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						Description and Applications | 
					
					
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						HR45 is an 
						electrode used for gas (oxygen-acetylene) welding for 
						mild steels. The electrode is coated with copper to 
						avoid rusting. It is applied in welding steels, which 
						are used for general constructions. | 
					
					
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						Typical 
						Chemical Composition of Weld Metal(%) | 
					
					
						
						
							
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								C | 
								
								Si | 
								
								Mn | 
								
								
								P | 
								
								
								S | 
								
								Cr | 
								
								
								Al | 
							 
							
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								0.07 | 
								
								0.02 | 
								
								
								
								0.45 | 
								
								
								
								0.010 | 
								
								
								
								0.010 | 
								
								0.05 | 
								
								0.002 | 
							 
						 
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						Size of Wire | 
					
					
						
						
							
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								 1.6 | 
								
								2.0 | 
								
								2.6 | 
								
								3.2 | 
								
								4.0 | 
								
								
								5.0 | 
							 
							
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								Length (mm) | 
								
								1000 | 
								
								1000 | 
								
								1000 | 
								
								1000 | 
								
								1000 | 
								
								1000 | 
							 
							 
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