ASTM A333 (ASME S/A-333) welded and seamless pipe grades permit low temperature service. ASTM A333 (ASME S/A-333 low temperature pipes are furnished to nine different grades designated by numbers 1, 3, 4, 6, 7, 8, 9, 10, & 11. Discussed herein are Grades 1 and 6.
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.
ASTM A333 (ASME S/A-333) Low Temperature Pipe Available Sizes
Out Diameter: 1/4” Nominal to 24”
Wall Thickness: Schedule 10 through XXH
CVN Impact (Charpy) Test:
Minimum Impact Test Temperature
Grade 1 -50 (F) -45 (C)
Grade 6 -50 (F) -45 (C)
Chemical Requirements( %):
C Mn P S Si Cr Cu Mo Ni Cb V
Grade 1: 0.30 0.40-1.06 0.025 0.025 - - - - - - -
(Note: This is similar chemistry to A53/SA53)
Grade 6: 0.30 0.29-1.06 0.025 0.025 0.10 min 0.30 0.40 0.12 0.40 0.12, max 0.08 max
(Note: This is similar chemistry to A106/SA106)
If you are looking for ASTM A333 Grade 1 low temperature pipe or ASTM A333 Grade6 seamless steel pipe, please contact us.
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