BS EN ISO 3506-4-2009 耐腐蚀不锈钢紧固件的机械特性.攻丝螺钉

标准号：BS EN ISO 3506-4-2009
中文标准名称：耐腐蚀不锈钢紧固件的机械特性.攻丝螺钉
英文标准名称：Mechanical properties of corrosion-resistant stainless steel fasteners - Tapping screws
标准类型：J13
发布日期：2009/12/31 12:00:00
实施日期：2009/12/31 12:00:00
中国标准分类号：J13
国际标准分类号：21.060.10
引用标准：ISO 1478-1999;ISO 3651-1-1998;ISO 3651-2-1998;ISO 6507-1-1997;ISO 16048-2003
适用范围：This part of ISO 3506 specifies the mechanical properties of tapping screws made from austenitic, martensitic and ferritic grades of corrosion-resistant stainless steels when tested at an ambient temperature range of 15 °C to 25 °C. Properties vary between higher and lower temperatures.It applies to tapping screws with threads from ST2,2 up to and including ST8 in accordance with ISO 1478.It does not apply to screws with special properties such as weldability.This part of ISO 3506 does not define corrosion or oxidation resistance in particular environments, however some information on materials for particular environments is given in Annex D. Regarding definitions of corrosion and corrosion resistance see ISO 8044.The aim of this part of ISO 3506 is a classification into property classes of corrosion-resistant stainless-steel fasteners.Corrosion and oxidation performances and mechanical properties for use at elevated or sub-zerotemperatures should be agreed between user and manufacturer in each particular case. Annex C shows how the risk of intergranular corrosion at elevated temperatures depends on the carbon content.All austenitic stainless-steel fasteners are normally non-magnetic in the annealed condition; after cold working, some magnetic properties may be evident (see Annex E).