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Trade-
Mark
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Equivalent to China Standard
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Characteristics & application
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Equivalent to AWS
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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¡A­@¼ö¡B­@»k¡B­@¿i¡C°ï²k°ª·Å¤u¥ó¦p¼ö°Å¤Á¤M¤b
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¡A­@¼ö¡B­@»k¡B­@¿i¡C°ï²k°ª·Å¤u¥ó¦p¤º¿U¾÷»Ö
ECoCr-B
D 822
 
HRc≥53. Resistance to Wear and heat, bad shock resistance. Hardfacing of rotating blade wheel of boiler.
HRc≥53¡A­@¼ö¡B­@¿i¡A¦ý§Ü½ÄÀ»©Ê®t¡C°ï²kÁçÄl±ÛÂอ½ü
 
D 832
EDCoCr-C-03
HRc≥50. Wear and heat resistance. Hardfacing of high temperature part such as hot-rolling guided way.
HRc≥50¡A­@¼ö¡B­@¿i¡C°ï²k°ª·Å¤u¥ó¦p¼öªî¾É­y
ECoCr-C
D 842
EDCoCr-D-03
HRc28-38. Corrosion and thermo-fatigue resistance, work harding. Hardfacing of hot forging die.
HRc28-38¡A­@»k¡B§Ü¼ö¯h³Ò¡A¨ã¦³¥[¤uµw¤Æ©Ê¡C°ï²k¼öÁë¼Ò
 

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   C-0.70¡ã1.40 Si≤2.0 Mn≤2.0 Cr-25.0¡ã32.0 Fe≤4.0 W-3.0¡ã6.0 ¨ä¥L≤4.0 Co-¾l¶q
°ï²k¼hµw«×HRC≥40

D812¹W°ò°ï²k²k±ø
D812¹W»ÌÂë¦Xª÷²kªäªº¹W°ò°ï²k²k±ø¡A±Ä¥Îª½¬y¤Ï±µ¡A°ï²kª÷Äݦb650¢J¤u§@¤´¯à«O«ù¨}¦nªº­@¿i©Ê©M­@»k©Ê¡A¥Î©ó°ª·Å°ªÀ£»Öªù¡B°ªÀ£¬¦ªº¶b®Mµ©©M¤ºÅ¨®Mµ©¥H¤Î¤Æ×÷³]³Æªº±Ù¤M¤b¤fµ¥
   º²¼Åª÷ÄݤƾǦ¨¤À/%
   C-1.00¡ã1.70 Si≤2.00 Mn≤2.00 Cr-25.0¡ã32.0 Fe≤5.0 W-7.0¡ã10.0 ¨ä¥L≤4.0 Co-¾l¶q
°ï²k¼hµw«×HRC≥44

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   ²kÁ_ª÷ÄݤƾǦ¨¤À¡]¢H¡^
   C--1.75¡ã3.0 Cr--25.0¡ã33.0 W--11.0¡ã19.0 Mn--≤2.0 Si--≤2.0 Fe--≤5.0 Co--¾l¶q ¨ä¥LÁ`¶q≤4.0
   °ï²k¼hµw«×HRC≥53
   °Ñ¦Ò¹q¬y¡G
   ³W®æφ¡]mm¡^ 4.0 5.0 6.0
   ¹q¬y¡]A¡^ 120¡ã160 140¡ã190 150¡ã210

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   C Si Mn Cr Fe W ¨ä¥L Co
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   °ï²k¼hµw«×HRC28~35

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