1. What is a high temperature alloy?
High-temperature alloys broadly refer to a type of alloy that is more resistant to high temperature than ordinary metal materials, and usually refers to a type of alloy with a long-term use temperature higher than 500℃. However, the commonly referred to as high-temperature alloy refers to a special type of alloy, such as the deformed high-temperature alloys such as GH2132, GH3128, GH3030, GH4169, etc., as well as cast high-temperature alloys, powder metallurgy high-temperature alloys, dispersion-strengthening high-temperature alloys, and intermetallic compound high-temperature materials.
2. What are high-temperature alloy welding wires and high-temperature alloy wires?
The high-temperature alloy wire used for welding refers to melted cold drawing wires such as arc welding and gas protective welding.
3. What are the reference technical standards for welding wires used for welding?
Sample sampling method and allowable chemical composition deviation for GB/T222 steel
Chemical analysis method of GB/T223 steel and alloy
General provisions on GB/T2103 wire acceptance, packaging, marking and quality certificates, etc.
GB/T14992 Classification and grade of high-temperature alloys and intermetallic compounds high-temperature alloy materials
GJB5307 Alloy Chemical Components Alloys for Aerospace
4. What is the difference in the smelting process of high-temperature alloy welding wire?
Generally, smelting is carried out in the following ways:
Electric arc furnace
Electric arc furnace + electroslag remelting
Arc furnace + vacuum self-consumption remelting
Double vacuum process
Non-vacuum induction furnace + vacuum self-consumption remelting
Non-vacuum induction furnace + electroslag remelting
More than a dozen different processes
5. Shanghai AVIC Group’s high-temperature alloy welding wire is usually supplied in a straight wire or a disc wire. There are a large amount of stocks, GH4169 welding wire, GH3128 welding wire, GH3030 welding wire, GH2132 welding wire, etc.
6. What are the supply statuses of high-temperature alloy welding wire?
Usually there are: cold pull state (hard state), semi-hard state, bright solid solution delivery, bright return delivery, solid solution + pickling state delivery
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