ASTM A53 - 黑色和热浸镀锌焊接及无缝钢管规范
ASTM A53 - Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless
Chemical Compositions（max%）
Grade
C
Mn
P
S
Cr
Cu
Mo
Ni
V
Type S (seamless pipe)
A
0.25
0.95
0.05
0.045
0.40
0.40
0.15
0.40
0.08
B
0.30
1.20
0.05
0.045
0.40
0.40
0.15
0.40
0.08
Type E (electric-resistance-welded)
A
0.25
0.95
0.05
0.045
0.40
0.50
0.15
0.40
0.08
B
0.30
1.20
0.05
0.045
0.40
0.50
0.15
0.40
0.08
Type F (furnace-welded pipe)
A
0.30
1.20
0.05
0.045
0.40
0.40
0.15
0.40
0.08
Note:
The sum of Cu,
Ni, Cr, Mo and V shall not exceed 1.00%.
Tensile Requirements (min)
Grade
Tensile
strength psi [MPa]
Yield
strength psi [MPa]
Elongation in 2
in. or 50 mm, %
A
48000 [330]
30000 [205]
(Note 1, 2)
B
60000 [415]
35000 [240]
Note:
1)The minimum
elongation in2 in. [50 mm] shall be that determined by the
following equation:
e = 625 000
[1940] A0.2/U 0.9
where:
e = minimum elongation in2
in. or50 mmin percent, rounded to the nearest percent,
A = the lesser of0.75 in.2 [500 mm2] and the cross-sectional area of
the tension test specimen,
calculated using the specified outside diameter of the pipe, or the nominal
width of the tension test specimen and
the specified wall thickness of the pipe, with the calculated value rounded to
the nearest0.01 in.2 [1 mm2], and
U = specified minimum tensile strength, psi [MPa].
2)See below table for the minimum elongation values that are required for
various combinations of tension test specimen size and specified minimum
tensile strength.
| Area, A, mm2 | Specified Wall Thickness, mm | Elongation in 50 mm, min, % | |||
| Tension Test Specimen | Specified Minimum Tensile Strength, Mpa | ||||
| 19-mm Specimen | 25-mm Specimen | 38-mm Specimen | 330 | 415 | |
| 500 and greater | 26.3 and greater | 20.0 and greater | 13.2 and greater | 36 | 30 |
| 480-499 | 25.3-26.2 | 19.2-19.9 | 12.7-13.1 | 36 | 30 |
| 460-479 | 24.2-25.2 | 18.4-19.1 | 12.1-12.6 | 36 | 29 |
| 440-459 | 23.2-24.1 | 17.6-18.3 | 11.6-12.0 | 36 | 29 |
| 420-439 | 22.1-23.1 | 16.8-17.5 | 11.1-11.5 | 35 | 29 |
| 400-419 | 21.1-22.0 | 16.0-16.7 | 10.6-11.0 | 35 | 29 |
| 380-399 | 20.0-21.0 | 15.2-15.9 | 10.0-10.5 | 35 | 28 |
| 360-379 | 19.0-19.9 | 14.4-15.0 | 9.5-9.9 | 34 | 28 |
| 340-359 | 17.9-18.9 | 13.6-14.3 | 9.0-9.4 | 34 | 28 |
| 320-339 | 16.9-17.8 | 12.8-13.5 | 8.5-8.9 | 34 | 27 |
| 300-319 | 15.8-16.8 | 12.0-12.7 | 7.9-8.4 | 33 | 27 |
| 280-299 | 14.8-15.7 | 11.2-11.9 | 7.4-7.8 | 33 | 27 |
| 260-279 | 13.7-14.7 | 10.4-11.1 | 6.9-7.3 | 32 | 26 |
| 240-259 | 12.7-13.6 | 9.6-10.3 | 6.4-6.8 | 32 | 26 |
| 220-239 | 11.6-12.6 | 8.8-9.5 | 5.8-6.3 | 31 | 26 |
| 200-219 | 10.5-11.5 | 8.0-8.7 | 5.3-5.7 | 31 | 25 |
| 190-199 | 10.0-10.4 | 7.6-7.9 | 5.0-5.2 | 30 | 25 |
| 180-189 | 9.5-9.9 | 7.2-7.5 | 4.8-4.9 | 30 | 24 |
| 170-179 | 9.0-9.4 | 6.8-7.1 | 4.5-4.7 | 30 | 24 |
| 160-169 | 8.4-8.9 | 6.4-6.7 | 4.2-4.4 | 29 | 24 |
| 150-159 | 7.9-8.3 | 6.0-6.3 | 4.0-4.1 | 29 | 24 |
| 140-149 | 7.4-7.8 | 5.6-5.9 | 3.7-3.9 | 29 | 23 |
| 130-139 | 6.9-7.3 | 5.2-5.5 | 3.5-3.6 | 28 | 23 |
| 120-129 | 6.3-6.8 | 4.8-5.1 | 3.2-3.4 | 28 | 23 |
| 110-119 | 5.8-6.2 | 4.4-4.7 | 2.9-3.1 | 27 | 22 |
| 100-109 | 5.3-5.7 | 4.0-4.3 | 2.7-2.8 | 27 | 22 |
| 90-99 | 4.8-5.2 | 3.6-3.9 | 2.4-2.6 | 26 | 21 |
| 80-89 | 4.2-4.7 | 3.2-3.5 | 2.1-2.3 | 26 | 21 |
| 70-79 | 3.7-4.1 | 2.8-3.1 | 1.9-2.0 | 25 | 21 |
| 60-69 | 3.2-3.6 | 2.4-2.7 | 1.6-1.8 | 24 | 20 |
| 50-59 | 2.7-3.1 | 2.0-2.3 | … | 24 | 19 |
| 40-49 | 2.1-2.6 | 1.6-1.9 | … | 23 | 19 |
| 30-39 | 1.6-2.0 | … | … | 22 | 18 |