100 pcs 2.5mm G10 precision zirconia ZrO2 and similar items

Description Item: 2.5 mm G10 precision zirconia ZrO2 ball beads Dimension: 1 mm Material: Zirconia Zirconia ceramic balls (ZRO2) Zirconia ceramic ball, at room temperature with high strength and high toughness, wear resistance, high temperature resistance, corrosion resistance, high stiffness, non-magnetic, electrical insulation. Zirconia ceramic balls at 600 ?, strength, hardness is almost constant having a density of 6.00g / cm3, a thermal expansion coefficient close to the metal if the expansion coefficient, may be used with metal bonding. Silicon nitride ceramic balls (SI3N4) Silicon nitride ceramic balls are precision ceramic non-oxidizing atmosphere at high temperature sintering, high strength, high wear resistance, high temperature, corrosion, acid and alkali, long-term use in the sea, and has absolute power absolutely magnetic good performance. At 800 ?, strength, hardness is almost constant, having a density of 3.20g / cm3, almost 1/3 of the weight bearing steel, when rotating the centrifugal force is small. High-speed operation can be realized. Also has a self-lubricating, it can be used without lubrication medium to high pollution of the environment. Become ceramic bearings, hybrid ceramic ball bearing material of choice. Silicon carbide ceramic balls (SIC) Ceramic Ball product performance and stability, with the best overall performance of silicon nitride. Compared with steel, lighter than steel quality, low friction coefficient, good sports performance, the elastic modulus of steel is 50%, the thermal expansion coefficient of less than 25% of the steel, the high temperature at 1000 ? before to maintain high strength and hardness, corrosion resistance, no rust, non-magnetic, can work without oil lubrication. I am in the production of advanced ceramic ball field level. Silicon carbide ball Material: sintered silicon carbide density: 3.15 g / cm3 Color: Black Level: G10, G16 Ceramic balls advantages: 1, high hardness. Ordinary Gcr15 bearing steel Vickers hardness 800HV, and zirconia ceramic ball hardness 1700HV above. 2, high wear resistance. In my company's product processing technology, for example, ordinary grinding balls (one millimeter margin) takes about 2-4 hours, and silicon nitride balls processing needs at least 150-200 hours. 3, corrosion-resistant. The stability of the ceramic material is the best, especially silicon nitride balls, hardly react with any substance, widely used in petroleum, chemical, food and other needs contact with strong oxidizing agents and strong reducing agents in the industry. 4, high temperature. Ceramic balls in the sintering process to go through thousands of degrees of heat and a lot of pressure, the internal molecular structure is very stable, very dense arrangement, which makes it a very low coefficient of thermal expansion, temperature changes almost no effect on the structure size. The operating temperature ceramic ball can reach 1,200 degrees Celsius or higher, its low impact is small, so it is widely used in the aerospace field. 5, light weight. Ceramic ball weighs only 50% -60% of the ordinary balls, in the field of aerospace bearings and promising. 6, self-lubricating. Ceramic ball itself has a good self-lubricating properties, high precision machining. You can reach the G5, G10 level, wear-resistant ceramic ball and structural stability, not easily deformed, so it can be finished, be applied to many specific industries. 7, insulating. Ceramic with good insulation effect. Package: 100 pcs 2.5mm silicon nitride ceramic balls SI3N4 Ball G5 Payment: 1.Paypal payment is default payment way. 2.All the payment must be made within 7 days. Shipping 1.All our items will be sent out via fast way--FeDex,DHL,UPS ,TNT and some other fast way. 2.Normally , we would send to any place.But some loctions may be vary on shipping. We set them into excluding locations.If you are in the list, please contact us for information. 3.Shipping date: DHL is arounding 3 -- 12 days. FeDex,UPS,TNT is arounding 7-- 14 days. 4.For some length and weight, DHL may be cheaper.But it is not always.We will choose proper carrier. Duty: We firmly believe there will be duty to the orders. Buyers must pay this fee. But we will do our best to help buyers to low the fee as possible.We would mark the reasonable declared price on the shipping invoice. It do work to most of buyers. Before After Purchase 1.If you have any question before or after purchase, please feel free to contact us. We will reply them as soon as possible. 2.If there is any problem on order, please contact us at once. We will solve them at fastest and friendly ways. Handling Time: Normally, we would send out all the orders in 3--5 days.We set 10 days is to avoid problem from. Packing: We have do a lot of work on packing. We would use hardborad and pearl wool to pack them.It can protect item from bending during shipping.