A333 Low-temperature Alloy Steel Pipes
Tubes For Low-Temperature Service
Suitable for low temperature( -45℃～-195℃) pressure vessel pipes and heat exchanger pipes.
Standard：GB/T18984-2003、ASTM A333
Material：16MnDG、10MnDG、Q345D, Q345E
ASTM A333-Grade1、Grade3、Grade4、Grade6、Grade7、Grade8、Grade9、Grade10、Grade11
Alloy Steel Tube ASTM A333
ASTM A333 (ASME S/A333) 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.
Material Standard：ASTM A333
Main Grades：Grade 3, Grade 6, Grade 8
Application: used at low-temperatures.
Size
NPS 1/4" - 24"
Schedules 10 through 160, STD, XH and XXH
|
Item |
Grade |
Size Range |
Standard |
||
|
OD(mm) |
WT (mm) |
Length/m |
|||
|
1 |
A333 Gr.6
|
10～127 |
1～20 |
6～12.0 |
ASTM A333
|
|
42～114.3 |
3.5～6 |
6～12.2 |
|||
|
42～114.3 |
6～12 |
6～12.2 |
|||
|
114.3～180 |
3.8～8 |
6～12.2 |
|||
|
114.3～180 |
8～22 |
6～12.2 |
|||
|
68～180 |
10～14 |
6～12.2 |
|||
|
69～254 |
14～55 |
6～12.2 |
|||
|
140～340 |
6～8 |
6～12.2 |
|||
|
140～368 |
8～42 |
6～12.2 |
|||
|
318～720 |
14～50 |
4～12.5 |
|||
|
2 |
A333 Gr.6 |
42～114.3 |
3.5～12 |
6～12.2 |
|
|
114.3～180 |
3.8～22 |
6～12.2 |
|||
|
68～254 |
10～40 |
6～12.2 |
|||
|
140～368 |
6～40 |
6～12.2 |
|||
|
318～720 |
14～40 |
4～12.5 |
|||
|
140～368 |
6～25 |
6～12.2 |
|||
|
318～720 |
14～25 |
4～12.5 |
|||
|
Item |
Grade |
Size Range |
Standard |
||
|
OD (mm) |
WT (mm) |
Length (m) |
|||
|
1 |
16MnDG |
10～127 |
1～20 |
6～12.0 |
GB/T 18984 |
|
42～114.3 |
3.5～12 |
6～12.2 |
|||
|
114.3～180 |
3.8～22 |
6～12.2 |
|||
|
68～254 |
10～55 |
6～12.2 |
|||
|
140～368 |
6～42 |
6～12.2 |
|||
|
318～720 |
14～120 |
4～12.5 |
|||
Impact Temperature
|
Grade |
Min. Impact Test Temp. |
|
|
℉ |
℃ |
|
|
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 |
Mechanical Properties
|
Standard |
Grade |
T.S (MPa) |
Y.S (MPa) |
Elongation（％） |
|
|
Longitudinal |
Horizontal |
||||
|
ASTM A333 |
Grade 1 |
≥380 |
≥205 |
≥35 |
≥25 |
|
Grade 3 |
≥450 |
≥240 |
≥30 |
≥20 |
|
|
Grade 4 |
≥415 |
≥240 |
≥30 |
≥16.5 |
|
|
Grade 6 |
≥415 |
≥240 |
≥30 |
≥16.5 |
|
|
Grade 7 |
≥450 |
≥240 |
≥30 |
≥22 |
|
|
Grade 8 |
≥690 |
≥515 |
≥22 |
|
|
|
Grade 9 |
≥435 |
≥315 |
≥28 |
|
|
|
Grade 10 |
≥550 |
≥450 |
≥22 |
|
|
|
Grade 11 |
≥450 |
≥240 |
≥18 |
|
|
Chemical Composition
|
Standard |
Grade |
Chemical Composition(%) |
||||||||||
|
C |
Si |
Mn |
P |
S |
Cr |
Ni |
Cu |
Mo |
V |
Al |
||
|
ASTM A333 |
Grade 1 |
≤0.30 |
|
0.40～1.06 |
≤0.025 |
≤0.025 |
|
|
|
|
|
|
|
Grade 3 |
≤0.19 |
0.18～0.37 |
0.31～0.64 |
≤0.025 |
≤0.025 |
|
3.18～3.82 |
|
|
|
|
|
|
Grade 4 |
≤0.12 |
0.18～0.37 |
0.50～1.05 |
≤0.025 |
≤0.025 |
0.44～1.01 |
0.47～0.98 |
0.40～0.75 |
|
|
0.04～0.30 |
|
|
Grade 6 |
≤0.30 |
≥0.10 |
0.29～1.06 |
≤0.025 |
≤0.025 |
|
|
|
|
|
|
|
|
Grade 7 |
≤0.19 |
0.13～0.32 |
≤0.90 |
≤0.025 |
≤0.025 |
|
2.03～2.57 |
|
|
|
|
|
|
Grade 8 |
≤0.13 |
0.13～0.32 |
≤0.90 |
≤0.025 |
≤0.025 |
|
8.40～9.60 |
|
|
|
|
|
|
Grade 9 |
≤0.20 |
|
0.40～1.06 |
≤0.025 |
≤0.025 |
|
1.60～2.24 |
0.75～1.25 |
|
|
|
|
|
Grade 10 |
≤0.20 |
0.10～0.35 |
1.15～1.50 |
≤0.03 |
≤0.015 |
≤0.15 |
≤0.25 |
≤0.015 |
≤0.50 |
≤0.12 |
≤0.06 |
|
|
Grade 11 |
≤0.10 |
≤0.35 |
≤0.6 |
≤0.025 |
≤0.025 |
≤0.50 |
35.0～37.0 |
|
≤0.50 |
|
|
|
Scanning and friends
