What are the differences between Inconel 625 strip and Hastelloy C276 strip?
What are the differences between Inconel 625 strip and Hastelloy C276 strip?
The main difference lies in their corrosion resistance: Inconel 625, due to its higher chromium content, performs better in oxidizing environments; while Hastelloy C276, due to its higher molybdenum content, performs excellently in reducing and acidic environments (such as those containing hydrochloric acid). Other differences include Inconel 625 having higher tensile strength, while Hastelloy C276 is generally more expensive, but Inconel 625 offers better value for money overall.
Can Inconel 625 be hardened?
Hardening treatment helps improve the strength and hardness of the material. The precipitation hardening temperature of Inconel 625 is typically between 540°C and 620°C, with a holding time of approximately eight hours.
Difference Between Inconel 625 Strip and Hastelloy C276 Strip
Inconel 625 Strip vs Hastelloy C276 Strip
Inconel 625 steel strip and Hastelloy C276 steel strip have the following significant differences:
Chromium content: Inconel 625 has a higher chromium content than Hastelloy C276.
Organic acid resistance: Inconel 625 has better resistance to organic acids than Hastelloy C276.
Resistance to pitting and crevice corrosion: Inconel 625 has better resistance to pitting and crevice corrosion than Hastelloy C276.
Price: Inconel 625 is more expensive than Hastelloy C276.
Hastelloy C276 Strip Chemical Composition
| % | Ni | Cr | Mo | W | Co | C | Mn | Si | P | S | Fe | V |
| Min | Balance | 14.5 | 15 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 0 |
| Max | Balance | 16.5 | 17 | 4.5 | 2.5 | 0.01 | 1 | 0.08 | 0.04 | 0.03 | 7 | 0.35 |
Inconel 625 Strip Chemical Composition
|
Grade |
Ni |
Cr |
Fe |
C |
Mn |
Si |
Mo |
Co |
Al |
Ti |
Nb + Ta |
P |
S |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Inconel 625 |
58.0 min |
20.0 – 23.0 |
5.0 max |
0.10 max |
0.50 max |
0.50 max |
8.0 – 10.0 |
1.0 max |
0.40 max |
0.40 max |
3.15 – 4.15 |
0.015 max |
0.015 max |
Features
Inconel 625 Strip Features:
High Strength: Inconel 625 alloy possesses excellent tensile strength, enabling it to withstand high-stress environments.
Corrosion Resistance: Inconel 625 alloy exhibits excellent corrosion and oxidation resistance in a variety of environments, including seawater, acidic and alkaline solutions, and high-temperature gases.
Heat Resistance: Inconel 625 alloy maintains its strength and toughness at high temperatures and can withstand extreme temperatures and thermal shock.
Weldability: Inconel 625 alloy can be welded using a variety of methods, including tungsten inert gas (TIG) welding, gas metal arc welding (GMAW), and electron beam welding.
Wide Applications: Inconel 625 alloy is widely used in aerospace, chemical, marine engineering, and oil and gas production industries.
Hastelloy C276 Strip Features:
Good weldability
Excellent corrosion resistance
Resistant to stress corrosion cracking
Oxidation resistance
| Feature | Inconel 625 | Hastelloy C276 |
|---|---|---|
| Primary Composition Difference | Higher chromium content; contains niobium and tantalum for solid solution strengthening | Higher molybdenum content; no niobium or tantalum |
| Corrosion Resistance | Better in oxidizing environments (e.g., concentrated sulfuric, nitric acid) | Better in reducing, acidic environments (e.g., hydrochloric acid, hydrogen sulfide) |
| Pitting/Crevice Corrosion | Better resistance | Excellent resistance to chloride-induced pitting and crevice corrosion |
| Mechanical Properties | High strength due to niobium and tantalum | Very good strength, similar to Inconel 625 |
| High-Temperature Performance | Better high-temperature strength and oxidation resistance, making it suitable for high-temperature applications | Good performance in many high-temperature environments, though generally not as good as Inconel 625 in oxidizing conditions at high temps |
| Weldability | Good weldability, easier to weld than Hastelloy C276 | Good weldability, but can experience slightly higher corrosion rates in the weld area relative to the parent metal |
| Cost | Generally more cost-effective | Generally more expensive |
| Typical Applications | Aerospace, marine, nuclear applications | Chemical processing, pollution control, waste treatment, sour gas wells |
Why Choose Gnee as Your Nickel-Based Alloy Supplier
✅ Over 18 years of export experience, products sold to more than 80 countries
✅ Certified by ISO, SGS, and BV
✅ Global inventory of Inconel, Hastelloy, Incoloy, and Monel alloy tubing, plates, and bars
✅ Custom processing services available – including cutting, polishing, CNC machining, and packaging
✅ Fast delivery within 7-15 days, supported by global logistics partners
📦 Packaging and Shipping
All stainless steel products are packaged using the following methods:
Wooden pallets or crates
Moisture-proof packaging
Labels with furnace number, standard, and size labels
Shipped worldwide by sea, air, or express
Gnee Steel is a supplier of GH4169 alloy, offering a wide range of products including: seamless pipe (sizes: 4-219 mm; thickness: 0.5-20 mm); welded pipe (sizes: 5.0-1219.2 mm; thickness: 0.5-20 mm); plates (thickness: 0.1 to 100 mm; width: 10-2500 mm); strips; alloy round bars (diameter: 3-800 mm); flat bars (thickness: 2-100 mm; width: 10-500 mm); hexagonal bars (size: 2-100 mm); wire rods; and extruded profiles. We collaborate with steel mills to provide our customers with GH4169 alloy products that meet or exceed numerous leading industry standards, including ASTM, ASME, SAE, AMS, ISO, DIN, EN, and BS standards.
Gnee Steel stocks and sells GH4169, pipes, plates, strips, round bars, flat bars, forged billets, hexagonal steel, wire rods, and extruded profiles. Please feel free to contact us at ss@gneesteel.com for a quote.
