A350 Flanges

A350 Flanges Image

Gopal Forge Industries™ manufactures A350 Flanges for demanding industrial piping applications where strength, toughness and dependable performance are essential. ASTM A350 covers forged carbon and low-alloy steel flanges and forged fittings intended for pressure applications, particularly where notch toughness requirements are important. Our manufacturing approach emphasizes controlled forging, heat treatment, machining and dimensional inspection to produce flanges suitable for critical service conditions. Depending on project requirements, A350 Flanges can be supplied in different configurations, pressure classes, sizes and facing options. They are commonly integrated with pipe fittings, valves, pipes and other components used in process and high-pressure piping systems.

A350 Flanges, A350 Flanges Manufacturers, A350 Flanges Suppliers, A350 Flanges Stockists, A350 Flanges Exporters

As experienced A350 Flanges exporters, Gopal Forge Industries™ supports international industrial projects requiring properly manufactured and documented forged flange components. A350 grades are selected for applications where a combination of mechanical strength and impact toughness is important, including low-temperature and pressure-service environments. Export orders can be prepared according to applicable dimensional standards and customer specifications, with attention to marking, surface condition, packaging and inspection documentation. These flanges are used across sectors such as oil and gas, petrochemical, chemical processing, power generation, refineries and heavy engineering. Their compatibility with buttweld fittings, valves and process piping makes them practical for complete industrial piping solutions.

Gopal Forge Industries™ supplies A350 Flanges according to application requirements, drawings, dimensional specifications and applicable standards. Selection of the appropriate A350 grade should consider design temperature, pressure, fluid service, impact requirements and the governing piping code. Depending on the project, flange configurations may include Weld Neck, Slip-On, Blind, Socket Weld, Threaded and Lap Joint types. Proper machining of the flange face and bolt-hole pattern is particularly important for achieving reliable assembly and sealing. For systems involving carbon steel elbow, reducers, tees and other forged or buttweld components, correctly specified A350 Flanges help create a secure and maintainable piping connection.

As A350 Flanges stockists, Gopal Forge Industries™ can support industrial procurement requirements involving commonly demanded sizes, pressure classes and flange configurations, subject to availability. Stock planning is particularly useful for maintenance contractors, fabrication companies and engineering projects where replacement components may be required within practical delivery schedules. Before procurement, buyers should verify the required material grade, flange standard, pressure class, facing, dimensions and inspection requirements against their project documentation. A properly matched flange can help reduce installation complications and improve connection reliability in demanding piping assemblies.

Gopal Forge Industries™ manufactures A350 Flanges with attention to the production controls required for pressure-bearing forged components. Forging develops the material structure while subsequent heat treatment is selected according to the applicable material grade and specification. Machining operations establish the required flange dimensions, bore, bolt holes and facing finish, followed by dimensional and visual checks. Where specified by the purchase order, additional testing and certification can be arranged. A350 Flanges may be used alongside stainless steel elbow, alloy steel fittings, valves and specialized piping components when the complete system has been properly engineered for its operating conditions.

A350 Flanges Manufacturers in India, A350 Flanges Suppliers in India, A350 Flanges Stockists in India, A350 Flanges Exporters in India

A350 Flanges Specification

Product Name ASTM A350 Flanges
Technical Description Forged carbon and low-alloy steel flanges manufactured according to ASTM A350/A350M for pressure piping components requiring notch toughness and impact testing, particularly in low-temperature service.
Available Sizes NPS 1/2" to 24" as per ASME B16.5; larger diameter flanges available as per ASME B16.47 and applicable specifications
Standards ASTM A350/A350M – Carbon and Low-Alloy Steel Forgings
ASME SA350 – Carbon and Low-Alloy Steel Forgings
ASME B16.5 – Pipe Flanges and Flanged Fittings
ASME B16.47 – Large Diameter Steel Flanges, where applicable
Material Grades ASTM A350 LF1
ASTM A350 LF2 Class 1
ASTM A350 LF2 Class 2
ASTM A350 LF3
Other A350 grades as specified by application and purchase requirements
Pressure Ratings Class 150, Class 300, Class 400, Class 600, Class 900, Class 1500 and Class 2500, subject to applicable size, temperature and ASME pressure-temperature ratings
Flange Types Weld Neck, Slip-On, Blind, Socket Weld, Threaded, Lap Joint and Orifice Flanges
Facing Types Raised Face (RF), Flat Face (FF) and Ring Type Joint (RTJ)
Dimensions ASME B16.5 for NPS 1/2" to 24"; ASME B16.47 for applicable large diameter flanges
Manufacturing Process Forged
Heat Treatment Heat treated in accordance with ASTM A350/A350M requirements and the applicable material grade
Impact Testing Charpy V-Notch impact testing as required by ASTM A350/A350M and the specified material grade and service conditions
Applications Oil & Gas, Petrochemical, Refineries, Chemical Processing, LNG, Low-Temperature Piping, Pressure Vessels, Power Generation, Cryogenic Service and General Industrial Piping

A350 Flanges Chemical Composition

Grade C (%) Mn (%) Si (%) P (%) S (%) Cr (%) Ni (%) Mo (%) Cu (%) V (%) Cb (%)
A350 LF2 Class 1 0.30 max 0.60–1.35 0.15–0.30 0.030 max 0.040 max 0.30 max 0.40 max 0.12 max 0.40 max 0.08 max 0.02 max

A350 Flanges Mechanical Properties

Grade Tensile Strength (MPa) Yield Strength (MPa) Elongation (%) Reduction of Area (%) Impact Test
A350 LF2 Class 1 485 min 250 min 25 min 45 min Charpy V-Notch
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FAQ's

A350 Flanges are forged carbon and low-alloy steel flanges manufactured according to ASTM A350/A350M requirements. They are commonly used in pressure-containing piping systems where strength, toughness, and suitability for low-temperature service are required.

Common A350 Flange configurations include:
  • Weld Neck Flanges
  • Slip-On Flanges
  • Blind Flanges
  • Socket Weld Flanges
  • Threaded Flanges
  • Lap Joint Flanges

A350 Flanges are manufactured according to ASTM A350/A350M material requirements, while dimensions and pressure ratings may be specified according to applicable standards such as ASME B16.5. The appropriate pressure class depends on flange size, material grade, temperature, design pressure, and project requirements.

A350 Flanges provide good strength, toughness, and resistance to impact at specified low temperatures. They are suitable for demanding pressure-containing applications and can be supplied in different material grades and flange configurations according to project requirements.

A350 Flanges are commonly used in oil and gas, petrochemical, refinery, chemical processing, power generation, gas processing, and industrial piping systems where pressure containment and low-temperature toughness are important.

Application of A350 Flanges

Latest Price List of A350 Flanges

The latest A350 Flanges price depends on material grade, nominal size, pressure class, flange type, facing, wall thickness, machining requirements, heat treatment, testing, certification, quantity and prevailing alloy/carbon steel market conditions. Industrial quotations can therefore vary considerably between standard and customized requirements. Gopal Forge Industries™ provides project-based pricing based on current raw-material and manufacturing conditions rather than relying on a fixed online price. For an accurate quotation, buyers should provide the required grade, size, class, flange type, standard, quantity and documentation requirements.

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