ASTM A333 (ASME S/A-333) are standard specification for seamless and welded steel pipe for low-temperature service and other applications with required notch toughness. 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, and 11.

Standard: ASTM A333/ A333M
Grade: Grade 1, Grade 3, Grade 4, Grade 6, Grade 7, Grade 7, Grade 8, Grade 9, Grade 10 and Grade 11
OD: NPS 1/8 inch to NPS 20 inch, 10.13mm to 1219mm
WT wall thickness: SCH 10, SCH 20, SCH STD, SCH 40, SCH 80, to SCH160, SCHXX; 1.24mm up to 1 inch, 25.4mm
Range of length: 20ft to 40ft, 5.8m to 11.8m, 6m to 12m.
Ends procession: Plain end, beveled, threaded

ASTM A333 Chemical Composition Requirements

For each reduction of 0.01% carbon below 0.30%, an increase of 0.05% manganese above 1.06% would be permitted to a maximum of 1.35% manganese. When Grade 6 is ordered under this specification, supplying an alloy grade that specifically requires the addition of any element other than those listed for the ordered grade is not permitted. However, the addition of elements required for the deoxidation of the steel is permitted.

Minimum Yield/Tensile