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.
-
Specification
-
NPS
(in)Outside Diameter
(in)ASTM A333 Grade 6 Carbon Steel Seamless Pipes Schedule
SCH 10
SCH 20
SCH 30
SCH STD
SCH 40
SCH 60
SCH XS
SCH 80
SCH 100
SCH 120
SCH 140
SCH 160
SCH XXS
Wall Thickness (in)
1/8
0.405
0.068
0.068
0.095
0.095
1/4
0.540
0.088
0.088
0.119
0.119
3/8
0.675
0.091
0.091
0.126
0.126
1/2
0.840
0.109
0.109
0.147
0.147
0.187
0.294
3/4
1.050
0.113
0.113
0.154
0.154
0.219
0.308
1
1.315
0.133
0.133
0.179
0.179
0.250
0.358
1 1/4
1.660
0.140
0.140
0.191
0.191
0.250
0.382
1 1/2
1.900
0.145
0.145
0.200
0.200
0.281
0.400
2
2.375
0.154
0.154
0.218
0.218
0.344
0.436
2 1/2
2.875
0.203
0.203
0.276
0.276
0.375
0.552
3
3.500
0.216
0.216
0.300
0.300
0.438
0.600
3 1/2
4.000
0.226
0.226
0.318
0.318
4
4.500
0.237
0.237
0.337
0.337
0.438
0.531
0.674
5
5.563
0.258
0.258
0.375
0.375
0.500
0.625
0.750
6
6.625
0.280
0.280
0.432
0.432
0.562
0.719
0.864
8
8.625
0.250
0.277
0.322
0.322
0.406
0.500
0.500
0.594
0.719
0.812
0.906
0.875
10
10.750
0.250
0.307
0.365
0.365
0.500
0.500
0.594
0.719
0.844
1.000
1.125
1.000
12
12.750
0.250
0.330
0.375
0.406
0.562
0.500
0.688
0.844
1.000
1.125
1.312
1.000
14
14.000
0.250
0.312
0.375
0.375
0.438
0.594
0.500
0.750
0.938
1.094
1.250
1.406
16
16.000
0.250
0.312
0.375
0.375
0.500
0.656
0.500
0.844
1.031
1.219
1.438
1.594
18
18.000
0.250
0.312
0.438
0.375
0.562
0.750
0.500
0.938
1.156
1.375
1.562
1.781
20
20.000
0.250
0.375
0.500
0.375
0.594
0.812
0.500
1.031
1.281
1.500
1.750
1.969
22
22.000
0.250
0.375
0.500
0.375
0.875
0.500
1.125
1.375
1.625
1.875
2.125
24
24.000
0.250
0.375
0.562
0.375
0.688
0.969
0.500
1.219
1.531
1.812
2.062
2.344
30
30.000
0.312
0.500
0.625
0.375
0.500
32
32.000
0.312
0.500
0.625
0.375
0.688
34
34.000
0.312
0.500
0.625
0.375
0.688
36
36.000
0.312
0.500
0.625
0.375
0.750
42
42.000
0.500
0.625
0.375
0.750
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