Copper and brass which is softer? To understand the "copper and brass which is softer" this question, we first need to know the copper and brass hardness and softness indicators. The softness of copper and brass is generally identified by the property of "hardness". To know "copper and brass which is softer", we must first know the hardness of copper and brass. There are many types of hardness of copper and brass. The different hardnesses of copper and brass can be converted to each other. When comparing "which is softer, copper or brass", you should always choose the same hardness. And copper and brass have different grades, different copper and brass grades have different hardness.
Therefore, to say clearly "copper and brass which is softer", not in a few words can be clear.
Copper and brass plate
Which is softer, copper or brass? Copper and brass which is softer is actually said to be the hardness of copper and brass. The "indicator of which is softer, copper or brass" is the hardness of copper or brass.
Definition of hardness of copper and brass: it is the ability of copper and brass material to resist being pressed into a surface by an object harder than it.
Before saying "copper and brass which is softer", we first come to understand the hardness of copper and brass expressed method?
1, copper and brass Brinell hardness: copper and brass Brinell hardness to HB [N (kgf/mm2)] said (HBS \ HBW) (refer to GB/T231-1984), the production of Brinell hardness method is often used to determine the annealed, normalized and tempered steel parts, as well as cast iron, non-ferrous metals, low alloy structural steel and other embryo or semi-finished products hardness.
2, copper and brass rockwell hardness: copper and brass rockwell hardness can be divided into HRA, HRB, HRC, HRD four, their measurement range and application range is different. General production HRC used most. The indentation is smaller and can measure the hardness of thinner and harder materials and finished parts.
3, copper and brass Vickers hardness: Vickers hardness expressed in HV (refer to GB/T4340-1999), measuring very thin specimens.
Copper and brass which is softer?
1, according to the above hardness table of copper and brass, we are still difficult to get out of copper and brass which is softer. Because different grades of copper and brass have different hardness.
2, the characteristics of metal hardness: metal materials are generally characterized by the hardness of pure metal is lower than its alloy, its alloy hardness, and low melting point.
(1) brass is an alloy of copper and zinc, high hardness.
(2) and oxygen-free copper and copper are pure copper, just different purity, oxygen-free copper purity is higher, the purity of copper can also reach 99.9% ~ 99.99% (different grades of some differences) copper contains very few impurities
(3) so the highest purity of oxygen-free copper, but also the softest, copper is slightly hard (close to oxygen-free copper), brass is the hardest.
3, summed up: copper and brass in the copper is softer.
