Pencil degrees, what is the difference between pencil degrees? What is the difference between B and HB pencils?
Classification of pencils:
Graphite is a type of mineral found in the earth's crust. It can be found in various forms, including pencils and colored pencils. Graphite pencils have been used for thousands of years to draw on paper or other surfaces. The process of making these pencils involves grinding graphite into a powder and then mixing it with another material (like clay) to form a paste. Paper manufacturers use different types of graphite to make their products, including soft pencils and hard pencils.
The physical properties of graphite make it an ideal material for making pencils: it is soft enough to be easily handled without breaking into pieces when pressed; has good toughness, so it won't break easily; Its hardness also makes it resistant to corrosion caused by water or other chemicals when exposed outdoors for long periods of time (usually over a year).
Graphite pencils are rated on a hardness scale of 1 to 4, with 1 being the softest and 4 being the hardest. Pencil hardness is measured using the Vickers method, which involves placing the pencil in a vice and applying pressure until it breaks. The resulting crack is then measured under an optical microscope. Graphite pencils are available in different grades or qualities, depending on their resistance and the amount of impurities they contain. The higher the quality of graphite used to make a pencil, the finer its point and the more expensive it is.
The grades of graphite used in pencils can be divided into two categories: lower grades and high grades. Poor quality graphites are less expensive than higher quality ones, but they are also not as durable or as easy to work with as higher quality pencils. High quality graphite has been processed many times before being used in the manufacture of pencils; This means that it has been hardened by heat treatment, which gives it better performance in erasing marks on the paper.
Classification of pencils:
Graphite pencils are rated on their graphite quality, which can be measured by a number of factors. The most important factor is particle size, which refers to the size of each graphite particle. The smaller the particle size, the higher the quality of paper that can be used to draw with this pencil.
Another factor affecting the quality of graphite pencils is their adhesion to surfaces. This is measured by "moisture", which refers to the amount of moisture it contains (similar to how water affects wood). Graphite pencils with higher hygroscopicity generally have more desirable properties such as smoother lines or better shading ability than lower grade graphite pencils with less hygroscopicity.
Graphite pencils are classified into several categories, including softness, hardness, and color.
- Softness: The softer the graphite, the more likely it is to break down when the pencil is squeezed. Fine graphite is also less likely to produce a fine line on paper.
- Hardness: Harder graphite is harder to sharpen and tends to draw smoother lines when used with water-based paints or colored pencils. It's also more durable than soft graphite, so it doesn't break as easily when you hit it hard.
- Color: The color of graphite can vary depending on its source - it can be black, gray or grayish brown depending on how long it is exposed to air and weather - but most manufacturers offer a variety of shades of gray or black so artists can find the right color for their projects without having to worry about what shade they're looking for
The difference between B and HB pencils:
Graphite pencils are made from pure graphite, a very soft and smooth material. It is available in varying degrees of hardness, with 2H being the softest and 4B the hardest. Pencil hardness is measured in “H” units, where 1H equals 1 unit. A pencil's hardness can be increased by using a softer tip or by applying more pressure when writing with it. This will reduce its friction against the page and help prevent smudging or bleeding when writing. Graphite pencils are available in many different grades, from 2H to 4B. These grades represent the percentage of graphite infused into the wood. The higher the number, the more graphite there is in the pencils.
- 2H pencils contain 2-3% saturated graphite; They are perfect for drawing and painting.
- H pencils contain 3-5% impregnated graphite; They are perfect for sketching, sketching and writing.
- F pencils contain 5-7% saturated graphite; They are perfect for sketching, sketching and writing.
- HB pencils contain 7-9% saturated graphite; They are perfect for sketching, sketching and writing.
Graphite pencils come in a range of shades and are used to create different effects
- 2H: This is the highest quality for graphite pencils. It has a soft, smooth feel and is perfect for neat jobs.
- H: This grade of graphite pencils has a slightly harder feel than 2H but still has enough soft tips for coloring and shading.
- F: F is the second highest grade of graphite pencils and provides excellent traction when drawing on paper or canvas. They are also ideal for use with dry media such as charcoal or pastels.
- HB: HB stands for "solid black" - not as hard as F, but still has good pull and gives you enough control over the weight of your line that it can be used for fine detail work and for broad strokes.
- B: B stands for "soft black", which means that this type of pencil has a softer tip than the HB but still offers excellent control over line thickness when drawing on paper or canvas. They are also ideal for use with wet media such as ink.
Graphite pencils come in a wide variety of grades and types, each with their own characteristics.
Graphite pencils are available in 2H, H, F, HB, B, 2B, 3B, 4B... Grade H is the simplest, with only 0.5 mm thickness. It is suitable for general purposes, especially drawing and layout. Grade B is 1mm thick and can be used for more detailed work such as painting. Grade F is 1.5mm thick and can be used for precision work such as cartography or architecture.
Graphite pencils are available in a wide variety of grades, from 2H to 4B. The higher the number, the softer the graphite. The number also indicates the amount of lead contained in each pencil. The higher the number, the higher your chances of getting your money back.
- 2H: This is a soft graphite grade ideal for beginners as it is easy to sharpen and will not break easily when sharpened multiple times.
- 3B: This is a medium soft graphite grade suitable for people who want a hardness between 2H and HB. It's not as hard as HB but not as soft as F or B; We are somewhere between these two degrees of hardness.
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