Delivering High Quality Hot Induction Pipe Bends in Stainless Steel, Carbon Steel, Alloy Steel, Inconel, Monel Etc.

API 5L Grade B Pipes Hot Induction Bends Manufacturer, based in India as per ISO 15590-1.

Popular Pipe Bends as API 5L Grade B, ASTM A106 Grade B Induction Bends, ASTM A106 Grade C Induction Bends, ASTM A333 Grade 6 Induction Bends, IS 3589 Fe330 Induction Bends, IS 3589 Fe410 Induction Bends, API 5L X42, X46, X52, X56, X60, X65 Etc.

Manufacturers specializing in API 5L Grade B Pipes Hot Induction Bending, such as Savoy Piping Inc., offer comprehensive services to meet the specific requirements of different industries. Their expertise and state-of-the-art facilities enable the production of precision bends with narrow dimensional tolerances, maintaining the highest quality standards.


API 5L Grade B Induction Bend

Savoy Piping Inc. offers a diverse range of API 5L Grade B Hot Induction Bend Pipes made of Carbon Steel. These Pipes cater to Industries such as Power, Oil and Gas, Construction, and Chemical.

Our Bending Process adheres to EN 15590-1 Standards and Customer Specifications, Ensuring Precise Manufacturing and Narrow Tolerances in Wall Thickness Reduction, Ovality, Bending Radius, and Angles. We can Bend both Seamless and Welded Pipes within a Bending Radius Range of 3D-10D.

The Hot Induction Bending Process Involves Locally Heating the Pipe for Easy Bending. We are pleased to Provide Quotations for induction bent Pipes such as API 5L Grade B, API 5L X42, API 5L X46, API 5L X52, API 5L X56, API 5L X60, API 5L X65 Etc. as well as pipes conforming to European norms. When subjected to Hot Bending (above 750°C), the Mechanical Properties of the Material are Preserved. Additionally, we offer Post-Bending Heat Treatments like Normalizing and Stress Relief Heat Treatment at our Facilities.

During the Final Inspection, we Conduct Dimensional and Visual Controls, Hydro Tests, and 100% Non-Destructive Testing on Welds to Ensure Minimal Tolerances on Bends.

What is Induction Bends ?

In Simple Terms An Induction Bend is a Curved Pipe Created through the Application of Heat and Bending Force using Induction Heating Technology.

Induction Bending is a Highly Advanced Metal Bending Process has Emerged as a Revolutionary Technique, Offering Exceptional Precision, Efficiency and Consistency. It offers a wide range of Applications and Effectively Overcomes the Limitations Often Encountered with Cold Bending Techniques, such as Distortion and Wall Thinning.

The Hot Induction Bend method Employs the Principle of Induction to Locally Heat a Pipe. This Creates a Concentrated Heat Zone along the Pipe. The Heated Section is Precisely Shaped into a bend using a Robust Frame and a Precise Drive System that Applies Pressure. Subsequently, the Bent Portion is Cooled Using Water or Air, Solidifying the Desired Bend Shape.

The Hot Induction Bending Process Involves the Utilization of Induction Heating Principles. A Localized Heat Band is created along the Length of the pipe, Resulting in a Narrow Zone of Heated Material. This Controlled Heating Ensures that only the Desired Section of the Pipe Reaches the Required Temperature for Bending, while the Rest of the Pipe Remains Unaffected.

Most Induction Bends are Manufactured with Tangent ends (straight sections) that are not Affected by the induction bending process. Field welds are made or Pipe pup Sections are Attached to the Unaffected Tangent Ends, allowing for Fitup Similar to that found when welding Straight Sections of Pipe Together.

Induction Bends come in Standard Bend Angles (e.g. 45°, 90°, etc.) or can be Custom Made to Specific Bend Angles. Compound bends (out-of-plane) bends in a Single Joint of Pipe can also be Produced. The bend radius is Specified as a Function of the Diameter. For example, common Bend Radius for Induction Bends are 3D, 5D and 7D, where D is the Nominal Pipe Diameter

API 5L Grade B Hot Induction Bends Manufacturing Range

Hot Induction Bend Pipe Type Seamless / Welded / ERW / LSAW / SSAW / EFW
Hot Induction Bend Pipe Diameter 4” – 48”
Hot Induction Bend Pipe Thickness Upto 60 mm
Hot Induction Bend Bending Radius 2D – 10D ( Max. R =9754 mm)
Hot Induction Bend Bending Angle 0° – 180°
Hot Induction Bend Angle Tolerance ± 0.5°
Hot Induction Bend Radius Tolerance ≤ 5 mm
Hot Induction Bend Ovality At Ends ± 1%
Hot Induction Bend Ovality on Body 4D & above to 6%
Hot Induction Bend Wall Thinning 4D & above ≤ 8%
Hot Induction Bend Approval RINA, PED-23, ISO 9001, IBR, EIL, OHSAS
Hot Induction Bend Manufacturing Standard ISO 15590-1 Induction Bends – Petroleum and Natural Gas Industries Got Bends, Fittings and Flanges for Pipeline Transportation Systems AS 2885 – Gas and Liquid Petroleum
DNV-OS-F101 – Offshore Standard for Submarine Pipeline Systems
ASME B31.1 – Power piping
ASME B31.3 – Process piping
ASME B31.4 – Pipeline Transportation Systems for Liquids and Slurries
ASTM A403- ASME SA403 – Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings
ASME B16.9 – Factory-Made Wrought Fittings Buttwelding
ASME B16.25 – Buttwelding Ends ASME B16.28 – Wrought Steel Short Radius Elbows and Buttwelding Returns
MSS SP-43 – Wrought and Fabricated Butt-Welding Fittings for Low Pressure, Corrosion Resistant Applications
ASME B16.49 – Factory-made Carbon Steel Pipe bend
Pipe Raw Material for Hot Induction Bends Carbon Steel Pipes (API 5L Gr.B / ASTM A106 Gr.B / A671 CC60, CC65, CC70 / A672 C60, C65, C70 / IS 3589 FE350, FE410)
High Strength Steel Pipes (API 5L X42, X52, X56, X60, X65, X70) in PSL 1 and PSL 2
Low Temperature Alloy Steel (ASTM A333 Gr.6)
Alloy Steel Chrome Moly Alloys (ASTM A335 Grade P5, P9, P11, P22, P91 / A691)
Stainless Steel Pipes (ASTM A312 304, 304L, 316, 316L, 321 etc)
Duplex & Super duplex Steel, including 22% Cr (UNS S31803) & 25% Cr (UNS S32750/60)
High Chrome Steel Pipes (ASTM A335, P11, P22, P91)
High Nickel High Chrome Steel Pipes (Inconel / Monel / SMO 254 / Hastelloy C22, C276)
Cladded Pipes
All Pipes as per ASME, ASME, DIN & EN Standards
Hot Induction Bend Post-Bending Heat Treatment Normalizing: This treatment is commonly used for carbon steels like ASTM A106 Gr. B, A333 Gr. 6, and API 5L X52.
Normalizing and Tempering: Primarily applied to materials with a higher chromium content, such as ASTM A335 P11 and P22, among others.
Quenching and Tempering: This Post-Bending Treatment is suitable for High Yield Materials like API 5L X65.
Solution Annealing: This Process can be Applied to Stainless and Duplex Steels, such as 304, 304L, 316L, UNS S31803 and UNS S32760.
Hot Induction Bend Testing & Inspection Mechanical Testing, Universal Testing Machine, Charpy Testing, Hardness Tester, Hydro Testing, Beveling Machine, Thickness Gauge, Non-destructive Testing ( X-ray/UTI/MPI ), Microscope for Metallographic Analysis, Spectrometer for Chemical Analysis, Corrosion Testing, Hydrogen-induced Cracking (HIC), Sulfide Stress Corrosion Cracking (SSCC)
Hot Induction Bend Coating Fusion Bonded Epoxy Coating(FBE Coating), 3LPE Coating (Three Layer Polyethylene), 3LPP Coating (Three Layer Polypropylene), Any Poweder & Liquid Epoxy Coating, Internal & External Coating, Food Grade Epoxy Coatings, Anti-rust painting

Features of API 5L Grade B Hot Induction Bends

Induction Bending offers Numerous Advantages that make it a Preferred choice for Pipe Nending Applications. Firstly, it ensures Improved Quality with Precise Dimensional Controls and accuracy in terms of Radius, Angle, Ovality, and Wall thinning. The process results in uniform Hardness and a Better Surface Finish, Eliminating Pipe Wrinkles.

In addition, Induction Bending Provides Processing Flexibility and can be applied to a wide range of Materials such as Carbon steel, Alloy steel, and Stainless steel. It allows for the Production of Multiple bends and enables the Creation of Precise customized Pipe bends, Saving both Time and Effort. Unlike other bending methods, Induction Bending does not require Sand Filling or Insertion of Inner mandrels, Significantly Reducing Bending Time.

Another Significant Advantage is the Integrity it maintains in the Pipe Work. Induction bends are piggable, meaning they allow for Easy Passage of cleaning devices through the Pipeline, Reducing the need for welding in many Applications. Moreover, the large Radius of Induction Bends Enhances Fluid Flow, Promoting Efficient Operation and Minimizing Friction, wear, and Pump Energy Consumption.

From a Cost Perspective, Induction Bending proves to be Cost-efficient as it Eliminates the need for standard components like Elbows, Reducing costs Associated with Materials. It also replaces Elbows with Larger Radius Bends where appropriate, resulting in Reduced friction, Wear, and pump energy consumption. By Decreasing the number of welds, particularly at Critical points, induction Bending Enhances Pressure and Stress Absorption, thus reducing the need for Costly Non-Destructive testing like X-ray Examination of Welds.

Furthermore, induction bending reduces the inventory of Elbows and standard bends, making it easier to maintain a Smaller Stock. Straight Pipes, which are Readily Available, can be bent Faster and at Lower Costs Compared to Elbows or Standard Components. The process also requires Minimal Tool requirements, Eliminating the need for Thorns or Mandrels used in Cold Bending.

Lastly, Induction Bending is a Clean process that does not require Lubrication, and the water used for cooling can be recycled, contributing to a more environmentally friendly operation. Overall, the various advantages of Induction Bending make it a preferred choice for Industries seeking Improved Quality, Cost Efficiency, and enhanced Fluid flow in their Piping Systems.

Chemical Composition of API 5L Grade B Induction Bends

Steel Grade Mass fraction, % based on heat and product analyses a,g
C Mn P S V Nb Ti
max b max b max max max max max
Seamless Pipe
A 0.22 0.9 0.3 0.3
B 0.28 1.2 0.3 0.3 c,d c,d d
X42 0.28 1.3 0.3 0.3 d d d
X46 0.28 1.4 0.3 0.3 d d d
X52 0.28 1.4 0.3 0.3 d d d
X56 0.28 1.4 0.3 0.3 d d d
X60 0.28 e 1.40 e 0.3 0.3 f f f
X65 0.28 e 1.40 e 0.3 0.3 f f f
X70 0.28 e 1.40 e 0.3 0.3 f f f
Welded Pipe
A 0.22 0.9 0.3 0.3
B 0.26 1.2 0.3 0.3 c,d c,d d
X42 0.26 1.3 0.3 0.3 d d d
X46 0.26 1.4 0.3 0.3 d d d
X52 0.26 1.4 0.3 0.3 d d d
X56 0.26 1.4 0.3 0.3 d d d
X60 0.26 e 1.40 e 0.3 0.3 f f f
X65 0.26 e 1.45 e 0.3 0.3 f f f
X70 0.26e 1.65 e 0.3 0.3 f f f
a. Cu ≤ = 0.50% Ni; ≤ 0.50%; Cr ≤ 0.50%; and Mo ≤ 0.15%,
b. For each reduction of 0.01% below the specified maximum concentration for carbon, an increase of 0.05% above the specified maximum concentration for Mn is permissible, up to a maximum of 1.65% for grades ≥ L245 or B, but ≤ L360 or X52; up to a maximum of 1.75% for grades > L360 or X52, but < L485 or X70; and up to a maximum of 2.00% for grade L485 or X70.,
c. Unless otherwise agreed NB + V ≤ 0.06%,
d. Nb + V + TI ≤ 0.15%,
e. Unless otherwise agreed.,
f. Unless otherwise agreed, NB + V = Ti ≤ 0.15%,
g. No deliberate addition of B is permitted and the residual B ≤ 0.001%

Chemical Composition of API 5L Grae B Induction Bends PSL2 Pipe with t ≤ 0.984”

Steel Grade Mass fraction, % based on heat and product analyses Carbon Equiv a
C Si Mn P S V Nb Ti Other CE IIW CE Pcm
max b max max b max max max max max max max
Seamless and Welded Pipe
BR 0.24 0.4 1.2 0.025 0.015 c c 0.04 e,l 0.43 0.25
X42R 0.24 0.4 1.2 0.025 0.015 0.06 0.05 0.04 e,l 0.43 0.25
BN 0.24 0.4 1.2 0.025 0.015 c c 0.04 e,l 0.43 0.25
X42N 0.24 0.4 1.2 0.025 0.015 0.06 0.05 0.04 e,l 0.43 0.25
X46N 0.24 0.4 1.4 0.025 0.015 0.07 0.05 0.04 d,e,l 0.43 0.25
X52N 0.24 0.45 1.4 0.025 0.015 0.1 0.05 0.04 d,e,l 0.43 0.25
X56N 0.24 0.45 1.4 0.025 0.015 0.10f 0.05 0.04 d,e,l 0.43 0.25
X60N 0.24f 0.45f 1.40f 0.025 0.015 0.10f 0.05f 0.04f g,h,l As agreed
BQ 0.18 0.45 1.4 0.025 0.015 0.05 0.05 0.04 e,l 0.43 0.25
X42Q 0.18 0.45 1.4 0.025 0.015 0.05 0.05 0.04 e,l 0.43 0.25
X46Q 0.18 0.45 1.4 0.025 0.015 0.05 0.05 0.04 e,l 0.43 0.25
X52Q 0.18 0.45 1.5 0.025 0.015 0.05 0.05 0.04 e,l 0.43 0.25
X56Q 0.18 0.45f 1.5 0.025 0.015 0.07 0.05 0.04 e,l 0.43 0.25
X60Q 0.18f 0.45f 1.70f 0.025 0.015 g g g h,l 0.43 0.25
X65Q 0.18f 0.45f 1.70f 0.025 0.015 g g g h,l 0.43 0.25
X70Q 0.18f 0.45f 1.80f 0.025 0.015 g g g h,l 0.43 0.25
X80Q 0.18f 0.45f 1.90f 0.025 0.015 g g g i,j As agreed
X90Q 0.16f 0.45f 1.9 0.02 0.01 g g g j,k As agreed
X100Q 0.16f 0.45f 1.9 0.02 0.01 g g g j,k As agreed
Welded Pipe
BM 0.22 0.45 1.2 0.025 0.015 0.05 0.05 0.04 e,l 0.43 0.25
X42M 0.22 0.45 1.3 0.025 0.015 0.05 0.05 0.04 e,l 0.43 0.25
X46M 0.22 0.45 1.3 0.025 0.015 0.05 0.05 0.04 e,l 0.43 0.25
X52M 0.22 0.45 1.4 0.025 0.015 d d d e,l 0.43 0.25
X56M 0.22 0.45f 1.4 0.025 0.015 d d d e,l 0.43 0.25
X60M 0.12f 0.45f 1.60f 0.025 0.015 g g g h,l 0.43 0.25
X65M 0.12f 0.45f 1.60f 0.025 0.015 g g g h,l 0.43 0.25
X70M 0.12f 0.45f 1.70f 0.025 0.015 g g g h,l 0.43 0.25
X80M 0.12f 0.45f 1.85f 0.025 0.015 g g g i,j .043f 0.25
X90M 0.1 0.55f 2.10f 0.02 0.01 g g g i,j 0.25
X100M 0.1 0.55f 2.10f 0.02 0.01 g g g i,j 0.25
a. SMLS t>0.787”, CE limits shall be as agreed. The CEIIW limits applied fi C > 0.12% and the CEPcm limits apply if C ≤ 0.12%,
b. For each reduction of 0.01% below the specified maximum for C, an increase of 0.05% above the specified maximum for Mn is permissible, up to a maximum of 1.65% for grades ≥ L245 or B, but ≤ L360 or X52; up to a maximum of 1.75% for grades > L360 or X52, but < L485 or X70; up to a maximum of 2.00% for grades ≥ L485 or X70, but ≤ L555 or X80; and up to a maximum of 2.20% for grades > L555 or X80.,
c. Unless otherwise agreed Nb = V ≤ 0.06%,
d. Nb = V = Ti ≤ 0.15%,
e. Unless otherwise agreed, Cu ≤ 0.50%; Ni ≤ 0.30% Cr ≤ 0.30% and Mo ≤ 0.15%,
f. Unless otherwise agreed,
g. Unless otherwise agreed, Nb + V + Ti ≤ 0.15%,
h. Unless otherwise agreed, Cu ≤ 0.50% Ni ≤ 0.50% Cr ≤ 0.50% and MO ≤ 0.50%,
i. Unless otherwise agreed, Cu ≤ 0.50% Ni ≤ 1.00% Cr ≤ 0.50% and MO ≤ 0.50%,
j. B ≤ 0.004%,
k. Unless otherwise agreed, Cu ≤ 0.50% Ni ≤ 1.00% Cr ≤ 0.55% and MO ≤ 0.80%,
l. For all PSL 2 pipe grades except those grades with footnotes j noted, the following applies. Unless otherwise agreed no intentional addition of B is permitted and residual B ≤ 0.001%.

Mechanical properties of API 5L Induction Bends in PSL1 and PSL2

Pipe Grade Tensile Properties – Pipe Body of SMLS and Welded Pipes PSL 1 Seam of Welded Pipe
Yield Strength a Tensile Strength a Elongation Tensile Strength b
Rt0,5 PSI Min Rm PSI Min (in 2in Af % min) Rm PSI Min
A 30,500 48,600 c 48,600
B 35,500 60,200 c 60,200
X42 42,100 60,200 c 60,200
X46 46,400 63,100 c 63,100
X52 52,200 66,700 c 66,700
X56 56,600 71,100 c 71,100
X60 60,200 75,400 c 75,400
X65 65,300 77,500 c 77,500
X70 70,300 82,700 c 82,700
a. For intermediate grade, the difference between the specified minimum tensile strength and the specified minimum yield for the pipe body shall be as given for the next higher grade.
b. For the intermediate grades, the specified minimum tensile strength for the weld seam shall be the same as determined for the body using foot note a.
Where C is 1 940 for calculation using Si units and 625 000 for calculation using USC units
Axc is the applicable tensile test piece cross-sectional area, expressed in square millimeters (square inches) , as follows
– For circular cross-section test pieces, 130mm2 (0.20 in2) for 12.7 mm (0.500 in) and 8.9 mm (.350 in) diameter test pieces; and 65 mm2 (0.10 in2) for 6.4 mm (0.250in) diameter test pieces.
– For full-section test pieces, the lesser of a) 485 mm2 (0.75 in2) and b) the cross-sectional area of the test piece, derived using the specified outside diameter and the specified wall thickness of the pipe, rounded to the nearest 10 mm2 (0.10in2)
– For strip test pieces, the lesser of a) 485 mm2 (0.75 in2) and b) the cross-sectional area of the test piece, derived using the specified width of the test piece and the specified wall thickness of the pipe, rounded to the nearest 10 mm2 (0.10in2)
U is the specified minimum tensile strength, expressed in megapascals (pounds per square inch)

Pipe Grade Tensile Properties – Pipe Body of SMLS and Welded Pipes PSL 2 Seam of Welded Pipe
Yield Strength a Tensile Strength a Ratio a,c Elongation Tensile Strength d
Rt0,5 PSI Min Rm PSI Min R10,5IRm (in 2in) Rm (psi)
Af %
Minimum Maximum Minimum Maximum Maximum Minimum Minimum
BR, BN,BQ,BM 35,500 65,300 60,200 95,000 0.93 f 60,200
X42,X42R,X2Q,X42M 42,100 71,800 60,200 95,000 0.93 f 60,200
X46N,X46Q,X46M 46,400 76,100 63,100 95,000 0.93 f 63,100
X52N,X52Q,X52M 52,200 76,900 66,700 110,200 0.93 f 66,700
X56N,X56Q,X56M 56,600 79,000 71,100 110,200 0.93 f 71,100
X60N,X60Q,S60M 60,200 81,900 75,400 110,200 0.93 f 75,400
X65Q,X65M 65,300 87,000 77,600 110,200 0.93 f 76,600
X70Q,X65M 70,300 92,100 82,700 110,200 0.93 f 82,700
X80Q,X80M 80,.500 102,300 90,600 119,700 0.93 f 90,600
a. For intermediate grade, refer to the full API5L specification.
b. for grades > X90 refer to the full API5L specification.
c. This limit applies for pies with D> 12.750 in
d. For intermediate grades, the specified minimum tensile strength for the weld seam shall be the same value as was determined for the pipe body using foot a.
e. for pipe requiring longitudinal testing, the maximum yield strength shall be ≤ 71,800 psi
Where C is 1 940 for calculation using Si units and 625 000 for calculation using USC units
Axc is the applicable tensile test piece cross-sectional area, expressed in square millimeters (square inches) , as follows
– For circular cross-section test pieces, 130mm2 (0.20 in2) for 12.7 mm (0.500 in) and 8.9 mm (.350 in) diameter test pieces; and 65 mm2 (0.10 in2) for 6.4 mm (0.250in) diameter test pieces.
– For full-section test pieces, the lesser of a) 485 mm2 (0.75 in2) and b) the cross-sectional area of the test piece, derived using the specified outside diameter and the specified wall thickness of the pipe, rounded to the nearest 10 mm2 (0.10in2)
– For strip test pieces, the lesser of a) 485 mm2 (0.75 in2) and b) the cross-sectional area of the test piece, derived using the specified width of the test piece and the specified wall thickness of the pipe, rounded to the nearest 10 mm2 (0.10in2)
U is the specified minimum tensile strength, expressed in megapascals (pounds per square inch
g. Lower values fo R10,5IRm may be specified by agreement
h. for grades > x90 refer to the full API5L specification.

API 5L Grade B Pipe Hot Induction Bend is used in the Following Applications:-

We Cater to Diverse Industries, including Oil and Gas, where Hot Induction Bends find Extensive Applications. Our Hot Bending Solutions meet Stringent Specifications and Industry Standards, Making them Ideal for High-Temperature Pipe Bending in Demanding Environments - Oil and Gas Equipments, Offshore Technology, Seawater Desalination Plants, Chemical Industry, Bridges, Storage Tanks, Medical Industry, Civil Engineering, Pressure Vessels, Reactor Tanks, and Heat Exchangers, Rotors, Impellers and Shafts, Power Plants, Petrochemical, Shipbuilding Industry, Pumping Stations, Nuclear Power.

Supplying API 5L Grade B Pipe Hot Induction Bends to Countries -

We Export API 5L Grade B Pipe Hot Induction Bends to Saudi Arabia, Iran, Iraq, United Arab Emirates, Qatar, Bahrain, Oman, Kuwait, Turkey, Egypt, Yemen, Syria, Israel, Jordan, Cyprus, Singapore, Malaysia, Indonesia, Thailand, Vietnam, South Korea, Japan, Sri Lanka, Maldives, Bangladesh, Mayanmar, Taiwan, Cambodia, Argentina, Bolivia, Brazil, Chile, Venezuela, Colombia, Ecuador, Guyana, Paraguay, Uruguay, United States of America, Canada, Mexico, Panama, Costa Rica, Puerto Rica, Trinidad And Tobago, Jamaica, Bahamas, Denmark, Russia, Norway, Germany, France, Italy, United Kingdom, Spain, Ukraine, Netherland, Belgium, Greece, Czech Republic, Portugal, Hungary, Albania, Austria, Switzerland, Slovakia, Finland, Ireland, Croatia, Slovenia, Malta, Nigeria, Algeria, Angola, South Africa, Libya, Egypt, Sudan, Equatorial Guinea, The Republic Of Congo, Gabon, Europe, Africa, Asia, North America, South America, Middle East, Far East.etc

Savoy Piping Inc., is a Trusted Induction Bend Suppliers, we Prioritize Customer Satisfaction and Ensure On-Time Delivery of Superior Hot Induction Bending Solutions. Our Expertise in Hot Bending Techniques Combined with a Wide Range of High-Quality Materials Allows us to Provide Tailored Solutions for your Unique Requirements.

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