Stainless Steel Seamless Pipe
ASTM A312/A790 seamless pipes in 304/316L/Duplex/Nickel Alloy, OD 6-630mm, for oil & gas and chemical processing.
Overview
TOKO TECH produces hot-finished and cold-finished stainless steel seamless pipes to the most demanding international standards. Our seamless pipe production line covers diameters from 6mm to 630mm in a comprehensive range of austenitic, duplex, super duplex, and nickel alloy grades. Every pipe undergoes rigorous non-destructive testing to ensure zero defects.
Explore by Material
Select a specific material grade below for detailed specifications, mechanical properties, and applications:
Key Features & Quality Control
Specifications
| Process | Material | OD Range | WT Range | Standard |
|---|---|---|---|---|
| Cold Finished | 304 / 304L | 6 – 630mm (1/4" – 24") | 0.5 – 60mm (SCH 5S – XXS) | ASTM A312 / ASME SA-312 |
| Cold Finished | 316 / 316L | 6 – 630mm (1/4" – 24") | 0.5 – 60mm (SCH 5S – XXS) | ASTM A312 / ASME SA-312 |
| Cold Finished | Duplex 2205 | 6 – 406mm (1/4" – 16") | 1.0 – 50mm | ASTM A790 / ASME SA-790 |
| Cold Finished | Super Duplex 2507 | 6 – 323mm (1/4" – 12") | 1.0 – 40mm | ASTM A790 / ASME SA-790 |
| Cold Finished | Inconel 625 | 6 – 219mm (1/4" – 8") | 0.5 – 30mm | ASTM B444 / ASME SB-444 |
| Cold Finished | Hastelloy C276 | 6 – 168mm (1/4" – 6") | 0.5 – 25mm | ASTM B622 / ASME SB-622 |
| Hot Finished | 304 / 316L / Duplex | 60 – 630mm (2" – 24") | 5 – 60mm | ASTM A312 / A790 |
Typical Applications
Oil & Gas Process Piping
High-pressure flowlines, gathering systems, and refinery process piping requiring reliable seamless construction for hydrocarbon transport.
Heat Exchangers & Boilers
Seamless tubes for shell-and-tube heat exchangers, superheaters, and boiler components in petrochemical and power generation plants.
Chemical & Petrochemical
Corrosion-resistant seamless piping for acid transport, reactor connections, and chemical transfer lines in aggressive environments.
Instrumentation & Hydraulic
Small-bore seamless tubes for instrumentation impulse lines, hydraulic power units, and pneumatic control systems.
Applicable Standards
Explore Materials Used in This Product
Review detailed material data, chemical composition, and mechanical properties for every grade we offer:
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