Carbon Steel Plate Flange Dn50 A105 High Quality

Carbon Steel Plate Flange Dn50 A105 High Quality

Core Features

  • ASTM A105 Forged Carbon Steel: Manufactured from premium, fully killed carbon steel optimized specifically for high-density pressure systems. This material ensures robust structural integrity and high yield strength across continuous operational cycles.
  • DN50 / 2-Inch Nominal Pipe Sizing: Precision-machined to interface seamlessly with standard DN50 (2″ Nominal Pipe Size) infrastructure, ensuring exact slip-over clearance for standard commercial pipelines.
  • Forged Microstructural Integrity: Hot-forged from verified steel billets to eliminate internal gas pockets, voids, and porous defects. This compacts the grain flow, giving the plate ring exceptional resistance to sudden pressure surges.
  • Hubless, Space-Saving Configuration: Features a completely flat, collarless profile that slides directly over the end of the pipe. This architecture minimizes the component’s weight and cost while fitting easily into tight physical envelopes.
  • Double Fillet Weld Design: Attached via both internal and external fillet welds, creating a robust, leak-proof mechanical joint that evenly distributes structural strain and helps absorb systemic pipeline vibrations.

At Kriloha Gaskets & Hardware, we recognize that a pipeline’s performance depends entirely on the precision of its connections. Our High-Quality Carbon Steel DN50 A105 Plate Flanges represent our engineered answer for “High-Density-Joint-Security” and “Zero-Flexing-Integrity.” As a premier supplier of high-performance flow control and pipeline elements, Kriloha utilizes controlled hot-forging techniques to ensure that our hubless plate flanges deliver superior mechanical longevity compared to unpredictable, lower-cost cast alternatives.

The engineering of our ASTM A105 plate flange program is founded on Metallurgical-Traceability and Geometric-Perfection. By forcing the steel’s internal grain structure to trace the flat contour of the plate ring, our components offer exceptional tensile strength. This ensures the flange comfortably withstands high bolt-torque loads across its bolt circle without warping, bowing, or relaxing over time. At Kriloha, we precision-machine the flat sealing surface on advanced multi-axis CNC turning lines, finishing them with micro-grooved phonographic serrations that mechanically grip your choice of gasket sheets to resist blowout under sudden system pressure spikes.

Manufacturing and provisioning these critical utility connection pieces involves strict Dimensional Tolerance Checks, Volumetric Material Inspections, and Face Roughness ($R_a$) Calibration. We collaborate directly with your project engineering and facility maintenance teams to supply precise internal bores tailored to standard pipe outer diameters and unique wall-thickness schedules (such as Schedule 40 or Schedule 80 matching). By choosing Kriloha Gaskets & Hardware, you are investing in a “Future-Proof” industrial partnership that prioritizes your system’s lifetime reliability through superior carbon metallurgy and micro-tolerance engineering.

Primary Use Cases

  • Industrial Fluid & Gas Distribution: Ideal for main utility lines distributing industrial water, factory compressed air networks, and low-pressure utility gas loops.
  • Petroleum & Hydrocarbon Utilities: Reliable connection joints for non-corrosive hydrocarbon transport, fuel oil lines, and lubrication oil loops.
  • HVAC & Commercial Utility Risers: Budget-efficient, high-strength connections for commercial building risers, chilled water networks, and industrial condenser loops.
  • Water Treatment Infrastructures: Standard piping interfaces for municipal water filtration plants, non-potable water systems, and general drainage manifolds.
  • Modular Process Skids: Compact structural flanges used to join prefabricated piping manifolds to flat-faced valves, strainers, and storage tanks.

Frequently Asked Questions (FAQs)

What makes the ASTM A105 forged material designation “High Quality”?

ASTM A105 is the industry standard for forged carbon steel piping components used in ambient- and higher-temperature service. “High Quality” signifies that the steel is fully killed and hot-forged, rather than cast. Forging aligns the metal grains with the shape of the flange, eliminating internal micro-voids and providing vastly superior burst strength and impact resistance.

Why specify a hubless “Plate Flange” instead of a standard hubbed Slip-On flange for a DN50 line?

Because a plate flange completely lacks a raised collar or hub, it uses less raw material, making it significantly more compact, lightweight, and cost-effective. It provides a flat, space-saving profile that fits into tight spatial envelopes where bulkier hubbed flanges cannot be physically bolted.

What specific welding configuration is required to install an A105 plate flange?

A plate welding flange requires a standard double fillet weld setup for proper installation: one robust fillet weld around the rear side where the plate meets the outer diameter of the pipe wall, and a secondary fillet weld along the inside bore face where the pipe end sits flush with the flange face.

How is this carbon steel flange protected against environmental rust?

Because carbon steel is vulnerable to atmospheric oxidation, our high-quality A105 flanges come standard with a protective surface treatment. This typically includes a light black or yellow anti-rust lacquer, a rust-preventative oil finish, or electro-galvanization depending on your long-term storage and installation environment requirements.

Are Material Test Reports (MTRs) provided with these flanges?

At Kriloha Ltd., quality assurance is completely non-negotiable. Every shipment from our facility can be accompanied by comprehensive Material Test Reports (MTRs) confirming exact chemical compositions (Carbon, Manganese, Silicon content), hardness values, yield/tensile strength data, and explicit compliance with international industrial standards (such as ANSI B16.5 or EN 1092-1 dimensional templates).

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