J50 heat-resistant steel wire 

 Heat-resistant steel electrode Series | heat-resistant steel in high temperature chemical stability and sufficient strength, and the ability of resistance to gas erosion. According to chemical composition and microstructure, heat-resistant steel can be divided into pearlite steel, martensitic steel, ferritic steel and austenitic steel. Pearlitic heat resistant steel and martensitic steel in electric arc welding, require the use of different types of welding electrodes. General may be different steel grades and different temperatures were selected. 
 Heat-resistant steel electrode | heat-resistant steel wire | pearlitic heat-resistant steel electrode | plant-specific electrodes | welding corrosion-resistant | heat welding | heat-resistant steel rod model 

 R102 heat-resistant steel welding rod, 
 R107 heat-resistant steel welding rod, 
 R106 heat-resistant steel electrode 
 Characteristics and uses; R102 titanium calcium type pearlite with 0.5% Mo heat resistant steel electrodes, AC and DC. 

 R107 is a low hydrogen type electrode of similar, using DC reverse, can be all-position welding. Preheating before welding 90-110 ℃, after welding to be tempered by 605-635 ℃. R106 can be AC and DC. Welding temperature can be below 510 ℃ plant boiler tubes, such as 15Mo and other steel; also ordinary low-alloy steel welding. 

 R200 heat-resistant steel welding rod, 
 R202 heat-resistant steel welding rod, 
 R207 heat-resistant steel welding characteristics and uses; R200 is a type of titanium oxide coated electrodes with good performance and resistance to cold plastic holes. R202 titanium calcium type electrode. R207 is a low hydrogen type coated electrode. Three electrodes are suitable for all position welding, preheating before welding to be 160-200 ℃, after welding, to go through 605-635 ℃ tempered. Can be used for welding temperature below 510 ℃ heat resistant steel pearlite, including steam pipes, superheater piping. 

 R302 heat-resistant steel welding rod, 
 R307 heat-resistant steel electrode characteristics and uses; R302 titanium calcium type electrode. R307 is a low hydrogen sodium type coating. Can be all-position welding, preheating before welding to be 160-200 ℃, after welding, to go through 675-705 ℃ tempered. Can be used for welding at 520 ℃ temperature below 1% Cr-0.5% Mo heat resistant steel, such as boiler tubes, pressure vessels, oil refining equipment, but the R302 is mainly used to cover up welding electrode.