Our aim should be to deliver high-quality solutions at aggressive rates, and top-notch service to prospects around the globe. We have been ISO9001, CE, and GS certified and strictly adhere to their good quality specifications for Original Factory 2-60mm Thickness Q420 Grade 40 St13 45# SPHC Material AISI ASTM DIN En SUS Structure Pipe Carbon Steel 18mm Seamless Pipe, Our corporation is dedicated to giving customers with superior and secure excellent items at competitive rate, creating just about every customer content with our services and products.
Our aim should be to deliver high-quality solutions at aggressive rates, and top-notch service to prospects around the globe. We have been ISO9001, CE, and GS certified and strictly adhere to their good quality specifications for China Carbon Steel Welded Pipe and Welded Black Carbon Steel Pipe, With the aim of “compete with good quality and develop with creativity” and the service principle of “take customers’ demand as orientation”, we will earnestly provide qualified products and solutions and good service for domestic and international customers.
Pipe ordered under this specification is for pipe piles in which the steel cylinder acts as a permanent load-carrying member, or as a shell to form cast –in-place concrete piles.
By seamless process / By electric resistance welded / By fusion welded process
Manufacture: Carbon Seamless Steel Pipe / Carbon ERW Steel Pipe
Size: O.D.: 168～700mm W.T.: 2～80mm / 323.8～1500mm W.T.: 8～80mm
Grade: Gr1, Gr2, Gr3
Length: 6M or specified length as required.
Ends: Plain End, Beveled End.
The steel shall contain no more than 0.050 % phospho rous.
|
Tensile Requirements |
|||
|
|
Grade 1 |
Grade 2 |
Grade 3 |
| Tensile strength, min, psi (MPa) |
50 000 (345) |
60 000 (415) |
66 000 (455) |
| Yield point or yield strength, min, psi(MPa) |
30 000 (205) |
35 000 (240) |
45 000 (310) |
| Basic minimum elongation for nominal wall thicknesses %6 in. (7.9 mm) or more: Elongation in 8 in. (203.2 mm), min, % Elongation in 2 in. (50.8 mm), min, % |
18 30 |
14 25 |
… 20 |
| For nominal wall thicknesses less than %6 in. (7.9 mm), the deduction from the basic minimum elongation in 2 in. (50.08 mm) for each Vzi – in. (0.8 mm) decrease in nominal wall thickness below %6 in. (7.9 mm), inpercentage points |
1.5A |
1.25A |
1.0A… |
Table 2 gives the computed minimum values:
| Calculated Minimum Elongation Values | ||||
| Nominal Wall Thickness |
Elongation in 2 in. (50.8 mm), min, % |
|||
|
in. |
mm. |
Grade 1 |
Grade 2 |
Grade 3 |
|
5/16（0.312） |
7.9 |
30.00 |
25.00 |
20.00 |
|
9/32（0.281） |
7.1 |
28.50 |
23.75 |
19.00 |
|
1/4（0.25） |
6.4 |
27.00 |
22.50 |
18.00 |
|
7/32（0.219） |
5.6 |
25.50 |
21.25 |
17.00 |
|
3/16（0.188） |
4.8 |
24.00 |
20.00 |
26.00 |
|
11/6（0.172） |
4.4 |
23.25 |
19.50 |
15.50 |
|
5/32（0.156） |
4.0 |
22.50 |
18.75 |
15.00 |
|
9/64（0.141） |
3.6 |
21.75 |
18.25 |
14.50 |
|
1/8（0.125） |
3.2 |
21.00 |
17.50 |
14.00 |
|
7/64（0.109） |
2.8 |
20.25 |
16.75 |
13.50 |
| The above table gives the calculated minimum elongation values for various nominal wall thicknesses. Where the specified nominal wall thickness is intermediate to those shown above, the minimum elongation value shall be determined as follows:Grade:1 E=48t+15.00
2 E=40t+12.50 3 E=32t+10.00 where: E = elongation in 2 in., %, and t = specified nominal wall thickness, in. |
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Outside Diameter
The outside diameter of pipe piles shall not vary more than ±1% from the specified outside diameter.
Wall thickness
The wall thickness at any point shall not be more than 12.5% under the specified nominal wall thickness.
Lengths
Pipe piles shall be furnished in single random legnths, double random lengths, or in uniform lengths as specified in the purchase order, in accordance with the following limits:
Single random legnths 16 to 25ft (4.88 to 7.62mm), inch
Double random lengths Over 25ft (7.62m) with a minimum average of 35ft (10.67m)
Uniform lengths length as specified with a permissible variation of ±1 in.
Weight
Each length of pipe pile shall be weighed separately and its weight shall not vary more than 15% over or 5% under its theoretical weight, calculated using its length and its weight per unit length.
Manafacturer’s name or its identifying brand
Dimensions(nominal diameter and nominal wall thickness, length and weight per unit length )
Heat number
The process of manufacture(seamless)
Grade
Specification designation
Manufacture method(hot finished ERW steel pipe: E-H; Cold finished ERW steel pipe: E-C)
Dimensions(nominal diameter)
Manufacturer’s name or its identifying brand
Bare pipe, black coating, etc in loose;
6″ and below sizes In bundles with two cotton slings, other sizes in loose;
Both ends with end protectors;
Plain end, bevel end
Marking.
Our aim should be to deliver high-quality solutions at aggressive rates, and top-notch service to prospects around the globe. We have been ISO9001, CE, and GS certified and strictly adhere to their good quality specifications for Original Factory 2-60mm Thickness Q420 Grade 40 St13 45# SPHC Material AISI ASTM DIN En SUS Structure Pipe Carbon Steel 18mm Seamless Pipe, Our corporation is dedicated to giving customers with superior and secure excellent items at competitive rate, creating just about every customer content with our services and products.
Original Factory China Carbon Steel Welded Pipe and Welded Black Carbon Steel Pipe, With the aim of “compete with good quality and develop with creativity” and the service principle of “take customers’ demand as orientation”, we will earnestly provide qualified products and solutions and good service for domestic and international customers.
