TOKO TECH High-Performance Solutions for Extreme Temperature & Corrosive Environments

Product Overview

Nickel Alloy Seamless Straight Pipes are engineered for critical applications in oil & gas, chemical processing, aerospace, and nuclear industries. Manufactured from premium grades like Inconel 625, Hastelloy C-276, and Monel 400, and compliant with ASTM B444, ASTM B619, and ASME SB622 standards, these pipes deliver unmatched resistance to oxidation, pitting, and stress corrosion cracking in extreme conditions.

Product Specifications

1. Material & Manufacturing

· Grades: Inconel 600/625, Hastelloy C-22/C-276, Monel 400, Alloy 20

· Standards: ASTM B444/B619/B622, EN 10216-5, NACE MR0175

· Surface Finish: Annealed & Pickled, Polished (Ra≤0.8μm), Bead-Blasted

2. Dimensions & Tolerance

· Outer Diameter: 1/4" to 24" (DN6-DN600)

· Wall Thickness: SCH 5S to SCH 160 (0.5mm to 50mm)

· Length: Random (6-12m) or Cut-to-Size (Custom)

3. Performance

· Temperature Range: -200°C to 1200°C (Cryogenic to High-Temp)

· Pressure Rating: Up to 10,000 PSI (ASME B31.3 Compliance)

· Corrosion Resistance: HCl, H2S, Chlorides, Seawater

Key Advantages

✅ Extreme Durability: Exceptional resistance to oxidation, carburization, and sulfidation.
✅ Zero Defects: 100% UT (Ultrasonic Testing) and Eddy Current Testing (ET).
✅ High-Temp Stability: Maintains tensile strength above 1000°C (Inconel 625).
✅ Custom Solutions: Custom diameters, heat treatments (Solution Annealing), and ASME Code Stamping.

Applications

· Oil & Gas: Downhole tubing, sour gas pipelines, LNG heat exchangers

· Chemical Plants: Reactor coils, sulfuric acid concentrators

· Aerospace: Jet engine components, exhaust systems

· Nuclear Power: Steam generator tubes, radioactive waste handling

· Marine Engineering: Seawater cooling systems, offshore platform piping

Certifications

· ISO 9001:2015, PED 2014/68/EU, NORSOK M-630

· NACE MR0103/MR0175 (H2S & Chloride Resistance)

· Mill Test Certificates (MTC) with PMI (Positive Material Identification)

Packaging & Logistics

· Export Packaging: PVC-coated steel strapping, wooden crates with VCI anti-rust paper.

· Shipping: FOB/CIF/DDP terms; certified for IMDG/ATA Carnet.

· Lead Time: 20-30 days (standard), 45-60 days (custom heat-treated orders).

About us

Customer services

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