This document specifies mechanical and physical properties of flat washers, designed to be used in bolted joints in combination with bolts, screws, studs and nuts with a specified property class in accordance with ISO 898\u20111 and ISO 898\u20112.<\/p>\n
\nNOTE 1 These types of washers can also be used with other fasteners such as screws forming their own mating thread.<\/p>\n<\/blockquote>\n
Washers that conform to the requirements of this document are evaluated at an ambient temperature range of 10 \u00b0C to 35 \u00b0C. They might not retain the specified mechanical and physical properties at elevated temperatures and\/or lower temperatures.<\/p>\n
\nNOTE 2 Washers conforming to the requirements of this document are used in applications ranging from \u221250 \u00b0C to +150 \u00b0C. Users are advised to consult an experienced fastener expert for temperatures outside this range and up to a maximum temperature of +300 \u00b0C when determining appropriate choices, or for critical applications.<\/p>\n<\/blockquote>\n
This document is applicable to the following flat captive and non-captive washers made of carbon steel or alloy steel, with thickness from 0,2 mm to 12 mm:<\/p>\n
\n
- \n
plain washers (with or without knurls, ribs or chamfers);<\/p>\n<\/li>\n
- \n
square washers;<\/p>\n<\/li>\n
- \n
square hole washers;<\/p>\n<\/li>\n
- \n
shaped plates.<\/p>\n<\/li>\n<\/ul>\n
It does not specify requirements for the following properties:<\/p>\n
\n
- \n
corrosion resistance;<\/p>\n<\/li>\n
- \n
weldability.<\/p>\n<\/li>\n<\/ul>\n
PDF Catalog<\/h4>\n
\n
\n PDF Pages<\/th>\n PDF Title<\/th>\n<\/tr>\n \n 2<\/td>\n National foreword <\/td>\n<\/tr>\n \n 6<\/td>\n European foreword
Anchor 2
European foreword to amendment A1 <\/td>\n<\/tr>\n\n 8<\/td>\n Foreword <\/td>\n<\/tr>\n \n 9<\/td>\n Introduction <\/td>\n<\/tr>\n \n 11<\/td>\n 1 Scope
2 Normative references <\/td>\n<\/tr>\n\n 12<\/td>\n 3 Terms and definitions
4 Symbols
5 Designation system for property classes of washers and combination with property classes of bolts, screws, studs and nuts <\/td>\n<\/tr>\n\n 13<\/td>\n 6 Materials <\/td>\n<\/tr>\n \n 14<\/td>\n 7 Mechanical and physical properties <\/td>\n<\/tr>\n \n 15<\/td>\n 8 Test methods
8.1 Hardness test
8.1.1 General <\/td>\n<\/tr>\n\n 16<\/td>\n 8.1.2 Hardness test on the washer bearing surface <\/td>\n<\/tr>\n \n 19<\/td>\n 8.1.3 Hardness determined on a transverse radial section through the washer <\/td>\n<\/tr>\n \n 20<\/td>\n 8.2 Decarburization test
8.2.1 General
8.2.2 Microscopic method <\/td>\n<\/tr>\n\n 21<\/td>\n 8.2.3 Hardness method <\/td>\n<\/tr>\n \n 22<\/td>\n 8.3 Carburization test
8.3.1 General
8.3.2 Test procedure
8.3.3 Requirements
8.4 Retempering test
8.4.1 General
8.4.2 Test procedure
8.4.3 Requirements <\/td>\n<\/tr>\n\n 23<\/td>\n 9 Marking
9.1 General
9.2 Marking of washers
9.3 Marking of packages <\/td>\n<\/tr>\n\n 24<\/td>\n Annex A (normative) Ductility test for washers of property class 380HV <\/td>\n<\/tr>\n \n 27<\/td>\n Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Fasteners. Mechanical properties of fasteners made of carbon steel and alloy steel – Flat washers with specified property classes<\/b><\/p>\n
\n\n
\n Published By<\/td>\n Publication Date<\/td>\n Number of Pages<\/td>\n<\/tr>\n \n BSI<\/b><\/a><\/td>\n 2021<\/td>\n 28<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":375396,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[305,2641],"product_tag":[],"class_list":{"0":"post-375390","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-21-060-20","7":"product_cat-bsi","9":"first","10":"instock","11":"sold-individually","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/375390","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/375396"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=375390"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=375390"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=375390"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}