ERW tubing is produced at welding mills by welding the seams of steel coil strips, sheets or skelps. To create steel tubing, the steel strip is unwound from a coil and trimmed along the side to control the width and pre-condition the edge for final welding. The strip is then passed through several contoured rollers to cold-form the material into the desired shape. This can be round, square, or rectangular. The conditioned edges are forced together and then welded at extreme temperatures to create a uniform and secure union.
Drawn steel tubing is the process of pulling a steel product through a die, to create a steel tube with better dimensional tolerances than ERW tubing. The process to create drawn steel tubing starts much like ERW tubing, drawn steel is passed through a die to produce an accurate size and gauge in accordance with customer specifications. Some advantages of deep drawing over ERW are lower cost, better strength-to-weight ratio, and more complex geometric designs.
Further Processing:
Turned ground and polished (TG&P), painted, lacquer coated, galvanized.
Applications:
Construction, appliances, utility lines, furniture, oil & gas, and petroleum.
SIZE
1/8" DIA SCHD 40 & SCHD 80 – 8" DIA SCHD 40 & SCHD 80
LENGTH
21'
SIZE
1/4" OD X 0.68 ID – 24" OD X 22" ID
LENGTH
20'/24', 40'
SIZE
1/2" X 1/2" X 0.065" – 14" X 14" X 1/2"
LENGTH
20'/24', 40'
SIZE
1" X 1/2" X 0.065" – 20" X 12" X 1/2"
LENGTH
20'/24', 40'
| PRODUCT | SIZE | LENGTH |
|---|---|---|
| Pipe | 1/8" DIA SCHD 40 & SCHD 80 – 8" DIA SCHD 40 & SCHD 80 | 21' |
| Round Tubing | 1/4" OD X 0.68 ID – 24" OD X 22" ID | 20'/24', 40' |
| Square Tubing | 1/2" X 1/2" X 0.065" – 14" X 14" X 1/2" | 20'/24', 40' |
| Rectangular Tubing | 1" X 1/2" X 0.065" – 20" X 12" X 1/2" | 20'/24', 40' |