EN 10204 3.1 MTC
Inconel 625 Sheets and Plates Manufacturer | ASTM B443 Supplier in India
Jade Alloys supplies ASTM B443 / AMS 5599 Inconel 625 Sheets and Plates in ready stock in Mumbai with same week delivery to customers in more than 50 countries with thickness ranging from 0.3 mm to 120 mm. Also known as UNS N06625, Werkstoff Nr. 2.4856, or Alloy 625 is a nickel-chromium-molybdenum superalloy that offers outstanding corrosion resistance, high tensile strength and cryogenic to 1093 degC (2000 degF) performance. All products are provided with a Mill Test Certificate to EN 10204 3.1 and complete chemical and mechanical reports. PMI testing and third-party inspection via SGS or Bureau Veritas is available on request.
The Inconel 625 Plate derives its strength from solid-solution hardening by molybdenum and niobium, no precipitation hardening treatment is required. This composition provides outstanding resistance to a wide range of corrosive media including mineral acids, seawater, and high-temperature oxidising environments, making Inconel 625 sheet an industry-standard choice for marine, aerospace, oil and gas, chemical processing and power generation applications.
(EN 10204)
(Stock)
Why Source Inconel 625 Sheets and Plates from Jade Alloys?
Jade Alloys is an ISO 9001-certified manufacturer and exporter of inconel plates & sheets, based in Mumbai with over 15 years of supply to clients in the oil and gas, marine, aerospace, and chemical processing sectors. Key reasons global buyers choose us:
- Ready stock of Inconel 625 Sheet, Plate, Coils, Shim Sheets, Strips, and Foils in Mumbai — minimum order from 1 sheet for urgent projects
- ASTM B443 / AMS 5599 / AMS 5869 compliant material with EN 10204 3.1 Mill Test Certificates included as standard
- NACE MR0175 / ISO 15156 certified test reports available for oil and gas sour-service applications
- Third-party inspection via SGS or Bureau Veritas accepted; PMI testing available on request
- Same-week dispatch for standard stock; exports shipped within 5 to 7 business days
- Competitive pricing with volume discounts; FOB Mumbai and CIF pricing available
- Sales representatives in Saudi Arabia, UAE, Kuwait, Singapore, Germany, South Africa, Australia, and 30+ other countries
Inconel 625 Sheets and Plates Specifications
All Inconel 625 sheets and plates supplied by Jade Alloys conform to ASTM B443 / ASME SB443 / AMS 5599 (annealed) and AMS 5869 (strain hardened). The table below lists the full dimensional range stocked.
| Parameter | Detail |
|---|---|
| Standard | ASTM B443 / ASME SB443 / AMS 5599 (Annealed) / AMS 5869 (Strain Hardened) |
| Thickness | 0.3 mm to 120 mm |
| Width | 1000 mm, 1219 mm, 1500 mm, 1800 mm, 2000 mm, 2500 mm, 3000 mm, 3500 mm |
| Length | 2000 mm, 2440 mm, 3000 mm, 5800 mm, 6000 mm — cut-to-size available |
| Surface Finish | 2B, 2D, BA, No.1, No.4, No.8, 8K, Mirror, Hairline, Checkered, Embossed, Sandblast, Brush, Etching |
| Form | Sheets, Plates, Coils, Slitting Coils, Perforated Sheets, Shim Sheets, Strips, Foils |
| Condition | Annealed (ASTM B443) / Strain Hardened (AMS 5869) |
| Thickness Classification | Foil: < 0.15 mm | Sheet: 0.15 mm to 6.35 mm | Plate: > 6.35 mm (per ASTM B443) |
ASTM B443 Inconel 625 Thickness Tolerances
| Thickness Range | Tolerance |
|---|---|
| 0.3 mm to 1.0 mm | +/- 0.025 mm |
| 1.0 mm to 3.0 mm | +/- 0.05 mm |
| 3.0 mm to 6.35 mm | +/- 0.08 mm |
| > 6.35 mm (Plate) | +/- 0.13 mm |
Source: ASTM B443 Table 5. Contact our technical team for project-specific tolerance requirements.
Equivalent Grades of Inconel 625 / Alloy 625 / UNS N06625
| Standard | Designation |
|---|---|
| UNS | N06625 |
| Werkstoff Nr. (DIN / EN) | 2.4856 |
| EN | NiCr22Mo9Nb |
| JIS | NCF 625 |
| BS | NA 21 |
| GOST | KhN75MBTYu |
| AFNOR | NC22DNB4M |
| AMS (Annealed Sheet & Plate) | AMS 5599 |
| AMS (Strain Hardened Sheet & Plate) | AMS 5869 |
| ASME | SB443 |
Inconel 625 Sheets and Plates Chemical Composition
| Element | Symbol | Composition (wt%) |
|---|---|---|
| Nickel | Ni | 58.0 min |
| Chromium | Cr | 20.0 to 23.0 |
| Molybdenum | Mo | 8.0 to 10.0 |
| Niobium / Columbium | Nb | 3.15 to 4.15 |
| Iron | Fe | 5.0 max |
| Carbon | C | 0.10 max |
| Manganese | Mn | 0.50 max |
| Silicon | Si | 0.50 max |
| Copper | Cu | 0.40 max |
| Aluminum | Al | 0.40 max |
| Titanium | Ti | 0.40 max |
| Cobalt | Co | 1.0 max |
| Sulfur | S | 0.015 max |
Molybdenum (Mo) and Niobium (Nb) are the primary solid-solution strengthening agents. Their combination with chromium and nickel is responsible for the alloy’s outstanding corrosion resistance and high-temperature performance.
Inconel 625 Sheets and Plates Mechanical Properties
| Property | Value |
|---|---|
| Condition | Annealed (per ASTM B443) |
| Density | 8.44 g/cm3 (0.305 lb/in3) |
| Melting Range | 1290 to 1350 degC (2354 to 2462 degF) |
| Tensile Strength | 827 MPa min / 120,000 psi min (Annealed) |
| Yield Strength (0.2% Offset) | 414 MPa min / 60,000 psi min (Annealed) |
| Elongation | 30% min |
| Hardness | 217 HB max (Annealed) | 94 HRB typical |
| Magnetic Permeability | 1.0006 (essentially non-magnetic) |
| Pitting Resistance Equivalent (PREN) | 40.8 (Ni 62 / Cr 22 / Mo 9 / Nb 3.5) |
| Specific Heat (at 21 degC) | 0.098 Btu/lb.degF (410 J/kg.K) |
Average Tensile Data for Inconel 625 Sheet at Elevated Temperatures
| Temperature (degF / degC) | Ultimate Tensile Strength (MPa) | Yield Strength 0.2% (MPa) | Elongation (%) |
|---|---|---|---|
| Room Temp (70 degF / 21 degC) | 957 | 496 | 38 |
| 200 degF / 93 degC | 919 | 464 | 41 |
| 400 degF / 204 degC | 892 | 429 | 44 |
| 600 degF / 316 degC | 866 | 410 | 45 |
| 800 degF / 427 degC | 843 | 408 | 45 |
| 1000 degF / 538 degC | 827 | 405 | 46 |
| 1200 degF / 649 degC | 825 | 393 | 47 |
| 1400 degF / 760 degC | 609 | 381 | 70 |
| 1600 degF / 871 degC | 359 | 241 | 69 |
| 1800 degF / 982 degC | 172 | 75 | 108 |
| 2000 degF / 1093 degC | 92 | 42 | 89 |
Data: annealed sheet, rapidly cooled from 1052 degC (1925 degF). For strain-hardened conditions (AMS 5869), higher values apply.
Average Rupture Strength Data for Inconel 625 Sheet
| Test Temperature | 10 hrs (MPa) | 100 hrs (MPa) | 1000 hrs (MPa) |
|---|---|---|---|
| 1200 degF / 649 degC | 565 | 490 | 414 |
| 1400 degF / 760 degC | 248 | 186 | 138 |
| 1600 degF / 871 degC | 83 | 46 | 26* |
* Extrapolated. Source: annealed at 1925 degF (1052 degC), rapid cooled.
Inconel 625 Physical Properties — Thermal Conductivity & Electrical Resistivity
Thermal Conductivity
| Temperature (degC / degF) | Thermal Conductivity (W/m.K) | Linear Expansion Coeff. (x10-6/degC) |
|---|---|---|
| 21 degC / 70 degF | 9.9 | — |
| 93 degC / 200 degF | 10.7 | 12.8 |
| 204 degC / 400 degF | 12.6 | 13.1 |
| 316 degC / 600 degF | 14.2 | 13.3 |
| 427 degC / 800 degF | 15.7 | 13.7 |
| 538 degC / 1000 degF | 17.5 | 14.0 |
| 649 degC / 1200 degF | 19.0 | 14.8 |
| 760 degC / 1400 degF | 20.8 | 15.3 |
| 871 degC / 1600 degF | 22.8 | 15.8 |
| 982 degC / 1800 degF | 25.3 | — |
Electrical Resistivity
| Temperature (degC / degF) | Electrical Resistivity (uOhm.cm) |
|---|---|
| 21 degC / 70 degF | 128.9 |
| 93 degC / 200 degF | 131.9 |
| 204 degC / 400 degF | 133.9 |
| 316 degC / 600 degF | 134.9 |
| 427 degC / 800 degF | 135.9 |
| 538 degC / 1000 degF | 137.9 |
| 649 degC / 1200 degF | 137.9 |
| 760 degC / 1400 degF | 136.9 |
| 871 degC / 1600 degF | 135.9 |
| 1093 degC / 2000 degF | 133.9 |
Inconel 625 Sheet Sizes — 0.4 mm to 10 mm
| Thickness (mm) | Thickness (inches) |
|---|---|
| 0.4 | 0.01575 |
| 0.5 | 0.01969 |
| 0.7 | 0.02756 |
| 0.8 | 0.03150 |
| 1.0 | 0.03937 |
| 1.2 | 0.04724 |
| 1.6 | 0.06299 |
| 2.0 | 0.07874 |
| 3.0 | 0.11810 |
| 4.0 | 0.15750 |
| 5.0 | 0.19690 |
| 6.0 | 0.23620 |
| 8.0 | 0.31500 |
| 10.0 | 0.39370 |
Inconel 625 Plate Dimensions and Weight Chart
| Thickness (inches) | Thickness (mm) | Weight per Unit Area (kg/m2) |
|---|---|---|
| 3/16″ | 4.75 mm | 42.18 |
| 1/4″ | 6.35 mm | 56.25 |
| 3/8″ | 9.53 mm | 85.07 |
| 1/2″ | 12.70 mm | 113.19 |
| 5/8″ | 15.87 mm | 137.80 |
| 3/4″ | 19.05 mm | 165.22 |
| 7/8″ | 22.22 mm | 192.64 |
| 1″ | 25.40 mm | 220.06 |
| 1-1/4″ | 31.75 mm | 274.90 |
| 1-1/2″ | 38.10 mm | 330.44 |
| 2″ | 50.80 mm | 440.82 |
| 2-1/2″ | 63.50 mm | 551.21 |
| 3″ | 76.20 mm | 661.59 |
Weight calculated using alloy density 8.44 g/cm3. Use for material take-off and freight estimation.
Use our Metal weights calculator to check the exact weight
Fabrication of Inconel 625 Sheets and Plates
Welding
Inconel 625 offers excellent weldability without requiring post-weld heat treatment (PWHT) in most applications. Compatible processes: TIG (GTAW), MIG (GMAW), SAW, and plasma. Recommended filler wire: ERNiCrMo-3 (AWS A5.14, matching composition). Welding electrode for SMAW: INCONEL 112. Weld joints retain corrosion resistance and strength of the base material. Comply with ISO 3834 or ASME Section IX. Material should be in mill-annealed condition, thoroughly descaled and cleaned before welding.
Cold Forming
Inconel 625 can be cold formed by standard methods used for austenitic stainless steel. When material becomes too stiff from cold working, ductility can be restored by process annealing at 927 to 1038 degC (1700 to 1900 degF) followed by air quench or faster cooling.
Hot Forming
Hot working at a maximum furnace temperature of 1149 degC (2100 degF). Avoid frictional heat build-up exceeding 2100 degF. The alloy stiffens below 1010 degC (1850 degF); reheat workpieces that fall below this temperature. Finishing reduction of approximately 15 to 20% is recommended to avoid a duplex grain structure.
Machining
Machine in the annealed condition. Because Inconel 625 is prone to work hardening, use low cutting speeds and keep the cutting tool engaged at all times. Adequate cut depth is required to avoid the previously work-hardened zone.
Heat Treatment
| Treatment | Temperature Range | Cooling Method |
|---|---|---|
| Low Solution Anneal | 927 to 1038 degC (1700 to 1900 degF) | Air quench or faster |
| High Solution Anneal | 1093 to 1204 degC (2000 to 2200 degF) | Air quench or faster |
| Stress Relieve | 899 degC (1650 degF) | Air quench |
Corrosion Resistance of Inconel 625 Plates and Sheets
Inconel 625 shows excellent corrosion resistance across a wide range of environments. PREN 40.8.
- Outstanding resistance to pitting and crevice corrosion in chloride-bearing media and seawater
- High resistance to mineral acids (nitric, phosphoric, sulfuric, hydrochloric) in both oxidising and reducing conditions
- Resistance to impingement corrosion and intergranular attack
- Immunity to chloride ion stress corrosion cracking
- Resistance to oxidation and carburisation at temperatures up to 1093 degC
- NACE MR0175 / ISO 15156 compliant for sour gas / H2S service environments
| Environment | Result / Corrosion Rate |
|---|---|
| Boiling 10% Acetic Acid (24-hr test) | 0.01 to 0.19 mm/a (essentially nil) |
| Seawater impingement at 45.7 m/s (150 ft/s) | Nil — no measurable attack |
| Chloride stress corrosion cracking (SCC) | Immune |
| Sour gas (H2S) service — NACE MR0175 | Compliant in annealed condition |
Applications of Inconel 625 Sheets and Plates Across Industries
Marine and Offshore
Inconel 625 plates are used in seawater handling systems, submarine hulls, offshore oil drilling platforms, and marine exhaust systems. High nickel content and PREN 40.8 make this alloy ideal for permanent seawater immersion where chloride-induced pitting would degrade lesser alloys. Components include flexible riser systems, mooring line hardware, subsea manifolds, and propulsion bellows.
Aerospace and Defence
ASTM B443 Alloy 625 sheet is specified for aircraft exhaust systems, thrust reverser assemblies, engine nacelles, and fuel nozzles at service temperatures above 800 degC. Meets AMS 5599 qualification. The 625-LCF (Low Cycle Fatigue) variant — vacuum induction melted and electroslag remelted — is used in rotating components.
Chemical and Petrochemical
Alloy 625 plate is used in pressure vessels, heat exchanger headers, reactor linings, and column internals handling phosphoric acid, hydrofluoric acid, seawater, and mixed acid environments. Inconel 625 clad plates provide corrosion-resistant overlay on carbon steel vessels.
Oil and Gas
UNS N06625 sheets and plates are specified for wellhead components, subsea equipment, flexible riser pipes, and sour gas service environments requiring NACE MR0175 compliance, high strength, and broad-temperature corrosion resistance simultaneously.
Power Generation
Used in nuclear reactor core components, steam generator tubing, boiler systems, and heat recovery equipment where radiation resistance, creep strength, and long service life are critical design parameters.
Other Industries
Pipeline engineering, flue gas desulphurisation (FGD) systems, chimney liners, food processing, and general industrial fabrication where resistance to high temperatures and aggressive corrosive media is required.
Available Forms of Inconel 625 Sheet and Plate in Stock
| Form | Description / Standard |
|---|---|
| Plain Sheets | ASTM B443 — 0.15 mm to 6.35 mm; 2B, BA, No.4, No.8, Hairline, Mirror finish |
| Plates | ASTM B443 — 6.35 mm to 120 mm; HR or CR; Mill and polished finish |
| Coils / Slitting Coils | AMS 5599 — 0.1 mm to 5.0 mm; widths 0.5 m to 1.2 m |
| Shim Sheets | Precision flatness; 0.1 mm to 3.0 mm thickness |
| Foils | < 0.15 mm thickness; widths 5 mm to 200 mm |
| Strips | 0.05 mm to 3.0 mm thick; 5 mm to 200 mm wide; slit, round, rolled, or square edges |
| Perforated Sheets | Custom perforation patterns; standard and hairline finish |
| Chequered / Diamond Plates | Anti-slip pattern; DIN 2.4856 specification |
| Clad Plates | Alloy 625 / carbon steel composite for corrosion-resistant vessel construction |
| 625-LCF (Low Cycle Fatigue) | VIM-ESR melt; 0.031″ to 0.078″ thick; for rotating aerospace components |
| Cut-to-Size | Waterjet, plasma, laser, or oxy-propane cutting available |
| Circles / Blanks | Laser-cut circles for flange and disc applications |
Inconel 625 Sheets and Plates Price
Inconel 625 price varies based on thickness, finish, quantity, and LME nickel / molybdenum prices. Indicative pricing for standard stock:
| Product | Indicative FOB Price (Mumbai) |
|---|---|
| Inconel 625 Sheet (0.5 mm to 3 mm) | USD 30 to 50 per kg |
| Inconel 625 Plate (> 6.35 mm) | USD 28 to 45 per kg |
| Inconel 625 Coil / Strip | USD 32 to 55 per kg |
| Inconel 625 Shim Sheet | USD 40 to 70 per kg |
| Bulk orders (> 1 MT) | Contact for volume pricing |
Prices are indicative and subject to change with LME nickel prices. Contact us for a same-day formal quotation.
HSN Code for Inconel 625 Sheets and Plates
- HSN Code: 75062000
- Description: Nickel alloy plates, sheets, strip, and foil
- Use for Indian customs declarations, GST invoicing, and import documentation.
Countries We Export Inconel 625 Plates & Sheets
Jade Alloys is a leading exporter of Inconel 625 Plates & Sheets to more than 40 countries worldwide. From our Mumbai-based facility, we supply ASTM B443 UNS N06625 sheets, plates, coils, and cut-to-size materials with complete export documentation, Mill Test Certificates (EN 10204 3.1), and third-party inspection support. Our export network spans the Middle East, Europe, Asia-Pacific, Africa, and the Americas.
