TECHNICAL DATA OF BLACK AND HOT DIP GALVANIZED STEEL PIPES CONFORMING TO ASTM A 53 GRADE A & B SCH-40
| OUTSIDE DIAMETER | WALL THICKNESS | WEIGHT OF BLACK PIPES | TEST PRESSURE | SOCKET DIMENSIONS | NO. OF PCS PER LIFT |
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| NOMINAL PIPE SIZE | STANDARD | STANDARD | PLAIN END | GRADE A | GRADE B | MIN OUTSIDE DIA | MIN LENGTH | |||||||||||
| INCH | MM | INCH | MM | INCH | MM | KG/MTR | MTR/TON | LB/FT | FT/TON | PSI | KPA | PSI | KPA | INCH | MM | INCH | MM | |
| 1/2 | 15 | 0.840 | 21.3 | 0.109 | 2.77 | 1.27 | 787 | 0.85 | 2583 | 700 | 4800 | 700 | 4800 | 1.063 | 27.0 | 1.500 | 38.1 | 120 |
| 3/4 | 20 | 1.050 | 26.7 | 0.113 | 2.87 | 1.69 | 592 | 1.13 | 1941 | 700 | 4800 | 700 | 4800 | 1.313 | 33.4 | 1.563 | 39.7 | 84 |
| 1 | 25 | 1.315 | 33.4 | 0.133 | 3.38 | 2.50 | 400 | 1.68 | 1312 | 700 | 4800 | 700 | 4800 | 1.576 | 40.0 | 1.938 | 49.2 | 60 |
| 1.1/4 | 32 | 1.660 | 42.2 | 0.140 | 3.56 | 3.39 | 295 | 2.27 | 968 | 1200 | 8300 | 1300 | 9000 | 1.900 | 48.3 | 2.000 | 50.8 | 42 |
| 1.1/2 | 40 | 1.900 | 48.3 | 0.145 | 3.68 | 4.05 | 247 | 2.72 | 810 | 1200 | 8300 | 1300 | 9000 | 2.200 | 55.9 | 2.000 | 50.8 | 36 |
| 2 | 50 | 2.375 | 60.3 | 0.154 | 3.91 | 5.44 | 184 | 3.66 | 603 | 2300 | 15900 | 2500 | 17200 | 2.750 | 69.8 | 2.063 | 52.4 | 26 |
| 2.1/2 | 65 | 2.875 | 73.0 | 0.203 | 8.63 | 116 | 5.80 | 380 | 2500 | 17200 | 2500 | 17200 | 3.250 | 82.5 | 3.063 | 77.8 | 18 | |
| 3 | 80 | 3.500 | 88.9 | 0.216 | 5.49 | 11.29 | 89 | 7.58 | 291 | 2220 | 15300 | 2500 | 17200 | 4.000 | 101.6 | 3.188 | 81.0 | 14 |
| 3.1/2 | 90 | 4.000 | 101.6 | 0.226 | 5.74 | 13.57 | 74 | 9.12 | 242 | 2030 | 14000 | 2370 | 16300 | 4.625 | 117.5 | 3.313 | 84.1 | 12 |
| 4 | 100 | 4.500 | 114.3 | 0.237 | 6.02 | 16.07 | 62 | 10.80 | 204 | 1900 | 13100 | 2210 | 15200 | 5.000 | 127.0 | 3.438 | 87.3 | 10 |
| 5 | 125 | 5.563 | 141.3 | 0.258 | 6.55 | 21.77 | 46 | 14.63 | 151 | 1670 | 11500 | 1950 | 13400 | 6.296 | 159.9 | 3.688 | 93.7 | 7 |
| 6 | 150 | 6.625 | 168.3 | 0.280 | 7.11 | 28.26 | 35 | 18.99 | 116 | 1520 | 10500 | 1780 | 12300 | 7.390 | 187.7 | 4.938 | 125.4 | 7 |
| 8 | 200 | 8.625 | 219.1 | 0.322 | 8.18 | 42.55 | 24 | 28.58 | 79 | 1340 | 9200 | 1570 | 10800 | -- | -- | -- | -- | |
CHEMICAL COMPOSITION (% MAX)
| ELEMENT ---> | Carbon | Manganese | Phosphorus | Sulphur | Copper | Nickel | Chromium | Molybdenum | Vanadium |
| C | Mn | P | S | Cu | Ni | Cr | Mo | V | |
| GRADE-A | 0.25 | 0.95 | 0.05 | 0.045 | 0.40 | 0.40 | 0.40 | 0.15 | 0.08 |
| GRADE-B | 0.30 | 1.20 | 0.05 | 0.045 | 0.40 | 0.40 | 0.40 | 0.15 | 0.08 |
HEAT TREATMENT - Weld seam of the ERW pipe in Grade-B shall be heat treated after welding to a minimum temperature of 10000F[5400C] so that no untempered martensite remains.
MECHANICAL PROPERTIES
| PROPERTIES ---> | Tensile Strength | Yield Strength | ||
| psi | MPa | psi | MPa | |
| GRADE-A | 48000 | 330 | 30000 | 205 |
| GRADE-B | 60000 | 415 | 35000 | 240 |
Min Percentage Elongation in 2"[ 50mm] rounded to nearest 1/2
e = 625,000[1940] x (A0.2/U0.9)
A = cross sectional area of the tension specimen, rounded to the nearest 0.01 inch2[1mm2], based on specified outside diameter. If the area is more than 0.75 inch2 [500mm2], then the value 0.75 inch2 [500mm2] shall be used.
U = specified minimum tensile strength, psi[MPa].
TOLERANCES
OUTSIDE DIAMETER
| SIZE FROM | SIZE TO | TOLERANCE INCH(MM) | |
| INCH (MM) | INCH (MM) | POSITIVE | NEGATIVE |
| 1/2 (15) | 1.1/2(40) | 1/64 (0.40) | 1/64 (0.40) |
| 2 (50) | 8 (200) | 1% OF OD | 1% OF OD |
THICKNESS: 12.5% max under the nominal wall thickness.
WEIGHT: + / - 10% on calculated standard weight.
END FINISH
Square Cut Ends for sizes less than or equal to 1.1/2" NPS
Beveled Ends at 300 -00/+50 for sizes 2" NPS and above.
BEND TEST
Applicable for sizes 2" NPS and below 90o bending radius should be 6 times of the tube diameter.
FLATTENING TEST
Applicable for sizes 2" NPS and above in three stages.
STAGE-1 : For weld ductility until 2/3 of outside dia of specimen tube.
STAGE-2 : For ductility of steel until 1/3 of outside dia of specimen tube.
STAGE-3 : Full flattening for testing of laminated and unsound material.
ZINC COATING
MINIMUM : 1.60 oz / ft2 [490 Gm / Mtr2]
AVERAGE : 1.80 oz / ft2 [550 Gm / Mtr2]