Classification of Hb pencils?

HB pencils are classified mainly based on the hardness of their refill. While “HB” itself has come to represent a specific hardness grade, there are other models that are related to or similar to HB pencils within the broad classification of pencils. The following is a detailed description of the HB pencil and its related classifications:

​First, the definition of HB pencil

​HB: means “hard” and “black” is half, indicating that the hardness of the pencil is moderate, neither hard nor soft, and the color is moderate. This pencil is mainly used for daily writing, general drawing and filling in answer cards and other occasions.

​Second, according to hardness classification

​The hardness classification of pencils is mainly indicated by the letters “H” and “B” and the numbers in front of them. These classifications are closely related to the HB pencil and together constitute the hardness system of the pencil.

​1. H series: represents the pencil with higher hardness. The larger the number in front of the H, the harder the pencil and the weaker the writing. For example, the hardness of 2H, 3H, 4H and other pencils gradually increases, which is suitable for making marks on hard objects or for occasions where fine lines are needed.

​2. B series: represents a soft or dark pencil. The larger the number in front of B, the softer the pencil and the darker the writing. For example, the softness of 2B, 3B, 4B and other pencils gradually increases, which is suitable for painting, especially sketching and other occasions that require heavy lines and shadows.

​3. HB and F series: HB pencils are located between the H series and the B series, indicating moderate hardness. The F pencil indicates that the hardness is between HB and H, which also belongs to the category of medium-hardness pencils, but it is relatively rare.

​Third, other classification methods

​In addition to the classification by hardness, pencils can also be classified by shape, process and other ways.

​1. Classification by form: including log pen holder, sharpened pen holder, capped pencil, etc. These categories are mainly based on the appearance and structural design of the pencil.

​2. Classification by process: Traditional pencils and automatic pencils are the two main process classification methods. Traditional pencils need to be manually sharpened to use, while automatic pencils have a built-in lead core propulsion mechanism for easy use.

​Fourth, summary

​HB pencil, as a common type of pencil, occupies a moderate position in the hardness classification system. By comparing and analyzing with pencils of other hardness grades, we can have a more comprehensive understanding of the characteristics and scope of application of HB pencils. At the same time, the various classification methods of pencils also provide us with more choices and convenience.