A 90° long radius elbow cladding is a process where a corrosion-resistant or wear-resistant material is applied to the inner surface of a 90-degree elbow with a long radius bend. This is typically done to extend the service life of the elbow in environments where the fluid or material passing through it is corrosive, abrasive, or causes excessive wear.

Forming Process:

FNS applies advanced automated nickel-based alloy cladding technology to the inner surface of 90° long radius elbows. Using precision-controlled welding processes such as GTAW, PTA, and laser cladding, Alloy 625 is uniformly deposited to enhance the elbow’s resistance to corrosion and high-temperature degradation in aggressive service environments.

Size Range:4″ – 60″ elbows (custom sizes available upon request).

Base Material:

Carbon steel, low alloy steel, stainless steel, pipeline-grade steels.

Cladding Material:

Nickel-based Alloy 625 — renowned for its exceptional resistance to chloride-induced pitting, crevice corrosion, and stress corrosion cracking, especially in seawater, acidic, and high-temperature environments.

90° Long Radius Elbow Cladding

Applications:

Petrochemical, offshore oil & gas, subsea pipeline systems, marine and shipbuilding, chemical processing, power generation (including waste heat recovery), and other demanding environments involving high corrosion and pressure.

Product Features:

FNS cladded elbows feature interference bonding between the substrate and the cladding layer, ensuring:

Outstanding corrosion resistance in chloride- and acid-rich environments

Excellent mechanical strength and thermal stability

Low dilution rates, ensuring consistent alloy properties

Uniform thickness and smooth surface finish

Long service life under cyclic loading and high pressure

These elbows are engineered to meet the stringent performance requirements of critical industrial systems.

Capacity:

With over 90 sets of automated welding and cladding equipment, FNS has an annual production capacity exceeding 450 tons of corrosion-resistant cladded pipe fittings. All products are manufactured under strict quality control systems and are available with full inspection documentation.