Round HSS Essentials
• As API 5L is intended for use as pipelines in the transport of petroleum and natural gas, the tolerances and finishes that are expected for building products do not apply. API 5L is similar to ASTM A53 in that they are both hydrostatically tested; however, API 5L material is of a much higher quality as it is Handrails HSS1.9 x0.180 x0.145 ...