BS EN ISO 3506-1-2009 耐腐蚀不锈钢紧固件的机械特性.螺栓、螺钉和螺柱

标准号：BS EN ISO 3506-1-2009
中文标准名称：耐腐蚀不锈钢紧固件的机械特性.螺栓、螺钉和螺柱
英文标准名称：Mechanical properties of corrosion-resistant stainless steel fasteners - Bolts, screws and studs
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 68-1;ISO 261;ISO 262;ISO 898-1;ISO 3651-1;ISO 3651-2;ISO 6506-1;ISO 6507-1;ISO 6508-1;ISO 6892-1;ISO 16048;ISO 16426
适用范围：This part of ISO 3506 specifies the mechanical properties of bolts, screws and studs made of austenitic, martensitic and ferritic steel grades of corrosion-resistant stainless steels, when tested over an ambient temperature range of 10 °C to 35 °C. Properties vary at higher or lower temperatures.This part of ISO 3506 applies to bolts, screws and studs - with nominal thread diameter d u 39 mm,- of triangular ISO metric threads with diameters and pitches in accordance with ISO 68-1, ISO 261 andISO 262, and- of any shape.It does not apply to screws with special properties, such as weldability.NOTE The designation system of this part of ISO 3506 can be used for sizes outside the limits given in this clause (e.g. d > 39 mm), provided that all applicable mechanical and physical requirements of the property classes are met.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 E. Regarding definitions of corrosion and corrosion resistance, see ISO 8044.The aim of this part of ISO 3506 is the classification of corrosion-resistant stainless steel fasteners1) into property classes. Some materials can be used at temperatures down to − 200 °C, while some can be used at temperatures up to + 800 °C in air. Information on the influence of temperature on mechanical properties is found in Annex F.Corrosion and oxidation performances and mechanical properties for use at elevated or sub-zerotemperatures can be agreed on between the user and the manufacturer in each particular case. Annex Gshows 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 can be evident (see Annex H).