ASTM A210-Standard Specification for Seamless Medium-Carbon Steel Boiler and Superheater Tubes.
Read moreASTM A519-Standard Specification for Seamless Carbon and Alloy Steel Mechanical Tubing
Read moreASTM A333-Standard Specification for Seamless and Welded Steel Pipe for Low-Temperature Service and Other Applications with Required Notch Toughness.
Read moreSpiral steel pipe type is made by strip, seamless steel tube type is made by round steel, difference is very big, production process different:spiral tube is to use strip steel welding, can see the weld;
Read moreASTM A179-Standard Specification for Seamless Cold-Drawn Low-Carbon Steel Heat-Exchanger and Condenser Tubes
Read moreLongitudinal welded pipe is one of the welded pipes. Due to different production processes, longitudinal welded pipes can be divided into high-frequency longitudinal welded pipes and submerged arc welded longitudinal welded pipes
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