Pipeline Casing Pipes Structural Design
November 27, 2024
Load-Carrying Capacity of Steel Pipe Piles
November 30, 2024Chemical composition and mechanical properties of ASTM A234 WP11
Chemical Compositions (max, %)
|
Steel Grade Grade A |
WP11 CL1 |
WP11 CL2 |
|
C |
0.05-0.15 |
0.05-0.20 |
|
Mn |
0.30-0.60 |
0.30-0.80 |
|
P |
0.030 |
0.040 |
|
S |
0.030 |
0.040 |
|
And |
0.50-1.00 |
0.50-1.00 |
|
Cr |
1.00-1.50 |
1.00-1.50 |
|
Mo |
0.44-0.65 |
0.44-0.65 |
|
In |
… |
… |
|
With |
… |
… |
|
V |
… |
… |
A When fittings are of welded construction, the grade and marking symbol shown above shall be supplemented by letter “W”.
Tensile Requirements
|
Steel Grade |
WP11 CL2 |
WP11 CL1 |
|
Tensile strength, range ksi [MPa] |
70–95 [485–655] |
60–85 [415–585] |
|
Yield |
40 [275] |
30 [205] |
Elongation
|
Elongation : |
WP11 |
|
|
Vertical Longitudinal |
Horizontal Transverse |
|
| Standard round specimen, or small proportional specimen, min % in 4 D |
22 |
14 |
| Rectangular specimen for wall thickness 5⁄16 in. [ 7.94 mm ] and over, and for all small sizes tested in full section; min % in 2 in. [ 50 mm ] |
30 |
20 |
| Rectangular specimen for wall thickness less than 5⁄16 in . [ 7.94 mm]; min % in 2 in . [ 50 mm ] (1⁄2-in. [12.7- mm ] wide specimen ) |
A |
A |
A For each 1⁄32 in. [0.79 mm] decrease in wall thickness below 5⁄16 in. [7.94 mm], a deduction of 1.5 % for longitudinal and 1.0 % for transverse from the values shown above is permitted. The following table gives the minimum value for various wall thicknesses.
|
Wall Thickness |
WP11 |
||
|
in. |
[mm] |
Vertical Longitudinal |
Horizontal Transverse |
|
5⁄16 (0.312) |
7.94 |
30 |
20 |
|
9⁄32 (0.281) |
7.14 |
28.5 |
19 |
|
1⁄4 (0.250) |
6.35 |
27 |
18 |
|
7⁄32 (0.219) |
5.56 |
25.5 |
… |
|
3⁄16 (0.188) |
4.76 |
24 |
… |
|
5⁄32 (0.156) |
3.97 |
22.5 |
… |
|
1⁄8 (0.125) |
3.17 |
21 |
… |
|
3⁄32 (0.094) |
2.38 |
19.5 |
… |
|
1⁄16 (0.062) |
1.59 |
18 |
… |
