Essais mécaniques
Veille normative septembre 2019

ISO 20064,  Matériaux métalliques – Acier – Méthode d’essai pour déterminer la ténacité à la rupture fragile, Kca

Metallic materials – Steel – Method of test for the determination of brittle crack arrest toughness, K_ca

This document specifies a test method for the determination of brittle crack arrest toughness. It is applicable to ferritic steel base metals exhibiting ductile to brittle transition behaviour. Applicable materials are rolled steel plates. It is intended for materials with a tensile strength of 950 MPa or less and a test piece thickness of 200 mm or less. The range of arrest temperatures is between –196 °C and +100 °C. This document can be applied to flat rolled steel plates but not to flattened steel pipes because the flattening can cause changes in arrest toughness.

Publié par ISO le 01/07/2019

ASTM A370-19,  Méthodes d’essai et définitions normalisées pour les essais mécaniques appliqués aux produits en acier (Revision 2019)

Remplace ASTM A370 ( de décembre 2018).

Standard test methods and definitions for mechanical testing of steel products

These test methods cover procedures and definitions for the mechanical testing of steels, stainless steels, and related alloys. The various mechanical tests herein described are used to determine properties required in the product specifications. Variations in testing methods are to be avoided, and standard methods of testing are to be followed to obtain reproducible and comparable results. In those cases in which the testing requirements for certain products are unique or at variance with these general procedures, the product specification testing requirements shall control. Annexes covering details peculiar to certain products are appended to these test methods.

Publié par ASTM le 01/07/2019

ASTM E399,  Méthode d’essai normalisée pour la détermination du facteur d’intensité de contrainte critique KIc des matériaux métalliques (Revision 2019)

Remplace ASTM E399 ( de novembre 2017).

Standard test method for linear-elastic plane-strain fracture toughness K_Ic of metallic materials

This test method covers the determination of fracture toughness (K_Ic ) of metallic materials under predominantly...