Product Type:Low temperature pipe,Low Temperature Alloy Steel Tube,Seamless Low temperature pipe,Carbon Steel Seamless Low Temperature
Specifiction:
Product Type:Low Temperature Pipe
Size:
Outer diameter(OD): 73-630mm
Wall thickness(WT): 6-35mm
LENGTH:Single Random, Double Random, Cut Length
Application:In Refineries, Power Plants, Boilers, Heat Exchangers, Condensers etc.
Pipe Standard:ASTM A333/ASME SA333
Heat Treatment:
Annealed: Bright Annealed,Spheroidize Annealed, Normalized, Stress Relieved, Cold Finished, Quenched And Tempered
1. ASTM A333 Chemical Composition Requirements
|
Chemical Composition of ASTM A333
|
|
Element
|
Grade 1, %
|
Grade 3, %
|
Grade 4, %
|
Grade 6, %
|
Grade 7, %
|
Grade 8, %
|
Grade 9, %
|
Grade 10, %
|
Grade 11, %
|
|
C
|
0.30
|
0.19
|
0.12
|
0.30
|
0.19
|
0.13
|
0.20
|
0.20
|
0.10
|
|
Mn
|
0.40–1.06
|
0.31–0.64
|
0.50–1.05
|
0.29–1.06
|
0.90
|
0.90
|
0.40–1.06
|
1.15–1.50
|
0.60
|
|
P
|
0.025
|
0.025
|
0.025
|
0.025
|
0.025
|
0.025
|
0.025
|
0.035
|
0.025
|
|
S
|
0.025
|
0.025
|
0.025
|
0.025
|
0.025
|
0.025
|
0.025
|
0.015
|
0.025
|
|
Si
|
...
|
0.18–0.37
|
0.08–0.37
|
0.10 min
|
0.13–0.32
|
0.13–0.32
|
...
|
0.10–0.35
|
0.35
|
|
Ni
|
...
|
3.18–3.82
|
0.47–0.98
|
0.40
|
2.03–2.57
|
8.40–9.60
|
1.60–2.24
|
0.25
|
35.0–37.0
|
|
Cr
|
...
|
...
|
0.44–1.01
|
0.30
|
...
|
...
|
...
|
0.15
|
0.50
|
|
Cu
|
...
|
...
|
0.40–0.75
|
0.40
|
...
|
...
|
0.75–1.25
|
0.15
|
...
|
|
Al
|
...
|
...
|
0.04–0.30
|
...
|
...
|
...
|
...
|
0.06
|
...
|
|
V
|
...
|
...
|
...
|
0.08
|
...
|
...
|
...
|
0.12
|
...
|
|
Cb
|
...
|
...
|
...
|
0.02
|
...
|
...
|
...
|
0.05
|
...
|
|
Mo
|
...
|
...
|
...
|
0.12
|
...
|
...
|
...
|
0.05
|
0.50
|
|
Co
|
...
|
...
|
...
|
...
|
...
|
...
|
...
|
...
|
0.50
|
*For Grade 1 and 6, each reduction of 0.01% C below 0.30%, an increase of 0.05 % Mn above 1.06 % would be permitted to a max. of 1.35%.
*For Grade 6, the limit for columbium may be increased up to 0.05 % on heat analysis and 0.06 % on product analysis.
*Generally, the carbon equivalent C.E = [C + Mn/6 + (Cr + Mo + V)/5 + (Ni + Cu)/15] shall not exceed 0.43% by heat analysis.
2. ASTM A333 Mechanical Properties
|
ASTM A333
|
Tensile Strength, min.
|
Yield Strength, min.
|
Elongation %, min.
|
|
Grade
|
psi
|
MPa
|
psi
|
MPa
|
Longitudinal
|
Transverse
|
|
Grade 1
|
55 000
|
380
|
30 000
|
205
|
35
|
25
|
|
Grade 3
|
65 000
|
450
|
35 000
|
240
|
30
|
20
|
|
Grade 4
|
60 000
|
415
|
35 000
|
240
|
30
|
16.5
|
|
Grade 6
|
60 000
|
415
|
35 000
|
240
|
30
|
16.5
|
|
Grade 7
|
65 000
|
450
|
35 000
|
240
|
30
|
22
|
|
Grade 8
|
100 000
|
690
|
75 000
|
515
|
22
|
...
|
|
Grade 9
|
63 000
|
435
|
46 000
|
315
|
28
|
...
|
|
Grade 10
|
80 000
|
550
|
65 000
|
450
|
22
|
...
|
|
Grade 11
|
65 000
|
450
|
35 000
|
240
|
18
|
...
|
*The elongation values are furnished on the basis of standard round 2 inch or 50 mm(or 4D) specimens.
*Elongation of Grade 11 is for all walls and small sizes tested in full section.
3. Charpy V-notch Impact Tests
|
Impact Requirements for Grades 1, 3, 4, 6, 7, 9, 10, and 11
|
|
Size of Specimen
|
*A
|
*B
|
|
mm
|
ft·lbf
|
J
|
ft·lbf
|
J
|
|
10 by 10
|
13
|
18
|
10
|
14
|
|
10 by 7.5
|
10
|
14
|
8
|
11
|
|
10 by 6.67
|
9
|
12
|
7
|
9
|
|
10 by 5
|
7
|
9
|
5
|
7
|
|
10 by 3.33
|
5
|
7
|
3
|
4
|
|
10 by 2.5
|
4
|
5
|
3
|
4
|
*A denotes minimum average notched bar impact value of each set of three specimens.
*B denotes minimum notched bar impact value of one specimen only of a set.
|
Minimum Impact Test Temperature of ASTM A333
|
|
Grade
|
°F
|
°C
|
|
1
|
-50
|
-45
|
|
3
|
-150
|
-100
|
|
4
|
-150
|
-100
|
|
6
|
-50
|
-45
|
|
7
|
-100
|
-75
|
|
8
|
-320
|
-195
|
|
9
|
-100
|
-75
|
|
10
|
-75
|
-60
|
|
11
|
-320
|
-195
|
* Impact tests specified for temperatures lower than 70 °F [20 °C] should be made with precautions.
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