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aljazera-steel

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
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]

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