Tag Archives: GM

GM Material Specification: EMS-99 Steel Tubing – Copper Brazed

1. Standard & Practices: To comply with all requirements of ASTM A254 2. Hardness: (On ID 90 degree from Seam) Rockwell 30T 55 Maximum. 3. Flatten & Bend Test: A section of the tubing 2-1/2″ minimum long shall stand being flattened between parallel plates until the inside walls are in contact. The flattened section shall […]