Cookies
Potrebujeme váš súhlas na využitie jednotlivých dát, aby sa vám okrem iného mohli ukazovať informácie týkajúce sa vašich záujmov. Súhlas udelíte kliknutím na tlačidlo „OK“.
ASTM B849-94
Standard Specification for Pre-Treatments of Iron or Steel for Reducing Risk of Hydrogen Embrittlement
Automaticky preložený názov:
Štandardné špecifikácie pre pre- ošetrenie zo železa alebo ocele pre zníženie rizika vodíkovej krehkosti
NORMA vydaná dňa 1.1.1994
Informácie o norme:
Označenie normy: ASTM B849-94
Poznámka: NEPLATNÁ
Dátum vydania normy: 1.1.1994
Kód tovaru: NS-8396
Počet strán: 2
Približná hmotnosť: 6 g (0.01 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Anotácia textu normy ASTM B849-94 :
Keywords:
Autocatalytic plating, Chemical conversion coatings, Coatings-conversion, Cracking-stress-cracking, Degradation-metals/alloys, Delayed brittle failure, Electroplating, Heat treatment, Hydrogen embrittlement, Hydrogen stress cracking, Iron, Porcelain enameling, Pre-treatments of iron/steel, Steel, Stress relief, pre-coating treatment-iron/steel, for reducing risk of hydrogen, embrittlement, spec, ICS Number Code 77.080.01 (Ferrous metals in general)
Doplňujúce informácie
| 1. Scope | ||||||||||||||||
|
1.1 This specification covers procedures for reducing the susceptibility or degree of susceptibility to hydrogen embrittlement or degradation that may arise in electroplating, autocatalytic plating, porcelain enameling, chemical conversion coating, and phosphating and the associated pretreatment processes. This specification is applicable to those steels whose properties are not affected adversely by baking at 190 to 230°C or higher (see 6.1.1). 1.2 The heat treatment procedures established herein have been shown to be effective for reducing the susceptibility of steel parts of tensile strength 1000 MPa or greater that have been machined, ground, cold-formed, or cold-straightened subsequent to heat treatment. This heat-treatment procedure is used prior to any operation capable of hydrogen charging the parts, such as the cleaning procedures prior to electroplating, autocatalytic plating, porcelain enameling, and other chemical coating operations. Note 1-1 MPa = 145.1 psi.1.3 This specification has been coordinated with ISO/DIS 9587 and is technically equivalent. 1.4 The values stated in SI units are to be regarded as the standard. |
||||||||||||||||
| 2. Referenced Documents | ||||||||||||||||
|
Odporúčame:
Aktualizácia technických noriem
Chcete mať istotu, že používate len platné technické normy?
Ponúkame Vám riešenie, ktoré Vám zaistí mesačný prehľad o aktuálnosti noriem, ktoré používate.
Chcete vedieť viac informácií ? Pozrite sa na túto stránku.
