SAE AMS2350 Standards and Test Methods (Cancelled Oct 1989)
时间:2024-04-29 02:18:40 来源: 标准资料网 作者：标准资料网 阅读：9902
Product Code:SAE AMS2350
Title:Standards and Test Methods (Cancelled Oct 1989)
Issuing Committee:Ams B Finishes Processes And Fluids Committee
Scope:To establish the issue of specifications, standards, and recommended practices published by standardizing agencies other than divisions and committees of the Aerospace Council of SAE approved for use in determining conformance to requirements of Aerospace Material Specifications (AMS) and other specifications in which this specification is referenced.
Product Code:SAE J431
Title:Automotive Gray Iron Castings
Issuing Committee:Automotive Iron And Steel Castings Committee
Scope: This SAE Standard covers the hardness, tensile strength, and microstructure and special requirements of gray iron sand molded castings used in the automotive and allied industries. Specific requirements are provided for hardness of castings. Test bar tensile strength/Brinell hardness (t/h) ratio requirements are provided to establish a consistent tensile strength-hardness relationship for each grade to facilitate prediction and control of tensile strength in castings. Provision is made for specification of special additional requirements of gray iron automotive castings where needed for particular applications and service conditions.Note: This document was revised in 1993 to provide grade specific t/h control. In 1999 the document was revised to make SI metric units primary. To better align the grading system with long established production methods and grades produced, the previous system of grading by fixed combinations of tensile strength and hardness was changed in 1999 to a system of grading by variable combinations of test bar t/h ratio and casting hardness grades. The number of hardness grades was increased relative to the number of previously available ranges to facilitate centering of casting mean hardness in the specification range so that dependence of cost optimization on controlling near the low or high sides of specification ranges is minimized.
Rationale: This SAE Standard covers the hardness, tensile strength, and microstructure and special requirements of gray iron sand molded castings used in the automotive and allied industries. Specific requirements are provided for hardness of castings. Test bar tensile strength/Brinell hardness (t/h) ratio requirements are provided to establish a consistent tensile strength-hardness relationship for each grade to facilitate prediction and control of tensile strength in castings. Provision is made for specification of special additional requirements of gray iron automotive castings where needed for particular applications and service conditions.Note: This document was revised in 1993 to provide grade specific t/h control. In 1999 the document was revised to make SI metric units primary. To better align the grading system with long established production methods and grades produced, the previous system of grading by fixed combinations of tensile strength and hardness was changed in 1999 to a system of grading by variable combinations of test bar t/h ratio and casting hardness grades. The number of hardness grades was increased relative to the number of previously available ranges to facilitate centering of casting mean hardness in the specification range so that dependence of cost optimization on controlling near the low or high sides of specification ranges is minimized.【英文标准名称】:AmericanNationalStandard/CSAStandardforGasFiredPoolHeaters
【原文标准名称】:燃气泳池加热器用美国国家标准/CSA标准
【标准号】:ANSIZ21.56b-2008
【标准状态】:作废
【国别】:美国
【发布日期】:2008-05-01
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:CSA
【标准类型】:()
【标准水平】:()
【中文主题词】:燃煤气的;加热器;泳池;游泳池
【英文主题词】:Gas-fired;Heaters;Pool;Swimmingpools
【摘要】:Detailstestandexaminationcriteriaforpoolheatersforusewithnatural,manufacturedandmixedgases,liquefiedpetroleumgases,andLPgas-airmixtures.Poolheatersaredesignedtoheatnon-potablewaterstoredatatmosphericpressure,suchaswaterinswimmingpools,spas,hottubsandsimilarapplications.
【中国标准分类号】:Q83
【国际标准分类号】:91_140_65;97_220_10
【页数】:
【正文语种】:英语