ASTM A333 (ASME S/A-333) Pipe grades permit low temperature service. This specification covers nominal (average) walled pipe almost exclusively in seamless. Several grades of ferritic steel are included. Some product sizes may not be available under this specification because heavier wall thicknesses have an adverse effect on low-temperature impact properties. A333 pipe is furnished to nine different grades designated by numbers 1, 3, 4, 6, 7, 8, 9, 10, & 11. Discussed herein are Grades 1 and 6.
U.S. Steel Pipe supplies a full range of ASTM A333 (ASME S/A 333)
Sizes
1/4” Nominal to 24”O.D.
Wall Thickness – Schedule 10 through XXH
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CVN Impact (Charpy) Test :
Minimum Impact Test Temperature
| Grade 1 | -50 (F) | -45 (C) |
|---|---|---|
| Grade 6 | -50 (F) | -45 (C) |
Heat Treatment:
Grades 1 and 6 shall be heat treated to control their microstructure.
(Note: This is summarized information from ASME Specification A333. Please refer to the specific Standard or Specification or contact us for more details.)