GB/T 18376.1-2008Grades of cemented carbide - Part 1:Grades of cemented carbide for cutting tools (English PDF)

2.1 Classification

Grades of cemented carbide cutting tools by using different areas into P, M, K, N, S, H six, see Table 1. To meet the various categories

Different requirements, according to the cutting tool and carbide materials with different wear resistance and toughness, divided into several groups, with 01, 10,

20 and other two-digit group number. If necessary, you can insert a number of supplementary group numbers between the two groups, represented by 05,15,25 and so on.

Table 1

Category field use

Processing P long chipping materials such as steel, cast steel, malleable cast iron and other long cutting processing

Processing M Universal alloy for stainless steel, cast steel, manganese steel, malleable iron, steel, alloy cast iron, etc.

Machining K short-chipping materials such as cast iron, chilled cast iron, short-chipping malleable iron, gray cast iron, etc.

N non-ferrous metal processing, processing of non-metallic materials such as aluminum, magnesium, plastics, wood, etc.

S heat-resistant super alloys and processing of materials, such as heat-resistant steel, processed nickel, cobalt, titanium alloy material of all kinds

Machining H hard cutting materials, such as hardened steel, chilled cast iron and other materials

2.2 grades that rule

Grades of cemented carbide cutting tools by the category code, packet number, segment number (when needed) composition, see Example 1.

Example 1.

Category Code

By using segments of the packet number

Segment No.

3 carbide cutting tools each category of claim 3.1 cutting tools and mechanical properties of the basic components of each category of claim carbide

Cutting tools and mechanical properties of the basic components of each category Carbide requirements shown in Table 2.