Inconel 625 sheet is a high-performance nickel-chromium-molybdenum alloy product known for its outstanding strength, excellent corrosion resistance, and high-temperature stability. It is widely used in marine, aerospace, chemical processing, power generation, and oil & gas industries. This alloy sheet is especially valued for its resistance to pitting, crevice corrosion, and oxidation in extreme environments. In this article, we explore the specifications, applications, sizes, price trends, and purchasing guidelines for Inconel 625 sheet.
Chemical Composition of Inconel 625
| Element |
Content (%) |
| Nickel (Ni) |
58.0 min |
| Chromium (Cr) |
20.0–23.0 |
| Molybdenum (Mo) |
8.0–10.0 |
| Iron (Fe) |
5.0 max |
| Niobium + Tantalum (Nb+Ta) |
3.15–4.15 |
| Carbon (C) |
0.10 max |
| Manganese (Mn) |
0.50 max |
| Silicon (Si) |
0.50 max |
| Phosphorus (P) |
0.015 max |
| Sulfur (S) |
0.015 max |
Mechanical Properties of Inconel 625 Sheet
| Property |
Value |
Standard |
| Tensile Strength |
827 MPa (120 ksi) |
ASTM B443 |
| Yield Strength (0.2% Offset) |
414 MPa (60 ksi) |
ASTM B443 |
| Elongation |
≥30% |
ASTM B443 |
| Hardness (Rockwell B) |
≤100 |
ASTM B443 |
Available Sizes and Thicknesses
| Thickness (mm) |
Width (mm) |
Length (mm) |
| 0.5 – 3.0 |
1000 – 1500 |
2000 – 6000 |
| 3.1 – 6.0 |
1000 – 1500 |
2000 – 6000 |
| 6.1 – 12.0 |
1000 – 1500 |
2000 – 6000 |
Applications of Inconel 625 Sheet
| Industry |
Application |
| Aerospace |
Engine components, exhaust ducts |
| Marine |
Seawater-facing structures, underwater hardware |
| Oil & Gas |
Offshore platforms, pipe cladding |
| Chemical Processing |
Heat exchangers, reactor linings |
| Nuclear |
Fuel element spacers, reactor cores |
Surface Finishes
| Finish |
Description |
| 2B |
Cold-rolled, heat-treated, pickled, and skin-passed – smooth, reflective surface |
| BA |
Bright annealed – mirror-like finish for decorative applications |
| No. 1 |
Hot-rolled, annealed and descaled – dull finish |
Inconel 625 Sheet Price Per Kg
| Region |
Price Range (USD/kg) |
| United States |
$85 – $130 |
| Europe |
$90 – $140 |
| China |
$70 – $110 |
| India |
$75 – $120 |
| Middle East |
$90 – $135 |
Certifications and Standards
| Standard |
Description |
| ASTM B443 |
Standard Specification for Inconel 625 Sheet and Plate |
| ASME SB443 |
Pressure vessel use under ASME code |
| AMS 5599 / 5666 |
Aerospace materials specifications |
| NACE MR0175 |
Sour service oilfield environments |
Frequently Asked Questions
1. What is the price per kg of Inconel 625 sheet?
The price per kg ranges from $70 to $140 depending on thickness, supplier, and region.
2. What are common uses for Inconel 625 sheet?
It is used in aerospace engine parts, marine components, chemical plant equipment, and offshore platforms.
3. Which standards does Inconel 625 sheet comply with?
It complies with ASTM B443, ASME SB443, AMS 5599/5666, and NACE MR0175 for critical applications.
