TOKO TECH
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Nickel Alloy Seamless Pipe

Inconel 625, Incoloy 825, Hastelloy C276/C22, Monel 400 seamless pipes for extreme corrosion environments.

Nickel alloy pipe production
Nickel alloy pipe detail
Nickel alloy pipe packaging

Overview

TOKO TECH specializes in premium nickel alloy seamless pipes and tubes for the most aggressive environments where standard stainless steel cannot perform. Our inventory covers the full range of nickel-based alloys — Inconel, Incoloy, Hastelloy, and Monel — in sizes from 1/8" to 12". These alloys deliver unmatched corrosion resistance in acids, chlorides, high temperatures, and seawater.

Explore by Material

Select a specific material grade below for detailed specifications, mechanical properties, and applications:

Inconel 625 Seamless Pipe (UNS N06625)
ASTM B444 Inconel 625 seamless pipe for extreme corrosion and high temperature. PREN >45, service to 980°C. Subsea, chemical, aerospace applications.
Incoloy 825 Seamless Pipe (UNS N08825)
ASTM B423 Incoloy 825 pipe with copper addition for sulfuric acid resistance. Chemical processing, pickling, pollution control.
Hastelloy C-276 Seamless Pipe (UNS N10276)
ASTM B622 Hastelloy C-276 pipe — the most universally corrosion-resistant nickel alloy. Hot acids, wet chlorine, hypochlorite. Chemical processing.
Monel 400 Seamless Pipe (UNS N04400)
ASTM B165 Monel 400 pipe — the classic marine alloy. Exceptional seawater corrosion resistance, HF acid service. Ni-Cu alloy (67% Ni, 23% Cu).

Key Features & Quality Control

Full mill test certification to EN 10204 3.1 or 3.2
Positive material identification (PMI) on every piece
Intergranular corrosion testing (ASTM G28) for C-276
Tight chemistry control for NORSOK and NACE compliance
Ultrasonic and eddy current volumetric NDE
Hydrostatic testing at 1.5× rated working pressure
Precision cut lengths from 2m to 12m available

Specifications

ProcessMaterialOD RangeWT RangeStandard
SeamlessInconel 625 (UNS N06625)3 – 219mm (1/8" – 8")0.5 – 30mmASTM B444 / B704
SeamlessIncoloy 825 (UNS N08825)3 – 168mm (1/8" – 6")0.5 – 25mmASTM B423 / B704
SeamlessHastelloy C-276 (UNS N10276)3 – 114mm (1/8" – 4")0.5 – 20mmASTM B622 / B619
SeamlessMonel 400 (UNS N04400)3 – 168mm (1/8" – 6")0.5 – 25mmASTM B165 / B163
WeldedInconel 625 / Hastelloy C27612.7 – 610mm (1/2" – 24")0.5 – 10mmASTM B705 / B626

Typical Applications

Chemical Processing

Reaction vessels, distillation columns, and piping systems handling hot concentrated acids — sulfuric, hydrochloric, phosphoric, and nitric.

Marine & Offshore

Seawater piping, heat exchangers, and splash zone components where Monel 400 and Inconel 625 provide decades of service without corrosion failure.

Aerospace

Inconel 625 ducting, exhaust systems, and thrust reverser components requiring high-temperature oxidation resistance and fatigue strength.

Flue Gas Desulfurization

Hastelloy C-276 absorbers, ducts, and scrubbers resisting the combined attack of hot sulfuric acid, chlorides, and wet SO₂ in FGD systems.

Applicable Standards

ASTM B444ASTM B423ASTM B622ASTM B165ASTM B704ASTM B619NACE MR0175NORSOK M-650

Explore Materials Used in This Product

Review detailed material data, chemical composition, and mechanical properties for every grade we offer:

304/304L316/316LDuplex 2205Super Duplex 2507

Need a Quote for Nickel Alloy Seamless Pipe?

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