Category 類 別 Trade mark 牌 號 Chemical composition 主要成份(%) Characteristics & application 特性和用途 Equivalent to AWS 相當AWS Hardfacing 硬 面 堆 焊 S 101 C3 Cr28 Ni4 Si3.5 Fe Rem. HRc48-54. Resistance to wear, gas corrosion and oxidation. Hardfacing of bucket tooth and case pump. HRc48-54，耐磨、耐氣蝕、抗氧化。堆焊鏟斗齒，泵套 　 S 111 C1 Cr29 W5 Co Rem. HRc38-47. Resistance to wear and corrosion at high-temperature. Hardfacing of high temperature and pressure valve. HRc38-47，高溫下耐磨、耐蝕。堆焊高溫高壓閥門 ECoCr-A S 112 C1.5 Cr29 W8 Co Rem. HRc45-50. Resistance to wear and corrosion at high-temperature. Hardfacing of valve and hot-rolling pass. HRc45-50，高溫下耐磨、耐蝕。堆焊閥門，熱軋孔型 ECoCr-B S 113 C2.5 Cr30 W17 Co Rem. HRc≥55. Wear and heat resistance at high temperature, bad shock resistance. Hardfacing of screw charging carriage. HRc≥55，高溫下耐磨、耐熱，但抗沖擊性差。堆焊螺旋送料機用 　 S 114 C2.5 Cr30 W12 Co Rem. HRc≥53. Wear and heat resistance at high temperature, bad shock resistance. Hardfacing of three-cone bit. HRc≥53，高溫下耐磨、耐熱，但抗沖擊較差。堆焊牙輪鉆頭 ECoCr-C