鎢鋼等級

鎢鋼是碳化鎢的俗稱，英文是 Tungsten Carbide ，當然除了碳跟鎢之外還加了鈷以及其他的合金材料以增加他的機械性能..鎢鋼的硬度很高，所以常用來做為切削刀具的材質。

鎢鋼一般是用粉末燒結的方式製成..將鎢粉末、碳黑粉末、用作結合劑的鈷金屬粉末以及其他合金粉末混合後，施以高壓，在高溫下燒結而成。

鎢鋼的機械性質主要由兩個部分影響，第一個部分是鈷的含量..含量越高硬度越低但是韌性較好..個是粉末的粒徑，粒徑越小越耐磨，但是成本較高。

鎢 鋼 材 質 分 析 表
鎢鋼種類 MG
超微粒		 Super MG
極細超微粒		 NMG
奈米超微粒		 EMG
高鈷超微粒
鎢鋼等級-超微粒 鎢鋼等級-極細超微粒 鎢鋼等級-奈米超微粒 鎢鋼等級-高鈷超微粒
化學成分 Co(%) 10 12 9 13
WC incl. Doping (%) 90 88 91 87
物理特性 Density ISO 3369 (g/cm3) 14.5 14.1 14.3 13.9
Hardness HV30 ISO 3878 1610 1680 2000 1700
Hardness HRA ISO 3778 91.9 92.3 94.1 92.4
Transverse Rupture Strength (N/mm2) >3600 >3800 >4000 >3900
Transverse Rupture Strength (1000 psi) >522 >551 >565 >565
顯微數據 Porosity ISO 4505 A <=2 <=2 <=2 <=2
Porosity ISO 4505 B 00 00 00 00
Porosity ISO 4505 C 00 00 00 00
微構造 Average Grain Size (μm) 0.6 0.5 0.2 0.5
ISO標準 Classification ISO 513 K30 ~ K40 K40 ~ K50 K10 ~ K30 K40 ~ K50

應用範圍

 Work Material Stainless steels Titanium alloys Plastics Non ferrous metals Corrosion and heat resistant steels Stainless steels Titanium alloys Non ferrous metals Corrosion and heat resistant steels Fibreglass-reinforced plastic Grey cast iron Carbon fibre-reinforeced materials Hardened steel Graphite composite materials Aluminium alloys Corrosion and heat resistant stells Stainless steels Titanium alloys Non ferrous matals
Characters Extra fine grain hard metal for solid carbide rotary tools applications in the ISO K30-K40/C2-C3. Suit for most cuttings. Superior grain for solid carbide rotary tools applications in very wide range ISO K40 -K50 / C1-C2. Great for low and high speed milling and roughing work when milling and boring. High hardness and extreme bending strength, suit for the drilling of electronic boards and other fibreglass-reinforced plastics and milling of difficult materials. Murakami-Etching

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