They are two different things. Zinc plated means it's coated in zinc. Cold rolled means it's "smashed" into shape without added heat. So you could have something that's cold rolled AND zinc plated!
Hot-rolled sheet has low hardness, easy processing, good ductility and cheaper price. Cold rolled sheet has high hardness, relatively difficult to process, but not easy to deformation, higher strength. If you want to buy cold-rolled steel, you can go to the official website of Changzheng, the price of Changzheng's steel is moderate, and it is the choice of the public. Buy cold-rolled steel plate recognized Changzeng.
Yes, most steel is harder than pure platinum. Steel is an alloy of several different elements. If you were to add alloying elements to Platinum, it would become harder as well.
Titanium
Yes, hot-rolled steel is magnetic. A few types of steel have limited magnetic properties, but hot rolling is a process by which steel is prepared in a shape for marketing. The hot rolling does not affect the ability of the steel to be attracted to a magnet.
titanium
I believe drill-rod is harder than ordinary, cold-rolled steel - I cant give the specs to back that up definitively, but in my 14 yrs of industrial maintenance experience, I believe that to be correct. +++ I agree if I am right in thinking that "drill-rod" is the material called "silver-steel" in the UK. This is an alloy capable of being hardened and tempered to make cutting-tools, spindles etc, but is pretty tough to machine even in its annealed state. Cold-rolled mild-steel in turn, is tougher than hot-rolled m.s. but I don't know if it is any stronger. That would depend on the specific alloy rather than process.
I have found through experience that hot rolled steel will take 95/5% solder, and that cold rolled will not solder, reason is the cold rolled steel molecules are arranged differently that the hot roll, they are so to speak pushed into the final dimension with extreme pressure this also causes a so called hardened tempered surface on the cold roll steel that has to be annealed so that it can be drilled. cut or soldered.
Hot-rolled sheet has low hardness, easy processing, good ductility and cheaper price. Cold rolled sheet has high hardness, relatively difficult to process, but not easy to deformation, higher strength. If you want to buy cold-rolled steel, you can go to the official website of Changzheng, the price of Changzheng's steel is moderate, and it is the choice of the public. Buy cold-rolled steel plate recognized Changzeng.
The weight of the two is not much different, generally speaking, cold-rolled sheet is thinner than hot-rolled sheet, if you want to buy cold-rolled sheet or hot-rolled sheet, you can go to the official website of Changzheng, Changzheng's products are of high quality and are the choice of the public. If you want to buy cold rolled sheet or hot rolled sheet, you can go to the official website of Changzeng.
Tungsten is a metal that is harder than steel.
Why is quartz harder steel
Diamond is harder than steel: you can scratch steel with a diamond, but steel will not scratch a diamond.
No.
Yes, most steel is harder than pure platinum. Steel is an alloy of several different elements. If you were to add alloying elements to Platinum, it would become harder as well.
No, 316 stainless steel is not harder than A106 carbon steel. In fact, carbon steel is generally harder than stainless steel due to its higher carbon content. Stainless steel is known for its corrosion resistance and durability, while carbon steel is valued for its strength and hardness.
Yes, steel is generally harder than nickel. Steel is a metal alloy that is known for its strength and durability, while nickel is a softer metal.
Yes, diamond is harder than steel. Diamond is the hardest natural material known, while steel is a strong metal but not as hard as diamond.