鈷基焊條
Trade-
Mark
牌 號(hào) Equivalent to China Standard
相當(dāng)國(guó)標(biāo) Characteristics & application
特性和用途 Equivalent to AWS
相當(dāng)AWS
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.
HRc38-47,耐熱、耐蝕、耐磨。堆焊高溫工件如熱剪切刀刃 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.
HRc45-50,耐熱、耐蝕、耐磨。堆焊高溫工件如內(nèi)燃機(jī)閥 ECoCr-B
D 822 HRc≥53. Resistance to Wear and heat, bad shock resistance. Hardfacing of rotating blade wheel of boiler.
HRc≥53,耐熱、耐磨,但抗沖擊性差。堆焊鍋爐旋轉(zhuǎn)葉輪
D 832 EDCoCr-C-03 HRc≥50. Wear and heat resistance. Hardfacing of high temperature part such as hot-rolling guided way.
HRc≥50,耐熱、耐磨。堆焊高溫工件如熱軋導(dǎo)軌 ECoCr-C
D 842 EDCoCr-D-03 HRc28-38. Corrosion and thermo-fatigue resistance, work harding. Hardfacing of hot forging die.
HRc28-38,耐蝕、抗熱疲勞,具有加工硬化性。堆焊熱鍛模
D802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,用于要求在650℃左右工作仍能保持良好的耐磨性和耐腐蝕性的場(chǎng)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切刀刃等。
熔敷金屬化學(xué)成分/%
C-0.70~1.40 Si≤2.0 Mn≤2.0 Cr-25.0~32.0 Fe≤4.0 W-3.0~6.0 其他≤4.0 Co-余量
堆焊層硬度HRC≥40
D812鈷基堆焊焊條
D812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蝕性,用于高溫高壓閥門、高壓泵的軸套筒和內(nèi)襯套筒以及化釬設(shè)備的斬刀刃口等
熔敷金屬化學(xué)成分/%
C-1.00~1.70 Si≤2.00 Mn≤2.00 Cr-25.0~32.0 Fe≤5.0 W-7.0~10.0 其他≤4.0 Co-余量
堆焊層硬度HRC≥44
D822鈷基堆焊焊條 D822是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、耐熱和耐腐蝕性,在650℃高溫也能保持這些特性。用于牙輪鉆頭軸承、鍋爐的旋轉(zhuǎn)葉輪、粉碎
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