HB GRAPHITE SCALE. The second graphite grading scale is known as the HB scale. Most pencil manufacturers outside of the U.S. use this scale, using the letter “H” to indicate a hard pencil. Likewise, a pencil maker might use the letter “B” to designate the blackness of the pencil’s mark, indicating a softer lead.

Comparison between HB and Number 2 Pencil: The term ‘HB’ stands for the hard and black nature of the lead used in the pencil, whereas the term ‘No.2’ determines the hardness of the lead. The term ‘HB’ belongs to the HB grading system, whereas the term’No.2’ belongs to the numerical grading system.

從筆芯較為柔軟的鉛筆開始，分為6b、5b、4b、3b、2b、b、hb、f、h、2h、3h、4h、5h、6h、7h、8h、9h等17種類。 越柔軟的筆芯，寫出來的字越飽滿、顏色更濃郁。 越硬、越難折斷的筆芯，可以畫出清晰的線，相對顏色也較淺。三菱鉛筆則和日本工業規格（jis）的規格 ...

Generally, an HB grade about the middle of the scale is considered to be equivalent to a #2 pencil using the U.S. numbering system. In reality however, there is no specific industry standard for the darkness of the mark to be left within the HB or any other hardness grade scale.

2023年12月15日 · An HB pencil is a medium-hardness pencil used worldwide. A No. 2 pencil is the American equivalent of the HB pencil, both commonly used for writing and standardized testing. HB pencils and No. 2 pencils are tools that have …

2025年3月28日 · HB (Hardness & Blackness): HB pencils sit in the middle of the scale. They balance hardness and blackness, making them a popular choice for everyday writing and sketching. They’re particularly popular among schoolchildren learning to write. F (Fine): F pencils sharpen to a fine point, sitting between HB and H in hardness. Not all ...

2021年2月21日 · HB is considered to be the middle point of the scale and the numbers represent either an increase in the blackness or softness of the core of the pencil i.e. B, 2B, 3B, B, etc. Or they represent an increase in the hardness of the core due to a higher ratio of clay to graphite producing lighter grey marks ie H, 2H, 3H, 4H, etc.

The difference between the two pencils is that the ‘HB’ pencil has a medium lead, whereas 2H pencil has a soft lead.

2023年1月20日 · HB and 2 are the same hardness. That being said, the bottom two pencils in your photo will be the softness since they are Japanese pencils. They're the same. American pencil companies (and some european pencils like Staedtler Noris) use the numerical graphite scale, while others use the H/B graphite scale.

The primary distinction between the 2B pencil and the HB pencil lies in their lead hardness. The 2B pencil has a softer lead compared to the HB pencil. This means that when using a 2B pencil, the lead will leave a darker and more pronounced mark on the paper. The HB pencil, on the other hand, has a medium hardness lead, resulting in a lighter mark.