ISO 9328-3:2018 pdf free

ISO 9328-3:2018 pdf free.Steel flat products for pressure purposes一Technical delivery conditions
Unless otherwise agreed at the time of enquiry and order (see 6.2.3), the products covered by this document shall be supplied in the normalized condition.For steels with minimum yield strength 2 460 MPa, delayed cooling or additional tempering is permitted. If such a treatment is performed, this shall be noted in the inspection document.
At the discretion of the manufacturer, normalizing may be replaced with normalizing rolling for the steel grades in Annex A (see ISO 9328-1:2018, 3.1). In this case, additional tests in the simulated normalized condition with an agreed frequency of testing may be agreed upon at the time of enquiry and order, to verify that the obtained properties also comply with the standard requirements (see 5.2, Option 2).
If so agreed at the time of enquiry and order, products covered by this document may be delivered in the untreated condition. The products delivered in untreated conditions shall be appropriately marked (+AR) to denote that heat treatment has not been performed.
For products delivered untreated, the specified tests shall be carried out by the manufacture on test pieces in the simulated normalized condition (but see 6.2.1).
NOTE Tests in a simulated heat-treated condition are carried out to verify the suitability of the final product in the usual delivery condition. However, they do not discharge the processor from the obligation of providing proof of the specified properties in the finished product when adequately heat treated. Where appropriate, tests on simulated post-weld heat-treated samples may be agreed upon at the time of enquiry and order to check whether, after such a treatment, the properties specified in this document can still be regarded as valid (see 5.2, Option 7).
Since carbon and low-alloy steels may be susceptible to cracking when exposed to corrosive H2S-containing environments, usually referred to as ‘ ‘sour service”, a test to evaluate the resistance to hydrogen-induced cracking in accordance with Annex D or another test method may be agreed at the time of enquiry and order.ISO 9328-3 pdf free.