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ASTM B874-96(2023)
Standard Specification for Chromium Diffusion Coating Applied by Pack Cementation Process
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STANDARD published on 1.11.2023
The information about the standard:
Designation standards: ASTM B874-96(2023)
Publication date standards: 1.11.2023
SKU: NS-1157735
The number of pages: 3
Approximate weight : 9 g (0.02 lbs)
Country: American technical standard
Category: Technical standards ASTM
The category - similar standards:
Annotation of standard text 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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