| 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(dāng)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(cuò)的部位，如堆焊高溫高壓閥門及熱剪刀刃等。
熔敷金屬化學(xué)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(nèi)襯套以及化纖設(shè)備的斬刀刃口等。熔敷金屬化學(xué)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(yōu)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(zhuǎn)葉輪、粉碎機(jī)刃口、螺旋送料機(jī)等磨損部件的堆焊。
熔敷金屬化學(xué)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(cuò)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(xué)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(shí)經(jīng)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(xì)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(yīng)用領(lǐng)域、工況及部分，煉鐵、煉焦、燒潔、水泥等工作領(lǐng)域存在高溫磨損的機(jī)械設(shè)備。
用途：用于堆焊高溫工件下服役的燒潔單輥破碎機(jī)齒冠篦板及高爐旋轉(zhuǎn)布料溜槽，耐磨效果顯著。
