The darkness of pencil lead is determined by its graphite-to-clay ratio. The higher the graphite content, the darker the lead. Therefore, a pencil lead labeled as "HB" or "B" will be darker than a lead labeled as "H" or "F." The darkest pencil lead commonly available is typically labeled as "6B" or "8B," indicating a high graphite concentration.
There is no lead in pencil - Pencil is made from graphite
pencil . The 'lead' in a pencil is actually graphite.
The shades of graphite pencil from lightest to darkest are typically categorized as 9H (lightest), 8H, 7H, 6H, 5H, 4H, 3H, 2H, H, F, HB, B, 2B, 3B, 4B, 5B, 6B, 7B, 8B, 9B (darkest). The 'H' pencils are harder and lighter, while the 'B' pencils are softer and darker.
pencil is use in chromography because the pencil is made from lead
Lead pencils actually contain graphite, not lead. The "lead" in a pencil is a mix of graphite and clay.
A 6B pencil lead will generally mark darker than a 2B pencil lead. The higher the 'B' number, the softer and darker the lead.
the higher the number, the darker it gets :D
The term "6B" typically refers to a grade of pencil lead that is very soft and produces a dark, rich line. In the context of pencil grading, 6B is one of the darkest available, with higher numbers indicating softer and darker leads. However, other mediums like charcoal or certain inks can produce darker marks than a 6B pencil. Therefore, while 6B is dark among pencils, it isn't the absolute darkest medium available.
A typical lead pencil does not actually contain lead. The "lead" in a pencil is made of graphite, which is a crystalline form of carbon. Therefore, there is 0% lead in a lead pencil.
I don't quite understand what you mean by HB-2 pencil but if you mean HB pencil / #2 Pencil it is not the softest pencil. Pencils scale from 9H to 9B, (HB in the middle) and 9B would the softest and darkest pencil there.
There is no lead in pencil - Pencil is made from graphite
Pencil lead is a compound
If your asking if the pencil has Lead, then the answer is that most pencils do NOT have lead in them anymore.
Pencil lead isn't really lead, it is graphite, a form of carbon. Pencil lead doesn't have any lead in it whatsoever.
Pencil lead is a conductor.
we get lead of pencil from the mixture of clay and graphite
A 9mm pencil lead is thicker than a 7mm pencil lead.