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ASTM A234 WPB Buttweld Elbow

  • 20inch Butt Weld Long Radius 90 Degree Elbow ASME B16.9 A234 WPB
20inch Butt Weld Long Radius 90 Degree Elbow ASME B16.9 A234 WPB

20inch Butt Weld Long Radius 90 Degree Elbow ASME B16.9 A234 WPB

  • 20‘’
  • Long Radius
  • 90 Degree
  • A234 WPB
  • Product description:
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Carbon steel elbow is a weldable & threaded pipe fitting that allows for change of flow direction, we manufactured them as standard of ASME B16.9 and B16.11. ASTM A234 WPB Elbow is the common used in the oil and gas industires.

We have supplied our buttweld fittings to major customers which business in Oil & Gas, Chemical & Petrochemical, Water treatment, Nuclear & Power Plant, Offshore platform & Shipbuilding. Our products are applicable for any kinds of severe operating condition such as high pressure and high temperature or cryogenic condition.

Supply Range of Carbon Steel Pipe Elbow

Standard: ASME B16.9, SH3408, HG/T21635, SY/T0510

Size: NPS 1/2″ to 48″ / DN 15 to 1200

Schedule: Sch 20, 40, STD, 80, 160, XXS

Designation: ASTM / ASME A234, A860, A420

Grade: WPB/C, WPHY 42, 46, 52, 60, 65, 70, WPL 3, 6, 9

Type: Seamless Elbow and Weld Elbow

Carbon Steel Chemical Properties

The common used carbon steel grades are ASTM A234 WPB and A420 WPL6 For low temperature service.

Grade

C

Mn

Si

S

P

A234 WPB

≤0.3

0.29 – 1.06

0.1

≤0.058

≤0.05

A420 WPL6

≤0.3

0.6 – 1.35

0.15 – 0.3

≤0.04

≤0.035

Long Radius Elbow

Fittings that change direction in a piping system are called elbows which available in 90 degree and 45 degree long radius elbow. Both of them has the center line at 1.5 x NPS from elbow end.

Short Radius Elbow

Short radius elbow almost same as above long radius,  the difference is center line to end is 1 x NPS and available in 90 degree only.

Surface of Carbon Steel Elbow

Painting

Firstly, we do the blasting on the body of elbow, to clean the dirt things. Then paint the primer on the inner and outer side. The mainly purpose is against rust during the shipment.

PE Coating

Clean the steel pipe elbow body and wrap the polyethylene tape on it with adhesive. Usually the thickness of coating is 2mm. They are used in the underground pipeline system.

Galvanizing

Take carbon steel buttweld fittings into a bath of molten zinc. That would get more zinc and make the price is high.

We surfaced carbon steel forged fittings with electrogalvanizing because it is pretty and low cost.


Nominal Diameter Outside Diameter at Bevel A B
DN NPS OD Long Radius Short Radius Long Radius
15 1/2 21.3 38 16
20 3/4 26.9 38 19
25 1 33.7 38 25 22
32 1 1/4 42.4 48 32 25
40 1 1/2 48.3 57 38 29
50 2 60.3 76 51 35
65 2 1/2 73 95 64 44
80 3 88.9 114 76 51
90 3 1/2 101.6 133 89 57
100 4 114.3 152 102 64
125 5 139.7 190 127 79
150 6 168.3 229 152 95
200 8 219.1 305 203 127
250 10 273 381 254 159
300 12 323.9 457 305 190
350 14 355.6 533 356 222
400 16 406.4 610 406 254
450 18 457.2 686 457 286
500 20 508 762 508 318
550 22 559 838 559 343
600 24 610 914 610 381
650 26 660 991 660 406
700 28 711 1067 711 438
750 30 762 1143 762 470
800 32 813 1219 813 502
850 34 864 1295 864 533
900 36 914 1372 914 565
950 38 965 1448 965 600
1000 40 1016 1524 1016 632
1050 42 1067 1600 1067 660
1100 44 1118 1676 1118 695
1150 46 1168 1753 1168 727
1200 48 1220 1829 1220 759
1300 52 1321 1981 1321 821
1400 56 1422 2134 1422 883
1500 60 1524 2286 1524 947
1600 64 1626 2438 1626 1010
1700 68 1727 2591 1727 1073
1800 72 1829 2743 1829 1137
1900 76 1930 2896 1930 1199
2000 80 2032 3048 2032 1263

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