Threaded flanges is a type of flange that has internal threads on its bore, allowing it to be screwed onto a pipe or fitting with external threads. Threaded flanges are commonly used in low-pressure piping systems and are easy to install and remove without the need for welding. They are also useful in situations where the pipe or fitting being connected needs to be easily disconnected for maintenance or repair. Threaded flanges are available in a variety of materials, such as carbon steel, stainless steel, and brass, and can be used with different types of piping systems, including gas, water, and oil. 
	
 
	
 
	
 
	
		
			
				
					
						Standard
					
				
				
					
						 
					
				
			
			
				
					
						ASTM A105 
					
				
				
					
						For Carbon Steel Forgings for Piping Applications 
					
				
			
			
				
					
						ASTM A181 
					
				
				
					
						For Carbon Steel Forgings for general-purpose piping ; GR.60,GR70…