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AVESTA 253 MA is designed for welding the Outokumpu high temperature steel 253 MA. The steel as well as the consumable provides excellent properties at temperatures 1562-2012°F (850-1100°C). The resistance to carbon and nitrogen pick up at elevated temperatures is good. This is achieved, among other things, by alloying with Si and rare earth metals (REM). AVESTA 253 MA can also be used for welding the somewhat lower alloyed Outokumpu 153 MA. The comPOSTTTION of the consumable is balanced to ensure a crack resistant weld metal with a ferrite content of 3-10%.
Chemical comPOSTTTION (nominal) %
WELDING DIRECTIONS MIG welding of 253 MA is best performed using spray arc or pulsed arc. The weldability using short arc is somewhat limited and the welding of thin gauges <0.12” (<3 mm) and in?POSTTTION is best performed using pulsed arc. 253 MA has a tendency of getting a thick oxide layer during hot rolling and welding. Black plates as well as previous weld beads should be carefully brushed or ground prior to welding. The joint should be prepared with a sufficient root gap to ensure full penetration. Ar + 30% He or Ar + 30% He + 2.5% CO2. The helium addition improves the fluidity and gives a slightly wider penetration. Helium increases the energy in the arc and the heat should therefore be kept at a lower level than when welding without helium to compensate for the higher temperature in the arc. Addition of helium will increase the blackening slightly. |
Stock
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Form |
Specification |
Supply Form |
Others |
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Sheet |
Thickness?0.40-4.75mm?General Width?1000?1219?1500mm |
Whole Coil or piece of it |
Cold Annealed?Surface 2B?2E |
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Plate |
Thickness?4.76-60mm?Width?1500?2000?2500mm?Length?3000?6000?8000?8500mm?Under 10mm plate can be coiled? |
Whole Coil or piece of it |
Single hot rolling?Solid solution annealed state?Surface 1D |
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Belt |
Thickness?0.10-3.0mm?Width?50-500mm |
Whole Coil or Specified size |
Cold Annealed?Surface 2B?2E |
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Bar & Rod |
Rolled barΦ5-45mm?Length≤1500mm |
Polished Bar?circle?Square? |
Solution annealing,descaling |
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Forged barΦ26-245mm?Length≤4000mm |
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Weld tube |
Outer diameterΦ4.76-135mm?Wall Thickness0.25-4.00mm?Length?≤35000 mm |
Base on your requirement |
Use for PHE |
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Seamless Tube |
Outer diameterΦ3-114mm?Wall Thickness0.2-4.5mm |
Base on your requirement |
Use for PHE |
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Wire |
Outer diameterΦ0.1-13mm |
Base on your requirement |
Ni & Ni alloy, Ti & Ti alloy |
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Forged piece |
roundness and square alloy |
Base on your requirement |
Steel, Alloy |
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Flangs |
All kinds of Flangs |
Base on your requirement |
Steel, Alloy |
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Welding Material |
Coil wire Φ0.90mm/1.2mm/1.6mm |
Base on your requirement |
Certificate of Origin?America, Sweden, Britain, Germany, Austria, Italy, France. |
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Straight WireΦ1.2mm/1.6mm/2.4mm/3.2mm/4.0mm |
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Welding rodΦ2.4mm/3.2mm/4.0mm |
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Tube |
Elbow, three links, four links, different diameter size |
Base on your requirement |
Ni & Ni alloy, Ti & Ti alloy |
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Explosive bonded laminate |
Raw Sheet Thickness≥2mm |
Base on your requirement |
Ni & Ni alloy, Ti & Ti alloy |
898995850
