The differences between hb and 2b pencils are: 1, different blackness, 2B pencil with higher blackness and HB with lower blackness. 2, the hardness is different, 2B pencil is softer than HB pencil. 3. The components are different. The main component of 2B pencil is graphite, and HB pencil is doped with some colorless substances. 4, different uses, HB pencils are generally suitable for writing, and Class 2B pencils are suitable for painting.

1, blackness is different.

The traces drawn by pencil 2B are relatively dark, while those drawn by pencil HB are relatively shallow, with B being soft and dark, 10B being the softest and deepest, H being hard and light, and 10H being the hardest and lightest. According to the actual needs, the depth of 2B pencil ink is suitable for the examination coater to read cards and write easily.

2. The hardness is different.

The refill of 2B pencil is soft, while the refill of HB pencil is very hard, so it is not easy to break when used. According to the hardness of the refill, it is 8B, 6B, 5B, 4B, 3B, 2B, b, HB, h, 2H, 3H, 4H, 5H, 6H, 8H and 9H from soft to hard.

3. Different ingredients.

2b pencil is mainly composed of graphite, while hb pencil not only contains graphite, but also adds some clay to make pencil lead harder.

4. Different uses.

2b pencil is dark in color and low in hardness, which is suitable for drawing and scribbling all kinds of cards, especially when filling out answer sheets in exams. Hb pencil is more suitable for writing because of its high hardness and not easy to break, and it is a necessary pencil for children to learn to write.