Description RD3190 has been developed to formulate high quality automotive engine oils and multigrade oils. The following performance levels can be achieved with oils formulated with RD3190. The Recommend Dosage Performance Level Dosage wt% SN/CF 12.6 SL/CF 12.3 Characteristics Item Typical Value Test Method Flash point (COC) 180min GB/T3536 Kinematic Viscosity (100),mm2/s Report GB/T265 TBN, mg KOH/g 80 SH/T0251 Calcium, m% 2.45 SH/T0270 Zinc, m% 0.86 SH/T0226 Phosphorus, m% 0.78 SH/T0296 Nitrogen, m% 0.78 SH/T0224 Sulfur, m% 2.54 SH/T0303 Molybdenum, m% 0.03 Spectrophotometry The product is packed in 200 liter metal drum (net weight:200 kg/drum).
Material: high carbon spring steel, spring steel, stainless steel, alloy steel Compression Spring, Extension Spring : Wire Diameter: 0.2-40.0mm Torsion spring wire diameter :0.2-35mm Surface Finish: black , Zinc, Nickel, silver, golden, tin, powder coating, shot pin Applications: Automotive, medical device, agricultural machinery ,electronics, toy, electric power distribution. Extension spring hook include Germany hook, British hook, Side hook We can customize special design of springs based on your requirement.
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Modern mineral base oils are the result of a long and complex distillation and refining processes. The feedstock used is crude oil. This substance is not of uniform quality but consists of several thousands of hydrocarbon compounds in which the elements carbon and hydrogen are present in all molecules and, in part, are bound to other elements. The hydrocarbons can be divided into three main groups: paraffinic, naphthenic and aromatic. Paraffinic hydrocarbons can be further divided into two subgroups: normal paraffinic and iso- paraffinic. Paraffinic hydrocarbons are the best lubricants. The distillation process in the refinery separates the hydrocarbons contained in the crude into cuts based on the molecule size. Furthermore, as many unwanted substances as possible are removed in the process, such as sulphur, aromatic hydrocarbons, paraffin wax, etc. In other words the mineral oil production process is physical cleaning and the end product is so-called paraffinic base oil. Most of the hydrocarbons in the base oil are paraffinic, but it also contains naphthenic and aromatic molecules. When the finished lubricant, such as motor oil, is made of these, several additive compounds are used to improve the base oil properties. The final outcome can also be so-called naphthenic base oil, where most of the hydrocarbons are naphthenic. Their cold properties are excellent.