Products : TUBE MILL : ASTM A 53

TECHNICAL DATA OF BLACK AND HOT DIP GALVANIZED STEEL PIPES CONFORMING TO ASTM A 53 GRADE A & B SCH-40/ASTM A 795 GR 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

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--

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3

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]

MARKING

Each pipe is stenciled as "JAZEERA STEEL OMAN, ASTM A 53 GR A / B-ERW SCH 40 NPS-LENGTH-HEAT NO"

Gallery