Technical Data
S.S Schedule Piping to ASTM A-312 (ERW)
S.S Schedule Piping to ASTM A-312 (ERW)
Material
Material is ordered to comply with the requirement of ASTM A-240 in 304, 304L, 316 and 316L grades regularly. Special grades can be made as per Customer's requirements.
Size Range
OD : ½" NPS (21.3 mm) to 8" NPS (219.1 mm)
Thick : NB size in schedule 5 10 S & 40S
Length : As per Customers Requirement.
Process of Manufactures
The pipe is manufactured from annealed strips on modern continuous forming mills with TIG welding process under inert gas atmosphere. All pipes are annealed at a minimum temperature of 1050°C, straightened, pickled and passivated, end finished & 100% tested in accordance with ASTM A-530
Tolerances
Material is ordered to comply with the requirement of ASTM A-240 in 304, 304L, 316 and 316L grades regularly. Special grades can be made as per Customer's requirements.
Size Range
OD : ½" NPS (21.3 mm) to 8" NPS (219.1 mm)
Thick : NB size in schedule 5 10 S & 40S
Length : As per Customers Requirement.
Process of Manufactures
The pipe is manufactured from annealed strips on modern continuous forming mills with TIG welding process under inert gas atmosphere. All pipes are annealed at a minimum temperature of 1050°C, straightened, pickled and passivated, end finished & 100% tested in accordance with ASTM A-530
Tolerances
| OD | Size Range | Over mm | Under mm |
| Upto 1" NB | 0.40 | 0.79 | |
| Over 1" NB to 4" NB | 0.79 | 0.79 | |
| Over 4" NB to 8" NB | 1.57 | 0.79 | |
| Thickness : ± 12.5 of nominal wall thickness | Length : 0/+ 6 mm | ||
Test
Normal : Tensile strength / Yield strength / Elongation, Flattening, Hydrostatic Pressure
Optional : Pneumatic / Air leakage, Eddy current, IG Corrosion
Normal : Tensile strength / Yield strength / Elongation, Flattening, Hydrostatic Pressure
Optional : Pneumatic / Air leakage, Eddy current, IG Corrosion
Standard Weight Chart
| Outside Dia | SCH 5 | SCH 10 S | SCH 40 S | ||||
| NB Inch | mm | ||||||
| Thick | Kg/Mtr. | Thick | Kg/Mtr. | Thick | Kg/Mtr. | ||
| ½" | 21.3 | 1.65 | 0.81 | 2.11 | 1.01 | 2.77 | 1.29 |
| ¾" | 26.7 | 1.65 | 1.03 | 2.11 | 1.30 | 2.87 | 1.71 |
| 1" | 33.4 | 1.65 | 1.31 | 2.77 | 2.12 | 3.38 | 2.54 |
| 1 ¼" | 42.2 | 1.65 | 1.93 | 2.77 | 3.15 | 3.68 | 4.11 |
| 1 ½" | 48.3 | 1.65 | 1.93 | 2.77 | 3.15 | 3.68 | 4.11 |
| 2" | 60.3 | 1.65 | 2.42 | 2.77 | 3.98 | 0.481 | 0.531 |
| 1" | 25.40 | 2.11 | 3.74 | 3.05 | 5.34 | 5.16 | 8.76 |
| 3" | 88.9 | 2.11 | 4.58 | 3.05 | 6.54 | 5.49 | 11.45 |
| 3 ½" | 101.6 | 2.11 | 5.25 | 3.05 | 7.52 | 5.74 | 13.77 |
| 4" | 114.3 | 2.11 | 5.25 | 3.05 | 7.52 | 5.74 | 13.77 |
| 5" | 141.3 | 2.77 | 9.50 | 3.40 | 11.74 | 6.55 | 22.10 |
| 6" | 168.3 | 2.77 | 11.47 | 3.40 | 14.04 | 7.11 | 28.68 |
| 8" | 219.1 | 2.77 | 14.99 | 3.76 | 20.25 | 8.18 | 43.16 |
