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| 
						Category | 
						Trade- | 
						Equivalent to China Standard | 
						Characteristics & application | 
						Equivalent to AWS | ||||
| Hard-surfacing 硬 面 堆 焊 | D 667 | EDZCr-B-15 | 
						HRc≥48. Resistance to wear, gas corrosion and oxidation. Hardfacing of blast furnace hopper and cracker part. | 
 | ||||
| D 802 | EDCoCr-A-03 | 
						HRc38-47. Resistance to heat, wear and corrosion. Hardfacing of high temperature part such as the edge of thermo-cutter. | ECoCr-A | |||||
| D 812 | EDCoCr-B-03 | 
						HRc45-50. Resistance to heat, wear and corrosion. Hardfacing of high temperature part such as internal-combustion engine valve. | ECoCr-B | |||||
| D 822 | 
 | 
						HRc≥53. Resistance to Wear and heat, bad shock resistance. Hardfacing of rotating blade wheel of boiler. | 
 | |||||
| D 832 | EDCoCr-C-03 | 
						HRc≥50. Wear and heat resistance. Hardfacing of high temperature part such as hot-rolling guided way. | ECoCr-C | |||||
| D 842 | EDCoCr-D-03 | 
						HRc28-38. Corrosion and thermo-fatigue resistance, work harding. Hardfacing of hot forging die. | 
 | |||||
| Category 類 別 | 
						Trade 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 | 
						HRc48-54. Resistance to wear, gas corrosion and oxidation. Hardfacing of bucket tooth and case pump. | 
 | ||||
| S 111 | 
						C1 Cr29 W5 | 
						HRc38-47. Resistance to wear and corrosion at high-temperature. Hardfacing of high temperature and pressure valve. | ECoCr-A | |||||
| S 112 | 
						C1.5 Cr29 W8 | 
						HRc45-50. Resistance to wear and corrosion at high-temperature. Hardfacing of valve and hot-rolling pass. | ECoCr-B | |||||
| S 113 | 
						C2.5 Cr30 W17 | 
						HRc≥55. Wear and heat resistance at high temperature, bad shock resistance. Hardfacing of screw charging carriage. | 
 | |||||
| S 114 | 
						C2.5 Cr30 W12 | 
						HRc≥53. Wear and heat resistance at high temperature, bad shock resistance. Hardfacing of three-cone bit. | ECoCr-C | |||||
D802鈷基堆焊焊條
型號:EDCoCr-A-03
說明:鈷鉻鎢合金焊芯的鈷基堆焊焊條,采用直流反接,堆焊金屬在650℃工作仍能保持良好的耐磨性和耐腐蝕性。
用途:用于在650℃左右工作仍能保持良好的耐磨性和耐腐蝕性的場合,或承受沖擊和冷熱交錯的部位,如堆焊高溫高壓閥門及熱剪刀刃等。
熔敷金屬化學成分/%
C 0.7-1.44 Si≤2 Mn≤2 Cr 25-32 Fe≤4 W 3-6 其他≤4 余量為Co堆焊硬度HRC:≥40
D812鈷基堆焊焊條
型號:EDCoCr-B-03
說明:鈷鉻鎢合金焊芯的鈷基堆焊焊條,采用直流反接,堆焊金屬在650℃工作仍能保持良好的耐磨性和耐腐蝕性。
用途:用于高溫高壓閥門、高壓泵的軸套筒和內襯套以及化纖設備的斬刀刃口等。熔敷金屬化學成分/%
C 1-1.7 Si≤2 Mn≤2 Cr 25-32 Fe≤5 W 7-10 其他≤4 余量為Co
堆焊硬度HRC:≥44
D822鈷基堆焊焊條
型號:EDCoCr-C-03
說明:高碳鈷鉻鎢合金焊芯的鈷基堆焊焊條,采用直流反接,渣覆蓋性好,成形美觀,具有優良的耐磨、耐熱、耐腐蝕性,在650℃高溫也能保持這些特性。
用途:用于牙輪鉆頭軸承、鍋爐的旋轉葉輪、粉碎機刃口、螺旋送料機等磨損部件的堆焊。
熔敷金屬化學成分/%
C 1.75-3 Si≤2 Mn≤2 Cr 25-33 Fe≤5 W 11-19 其他≤4 余量為Co堆焊硬度HRC:≥53
D842鈷基堆焊焊條
型號:EDCoCr-D-03
說明:鈷基4號低碳鈷基鉻鎢合金焊芯堆焊焊條,采用直流反接,堆焊金屬在800℃仍能保持良好的抗熱疲勞性和耐蝕性。
用途:用于高溫條件下承受沖擊和冷熱交錯的工件堆焊,如熱鍛模,閥門密封面等,具有良好的性能。
熔敷金屬化學成分/%
C 0.5-0.5 Si≤2 Mn≤2 Cr 23-32 Fe≤5 W≤9.5 其他≤7 余量為Co堆焊硬度HRC:28-35
D852鈷基堆焊焊條 型號:EDCoCr-E-04
說明:用于耐高溫磨損堆焊焊條,工作溫度1100℃,具有紅硬性,抗烈性.也可用于高溫,高壓閥門熱段模等,同時經受沖擊和高溫,耐蝕的部件. HRC≥44
D862鈷基堆焊焊條 型號:EDCoCr-E-05
說明:適用于高溫磨性磨損及細顆粒小角度沖蝕磨損工況。單層堆焊即可滿足性能要求,最高工作溫度1000℃,堆焊層硬度:20℃--HRC:64-66、工作溫度600℃--HRC:48-52、工作溫度800℃--HRC:38-42典型應用領域、工況及部分,煉鐵、煉焦、燒潔、水泥等工作領域存在高溫磨損的機械設備。
用途:用于堆焊高溫工件下服役的燒潔單輥破碎機齒冠篦板及高爐旋轉布料溜槽,耐磨效果顯著。