Miter bend

Miter bend

Pipe bends are some of the piping fittings that are commonly used in piping applications. There are different types of bends according to the needs of the application. Mitered Pipe Bend is a type of bend made by connecting two or more pieces of pipe cuttings together to form the desired angle and length of the bend. Usually, the mitered pipe bends are made up of up to 5 cut pieces of the pipe with a diameter of 10 inches or more. The applications are also restricted to low-pressure flow applications.

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Miter bend specifications

Standard Sizes Forming Of Miter Bend Bend Radii
  • Seamless : 1 1/2″ to 36″
  • Welded : 12″ to 70″
  • DN15 to DN2000
  • Buttweld : 1/2″ To 24″

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  • Hot formed
  • Cold drawn
  • 75 MM / 100 / 150 / 250 / 300 MM
  • 500 MM / 800 / 1,000 / 1,200 / 1,500 mm
Features of Miter Bend Pipeline Limitations of Fabricated Bend End
  • Perfect miter bend preparation requires highly skilled welders and fitters
  • Use for general services (category “D” fluid)
  • Pipe sizes larger than 14″ should be used for process lines
  • Miter pipe bend can be fabricated with 2, 3, 4, and 5 miters
  • Maximum number of cuts will be a of 5
  • Radius of miter bends can be 1D, 1.5D, 2D, 2.5D, 3D, 5D, 8D, 10D
  • Higher pressure drop
  • Use only low pressure piping systems
  • Poor strength
  • Higher number of weld joints
  • Higher turbulence
  • Buttweld
  • Bevel
  • Plain
Advantages of Mitered Elbow Miter Bend Weight Calculation Documentation
  • Low cost
  • No thinning required
  • D = Diameter
  • θ = Angle
  • L = Weight of double sides straight length
  • T = Wall Thickness
  • R = Radius
  • Raw material test reports
  • Heat treatment charts
  • Welding procedure specification
  • Material test certificates (MTC)
Fabricated Fittings Thickness Common Considerations For Buying Mitered Fittings Surface Finish
  • SCH 10
  • SCH 20
  • SCH 40
  • SCH 60
  • SCH 80
  • SCH 160
  • SCH XXS
  • SCH 180
  • Size
  • Temperature ratings
  • End connections
  • Marking
  • Dimensions
  • Design
  • Threading
  • Tolerances
  • Materials
  • Coatings
  • Pattern taper
  • Anti rust oil
  • Paintting black color
  • Rust proof
  • Black painted
90 Degree Miter Bend Meet The Requirements Of Application For 45 Degree Miter Bend Marking Method Single Miter Bend
  • NACE MR0175
  • NACE MR0103
  • NACE TM-0284
  • Sour service
  • ISO 15156
  • Oil and gas exploration
  • Handling the expansion
  • Marine Applications
  • Refining industry
  • Power Generation
  • Air brake fittings
  • Water treatment
  • Pipeline transportation system
  • Chemical Processing
  • Gas fittings
  • Hydraulic system

The top 10 reliable suppliers of miter bend have supplied miter elbow to the USA, Oman, Egypt, Saudi Arabia, Nigeria & South Africa

  • Manufacturer name/ logo
  • ASTM standard
  • Origin of country
  • Thickness- schedule
  • Heat Number
  • Material & grade
  • Sizes
  • Pressure class
Process Of Pipe Miter Bend Inspection Criteria Of ASME B16.9 Miter Bend Bending Technique Of Miter Bend Elbow
  • Forgings
  • Bars
  • Sheet
  • Fusion-welded pipe
  • Seamless pipe
  • Plates
  • Corrosion testing
  • Hydro testing
  • Mechanical testing
  • Universal testing machine
  • Beveling machine
  • Hardness tester
  • Charpy testing
  • Hydrogen-induced cracking (HIC)
  • Thickness gauge
  • Press bending
  • Compression bending
  • Heating bending
  • Mandrel bending
  • Liquid filling bending
  • Tensile bending
  • Roll bending
Outer Diameter Connection Miter Elbow Manufacturing Methods
  • 38.0 mm – 206.0 mm
  • Welding
  • Miter buttweld bend
  • Miter seamless bend
  • Miter welded bend

 

Compare prices of stainless steel mitered pipe elbows manufacturers in Dubai, view limitations & length calculation mitered bend

Most demanded types of mitered pipe bend

Miter 30 deg bend

Miter 30 deg bend

45 degree miter bend

45 degree miter bend

Miter 60 deg bend

Miter 60 deg bend

90 degree miter bend

90 degree miter bend

Miter 180 deg bend

Miter 180 deg bend

Short radius miter bend

Short radius miter bend

Long radius miter bend

Long radius miter bend

Single miter bend

Single miter bend

Multiple miter bend

Multiple miter bend

Fabricated bend

Fabricated bend

Mitered duct elbow

Mitered duct elbow

Miter cut elbow

Miter cut elbow

 

Miter elbow material

Stainless Steel Miter Bend Carbon Steel Miter Bend Alloy Steel Miter Bend
  • ASTM A403 WP304 mitered pipe bend
  • ASTM A403 WP304L
  • ASTM A403 WP316 fabricated bend
  • ASTM A403 WP316L
  • ASTM A403 WP310
  • ASTM A403 WP321
  • ASTM A403 WP347 mitered elbow
  • ASTM A403 WP904L
  • ASTM A234 WPB mitered bend
  • ASTM A420 WPL6 miter elbow
  • LTCS miter 45 degree bend
  • ASTM A860 WPHY 52 miter 180 deg bend
  • ASTM A860 WPHY 60 miter 30 deg bend
  • ASTM A860 WPHY 65 miter 60 deg bend
  • ASTM A234 Grade WP5
  • ASTM A234 WP9 long radius miter bend
  • ASTM A234 WP11 short radius miter bend
  • ASTM A234 Grade WP22
  • ASTM A234 Grade WP91
Nickel Alloy Miter Bend Copper Nickel Miter Bend Titanium Miter Bend
  • Inconel 600 mitered bend: ASTM B366 UNS N06600
  • Inconel 601 : ASTM B366 UNS N06601
  • Inconel 625 miter elbow : ASTM B366 UNS N06625
  • Incoloy 800 : ASTM B366 UNS N08800
  • Incoloy 825 : ASTM B366 UNS N08825
  • Hastelloy C22 : ASTM B366 UNS N06022
  • Hastelloy C276 mitered elbow : ASTM B366 UNS N10276
  • Monel 400 90 degree mitered elbow : ASTM B366 UNS N04400
  • Monel K500: ASTM B366 UNS N05500
  • Alloy 20 miter 30 deg elbow: ASTM B366 UNS N08020
  • Copper nickel 90/10 : ASTM B466 UNS C70600
  • Copper nickel 70/30 : ASTM B466 UNS C71500
  • EEMUA 234 single miter bend
  • Titanium Grade 2 : ASTM B363 UNS R50400
  • Titanium Grade 5 : ASTM B363 UNS R56400
Duplex Steel Miter Bend Super Duplex Miter Bend API Miter Bend
  • ASTM A815 UNS S31803
  • ASTM A815 UNS S32205
  • ASTM A815 UNS S32760
  • ASTM A815 UNS S32750
  • API 5L miter 90 degree elbow
  • API 5L Grade A mitered 90 degree elbow
  • API 5L Grade B miter bend pipeline
  • API 5L X42 mitered pipe bend
  • API 5L X52 fabricated fittings
  • API 5L X60 mitered fittings
  • API 5L X65 90 degree miter bend
  • API 5L X70 45 degree miter bend
Aluminum Miter Bend Copper Miter Bend Mild Steel Miter Bend
  • Grade 6061 : ASTM B361 UNS A96061
  • Grade 5083 : ASTM B361 UNS A95083
  • ASTM B62 UNS C12200 miter 60 deg elbow
  • BS EN 10241
  • BS 1740
  • BS 1387

 

Miter bend standard

  • ASME B16.9 for end preparation of the miters elbow
  • ASME B31.3 for pressure design
  • AWWS C208-96 for number of miter or cuts and sizing

Fabricated bend welding

  • Flux cored arc welding (FCAW)
  • Tungsten inert gas welding (TIG)
  • Gas metal arc welding (GMAW)
  • Shielded metal arc welding (SMAW)

Formula for mitered elbow from pipe

Formula for mitered elbow from pipe

 

The pipe should be cut at the dotted lines. A vertical reference line is indicated at the following distances from the pipe end for each dotted cut line

  • L2 : The distance between the pipe ends and the first and last reference lines.
  • L1 : Distance between reference lines
  • Cut Back : Cut lines’ offset from the pipe’s top and bottom reference lines

Design of miter bend

Design of miter bend

 

Maximum allowable internal pressure of miter bend elbow

Maximum allowable internal pressure of miter bend elbow

 

  • Single miter bend
  • Multiple miter bend

Radius of mitered pipe bend

Miter 1.5D pipe bend

Miter 1.5D pipe bend

Mitered 2.5D pipe bend

Mitered 2.5D pipe bend

Fabricated 3D pipe bend

Fabricated 3D pipe bend

Mitered 5D pipe bend

Mitered 5D pipe bend

Miter 6D pipe bend

Miter 6D pipe bend

Mitred 8D pipe bend

Mitred 8D pipe bend

Miter 10D pipe bend

Miter 10D pipe bend

Miter 22D pipe bend

Miter 22D pipe bend

 

Angle of mitered pipe elbows

Miter 45 degree elbow

Miter 45 degree elbow

Miter 90 degree elbow

Miter 90 degree elbow

Miter 180 deg elbow

Miter 180 deg elbow

Miter 30 deg elbow

Miter 30 deg elbow

Miter 60 deg elbow

Miter 60 deg elbow

Miter 120 deg elbow

Miter 120 deg elbow

 

Number of the cuts limit of ASME B31.3 miter bend

  • The number of the miters or cuts should be a max. of 5

Coatings of mitered fittings

  • FBE coatings
  • Black paint coatings
  • Epoxy coatings
  • 3PE coatings

Miter bend dimensions

45 deg bend

Miter bend dimensions

 

NPS In Inch Dimensions In Millimeter
A B C D Outer Diameter R
2 32 8 12 60.33 50
3 49 14 17.5 88.90 80
4 62 17 22.5 114.30 100
6 93 26 33.5 168.28 150
8 123 36 43.5 219.08 200
10 153 45 54 273.05 250
12 183 55 64 323.85 300
14 210 68 71 356 350
16 240 78 81 406 400
18 270 88 91 457 450
20 300 98 101 508 500
24 360 117 121.5 610 600
26 393 131 131 660 660
28 420 137 141.5 711 700
38 576 192 192 965 965
30 454 151 151.5 762 760
32 479 156 161.5 813 800
34 514 170 172 864 860
36 544 180 182 914 910

 

90 degree miter bend dimensions

90 degree miter bend dimensions

 

Diameter R S M A
Inch Radius Inch Minimum
30 45 17p 42w
32 48 18s 44s
34 51 19f 47r
36 54 21w 49f
38 57 22r 52i
40 60 23i 55w
42 63 24p 8r 57s
44 66 25s 60r
46 69 27 62f
48 72 28i 9p 65i
50 75 29r 68w
52 78 30i 70s
54 81 31p 10f 73r
56 84 32f 75f
58 87 34 78i
60 90 35w 81w
62 93 36y 83s
64 96 37i 86y
66 99 38p 88f
68 102 39f 91i
70 105 41 94w
72 108 42r 96s
78 117 45s 15r 104i
84 126 49i 112y
86 129 50y 115

 

Weight of pipe required for miter pipe elbow

Customary units

DN Weight Of Plain End, lb/ft Schedule Number O.D. (inch) Wall Thickness, (inch)
10 54.79 SCH 60 10.750 0.500
10 61.21 10.750 0.562
10 64.49 SCH 80 10.750 0.594
10 67.65 10.750 0.625
10 77.10 SCH 100 10.750 0.719
10 86.26 10.750 0.812
10 89.38 SCH 120 10.750 0.844
10 92.37 10.750 0.875

SI units

DN Weight Of Plain End, lb/ft Schedule Number O.D. (inch) Wall Thickness, (inch)
250 81.53 SCH 60 273.0 12.70
250 91.05 SCH 80 273.0 14.27
250 95.98 273.0 15.09
250 100.69 273.0 15.88
250 114.71 SCH 100 273.0 18.26
250 128.34 273.0 20.62
250 133.01 SCH 120 273.0 21.44
250 137.48 273.0 22.23

 

Supply Miter Elbow (als known as mitre bend) with hydro-tested in UAE, refer to mitered pipe bend cutting formula & latest price list

Weld 90° Long Radius Miter Bend and short radius miter bend can only be used in low-strength applications because the number of joints makes the mitered bend weaker than regular bends. The bend also has a high-pressure drop. In the case of the 180 Degree Mitered Bend, the number of welded joints and the angle of direction change are all higher, making it to have high turbulence. These types of bends are also susceptible to corrosion and it requires highly skilled personnel to make the bends.

The length of pipe required to make a Mitered Bend and the length of each mitered piece can be calculated by formulas. The length of the pipe needed to make the entire bend is equal to the sum of the lengths of the cut pieces added to the sum of the cutting allowances for each cut piece. The length of each cut piece could be calculated by the following formula. The outer length OL1 of the first cut piece is equal to tan(angle of cut)x outer radius. The outer radius, the angle of cut, and other parameters have calculation formulas as well.

Mitter bends are mostly used in water lines underground. The Asme B16.9 Buttweld Mitered Bend can be welded together with the pipe. Since the mitered bends are meant for low-pressure applications, it is often used with applications underground. The leakage potential is high with mitered bends if the pressure increased above the recommended threshold level.

Check 90 degree mitered elbow dimensions, compare price and delivery time with multiple mitered pipe elbows manufacturers in Dubai

Stainless steel is a commonly used material for piping applications. The Steel Mitered Pipe Bend can have the desired strength. Stainless steels are made up of different alloying materials in lower quantities and they have good general corrosion resistance and they are quite efficient for their cost. You can do the calculation and make your own mitered bend with the angle that you desire. So the mitered bends have the advantage of high customization.

Find genuine importers of 90 degree miter bend for oil & gas, power plants in middle east countries, buy mitered 90 degree elbow as per ASME B31.3 specification

1.5d Miter Bend and 2D miter bends are common in miter bends. The calculations are made, the pipe is cut into the desired length of pieces, and then the cut pieces are joined together by welding. There are different angles for the miter bends such as the 45 Degree Mitered Bend and the 90° miter bends. All the differently angled mitered bends can be made and fabricated through this process.