Steel, Corrosion and Heat-Resistant, Welded and Drawn or Seamless and Drawn Tubing 9.0Mn - 20Cr - 6.5Ni - 0.28N High-Pressure Hydraulic
|Publication Date:||1 April 2007|
This specification covers a corrosion and heat-resistant steel in the form of welded and drawn or seamless and drawn tubing.
This tubing has been used typically for parts, such as fluid lines, subject to high pressures and requiring corrosion resistance, but usage is not limited to such applications. Tubing has good oxidation resistance up to 1100 °F (593 °C).
Tubing, covered by this specification, is classified by form of fabrication as follows:
Type 1 - Welded and drawn
Type 2 - Seamless and drawn
If no type is specified, Type 1 shall be supplied.
Tubing, covered by this specification, is classified by quality evaluation as follows:
Class 1 - 0.125 inch (3.18 mm) length Ultrasonic Calibration
Class 2 - 0.060 inch (1.52 mm) length Ultrasonic Calibration
Class 3 - Ultrasonic testing not required
If no class or Class 1 is specified, Class 1 or Class 2 may be supplied. If Class 3 is specified, any of the three classes may be supplied.