| ASTM Nickel-Based Alloy Standards, Grades and Properties |
| Execution Standard |
UNS Grade |
Commercial Name |
Alloy Series |
Core Advantages |
Typical Application Scenarios |
| ASTM B443 |
N06625 |
625 |
Inconel Series |
Molybdenum + niobium strengthened nickel-based alloy with high strength, pitting and crevice corrosion resistance, excellent mechanical properties at room/high temperature, and good weldability |
Offshore oil and gas pipelines, aircraft engines, seawater desalination, pressure vessels |
| ASTM B168 |
N06601 |
601 |
Inconel Series |
Aluminum element added on the basis of 600, with stronger high-temperature oxidation protection |
High-temperature furnace rollers, heat treatment tooling, incinerators, high-temperature radiant tubes |
| ASTM B168 |
N06600 |
600 |
Inconel Series |
Ni-Cr-Fe base alloy with high nickel content, oxidation resistance, chloride ion resistance, high and low temperature resistance, and non-magnetic |
Heat treatment furnace tubes, nuclear power equipment, pickling equipment, high-temperature heating elements |
| ASTM B407 |
N08800 |
800H |
Incoloy Series |
Carbon-controlled improved version with greatly improved high-temperature creep performance, higher iron content, and lower cost than pure Inconel |
Cracking furnace tubes, boiler superheaters, heat treatment racks, high-temperature heat exchange equipment |
| ASTM B575 (Plate, Sheet, Strip) |
UNS N010276 |
Hastelloy C276 |
Hastelloy Series |
High molybdenum-chromium alloy, a universal all-round corrosion-resistant alloy in the industry, resistant to chlorides, wet chlorine, hydrochloric acid, sulfuric acid, and mixed strong corrosive acids |
Flue gas desulfurization (FGD), chemical reactors, pickling equipment, pharmaceutical corrosion conditions |
| ASTM B574 (Bar), ASTM B575 (Sheet, Plate, Strip) |
UNS N06022 |
Hastelloy C22 |
Hastelloy Series |
Upgraded version of C276 with higher chromium content, more stable in oxidizing corrosion environments, resistant to strong oxidizing corrosion such as nitric acid and chromic acid, and compatible with reducing acids |
Waste incineration tail gas equipment, chemical mixed acid-base reactors, electroplating equipment |
| ASTM B637 |
UNS N07718 |
Inconel 718 |
Inconel Series |
Age precipitation hardening alloy with ultra-high tensile strength |
Aircraft turbine blades, high-temperature fasteners, gas turbines, oil and gas wellhead equipment |
| ASTM B425 (Bar), ASTM B424 (Plate, Strip, Sheet) |
UNS N08825 |
Inconel 825 |
Inconel Series |
Nickel-chromium-molybdenum-copper alloy, specially resistant to sulfuric acid, phosphoric acid, and mixed acid corrosion |
Pickling production lines, oil and gas downhole pipelines, hydrometallurgical equipment |
| ASTM B408 (Bar) |
UNS N08800 |
Incoloy 800 |
Incoloy Series |
Iron-nickel-chromium base alloy with high temperature oxidation resistance, chloride ion corrosion resistance, and high cost performance |
Heat treatment equipment, chemical heat exchange tubes, food processing equipment |
| ASTM B637 |
UNS N07750 |
Inconel X750 |
Inconel Series |
Aluminum-titanium precipitation hardening, high temperature creep resistance, and good elasticity |
High-temperature springs, steam turbine seals, aircraft fasteners |
