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EN 10253 Type B Available Hot Induction Piggable

Long Radius Pipe Bends

3D  |  5D  |  6D  |  8D  |  10D  |  Piggable  |  Hot Induction

Manufacturer and exporter of long radius pipe bends — 3D through 10D, piggable bends, hot induction bends and custom bends. Size 2" to 48", SCH 20 to XXS. Controlled ovality, minimum wall thinning, wrinkle-free intrados and specified tangent lengths. Carbon Steel, Alloy Steel P11–P91–P92, Stainless Steel, Duplex and Nickel Alloys. EN 10204 3.1/3.2 MTR. PED 2014/68/EU certified.

Long radius pipe bends in three sizes — Arshya Pipe Fittings

Range at a Glance

Radii3D, 5D, 6D, 8D, 10D
Bend AngleUp to 180° (custom)
Size2" – 48" NPS
ScheduleSCH 20 – XXS
MethodHot induction / cold form
TangentsAs specified
PiggableAvailable ✓
MTR3.1 std / 3.2 on request

Bend Types & Radii

3D & 5D Bends

Centre-line radius of 3× or 5× nominal diameter. The most common long radius bends — lower pressure drop than elbows, suited to compact pipeline and station layouts.

  • ✓ Hot induction or cold formed
  • ✓ Controlled ovality & wall thinning

6D, 8D & 10D Bends

Large-radius bends for very smooth flow and minimal turbulence. Standard for cross-country transmission pipelines and pig-launching sections.

  • ✓ Piggable geometry
  • ✓ Long tangent lengths available
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Piggable Bends

Radius, ovality and wall thinning controlled so inspection and cleaning pigs pass without snagging. Essential for pipeline pig runs.

  • ✓ Minimum wall thickness maintained
  • ✓ Wrinkle-free intrados
🔥

Hot Induction Bends

Formed by localised induction heating and controlled bending, followed by heat treatment. Best dimensional control and metallurgy for heavy-wall and alloy pipe.

  • ✓ Post-bend heat treatment / PWHT
  • ✓ Ideal for CrMo & heavy wall
❄️

Cold Formed Bends

Cold bending for smaller diameters and thinner walls where hot forming is not required. Economical for utility and moderate-service piping.

  • ✓ Small to medium bore
  • ✓ Ovality controlled
✂️

Custom & Mitre Bends

Non-standard angles, radii and tangent lengths to drawing, including fabricated mitre bends for large diameters. Made to your isometric.

Send your drawing →

Available Material Grades

Carbon Steel

Alloy Steel (CrMo)

Stainless Steel

  • WP316L / 1.4404
  • WP304L / 1.4307
  • WP321 / 1.4541
  • Duplex 1.4462
  • Super Duplex 1.4410

Nickel Alloys

  • Hastelloy C-276
  • Inconel 625 / 2.4856
  • Incoloy 825 / 2.4858
  • Monel 400 / 2.4360
  • CuNi 90/10 & 70/30

Technical Specifications & Tolerances

ParameterSpecification
Bend Radii3D, 5D, 6D, 8D, 10D (custom on request)
Size Range2" – 48" NPS (larger fabricated on enquiry)
ScheduleSCH 20 to XXS
Bend AngleAny angle up to 180°
OvalityControlled — typically ≤ 2.5% (tighter for piggable)
Wall Thinning (extrados)Minimum wall thickness maintained per specification
IntradosWrinkle-free
Tangent LengthAs specified by customer
Heat TreatmentPost-bend normalising / PWHT as required by grade
MTREN 10204 3.1 standard / 3.2 on request

Bends vs Elbows — which do you need?

Use a standard elbow (1.0D or 1.5D) for compact direction changes at a fixed radius. Use a long radius bend (3D–10D) where you need lower pressure drop, reduced turbulence, or a piggable geometry for pipeline inspection and cleaning. Always state the required radius (e.g. 5D), bend angle, tangent lengths and whether the line is piggable in your RFQ.

See buttweld elbows →

Request Bend Quote

Specify radius (3D–10D), angle, grade, size, tangent length