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ASTM B874-96(2023)
Standard Specification for Chromium Diffusion Coating Applied by Pack Cementation Process
NORMA vydaná dňa 1.11.2023
Informácie o norme:
Označenie normy: ASTM B874-96(2023)
Dátum vydania normy: 1.11.2023
Kód tovaru: NS-1157735
Počet strán: 3
Približná hmotnosť: 9 g (0.02 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Kategórie - podobné normy:
Anotácia textu normy ASTM B874-96(2023) :
This specification covers the requirements for chromium diffusion of metals applied by pack cementation process. The four classes of chromium diffusion coating, defined by the type of base metal, are as follows: Class I (carbon steels); Class II (low-alloy steels); Class III (stainless steels); and Class IV (nickel-based alloys). Specimens shall adhere to processing requirements such as substrate preparation, materials (masteralloys, activators, and inert fillers), loading, furnace cycle, post cleaning, post straightening, visual inspection, and marking and packaging. Specimens shall also adhere to coating requirements such as diffusion thickness, decarburization, chromium content, appearance, and mechanical properties (tensile strength, and macro- and micro-hardness).
Keywords:
chromizing, corrosion-resistant coatings, diffusion coating, pack cementation ,, ICS Number Code 25.220.40 (Metallic coatings)
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