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Specialty Pipe Piling and Piles
Pipe piles are one of the most versatile pile found in the deep foundation industry. As such, there are several types of pipe piles that should be considered based on the application. These include:
Standard Steel Piles: Load bearing piles that support a large range of different pile types. Various attachments, including conical points, can be welded to the pile for more efficient driving through specific soil types
Micro Piles: Ideal for projects with minimal workspace and low headroom. In a mini caisson, the pile is filled with concrete to help reduce high underground pressures and reinforced with high strength rebar
Helical piles or Screw Piles: These piles have a screw or helix welded to the end of the pile shaft. The pile is then “screwed” into the ground for deep foundation projects. This leads to an ease of installation, shorter project times and less soil displacement than other pile types.
Usage: Used for low pressure liquid delivery, such as water, gas, and oil; construction and piling
Standard: API 5L, API 5CT, ASTM A252, ASTM 53, EN10217, EN10219, BS 5950, ASTM A572 , JIS, IS,
Certificate: EN10217, EN10219, API 5L PSL1/ PSL2, API 5CT
Size:Out Diameter: 219.1mm –3048mm
Wall Thickness: 5.0mm-30mm
Length: Up to 70m
Steel Grade:
API 5L: GR A, GR B, X42,X46, X56, X60,X65,X70
ASTM A252 GR 1, GR 2, GR 3
ASTM A53: GR A, GR B, GR C, GR D
BS 4360: Grade 43, Grade 50
EN: S275, S275JR, S355JRH, S355J2H
Surface: Fusion bond Epoxy coating, Coal Tar Epoxy, 3PE, Vanish Coating, Bitumen Coating, Black Oil coating as per customer’s requirement
Test: Chemical Component Analysis, Mechanical Properties (Ultimate tensile strength, Yield strength, Elongation), Technical Properties (Flattening Test, Bending Test, Blow Test, Impact Test), Exterior Size Inspection, Hydrostatic Test, X-ray Test.
Mill Test Certificate: EN 10204/3.1B
The widely used forms of pile pipe: Usually in big diameters (heavy-duty steel pipe), dimensions from 16 inch up to 60 inch, manufactured using seamless, longitudinal welded (LSAW), or spiral welded(SSAW). Depends on the soil environments, pipe could be coated with zinc (galvanized), FBE or 3PE coated. In this way to provide moisture resistance and corrosion resistance.
Applications
Steel pipe pile is a most recommend piling material for sea port constructions, yard buildings. It has been widely used in sea works or marine works, to create the tough foundations. Other than this, typical uses also as under buildings, bridges, and structural constructions. More details uses as below list:
Onshore and offshore constructions
Marine foundations / constructions
Tower building
Railway, highway construction
Dock yard construction
Sea works, marine works
Oil and gas filed fundations
Structural support in special buildings
and etcs.
|
ERW |
Wall Thickness (inches) |
|||||||||
|
Outside Diameter (inches) |
lbs / ft |
0.188 |
0.219 |
0.250 |
0.312 |
0.375 |
0.438 |
0.500 |
0.625 |
0.750 |
|
8.625 |
16.96 |
19.68 |
22.38 |
27.73 |
33.07 |
38.33 |
43.43 |
|
|
|
|
10.75 |
21.23 |
24.65 |
28.06 |
34.81 |
41.59 |
48.28 |
54.79 |
|
|
|
|
12.75 |
25.25 |
29.34 |
33.41 |
41.48 |
49.61 |
57.65 |
65.48 |
|
|
|
|
14 |
27.76 |
32.26 |
36.75 |
45.65 |
54.62 |
63.50 |
72.16 |
|
|
|
|
16 |
31.78 |
36.95 |
42.09 |
52.32 |
62.64 |
72.86 |
82.85 |
102.72 |
|
|
|
18 |
|
41.63 |
47.44 |
58.99 |
70.65 |
82.23 |
93.54 |
116.09 |
|
|
|
20 |
|
|
52.78 |
65.66 |
78.67 |
91.59 |
104.23 |
129.45 |
|
|
|
24 |
|
|
63.47 |
79.01 |
94.71 |
110.32 |
125.61 |
156.17 |
186.41 |
|
|
DSAW |
Wall Thickness (inches) |
|||||||
|
Outside Diameter (inches) |
lbs / ft |
0.312 |
0.375 |
0.500 |
0.625 |
0.750 |
0.875 |
1.000 |
|
24 |
79.01 |
94.71 |
125.61 |
156.17 |
186.41 |
|
|
|
|
26 |
85.68 |
102.72 |
136.3 |
139.54 |
202.44 |
|
|
|
|
28 |
92.35 |
110.74 |
146.99 |
182.9 |
218.48 |
253.72 |
|
|
|
30 |
99.02 |
118.76 |
157.68 |
196.26 |
234.51 |
272.43 |
|
|
|
32 |
105.69 |
126.78 |
168.37 |
209.62 |
250.55 |
291.14 |
|
|
|
34 |
112.36 |
134.79 |
179.06 |
222.99 |
266.58 |
309.84 |
|
|
|
36 |
|
142.81 |
189.75 |
236.35 |
282.62 |
328.55 |
|
|
|
38 |
|
150.83 |
200.44 |
249.71 |
298.65 |
347.26 |
|
|
|
40 |
|
158.85 |
211.13 |
263.07 |
314.69 |
365.97 |
|
|
|
42 |
|
166.86 |
211.82 |
276.44 |
330.72 |
384.67 |
438.29 |
|
|
44 |
|
174.88 |
232.51 |
289.8 |
346.76 |
403.38 |
459.67 |
|
|
46 |
|
182.9 |
243.2 |
303.16 |
362.79 |
422.09 |
481.05 |
|
|
48 |
|
190.92 |
253.89 |
316.52 |
378.83 |
440.8 |
502.43 |
|
|
Spiral Weld |
Wall Thickness (inches) |
|||||||||
|
Outside Diameter (inches) |
lbs / ft |
0.250 |
0.312 |
0.375 |
0.438 |
0.500 |
0.625 |
0.750 |
0.875 |
1.000 |
|
18 |
47.4 |
59 |
70.7 |
82.2 |
93.5 |
|
|
|
|
|
|
20 |
52.8 |
65.7 |
78.7 |
91.6 |
104.2 |
|
|
|
|
|
|
22 |
58.1 |
72.3 |
86.7 |
101 |
114.9 |
142.8 |
|
|
|
|
|
24 |
63.5 |
79 |
94.7 |
110.3 |
125.6 |
156.2 |
186.4 |
|
|
|
|
26 |
68.8 |
85.7 |
102.7 |
119.7 |
136.3 |
169.5 |
202.4 |
|
|
|
|
28 |
74.2 |
92.4 |
110.7 |
129.1 |
147 |
182.9 |
218.5 |
|
|
|
|
30 |
79.5 |
99 |
118.8 |
138.4 |
157.7 |
196.3 |
234.5 |
272.4 |
|
|
|
32 |
84.9 |
105.7 |
126.8 |
147.8 |
168.4 |
209.6 |
250.5 |
291.1 |
|
|
|
34 |
90.2 |
112.4 |
134.8 |
157.1 |
179.1 |
223 |
266.6 |
309.8 |
|
|
|
36 |
95.5 |
119 |
142.8 |
166.5 |
189.7 |
236.3 |
282.6 |
328.6 |
374.2 |
|
|
38 |
100.9 |
125.7 |
150.8 |
175.9 |
200.4 |
249.7 |
298.7 |
347.3 |
395.5 |
|
|
40 |
106.2 |
132.4 |
158.8 |
185.2 |
211.1 |
263.1 |
314.7 |
366 |
416.9 |
|
|
42 |
111.6 |
139 |
166.9 |
194.6 |
221.8 |
276.4 |
330.7 |
384.7 |
438.3 |
|
|
48 |
127.6 |
159.1 |
190.9 |
222.7 |
253.9 |
316.5 |
378.8 |
440.8 |
502.4 |
|
|
54 |
|
179.1 |
215 |
250.8 |
286 |
356.6 |
426.9 |
496.9 |
566.6 |
|
|
60 |
|
199.1 |
239 |
278.9 |
318 |
396.7 |
475 |
553 |
630.7 |
|
|
66 |
|
219.1 |
263.1 |
307 |
350.1 |
436.8 |
523.1 |
609.2 |
694.9 |
|
|
72 |
|
239.1 |
287.1 |
335.1 |
382.2 |
476.9 |
571.2 |
665.3 |
759 |
|
|
78 |
|
259.1 |
311.2 |
363.2 |
414.2 |
517 |
649.4 |
721.4 |
823.1 |
|
|
84 |
|
279.1 |
335.2 |
391.3 |
446.3 |
557 |
667.5 |
777.5 |
887.3 |
|
|
90 |
|
229.1 |
359.3 |
419.3 |
478.4 |
597.1 |
715.6 |
833.7 |
951.4 |
|
|
96 |
|
319.1 |
383.3 |
447.4 |
510.4 |
637.2 |
763.7 |
889.8 |
1015.6 |
|
ASTM A252--This specification is generally for the wall steel pipes that are cylindrical in shape and the steel cylinder acts like a load-carrying member for the cast-in-place piles of concrete.Grades in three levels, Gr 1, Gr 2, and Gr 3.
STEEL CHEMICAL COMPOSITION
The steel shall conform to the following requirements as to chemical composition:
Phosphorus, maximum (%) : 0.050
MECHANICAL PROPERTIES
|
STEEL GRADE |
Yield strength, min. psi (MPa) |
Tensil strength, min. psi (MPa) |
Elongation in 2 in., min. % |
|
GRADE 1 |
30,000 (205) |
50,000 (345) |
30% |
|
GRADE 2 |
35,000 (240) |
60,000 (415) |
25% |
|
GRADE 3 |
45,000 (310) |
66,000 (455) |
20% |
TEST REQUIRED
Chemical Analysis, Mechanical Test, Visusal Inspection , Tension Test, Dimension Check
EN10219 Structure Pipe
STEEL GRADE
EN10219 S235, S275, S355,etc
STEEL CHEMICAL COMPOSITION
|
STEEL GRADE |
% by mass, Maximum |
|||||
|
C |
Si |
Mn |
P |
S |
N |
|
|
S235JRH |
0.17 |
– |
1.40 |
0.040 |
0.040 |
0.009 |
|
S275JOH |
0.20 |
– |
1.50 |
0.035 |
0.035 |
0.009 |
|
S275J2H |
0.20 |
– |
1.50 |
0.030 |
0.030 |
– |
|
S355JOH |
0.22 |
0.55 |
1.60 |
0.035 |
0.035 |
0.009 |
|
S355J2H |
0.22 |
0.55 |
1.60 |
0.030 |
0.030 |
– |
|
S355K2H |
0.22 |
0.55 |
1.60 |
0.030 |
0.030 |
– |
MECHANICAL PROPERTIES
|
STEEL GRADE |
Yield strength, min. psi (MPa) |
Tensil strength, min. psi (MPa) |
Elongation in 2 in., min. % |
Minimum Impact energy KV J |
||
|
at test temperature of |
||||||
|
-20 |
0 |
20 |
||||
|
S235JRH |
235 |
360 |
24% |
– |
– |
27 |
|
S275JOH |
275 |
430 |
20% |
– |
27 |
– |
|
S275J2H |
355 |
510 |
20% |
27 |
– |
– |
|
S355JOH |
355 |
510 |
20% |
– |
27 |
– |
|
S355J2H |
355 |
510 |
20% |
27 |
– |
– |
|
S355K2H |
355 |
510 |
20% |
40 |
– |
– |
TEST REQUIRED
Chemical Analysis, Mechanical Test, Visusal Inspection , Tensile Test, Dimension Check, NDT ,Impact Test
Pipe piling generally manufactured using seamless, resistance welding, fusion welding, flash welding with seams being longitudinal, helical. It also specifies the tensile requirements, minimum values and the common size and weight based on the values.
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