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High quality piping products from approved manufacturers.
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Always up to date. In this column you can find the steel pipe related articles, including industry trends, product standards and materials, and some technical guidelines.
|
SCOPE |
Steel Pipe Piling For Permanent, Structural Load-Carrying Member Or As A Shell To Form Cast-In-Place Concrete Piles. |
|
Specification |
ASTM A252, GRADES 2 AND 3/MODIFIED TO 50 KSI MIN. YIELD |
|
Manufacturing Process |
STRAIGHT-SEAM ELECTRIC RESISTANCE WELD (ERW) |
|
SIZE (OD) |
8.625, 10.750 and 12.750 |
|
GAUGE/WALL THICKNESS |
0.250, 0.313, 0.375 and 0.500 (nominal) |
|
STRENGTH/ELONGATION PROPERTIES |
YIELD: 50 KSI MIN., 60 KSI MIN., 75 KSI MIN., 80 KSI MIN. AIM TO. |
|
STRAIGHTNESS TOLERANCE |
1/8” X LENGTH (IN FEET), DIVIDED BY FIVE |
Astm A53 Is Published By The American Society For Testing And Materials (Astm)，Which Is A Standard Specification For Seamless And Welded Steel Pipes Designed For A Variety Of Applications. This Passage Is An Overview Of Astm A53 Seamless Steel Pipes, Read On To Learn More.
Grades Of A53 Steel Pipe:
Astm A53 Steel Pipes Come In Different Grades, With The Most Common Ones Being:
- Grade A: This Grade Is Intended For General Use And Is Not Intended For Pressure Or Structural Applications. It Is Often Used For Low-Pressure Plumbing And Air Distribution Systems.
- Grade B: Grade B Is The Most Commonly Used Grade And Is Suitable For A Range Of Applications, Including High-Pressure Systems, Water, And Other Fluids, As Well As Structural Applications. It Is More Robust Than Grade A.
Permissible Variations For A53 Steel Pipe:
- Wall Thickness: The Minimum Wall Thickness At Any Point Shall Not Be More Than 12.5% Under The Nominal Wall Thickness Specified.
Weights Per Foot Are Plus Or Minus 10%
- Outside Diameter: Outside Diameter At Any Point Shall Not Vary From Standard Specified More Than:
|
nps |
over |
under |
|
1-1/2 and smaller |
+1/64” |
-1/64” |
|
2 and larger |
+1% |
-1% |
Applications of a53 steel pipe:
- fluid transportation: these pipes are commonly used for the transportation of water, oil, gas, and other fluids in both high and low-pressure systems.
- structural use: astm a53 grade b steel pipes are used in structural applications, such as in the construction of buildings, bridges, and other infrastructure.
- mechanical and pressure applications: grade b pipes are suitable for applications where mechanical properties and pressure resistance are essential.
- fire protection: astm a53 pipes are often used for fire sprinkler systems.
- hvac (heating, ventilation, and air conditioning): they are utilized in hvac systems to transport air and other gases.
|
NOMINAL PIPE SIZE |
OD (mm) |
NOMINAL WALL THICKNESS
|
|||||||||||||
|
DN |
NB(inch) |
ASME |
SCH10 |
SCH20 |
SCH30 |
STD |
SCH40 |
SCH60 |
XS |
SCH80 |
SCH100 |
SCH120 |
SCH140 |
SCH160 |
XXS |
|
15 |
1/2" |
21.3 |
2.11 |
|
2.41 |
2.77 |
2.77 |
|
3.73 |
3.73 |
|
|
|
4.78 |
7.47 |
|
20 |
3/4" |
26.7 |
2.11 |
|
2.41 |
2.87 |
2.87 |
|
3.91 |
3.91 |
|
|
|
5.56 |
7.82 |
|
25 |
1" |
33.4 |
2.77 |
|
2.9 |
3.38 |
3.38 |
|
4.55 |
4.55 |
|
|
|
6.35 |
9.09 |
|
32 |
1.1/4" |
42.2 |
2.77 |
|
2.97 |
3.56 |
3.56 |
|
4.85 |
4.85 |
|
|
|
6.35 |
9.7 |
|
40 |
1.1/2" |
48.3 |
2.77 |
|
3.18 |
3.68 |
3.68 |
|
5.08 |
5.08 |
|
|
|
7.14 |
10.15 |
|
50 |
2" |
60.3 |
2.77 |
|
3.18 |
3.91 |
3.91 |
|
5.54 |
5.54 |
|
|
|
8.74 |
11.07 |
|
65 |
2.1/2" |
73 |
3.05 |
|
4.78 |
5.16 |
5.16 |
|
7.01 |
7.01 |
|
|
|
9.53 |
14.02 |
|
80 |
3" |
88.9 |
3.05 |
|
4.78 |
5.49 |
5.49 |
|
7.62 |
7.62 |
|
|
|
11.13 |
15.25 |
|
90 |
3.1/2" |
101.6 |
3.05 |
|
4.78 |
5.74 |
5.74 |
|
8.08 |
8.08 |
|
|
|
|
|
|
100 |
4" |
114.3 |
3.05 |
|
4.78 |
6.02 |
6.02 |
|
8.56 |
8.56 |
|
11.13 |
|
13.49 |
17.12 |
|
125 |
5" |
141.3 |
3.4 |
|
|
6.55 |
6.55 |
|
9.53 |
9.53 |
|
12.7 |
|
15.88 |
19.05 |
|
150 |
6" |
168.3 |
3.4 |
|
|
7.11 |
7.11 |
|
10.97 |
10.97 |
|
14.27 |
|
18.26 |
21.95 |
|
200 |
8" |
219.1 |
3.76 |
6.35 |
7.04 |
8.18 |
8.18 |
10.31 |
12.7 |
12.7 |
15.09 |
18.26 |
20.62 |
23.01 |
22.23 |
|
250 |
10" |
273 |
4.19 |
6.35 |
7.8 |
9.27 |
9.27 |
12.7 |
12.7 |
15.09 |
18.26 |
21.44 |
25.4 |
28.58 |
25.4 |
|
300 |
12" |
323.8 |
4.57 |
6.35 |
8.38 |
9.53 |
10.31 |
14.27 |
12.7 |
17.48 |
21.44 |
25.4 |
28.58 |
33.32 |
25.4 |
|
350 |
14" |
355.6 |
6.35 |
7.92 |
9.53 |
9.53 |
11.13 |
15.09 |
12.7 |
19.05 |
23.83 |
27.79 |
31.75 |
35.71 |
|
|
400 |
16" |
406.4 |
6.35 |
7.92 |
9.53 |
9.53 |
12.7 |
16.66 |
12.7 |
21.44 |
26.19 |
30.96 |
36.53 |
40.19 |
|
|
450 |
18" |
457.2 |
6.35 |
7.92 |
11.13 |
9.53 |
14.27 |
19.05 |
12.7 |
23.83 |
39.36 |
34.93 |
39.67 |
45.24 |
|
|
500 |
20" |
508 |
6.35 |
9.53 |
12.7 |
9.53 |
15.09 |
20.62 |
12.7 |
26.19 |
32.54 |
38.1 |
44.45 |
50.01 |
|
|
550 |
22" |
558.8 |
6.35 |
9.53 |
12.7 |
9.53 |
|
22.23 |
12.7 |
28.58 |
34.93 |
41.28 |
47.63 |
53.98 |
|
|
600 |
24" |
609.6 |
6.35 |
9.53 |
14.27 |
9.53 |
17.48 |
24.61 |
12.7 |
30.96 |
38.89 |
46.02 |
52.37 |
59.54 |
|
|
650 |
26" |
660.4 |
7.92 |
12.7 |
|
9.53 |
|
|
12.7 |
|
|
|
|
|
|
|
700 |
28" |
711.2 |
7.92 |
12.7 |
15.88 |
9.53 |
|
|
12.7 |
|
|
|
|
|
|
|
750 |
30" |
762 |
7.92 |
12.7 |
15.88 |
9.53 |
|
|
12.7 |
|
|
|
|
|
|
|
800 |
32" |
812.8 |
7.92 |
12.7 |
15.88 |
9.53 |
17.48 |
|
12.7 |
|
|
|
|
|
|
|
850 |
34" |
863.6 |
7.92 |
12.7 |
15.88 |
9.53 |
17.48 |
|
12.7 |
|
|
|
|
|
|
|
900 |
36" |
914.4 |
7.92 |
12.7 |
15.88 |
9.53 |
19.05 |
|
12.7 |
|
|
|
|
|
|
Tolerances Of Carbon Seamless Steel Pipe
|
Pipe types |
Pipe sizes(mm) |
Tolerances |
|
Hot rolled |
OD<50 |
±0.50mm |
|
OD≥50 |
±1% |
|
|
WT<4 |
±12.5% |
|
|
WT 4～20 |
+15%, -12.5% |
|
|
WT>20 |
±12.5% |
|
|
Cold drawn |
OD 6～10 |
±0.20mm |
|
OD 10～30 |
±0.40mm |
|
|
OD 30～50 |
±0.45 |
|
|
OD>50 |
±1% |
|
|
WT≤1 |
±0.15mm |
|
|
WT 1～3 |
+15%, -10% |
|
|
WT >3 |
+12.5%, -10% |
Chemical Properties %
|
/ |
Grade |
C,
max
|
Mn,
max
|
P,
max
|
S,
max
|
Cu*,
max
|
Ni*,
max
|
Cr*,
max
|
Mo*,
max
|
V*,
max
|
|
Type S (Seamless) |
A | 0.25 | 0.95 |
0.05 |
0.05 |
0.4 |
0.4 |
0.4 |
0.15 | 0.08 |
| B | 0.3 | 1.2 |
0.05 |
0.05 |
0.4 |
0.4 |
0.4 |
0.15 |
0.08 |
|
|
Type E (Electric-resistance Welded) |
A | 0.25 |
0.95 |
0.05 |
0.05 |
0.4 |
0.4 |
0.4 |
0.15 |
0.08 |
| B | 0.3 | 1.2 |
0.05 |
0.05 |
0.4 |
0.4 |
0.4 |
0.15 |
0.08 |
|
|
Type F (Furnace-welded) |
A | 0.3 | 1.2 |
0.05 |
0.05 |
0.4 |
0.4 |
0.4 |
0.15 |
0.08 |
*The total composition for these five elements shall not exceed 1.00%
Mechanical Properties
|
|
Grade A |
Grade B |
|
Tensile Strength, min., psi, (MPa) |
48,000 (330) |
60,000 (415) |
|
Yield Strength, min., psi, (MPa) |
30,000 (205) |
35,000 (240) |
(Note: This is summarized information from ASME Specification A53. Please refer to the specific Standard or Specification or contact us for more details.)
|
NOMINAL PIPE SIZE |
OD (mm) |
NOMINAL WALL THICKNESS
|
|||||||||||||
|
DN |
NB(inch) |
ASME |
SCH10 |
SCH20 |
SCH30 |
STD |
SCH40 |
SCH60 |
XS |
SCH80 |
SCH100 |
SCH120 |
SCH140 |
SCH160 |
XXS |
|
15 |
1/2" |
21.3 |
2.11 |
|
2.41 |
2.77 |
2.77 |
|
3.73 |
3.73 |
|
|
|
4.78 |
7.47 |
|
20 |
3/4" |
26.7 |
2.11 |
|
2.41 |
2.87 |
2.87 |
|
3.91 |
3.91 |
|
|
|
5.56 |
7.82 |
|
25 |
1" |
33.4 |
2.77 |
|
2.9 |
3.38 |
3.38 |
|
4.55 |
4.55 |
|
|
|
6.35 |
9.09 |
|
32 |
1.1/4" |
42.2 |
2.77 |
|
2.97 |
3.56 |
3.56 |
|
4.85 |
4.85 |
|
|
|
6.35 |
9.7 |
|
40 |
1.1/2" |
48.3 |
2.77 |
|
3.18 |
3.68 |
3.68 |
|
5.08 |
5.08 |
|
|
|
7.14 |
10.15 |
|
50 |
2" |
60.3 |
2.77 |
|
3.18 |
3.91 |
3.91 |
|
5.54 |
5.54 |
|
|
|
8.74 |
11.07 |
|
65 |
2.1/2" |
73 |
3.05 |
|
4.78 |
5.16 |
5.16 |
|
7.01 |
7.01 |
|
|
|
9.53 |
14.02 |
|
80 |
3" |
88.9 |
3.05 |
|
4.78 |
5.49 |
5.49 |
|
7.62 |
7.62 |
|
|
|
11.13 |
15.25 |
|
90 |
3.1/2" |
101.6 |
3.05 |
|
4.78 |
5.74 |
5.74 |
|
8.08 |
8.08 |
|
|
|
|
|
|
100 |
4" |
114.3 |
3.05 |
|
4.78 |
6.02 |
6.02 |
|
8.56 |
8.56 |
|
11.13 |
|
13.49 |
17.12 |
|
125 |
5" |
141.3 |
3.4 |
|
|
6.55 |
6.55 |
|
9.53 |
9.53 |
|
12.7 |
|
15.88 |
19.05 |
|
150 |
6" |
168.3 |
3.4 |
|
|
7.11 |
7.11 |
|
10.97 |
10.97 |
|
14.27 |
|
18.26 |
21.95 |
|
200 |
8" |
219.1 |
3.76 |
6.35 |
7.04 |
8.18 |
8.18 |
10.31 |
12.7 |
12.7 |
15.09 |
18.26 |
20.62 |
23.01 |
22.23 |
|
250 |
10" |
273 |
4.19 |
6.35 |
7.8 |
9.27 |
9.27 |
12.7 |
12.7 |
15.09 |
18.26 |
21.44 |
25.4 |
28.58 |
25.4 |
|
300 |
12" |
323.8 |
4.57 |
6.35 |
8.38 |
9.53 |
10.31 |
14.27 |
12.7 |
17.48 |
21.44 |
25.4 |
28.58 |
33.32 |
25.4 |
|
350 |
14" |
355.6 |
6.35 |
7.92 |
9.53 |
9.53 |
11.13 |
15.09 |
12.7 |
19.05 |
23.83 |
27.79 |
31.75 |
35.71 |
|
|
400 |
16" |
406.4 |
6.35 |
7.92 |
9.53 |
9.53 |
12.7 |
16.66 |
12.7 |
21.44 |
26.19 |
30.96 |
36.53 |
40.19 |
|
|
450 |
18" |
457.2 |
6.35 |
7.92 |
11.13 |
9.53 |
14.27 |
19.05 |
12.7 |
23.83 |
39.36 |
34.93 |
39.67 |
45.24 |
|
|
500 |
20" |
508 |
6.35 |
9.53 |
12.7 |
9.53 |
15.09 |
20.62 |
12.7 |
26.19 |
32.54 |
38.1 |
44.45 |
50.01 |
|
|
550 |
22" |
558.8 |
6.35 |
9.53 |
12.7 |
9.53 |
|
22.23 |
12.7 |
28.58 |
34.93 |
41.28 |
47.63 |
53.98 |
|
|
600 |
24" |
609.6 |
6.35 |
9.53 |
14.27 |
9.53 |
17.48 |
24.61 |
12.7 |
30.96 |
38.89 |
46.02 |
52.37 |
59.54 |
|
|
650 |
26" |
660.4 |
7.92 |
12.7 |
|
9.53 |
|
|
12.7 |
|
|
|
|
|
|
|
700 |
28" |
711.2 |
7.92 |
12.7 |
15.88 |
9.53 |
|
|
12.7 |
|
|
|
|
|
|
|
750 |
30" |
762 |
7.92 |
12.7 |
15.88 |
9.53 |
|
|
12.7 |
|
|
|
|
|
|
|
800 |
32" |
812.8 |
7.92 |
12.7 |
15.88 |
9.53 |
17.48 |
|
12.7 |
|
|
|
|
|
|
|
850 |
34" |
863.6 |
7.92 |
12.7 |
15.88 |
9.53 |
17.48 |
|
12.7 |
|
|
|
|
|
|
|
900 |
36" |
914.4 |
7.92 |
12.7 |
15.88 |
9.53 |
19.05 |
|
12.7 |
|
|
|
|
|
|
Tolerances Of Carbon Seamless Steel Pipe
|
Pipe types |
Pipe sizes(mm) |
Tolerances |
|
Hot rolled |
OD<50 |
±0.50mm |
|
OD≥50 |
±1% |
|
|
WT<4 |
±12.5% |
|
|
WT 4～20 |
+15%, -12.5% |
|
|
WT>20 |
±12.5% |
|
|
Cold drawn |
OD 6～10 |
±0.20mm |
|
OD 10～30 |
±0.40mm |
|
|
OD 30～50 |
±0.45 |
|
|
OD>50 |
±1% |
|
|
WT≤1 |
±0.15mm |
|
|
WT 1～3 |
+15%, -10% |
|
|
WT >3 |
+12.5%, -10% |
Chemical Properties %
|
/ |
Grade |
C,
max
|
Mn,
max
|
P,
max
|
S,
max
|
Cu*,
max
|
Ni*,
max
|
Cr*,
max
|
Mo*,
max
|
V*,
max
|
|
Type S (Seamless) |
A | 0.25 | 0.95 |
0.05 |
0.05 |
0.4 |
0.4 |
0.4 |
0.15 | 0.08 |
| B | 0.3 | 1.2 |
0.05 |
0.05 |
0.4 |
0.4 |
0.4 |
0.15 |
0.08 |
|
|
Type E (Electric-resistance Welded) |
A | 0.25 |
0.95 |
0.05 |
0.05 |
0.4 |
0.4 |
0.4 |
0.15 |
0.08 |
| B | 0.3 | 1.2 |
0.05 |
0.05 |
0.4 |
0.4 |
0.4 |
0.15 |
0.08 |
|
|
Type F (Furnace-welded) |
A | 0.3 | 1.2 |
0.05 |
0.05 |
0.4 |
0.4 |
0.4 |
0.15 |
0.08 |
*The total composition for these five elements shall not exceed 1.00%
Mechanical Properties
|
|
Grade A |
Grade B |
|
Tensile Strength, min., psi, (MPa) |
48,000 (330) |
60,000 (415) |
|
Yield Strength, min., psi, (MPa) |
30,000 (205) |
35,000 (240) |
(Note: This is summarized information from ASME Specification A53. Please refer to the specific Standard or Specification or contact us for more details.)
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