Taizhou Sanxin Cemented Carbide Co., Ltd.  

Product Name: Cast Tungsten Carbide for Weld Parts in Oil Field 12-20# Model NO.: 12-20# Mining Object: Coal Machinery Application: Hard Facing Welding Brazing Stock: Available Sizes: 12-20 Mesh Shapes: Angular Color: Gray Name: Hard Facing Layer Material Machine Welding: Automatic Flow Raw Material: Tungsten Carbide Crushed Usages: Augar Wear Resistant Trademark: no mark Transport Package: Iron Buckets Specification: 12-20# Origin: Taizhou HS Code: 8113001090 Product Description Crushed CarbideSintered Crushed Carbide is mostly used in Hardbanding operations.By running amild steel weld pool then feeding the crushed carbide via afeed hopper this give hardness and durability to any drill pipes, digger teeth, drag plates and shredders for the use in quarrying, excavating and recycling. Available in two grades: fused (fused tungsten carbide), or sintered (sintered tungsten Carbide) they have significantly different properties.Fused Tungsten CarbideThis is the eutectic of tungsten and carbon. It has avery high hardness (typically 2000 HV) but is very brittle, it performs very well in pure abrasion applications but if subjected to impact fails prematurely. The maximum size is limited to around 10 mesh (2mm) due to its structure.Sintered Tungsten CarbideProduced from very fine tungsten carbide (1-3 micron) cemented together with cobalt (6-20%) often with other elements (titanium tantalum etc) to avariety of characteristics. Hardness is typically 1600 HV and is very able to withstand impact. Sintered grit is manufactured from recycled tungsten carbide.The standard grade contains titanium and tantalum and is generally used for hardbanding, where the grit is poured into aMIG weld pool producing the lowest cost tungsten carbide based hardfacing.An alternative grade is also available free of titanium and tantalum, which is better suited when the grit is being applied using brazing techniques.If you are looking for asolution to sliding, impact, or abrasive wear damage,look to our tungsten carbide chips.It is unique answer to the wear challenges in underground mining, surface mining, material crushing, tunneling, and road construction,etc.Tungsten carbide chips:1, lasts up to 6x longer than standard sttel wear solutions.2, resists wear before it starts, which means less downtime and maintenance costs.3, is our specially formulated cemented carbide chips.Application:1, Use small carbide chips when proxessing fine-grained abrasives like sand.2, Small carbide chips fit closely together and prevent fine-grain abrasives from wear away the steel matrix between the chips.3,Use large carbide chips for processing large-grained abrasive like asphalt.We'll help you determine the right grain sizes for your application.Stock sizes:5 x8 #3 x5 mm8 x14 #2.36 x1.4 mm10 x16 #2.0 x1.18 mm12 x16 #1.7 x1.18 mm12 x20 #1.7 x0.85 mm12 x30 #1.7 x0.65 mm14 x20 #1.4 x0.85 mm16 x20 #1.18 x0.85 mm20 x30 #0.86 x0.6 mm30 x45 #0.6 x0.35 mm40 x60 #0.43 x0.25 mm60 x100 #0.25 x0.15 mmOTHER SIZES ARE ON REQUEST.CHEMICAL COMPOSITION:Parameter:Average GradeHigher GradeCARBON: TOTAL5.50 -5.85%5.50 -5.85%CARBON: FREE0.03 -0.15%0.03-0.05%COBALT:5.50 -10.00%6.00-8.00%TIC/TAC/VC0.50% MAX0.10%IRON: FREE1.50% MAX0.50%TUNGSTEN:BALANCEBALANCEDENSITY:13.80 -14.70g/cm314.50-14.90g/cm3HARDNESS:88 -92 HRA89 -92 HRA