9h Hardness Tempered Glass Meaning

The surface hardness numbers you see above for tempered glass screen protectors are based upon the pencil hardness scale in which the resistance of a coating is determined as the grade of hardest pencil that does not mark the coating when pressed firmly.

9h hardness tempered glass meaning. Friedrich mohs invented this scale in 1812 and it ranges from 1 to 10 with glass around 5 and diamond at the top of the scale. 9h refers to the moh scale of mineral hardness. I would like to suggest you always buy 9h tempered glass for higher protection for your smartphones. This hardness is measured by the ability of minerals to.

Confused our new customer decides that the brownish slightly moss covered rock next to the jacaranda in his backyard was the hardest substance on earth. This word is also similar for the upper line but 9h having a high capacity to protect our smartphone from scratches i again give an example of a pencil but here you find 9h instead of 6h. It s not a great test to be honest but it s a decent parameter to find out if the manufacturer cares enough to test the protector. Of course it makes no sense comparing a glass material with a pencil.

That s why a 9h callout is generally placed somewhere prominent on a package. The 4h 6h 8h and 9h actually refers to the pencil hardness test or scale. The so called h means the hardness of pencil and when a protector claims that it is 9h it could resist scratches from the hardest pencil. 9h refers to the moh scale of mineral hardness.

Sadly the claims of 9h or any h hardness are not what they seem. T glass protectors have a material hardness rating of 1h to 9h 1 being the low and 9 being the high they aren t completely shatter proof. Tempering puts the outer surfaces into compression and the interior into tension such stresses cause the glass when broken to crumble into small granular chunks instead of splintering into jagged shards as plate glass a k a. It refers to mohs hardness scale of minerals in a range from 1 to 10.

When a manufacturer claims that their screen is 9h it means the screen can resist scratches from the hardest pencil. Hardness for tempered glass is like strength for steel clarity for glass flexibility for plastics or water resistance for rubber it s the biggest selling point for a tempered glass screen protector. 9h hardness refers to the screen not getting scratched by a 9h pencil the toughest of all standard pencils. Unlike plastic film protectors tempered glass retains fingerprint.

Tempered or toughened glass is a type of safety glass processed by controlled thermal or chemical treatments to increase its strength compared with normal glass. On this scale regular glass is placed at 5 and a diamond is at the highest 10. Many people use the tempered glass today without knowing what 9h hardness is. The scale is represented by numbers only without the h suffix.

After knowing the idea of mohs hardness what on earth does 9h marks on glass protectors mean. 9h hardness contrary to popular opinion this isn t a measure of the mohs hardness test. This is the only specification that you should look for to be honest. Only tempered glass on the other hand generally stand around 8h 9h on hardness scale.