ASTM A333 (SA333) is the standard specification for seamless and welded steel pipe suitable for cryogenic service and other applications with required notch toughness.
ASTM A333 Grade 6 Pipe - Common Grade
ASTM A333 Grade 6 pipe is a common grade for cryogenic applications.
gnee supplies ASTM A333 pipe that meets the following conditions:
Standard: ASTM A333/A333M
Grade: 1st grade, 3rd grade, 4th grade, 6th grade, 7th grade, 7th grade, 8th grade, 9th grade, 10th grade, 11th grade
Outside diameter: NPS 1/8" to NPS 20", 10.13mm to 1219mm
WT Wall Thickness: SCH 10, SCH 20, SCH STD, SCH 40, SCH 80, SCH160, SCHXX; 1.24mm to 1 inch, 25.4mm
Length range: 20ft to 40ft, 5.8m to 11.8m, 6m to 12m.
End processing: plain end, bevel, thread
Seamless and welded fabrication types
The standard includes welded (ERW) and seamless fabrication types. Materials include carbon steel and alloy steel.
How many grades are there in A333 pipes?
This standard has a total of 9 levels, namely level 1, level 3, level 4, level 6, level 7, level 8, level 9, level 10, and level 11.
Size standard
The pipe complies with nominal size standard ASME B36.10M. (NPS or average thickness outside diameter and gauge number)
Special sizes are also available upon customer request.
ASTM A333 Pipe Chemical Composition

Mechanical Properties

Impact Test Value For ASTM A333 Grade 3, 6, 7, 9, 10 Pipe
|
Speciman Size, mm |
Minimum Average Impact Value for Three Specimens |
Minimum Impact value for One Specimen |
||
|---|---|---|---|---|
|
10 by 10 |
13 ft/lbf |
18 J |
10 ft/lbf |
14 J |
|
10 by 7.5 |
10 ft/lbf |
14 J |
8 ft/lbf |
11 J |
|
10 by 6.75 |
9 ft/lbf |
12 J |
7 ft/lbf |
9 J |
|
10 by 5 |
7 ft/lbf |
9 J |
5 ft/lbf |
7 J |
|
10 by 3.33 |
5 ft/lbf |
7 J |
3 ft/lbf |
4 J |
|
10 by 2.5 |
4 ft/lbf |
5 J |
3 ft/lbf |
4 J |
Impact Test Temperature
|
Grade |
Minimum Impact Test Temperature |
Minimum Impact Test Temperature |
|---|---|---|
|
Grade 1 |
-50 ℉ |
-45 ℃ |
|
Grade 3 |
-150 ℉ |
-100 ℃ |
|
Grade 4 |
-150 ℉ |
-100 ℃ |
|
Grade 6 |
-50 ℉ |
-45 ℃ |
|
Grade 7 |
-100 ℉ |
-75 ℃ |
|
Grade 8 |
-320 ℉ |
-195 ℃ |
|
Grade 9 |
-100 ℉ |
-75 ℃ |
|
Grade 10 |
-75 ℉ |
-60 ℃ |
|
Grade 11 |
-320℉ |
-195 ℃ |





