Hot Search: Welding electrodes for carbon steel Welding electrodes for stainless steel
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| D517 | According with GB EDCr-B-15 | ||||||||
| Introduction: D517 is a kind of 2Cr13 valve surfacing electrode with low-hydrogen natrium type coating. DCRP (Direct Current Reversed Polarity). The weld metal is 2Cr13 martensitic high-chrome steel. The surfacing layer can be hardened in the air. Generally it does not need heat treatment. It has uniform hardness. It can also be softened under 750-800℃. When heated to 950-1000℃, it can be hardened again by air cooling or oil quenching. | |||||||||
| Uses: D517 is a kind of universal electrode used for surface overlaying. The surfacing layer is harder, more wear-resistant and more intractable than D502. Used for surfacing carbon steel or low-alloy steel axles, valves for overheated steam, blades of mixers, blades of screw conveyers, etc. | |||||||||
| Chemical Composition of Deposited Metal (%)
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| Hardness of Surfacing Layer:（Cooled in the Air after Welding）HRC≥45（Softening-resistant to500℃） | |||||||||
| Reference Current(DC+)
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| Instructions: 1.The electrodes must be baked under 300-350℃ for an hour before welding. 2.The work pieces should be preheated to over 300℃ before welding, and different heat treatment after welding may produce corresponding hardness. | |||||||||
| D517 | According with GB EDCr-B-15 | ||||||||
| Introduction: D517 is a kind of 2Cr13 valve surfacing electrode with low-hydrogen natrium type coating. DCRP (Direct Current Reversed Polarity). The weld metal is 2Cr13 martensitic high-chrome steel. The surfacing layer can be hardened in the air. Generally it does not need heat treatment. It has uniform hardness. It can also be softened under 750-800℃. When heated to 950-1000℃, it can be hardened again by air cooling or oil quenching. | |||||||||
| Uses: D517 is a kind of universal electrode used for surface overlaying. The surfacing layer is harder, more wear-resistant and more intractable than D502. Used for surfacing carbon steel or low-alloy steel axles, valves for overheated steam, blades of mixers, blades of screw conveyers, etc. | |||||||||
| Chemical Composition of Deposited Metal (%)
| |||||||||
| Hardness of Surfacing Layer:（Cooled in the Air after Welding）HRC≥45（Softening-resistant to500℃） | |||||||||
| Reference Current(DC+)
| |||||||||
| Instructions: 1.The electrodes must be baked under 300-350℃ for an hour before welding. 2.The work pieces should be preheated to over 300℃ before welding, and different heat treatment after welding may produce corresponding hardness. | |||||||||
