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Carbon Steel Pipe With Welded Flange For Pipeline Engineering

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PRODUCT DESCRIPTION

Welded Flange Steel Pipe

JYLONG offers a fully equipped modern fabrication workshop for the fabrication of steel pipe for sprinkler installations, commercial and residential buildings, construction, glasshouse, gas pipeline, solar mounts, etc.

Workshop Equipment includes:

Laser cutting
Plasma cutting
Automated saw
Automated welding machine
Mig welding
Roll groove machine
Threading machine
Pipe bender
Hydrostatic pressure test
Electrostatic painting
Hot dipped galvanized
Electro-galvanizing

Welded flange steel pipe consists of steel pipe body and flange connected by welding process. We adopt reliable full penetration welding technology to ensure stable connection, excellent pressure resistance and tight sealing performance.

Our welded flange steel pipes are mainly made of carbon steel, stainless steel and galvanized steel, complying with ASTM A106, ASTM A53, GB and other international standards. Multiple pressure classes including PN10, PN16, PN25 are available. Custom diameter, wall thickness and length can be produced according to customer drawings.

Widely used in fire protection systems, water supply pipelines, oil & gas transmission, chemical industry, municipal engineering and other industrial piping projects. We support OEM & ODM, export packing with plywood cases for safe transportation.

Core Advantages

High Structural Strength & Pressure ResistanceFull penetration welding between steel pipe and flange ensures high joint strength, suitable for PN16 / PN25 medium & high pressure piping systems. Resist water hammer, pressure fluctuation and pipeline vibration.
Excellent Leak-tight Sealing PerformanceIntegrated welding structure avoids leakage risks existing in threaded connection. Match RF flange face with gaskets to achieve stable sealing for long-term continuous operation.
Easy Installation & Convenient MaintenanceFlange bolted connection enables fast on-site assembly, easy disassembly for inspection, repair and pipeline modification. Greatly shorten construction cycle.
Wide Application CompatibilityCustomizable length, diameter and coating. Available for fire protection, water supply, industrial fluid transmission, municipal engineering.
Stable Welding Quality & Long Service LifeAdopt professional arc welding process, strict weld inspection. Anti-rust paint / epoxy coating optional to improve corrosion resistance.
Customized Production & Export-ready PackingSupport OEM & ODM according to drawings. Packed in export plywood wooden cases to avoid transit damage.

Technical Parameters

Product Name: Welded Flange Steel Pipe / Flange Welded Steel Pipe
Material: Carbon steel Q235B, ASTM A53, ASTM A106 Grade B; Stainless steel 304 / 316L (optional)
Pipe Type: ERW welded pipe / seamless steel pipe /stainless steel pipe
Flange Material: Forged carbon steel ASTM A105
Flange Standard: EN 1092-1, HG/T20592, ASME B16.5
Flange Pressure Class: PN10, PN16, PN25; Class150, Class300
Sealing Face: RF (Raised Face) as standard; FF optional
Size Range: DN40 ~ DN600 (1.5" ~ 24")
Wall Thickness: SCH40, SCH80, customized wall thickness
Length: 3m / 6m / 12m, custom cut length available
Surface Treatment: Black anti-rust paint, epoxy coating, hot-dip galvanized
Working Medium: Water, fire fighting fluid, general industrial liquid
Working Temperature: -20℃ ~ +120℃
Welding Standard: Full penetration fillet weld / butt weld, weld visual inspection available
Packing: Export plywood wooden case