Mitered Bend
Mitered Bend : Specifications | Materials | Types | Dimensions | Weight Chart | Tolerances | FAQ
Trusted ASME B16.9 Buttweld Mitered Bend Manufacturer & Exporter – Delivering high-performance Stainless Steel, Carbon Steel, Alloy Steel, and High Nickel Alloy Mitered Bends (Seamless & Welded, SCH 40 / SCH 80) to industries across Italy, South Africa, Singapore, Brazil, and Canada.
Best Export Prices: sales@midlandforgefittings.com
Midland Forge and Fittings Pvt. Ltd. is a trusted manufacturer, exporter, and supplier of high-performance piping solutions, delivering excellence to industries worldwide. Our commitment to quality, timely delivery, and customer satisfaction has made us a preferred partner for clients in the oil & gas, petrochemical, power generation, and shipbuilding sectors.
Mitered Bends are meticulously designed to change the direction of pipelines efficiently while maintaining optimal flow characteristics. these bends are ideal for large-radius turns where standard elbows may not be suitable. Available in sizes from ½″ NB to 48″ NB and in schedules ranging from SCH 10 to SCH XXS, we ensure precision fabrication, perfect welding, and superior durability to withstand high-pressure and high-temperature applications.
Serving clients across continents, we cater to regions such as Europe, South America, the Middle East, and Southeast Asia. Our advanced manufacturing facilities, skilled workforce, and rigorous quality inspection processes guarantee that every Mitered Bend leaving our plant meets the highest international standards. At Midland Forge, we blend innovation with engineering expertise to deliver piping solutions that power industries around the globe.
Mitered Bend Specifications, Sizes & Standards
Buttweld Mitered Bend – Materials, Grades & Standards
| Material Category | Grade | Standards (ASTM / ASME) | Typical Use/Application |
|---|---|---|---|
| Stainless Steel | 304 / 304L / 304H | ASTM A403 WP304/304L/304H | General purpose, corrosion resistance |
| 316 / 316L / 316H | ASTM A403 WP316/316L/316H | Marine & chemical applications | |
| 317 / 317L | ASTM A403 WP317/317L | High corrosion resistance | |
| 321 / 321H | ASTM A403 WP321/321H | High temperature, stabilized | |
| 347 / 347H | ASTM A403 WP347/347H | High-temp pressure systems | |
| 904L | ASTM A403 WP904L / B625 | Acid handling, sulfuric environments | |
| 254 SMO | ASTM A403 / B366 | High chloride environments | |
| Carbon Steel | A234 WPB / WPC | ASTM A234 | Pressure piping & general piping systems |
| A420 WPL6 | ASTM A420 | Low temperature services | |
| Alloy Steel | A234 WP1 / WP5 / WP9 | ASTM A234 | High-temp & pressure pipelines |
| A234 WP11 / WP22 | ASTM A234 | Steam lines & refineries | |
| A234 WP91 | ASTM A234 | Power generation, high performance | |
| Duplex Steel | UNS S31803 / S32205 | ASTM A815 / A790 | Corrosion & high strength use |
| Super Duplex Steel | UNS S32750 / S32760 | ASTM A815 / A790 | Offshore, seawater applications |
| Nickel Alloys | Nickel 200 / 201 | ASTM B366 / B162 | Alkali & chemical processing |
| Inconel 600 / 625 / 718 | ASTM B366 | Heat exchangers, aerospace | |
| Incoloy 800 / 825 | ASTM B366 | Petrochemical & chemical processing | |
| Hastelloy C22 / C276 | ASTM B366 | Severe corrosion resistance | |
| Monel 400 / K500 | ASTM B366 | Seawater, chemical industries | |
| Alloy 20 | ASTM B366 | Sulfuric acid services | |
| Nimonic 75 / 80A | ASTM B366 / B637 | High-temp applications | |
| Copper Nickel | Cu-Ni 90/10 / 70/30 | ASTM B466 / B467 | Marine systems, seawater service |
| Titanium | Grade 2 / Grade 5 | ASTM B363 | Lightweight, corrosion resistance |
| Aluminium | 6061 / 5083 | ASTM B361 | Low-pressure, non-corrosive piping |
Dimensions of Mitered Bend
| Nominal Pipe Size (NPS) | Outside Diameter (OD) mm | Center to End (C) mm | Bend Radius (R) | No. of Pieces in Miter | Angle (per piece) |
|---|---|---|---|---|---|
| 2″ | 60.3 | 76 | 1D / 1.5D / 2D | 3 – 5 | 22.5° / 30° |
| 4″ | 114.3 | 152 | 1D / 1.5D / 2D | 3 – 5 | 22.5° / 30° |
| 6″ | 168.3 | 228 | 1D / 1.5D / 2D | 3 – 5 | 22.5° / 30° |
| 8″ | 219.1 | 305 | 1D / 1.5D / 2D | 3 – 5 | 22.5° / 30° |
| 10″ | 273.0 | 381 | 1D / 1.5D / 2D | 3 – 5 | 22.5° / 30° |
| 12″ | 323.9 | 457 | 1D / 1.5D / 2D | 3 – 5 | 22.5° / 30° |
| 16″ | 406.4 | 610 | 1D / 1.5D / 2D | 3 – 5 | 22.5° / 30° |
| 20″ | 508.0 | 762 | 1D / 1.5D / 2D | 3 – 5 | 22.5° / 30° |
| 24″ | 609.6 | 914 | 1D / 1.5D / 2D | 3 – 5 | 22.5° / 30° |
Weight Chart: ASME B16.9 Mitered Bend (SCH 40 / STD)
| Nominal Bore (NB) | Outside Diameter (OD) mm | Wall Thickness (mm) | Bend Angle | Radius (R) | Approx. Weight (kg) |
|---|---|---|---|---|---|
| 2″ (50 NB) | 60.3 | 3.91 | 90° | 1.5D | 5.2 |
| 3″ (80 NB) | 88.9 | 5.49 | 90° | 1.5D | 12.8 |
| 4″ (100 NB) | 114.3 | 6.02 | 90° | 1.5D | 20.6 |
| 6″ (150 NB) | 168.3 | 7.11 | 90° | 1.5D | 46.7 |
| 8″ (200 NB) | 219.1 | 8.18 | 90° | 1.5D | 82.4 |
| 10″ (250 NB) | 273.0 | 9.27 | 90° | 1.5D | 129.5 |
| 12″ (300 NB) | 323.9 | 9.53 | 90° | 1.5D | 175.6 |
| 14″ (350 NB) | 355.6 | 9.53 | 90° | 1.5D | 203.8 |
| 16″ (400 NB) | 406.4 | 9.53 | 90° | 1.5D | 245.9 |
| 18″ (450 NB) | 457.0 | 9.53 | 90° | 1.5D | 282.4 |
| 20″ (500 NB) | 508.0 | 9.53 | 90° | 1.5D | 321.8 |
| 24″ (600 NB) | 610.0 | 9.53 | 90° | 1.5D | 401.5 |
Buttweld Mitered Bend Tolerances as per ASME B16.9
| Fitting Type | Parameter | Tolerance | |
|---|---|---|---|
| Up to 4” NPS | Above 4” NPS | ||
| Mitered Bend | Outside Diameter at Bevel | ±1.6 mm (1/16″) | ±1.6 mm (1/16″) |
| Center-to-End (A, B) | ±1.6 mm (1/16″) | ±3.2 mm (1/8″) | |
| Wall Thickness | -12.5% (no positive tolerance) | ||
| Ovality | Shall not exceed 1% of specified OD | ||
What is the difference between a Mitered Bend and an Elbow?
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Manufacturing: Mitered bends are fabricated from welded pipe segments, whereas elbows are typically seamless or cast in one piece.
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Cost: Mitered bends are more cost-effective for large diameters, while elbows are economical for smaller sizes.
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Flow performance: Elbows provide better flow with less turbulence due to their smooth curvature, whereas mitered bends may cause slightly more turbulence unless designed with multiple cuts.
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Flexibility: Mitered bends can be custom-made for non-standard angles, whereas elbows are usually limited to standard angles (45°, 90°, etc.).
How many pieces are used in a Mitered Bend?
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The number of pieces (miters) depends on the required bend smoothness, pressure conditions, and flow requirements:
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2-piece: Suitable for simple angle changes like 45°, where flow performance is not critical.
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3-piece: Ideal for tighter-radius bends while maintaining acceptable flow characteristics.
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5 to 7-piece: Provides maximum smoothness and minimal turbulence, preferred in higher pressure or sensitive flow systems.
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The general rule: More pieces = smoother internal flow but also slightly higher fabrication cost.
How to select the right Mitered Bend for a project?
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Pipe Size & Schedule: Identify nominal bore (NB) and wall thickness based on system pressure.
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Bend Angle & Radius: Choose based on pipeline layout and available space.
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Number of Miters: More cuts mean smoother flow but higher fabrication time; balance according to project needs.
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Material Selection: Pick carbon steel, stainless steel, alloy steel, or special alloys based on temperature, corrosion, and chemical compatibility.
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Standards Compliance: Ensure the design follows ASME B16.9, ASME B31.3, or specific project engineering codes.
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Welding & Inspection Requirements: Specify NDT (Non-Destructive Testing) and welding standards to maintain quality and safety.