| SPECIFICATIONS FOR SSAW STEEL PIPE | |
| 1.Size | 1)OD:219mm-3500mm |
| 2)Wall Thickness:5mm-30mm | |
| 3)SCH20,SCH40,STD,etc | |
| 2.Standard: | ASTM A53,API 5L,EN10219,EN10210,ASTM A252 etc |
| 3.Material | Q235, Q345,ASTM A53 Gr.B,API5L Gr.B X42 X52 X60 X70 X80,S235JRH, S355J0H etc |
| 4.Usage: | 1)Low pressure liquid, water, gas, oil, line pipe |
| 2)Structure pipe, pipe piling construction | |
| 3)Fence, door pipe | |
| 5.Coating | 1) Bared 2) Black Painted (varnish coating) 3) Galvanized 4) Oiled 5) PE,3PE, FBE, corrosion resistant coating, Anti corrosion coating |
| 6.Technique | Spiral welded steel pipe |
| 7.Welded Line Type | SSAW |
| 8.Inspection: | With Hydraulic Testing, RT, UT or inspection by 3rd party |
| 9.Delivery | Container, Bulk Vessel. |
| 10. About Our Quality | 1) No damage, no bent 2) No burrs or sharp edges and no scraps 3) Free for oiled&marking 4) All goods can be checked by third party inspection before shipment |
● Bare pipe or Black / Varnish coating ( customized);
● In loose;
● Both ends with end protectors;
● Plain end , bevel end;
● Marking.
|
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, % |
18 |
14 |
... |
| Elongation in 2 in. (50.8 mm), min, % |
30 |
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), in percentage points |
1.5A |
1.25A |
1.0A... |
| 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. | ||||
| 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 lengths, double random lengths, or in uniform lengths as specified in the purchase order, in accordance with the following limits: | Single random lengths | 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. | ||
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