Buttweld elbow

buttweld elbow

Reducing elbows and steel pipe elbow suppliers in UAE

ASME B16.9 elbow specification

Buttweld elbow sizes Pipe elbow meet the requirements Weld elbow material grades & series
  • ASME B16.9 welded elbow : 24 – 96″ (BW)
  • ANSI B16.9 seamless elbow : 1/2″ – 24″ (BW)
  • DN 15 – DN 1400mm
  • Sour service
  • NACE MR0175
  • ISO 15156
  • NACE MR0103
  • MTC EN 10204-3.1
  • NACE TM-0284
Buttweld pipe elbow groups Long radius elbow manufacturing method Short radius elbow end
  • ASME B16.9 long radius elbow (45/ 90/ 180 degrees)
  • ANSI B16.9 short radius elbow (45/ 90/ 180 degrees)

Contact above Buttweld Elbow suppliers for extra long radius elbows

  • Flat rolling
  • Hamming
  • Piercing
  • Hot mandrel bending
  • Hot Forming
  • Pressing
  • Shape rolling
  • Pipe rolling
  • Buttweld
  • Bevel end
  • BE
Weldable pipe elbows thickness tolerance 180 degree elbow schedule chart Seamless elbow testing & quality inspection list
  • +/-12.5%

Get quote from above Buttweld Elbow suppliers & stockholders, their major exporting countries are middle east, South Africa, Egypt, USA, UAE & Oman

  • SCH 10
  • SCH 20
  • SCH 40
  • SCH 60
  • SCH 80
  • SCH 160
  • STD
  • XH
  • XXH
  • HIC tested
  • Ultrasonic test
  • X-ray test
  • MT
  • Magnetic Particle Examination (For above Sch 80 Pipe elbow bevel ends)
  • PMI – Positive Material Identification

Get multiple quotes from above Buttweld Elbow suppliers in UAE, and compare prices of USA, Korean and European origin

Types of reducing elbow Types of pipe elbow Welded elbow radius
  • 135° Reducing elbows
  • 45° Reducing elbows
  • 90° Reducing elbows
  • 180° Reducing elbows
  • Return bend
  • Street elbow
  • Buttweld elbows
  • Long sweep elbow
  • Long radius (LR) R=1.5D
  • Short radius (SR) R=1D
Elbow fittings meet standard Possible bend angle Dimensional tolerances & standard
  • 45 Deg
  • 22.5 Deg
  • 30 Deg
  • 90 Deg
  • 60 Deg
  • ANSI/ ASME B16.25 (butt welding bevel end)
  • MSS-SP-43
  • ANSI/ ASME B16.28
  • MSS-SP-83
  • ANSI / ASME B16.9
  • MSS SP 75
  • MSS-SP-95
Dimensions Download PDF

ASTM / ASME standard

ASTM/ ASME Material
ASTM B361 / SB 361 Aluminium Elbow
ASTM A403/ SA 403 Stainless Steel Elbow
Carbon Steel Elbow
ASTM A234/ SA 234 Alloy Steel Elbow
ASTM B363/ SB 363 Titanium Elbow
ASTM B366/ SB 366
  • Inconel
  • Monel
  • Hastelloy
  • Nickel alloy

Simplest way to find a genuine steel tube elbows & ASME b16.9 elbow supplier for your esteemed project in Middle East countries

Buttweld elbow grades

  • UNS 10276 (HASTELLOY C 276)
  • UNS 6625 (INCONEL 625)
  • Copper Nickel 90/10
  • UNS 6601 (INCONEL 601)
  • UNS 6600 (INCONEL 600)
  • Copper Nickel 70/30
  • UNS 8825 (INCONEL 825)
  • UNS 8020 (ALLOY 20 / 20 CB 3)
  • UNS 4400 (MONEL 400)
  • UNS 2201 (NICKEL 201)
  • ASTM / ASME SB 336 UNS 2200 (NICKEL 200)

45 degree elbow angularity

Angularity
NOMINAL PIPE
SIZE ( NPS )
OFF PLANE P (MM) OFF ANGLE Q (MM)
1/2 TO 2 1/2 2.0 1.0
5-8 6.0 3.0
20-24 10.0 5.0
10-18 10.0 4.0
3 TO 3 1/2 4.0 2.0
4 5.0 3.0

Pipe elbow dimensional tolerance

Dimensional Tolerance
ALL 90 ° & 45 °
ELBOW
NOMINAL
PIPE SIZE
( NPS )
INSIDE
DIAMETER AT
END (MM)
OUTSIDE
DIAMETER AT
BEVEL (MM)
WALL
THICKNESS
CENTRE TO
END (MM)
DIAM
ETER OUTSIDE AT BEVEL
+ 2.0
-2.0
+ 2.0
-2.0
+ NOT SPECIFIED
-15.00 %
+ 2.0
-2.0
3 ” -4 “ + 2.5
-2.5
+ 2.5
-2.5
5 ” -8 “ + 3.5
-3.5
+ 3.5
-3.5
+ 3.2
-3.2

180 degree elbow welding end / Preparation of 90° LR elbow welding end

Buttweld STD ASTM A234 ANSI B16.9 Welding End Preparation to ANSI B16.25
WALL THICKNESS WELDING AND PREPARATION
LESS THAN T ( * ) SLIGHTLY CHAMFERED AT MANUFACTURER’S OPTION OR CUT SQUARE
MORE THAN 22 ( B ) COMPOUND BEVEL AS SKETCH
T ( ) TO 22 ( A ) PLAIN BEVEL AS SKETCH
NOTE : – ( * ) T = 5 FOR CARBON ,WROUGHT IRON OR FERRITIC ALLOY STEEL
T = 4 FOR AUSTENITIC ALLOY STEEL

ASME B16.9 elbow dimensions

NPS O.D.
D
45° 3D
B
90° 3D
A
45° LR
B
90° LR
A
1/2 21.3 16 38
3/4 26.7 24 57 19 38
1 33.4 31 76 22 38
1.1/4 42.2 39 95 25 48
1.1/2 48.3 47 114 29 57
2 60.3 63 152 35 76
2.1/2 73 79 190 44 95
3 88.9 95 229 51 114
3.1/2 101.6 111 267 57 133
4 114.3 127 305 64 152
5 141.3 157 381 79 190
6 168.3 189 457 95 229
8 219.1 252 610 127 305
10 273 316 762 159 381
12 323.8 378 914 190 457
14 355.6 441 1067 222 533
16 406.4 505 1219 254 610
18 457 568 1372 286 686
20 508 632 1524 318 762
22 559 694 1676 343 838
24 610 757 1829 381 914
26 660 821 1981 406 991
28 711 883 2134 438 1067
30 762 946 2286 470 1143
32 813 1010 2438 502 1219
34 864 1073 2591 533 1295
36 914 1135 2743 565 1372
38 965 1200 2896 600 1448
40 1016 1264 3048 632 1524
42 1067 1326 3200 660 1600
44 1118 1389 3353 695 1676
46 1168 1453 3505 727 1753
48 1219 1516 3658 759 1829

Seamless elbow and welded elbow construction as per ASME B16.9 standard, metal pipe elbow available in in schedule 40/ 80 to XXS

They have a low overall cost for two reasons – carbon steel is relatively inexpensive and making buttweld fittings requires 10% to 75% less material for their manufacture. A butt weld elbow has a good heat resistance and exhibits good toughness. Since they are hard, the elbows are dimensionally accurate, even under high pressures.

They are a type of fitting when installed, can connect a piping system, and can the direct flow of media to a certain degree.

Elbows can have flanged, threaded, socket weld or butt-welded connections to pipelines.

Though the minimum thickness of the elbow is 1.10 mm, the average thickness for a buttweld reducing elbow is approx 1.20 mm.

Find complete information about reducing elbow pipe fittings wall thickness and reducing pipe elbow tolerance

All buttweld fittings have a bevelled edge. This edge permits full penetration of the pipe into the fitting such that the two form a snug connection. When the pipe is fitted into a Steel Butt Welding Elbow, welding is carried out around the circumference of the fitting to ensure a permanent, leak-proof and secure connection. Depending on the steel grade, pre-weld and post-weld heat treatments are given to the connection. The last step of installing the elbow is cleaning the welded area to prevent intergranular corrosion.

Buy steel elbows for pipe at factory price in Dubai. Check black steel elbow sizes, dimensions and price in UAE

In total there are four techniques used to manufacture a Buttweld Elbow, out of which the mandrel process is significantly used. The raw material is first heated and pushed over a die (or mandrel), which causes the pipe to expand and bend at the same time. The fittings are then treated with heat and may be coated to improve their mechanical and corrosion resistance properties.