空、航天 >>
航空器及其附件 >>
生命保障系统与设备 |
| 替代情况： | HB 7-13-72 |
| 发布日期： | |
| 实施日期： | 1995-06-01 |
| 首发日期： | |
| 作废日期： | |
| 出版日期： | |
| 页数： | 4页 |
适用范围
没有内容
前言
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目录
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引用标准
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所属分类： 航空 航天 航空器及其附件 生命保障系统与设备
【英文标准名称】:StandardTestMethodforStiffnessPropertiesofPlasticsasaFunctionofTemperaturebyMeansofaTorsionTest
【原文标准名称】:用扭转试验法测定温度对塑料强度变化的标准试验方法
【标准号】:ASTMD1043-2002
【标准状态】:现行
【国别】:
【发布日期】:2002
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:D20.10
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:塑料;试验;特性;硬挺度
【英文主题词】:Clash-Berg;modulusofrigidity;plast;shear;torsion;NumberCode83.080.01(Plastingeneral)
【摘要】:Thepropertymeasuredbythistestistheapparentmodulusofrigidity,G,sometimescalledtheapparentshearmodulusofelasticity.Itisimportanttonotethatthispropertyisnotthesameasthemodulusofelasticity,E,measuredintension,flexure,orcompression.TherelationshipbetweenthesepropertiesisshowninAnnexA1.Themeasuredmodulusofrigidityistermedx201C;apparentx201D;sinceitisthevalueobtainedbymeasuringtheangulardeflectionoccurringwhenthespecimenissubjectedtoanappliedtorque.Sincethespecimenmaybedeflectedbeyonditselasticlimit,thecalculatedvaluemaynotrepresentthetruemodulusofrigiditywithintheelasticlimitofthematerial.Inaddition,thevalueobtainedbythistestmethodwillalsobeaffectedbythecreepcharacteristicsofthematerial,sincetheloadapplicationtimeisarbitrarilyfixed.Formanymaterials,theremaybeaspecificationthatrequirestheuseofthistestmethod,butwithsomeproceduralmodificationsthattakeprecedencewhenadheringtothespecification.Therefore,itisadvisabletorefertothatmaterialspecificationbeforeusingthistestmethod.Table1inClassificationD4000liststhecurrentASTMmaterialsstandards.Thistestmethodisusefulfordeterminingtherelativechangesinstiffnessoverawiderangeoftemperatures.1.1Thistestmethodcoversthedeterminationofthestiffnesscharacteristicsofplasticsoverawidetemperaturerangebydirectmeasurementoftheapparentmodulusofrigidity.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Note18212;ThistestmethodisnotequivalenttoISO458/1:1985orISO458/2:1985andresultscannotbedirectlycomparedbetweenthetwomethods.
【中国标准分类号】:G31
【国际标准分类号】:83_080_01
【页数】:12P.;A4
【正文语种】: