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ASTM B167 Seamless Nickel Alloy Pipe is the standard descrition about nickel-chromium-iron alloy (UNS N06600, N06601, N06617, N06690) seamless pipe and tube, covering Inconel 600 (Alloy 600) , Inconel 601 (Alloy 601) , Inconel 617 (Alloy 617) , and Inconel 690 (Alloy 690) in cold-worked annealed, hot-worked annealed, and hot-finished conditions. This nickel alloy standard delivers high temperature oxidation resistance, chloride-ion stress-corrosion cracking , caustic corrosion,and high purity water corrosion resistance across a broad temperature range. Available in cold-worked annealed, hot-worked annealed, and hot-finished forms, custom size, Schedule 40/80, and large diameter options. This high temperature nickel alloy is the preferred material for furnace components, chemical processing, nuclear reactor systems, heat exchangers, petrochemical processing, and thermal processing equipment.
| Parameter | Range & Options |
Product Forms | Seamless Pipe, Seamless Tube, Cold-Worked Annealed Pipe, Hot-Worked Annealed Pipe, Hot-Finished Pipe |
Standards | ASTM B167 (Primary) · ASME SB167 · AMS 5541 |
Grades | UNS N06600 (Inconel 600 / Alloy 600) · UNS N06601 (Inconel 601 / Alloy 601) · UNS N06617 (Inconel 617 / Alloy 617) · UNS N06690 (Inconel 690 / Alloy 690) |
OD Range | 1/2″ – 8″ NPS standard; custom size available |
Schedules | Sch 5, 10, 40, 80; custom schedules available |
Wall Thickness | Standard, thin wall, heavy wall |
Length | Standard 6m; cut to size available |
Inspection | Hydrostatic, eddy current, ultrasonic, tensile, hardness per ASTM B167 |
Customization | Custom size, cut to length, large diameter, precision machining |
1. Furnace Components & Heat Treating Equipment
For radiant tubes, retorts, muffles, and furnace roller rails in heat-treating furnaces, Inconel 600 seamless pipe for heat resistant applications delivers high temperature oxidation resistance up to 2000°F (1093°C) with excellent resistance to carburization and thermal fatigue. Its nickel-chromium-iron alloy composition ensures long service life under cyclic heating and cooling conditions.
For high-temperature furnace components in petrochemical processing, UNS N06617 pipe for petrochemical processing offers nickel-chromium-cobalt-molybdenum alloy composition with exceptional creep and rupture strength. This heat resistant nickel alloy seamless tube withstands extreme temperatures and aggressive furnace atmospheres in ethylene cracking and reforming applications.
ASTM B167 nickel alloy pipe is widely used for furnace fans, burner nozzles, and thermal processing equipment where oxidation resistance and thermal stability are critical.
2. Chemical Processing & Caustic Corrosion Service
In chemical processing plants handling caustic soda, chlorine, and organic chlorides, Inconel 600 seamless pipe for chemical processing delivers excellent resistance to caustic corrosion and chloride stress-corrosion cracking. Its high nickel content (72% min) provides immunity to caustic embrittlement in sodium hydroxide and potassium hydroxide environments.
ASTM B167 nickel-chromium-iron alloy pipe is specified for caustic evaporators, concentrators, and chlor-alkali cell components where both high temperatures and corrosive media are present. This general corrosion resistant alloy outperforms stainless steels in reducing and caustic environments.
For high purity water systems and semiconductor manufacturing, Inconel 690 seamless tube for nuclear reactor systems provides exceptional resistance to stress corrosion cracking in high-temperature, high-purity water.
3. Nuclear Engineering & Reactor Systems
Inconel 690 pipe for nuclear reactor systems is the standard material for pressurized water reactor (PWR) steam generator tubing, reactor coolant piping, and control rod mechanisms. Its high chromium content (27–31%) provides exceptional resistance to stress corrosion cracking in high-temperature, high-purity water environments.
ASTM B167 nickel alloy pipe is also used in nuclear waste processing, fuel reprocessing, and auxiliary reactor systems where radiation resistance and corrosion stability are required.
4. Heat Exchangers & Process Piping
ASTM B167 seamless tube for heat exchangers is widely used in shell-and-tube exchangers, condenser tubing, and reboiler bundles in high-temperature corrosive service. The heat resistant nickel alloy pipe maintains mechanical properties and corrosion resistance across a wide temperature range.
Inconel 601 pipe for oxidation resistant service is ideal for air preheaters, thermal oxidizers, and flue gas recirculation systems where aluminum addition provides enhanced oxidation resistance.
Alloy 600 pipe for thermal processing equipment is specified for transfer line exchangers, process gas coolers, and quench systems in petrochemical plants.
5. Petrochemical & Gas Turbine Components
For gas turbine components including combustor liners, transition ducts, and turbine shrouds, Inconel 617 seamless pipe delivers extreme high temperature strength with nickel-chromium-cobalt-molybdenum alloy composition.
ASTM B167 pipe for high temperature service is used in ethylene cracking furnace tubes, reformer pigtails, and pyrolysis coils where creep and rupture resistance are critical.
Q: What is the difference between Inconel 600, 601, 617, and 690?
A: Inconel 600 seamless pipe is the general-purpose grade with excellent caustic corrosion resistance and chloride stress-corrosion cracking resistance. Inconel 601 seamless pipe adds aluminum for enhanced oxidation resistance up to 2200°F. Inconel 617 seamless pipe is a nickel-chromium-cobalt-molybdenum alloy designed for extreme high-temperature strength and creep resistance. Inconel 690 seamless pipe features high chromium content (27–31%) for nuclear and high-purity water applications.
Q: What is the maximum operating temperature for Inconel 600 pipe?
A: this grade pipe suitable for continuous service up to 2000°F (1093°C). It maintains excellent oxidation resistance and mechanical properties at elevated temperatures, making it ideal for furnace components and heat treating equipment. For service above 2000°F, Inconel 601 or 617 grade is recommended.
Q: Why is Inconel 690 preferred for nuclear reactor systems?
A: Inconel 690 seamless tube offers exceptional resistance to stress corrosion cracking in high-temperature, high-purity water environments due to its high chromium content (27–31%). It is the standard material for PWR steam generator tubing and reactor coolant systems, providing superior SCC resistance compared to Inconel 600.
Q: Can ASTM B167 pipe be welded without post-weld heat treatment?
A: Yes. ASTM B167 seamless nickel alloy pipe can be welded using TIG, MIG, and other standard processes with matching filler metal. and the material maintains its nickel and other checmial composition,and help material grade mechanical properties in the as-welded condition, and post-weld heat treatment is generally not required for most applications.
We are a trusted ASTM B167 Seamless Nickel Alloy Pipe Supplier and Inconel 600 Pipe Manufacturer, China‑based, serving furnace builders, chemical processors, nuclear industry suppliers, and heat exchanger manufacturers worldwide. All products comply with ASTM B167 / ASME SB167 with EN 10204 3.1 mill certificates, PMI verification, hydrostatic and eddy current test reports. We offer cold‑worked annealed, hot‑worked annealed, and hot‑finished Inconel pipe in custom sizes, Schedule 40/80, and large diameter options. Contact us at info@monokj.com for size chart, pricing, or custom requirements.
