This document gives the technical delivery requirements for<\/p>\n
semi-finished products, e.g. blooms, billets, slabs (see note 1),<\/p>\n<\/li>\n
bars (see note 1),<\/p>\n<\/li>\n
wire rod,<\/p>\n<\/li>\n
hot-rolled plates (see note 2), and<\/p>\n<\/li>\n
hammer or drop forgings (see note 1)<\/p>\n<\/li>\n<\/ul>\n
manufactured from the nitriding steels listed in Table 3 and supplied in one of the heat-treatment conditions given for the different types of products in Table 1, rows 2 to 5, and in one of the surface conditions given in Table 2.<\/p>\n
The steels are generally intended for the fabrication of quenched and tempered and, subsequently, nitriding machine parts.<\/p>\n
The requirements for mechanical properties given in this document are restricted to the sizes given in Table 6.<\/p>\n
\nNOTE 1 Hammer-forged semi-finished products (blooms, billets, slabs, etc.), seamless rolled rings and hammer-forged bars are in the following covered under semi-finished products or bars and not under the term \u201chammer and drop forgings\u201d.<\/p>\n<\/blockquote>\n
\nNOTE 2 The term \u201cplate\u201d includes in the following also wide flats unless otherwise stated.<\/p>\n<\/blockquote>\n
In special cases, variations in these technical delivery requirements or additions to these requirements can form the subject of an agreement at the time of enquiry and order (see 5.2 and Annex B).<\/p>\n
In addition to this document, the general technical delivery requirements of ISO 404 are applicable.<\/p>\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 4<\/td>\n European foreword <\/td>\n<\/tr>\n \n 7<\/td>\n Foreword <\/td>\n<\/tr>\n \n 9<\/td>\n 1 Scope
2 Normative references <\/td>\n<\/tr>\n\n 10<\/td>\n 3 Terms and definitions <\/td>\n<\/tr>\n \n 11<\/td>\n 4 Classification and designation
4.1 Classification
4.2 Designation
5 Information to be supplied by the purchaser
5.1 Mandatory information
5.2 Options\/supplementary or special requirements <\/td>\n<\/tr>\n\n 12<\/td>\n 5.3 Ordering example
6 Manufacturing process
6.1 General
6.2 Deoxidization
6.3 Heat treatment and surface condition at delivery
6.3.1 Normal condition at delivery
6.3.2 Particular heat-treatment condition
6.3.3 Particular surface conditions
6.4 Traceability of the cast <\/td>\n<\/tr>\n\n 13<\/td>\n 7 Requirements
7.1 Chemical composition, hardness and mechanical properties
7.1.1 General
7.1.2 Chemical composition
7.1.3 Mechanical properties
7.2 Machinability
7.3 Cold shearability
7.4 Grain size
7.5 Non-metallic inclusions
7.5.1 Microscopic inclusions
7.5.2 Macroscopic inclusions <\/td>\n<\/tr>\n\n 14<\/td>\n 7.6 Internal soundness
7.7 Surface quality
7.8 Decarburization
7.9 Shape, dimensions and tolerances
8 Inspection
8.1 Testing procedures and types of documents <\/td>\n<\/tr>\n\n 15<\/td>\n 8.2 Frequency of testing
8.3 Specific inspection and testing
8.3.1 Verification of the hardness and mechanical properties
8.3.2 Visual and dimensional inspection
9 Test methods
9.1 Chemical analysis
9.2 Hardness and mechanical tests
9.2.1 Hardness
9.2.2 Mechanical tests <\/td>\n<\/tr>\n\n 16<\/td>\n 9.2.3 Impact test
9.3 Retests
10 Marking <\/td>\n<\/tr>\n\n 26<\/td>\n Annex A (normative) Ruling sections for mechanical properties <\/td>\n<\/tr>\n \n 30<\/td>\n Annex B (normative) Supplementary or special requirements <\/td>\n<\/tr>\n \n 32<\/td>\n Annex C (informative) Designation of steels given in this document and of comparable grades covered in various designation systems <\/td>\n<\/tr>\n \n 33<\/td>\n Annex D (informative) Dimensional standards applicable to products complying with this document <\/td>\n<\/tr>\n \n 34<\/td>\n Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Heat treatable steels, alloy steels and free-cutting steels – Nitriding steels<\/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 36<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":375925,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[1112,2641],"product_tag":[],"class_list":{"0":"post-375917","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-77-140-20","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\/375917","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\/375925"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=375917"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=375917"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=375917"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}