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CEWELD® 4820 AC is a cored wire alloyed, AC weldable stick electrode (Preferred =+) for production and repair welding on similar or similar, corrosion and heat resistant steels and steel castings. For furnaces requiring improved resistance to reducing and oxidizing sulfurous gases as well as for fi nal passes of weld joints. Scaling resistant up to 1100ºC.
CEWELD® 4820 AC is a cored wire alloyed, AC weldable stick electrode (Preferred =+) for production and repair welding on similar or similar, corrosion and heat resistant steels and steel castings. For furnaces requiring improved resistance to reducing and oxidizing sulfurous gases as well as for fi nal passes of weld joints. Scaling resistant up to 1100ºC.
CEWELD® 4820 AC is scale-resistant on the same base material and, due to its low nickel content, is resistant to attack by sulphur gases and oxidizing combustion gases up to 1100ºC. When welding CEWELD® 4820 AC, a low heat input is required, as alloys of this chemistry tend to become brittle at 600-800°C. The preheating temperature for similar and dissimilar steels should be 100 - 200ºC, depending on composition and material thickness. The interpass temperature should not exceed 300°C.
Mo-free 25Cr(Ni) alloys
1.4340, 1.4710, 1.4745, 1.4746, 1.4712, 1.4762, 1.4713, 1.4773, 1.4722, 1.4776, 1.4724, 1.4820, 1.4729, 1.4821, 1.4740, 1.4822, 1.4742, 1.4823
GX40CrNi27-4, G-X30CrSi6, G-X40CrSi23, X10CrSi6 502, X10CrAl24, X10CrAl7, X8Cr30, X10CrSi13, G-X40CrSi29, X8CrTi25, X10CrAl13, G-X12 CrSi 26 5, G-X40CrSi13, X20 CrNiSi 25 4, G-X40CrSi17, G-X40CrNi 25 4, X10CrAl18, G-X40CrNiSi 27 4,
AISI 327, 442, 446, ASTM A 297 HC
UNS S44200, 44600, J92605, J93005, J92605
| Heat Treatment |
RP0,2 (MPa) |
Rm (MPa) |
A5 (%) |
Hardness |
|---|---|---|---|---|
| As Welded | 500 | 700 | 20 | 180 HB |
