Inconel 625 Plate Manufacturer and Supplier

Inconel 625 plate is a nickel-chromium-molybdenum-niobium alloy plate manufactured to ASTM B443 / ASME SB-443, identified by UNS N06625 and W.Nr. 2.4856. The alloy contains a minimum of 58% nickel, 20 to 23% chromium, 8 to 10% molybdenum, and 3.15 to 4.15% niobium (Nb+Ta). Molybdenum and niobium empower these plates with exceptional tensile strength through solid solution strengthening. At temperatures spanning from cryogenic to 1800°F (982°C), they actively resist stress cracking, crevice corrosion, and pitting. This guarantees that your most demanding industrial applications operate consistently under duress.

Sachiya Steel International is a trusted Mumbai-based manufacturer, supplier, stockist, and exporter of Inconel 625 plate. Leveraging 2 decades of deep industry expertise, we maintain a massive 1,500 to 2,000 metric tonne inventory. Our operations are fully ISO 9001, 14001, and 45001 certified, guaranteeing elite quality and reliable supply for global industrial projects.

We stock plate thicknesses from 3/16" (4.8 mm) up to 3" (76.2 mm). Our team provides sizes completely customised to suit your unique needs, ensuring a perfect fit every time. Every plate arriving from the mill includes a mill test certificate to ensure complete metallurgical traceability and total industrial compliance.

Nickel Alloy 625 plate serves the aerospace, chemical processing, marine, offshore, and power generation industries.

This page covers:

Specification
Pricing
Chemical Composition
Mechanical Properties
Equivalent Designations
Industrial Applications
Inconel 625 vs 718 Comparison
ASTM B443 Grades
Frequently Asked Questions

Specifications of Inconel 625 Plate

Refer to the following technical data for the material specifications of Inconel 625 Plates.

Property	Specification / Details
Standard	ASTM B443 / ASME SB443
Thickness Range	4.8 mm to 76.2 mm (3/16" to 3.0")
Width	Up to 2500 mm (98.4")
Length	Up to 6000 mm (236.2")
Common Finishes	Hot Rolled (No.1), Cold Rolled (2B/BA), Polished

Inconel 625 Plate Sizes

Inconel 625 plate is available from 3/16" (4.8 mm) to 3" (76.2 mm) thick, widths up to 72" (1829 mm), and lengths up to 240" (6096 mm). Custom sizes on request.

Dimension	Range
Thickness	3/16" (4.8 mm) to 3" (76.2 mm)
Width	Up to 72" (1829 mm)
Length	Up to 240" (6096 mm)

Inconel 625 Plate Price Per Kg

The average price of Inconel 625 plate in India is Rs 2,200 to Rs 3,500 per kg while in the USA it range around $43 to $108. The total costs are determined by the quantity, thickness, and specific requirements. The present nickel market rates are the basis for international pricing. Reach out to Sachiya Steel International for an accurate, real-time quotation today.

Inconel 625 Plate Chemical Composition

Inconel 625 plate per ASTM B443 / ASME SB-443 contains a minimum 58% nickel, 20 to 23% chromium, 8 to 10% molybdenum, and 3.15 to 4.15% niobium. Full composition in weight percentage:

NickelNi

58.0 min

ChromiumCr

20.0 to 23.0

MolybdenumMo

8.0 to 10.0

Niobium + TantalumNb+Ta

3.15 to 4.15

IronFe

5.0 max

CarbonC

0.10 max

ManganeseMn

0.50 max

SiliconSi

0.50 max

SulfurS

0.015 max

AluminiumAl

0.40 max

TitaniumTi

0.40 max

Inconel 625 Plate Mechanical Properties

Alloy 625 plate (Grade 1, annealed) meets these minimum requirements per ASTM B443 / ASME SB-443. With 120 ksi (827 MPa) tensile strength and 30% elongation, Inconel 625 plate offers high load-bearing capacity and good ductility up to 1800°F (982°C).

120 / 827

ksi / MPa

Tensile Strength (min)

60 / 414

ksi / MPa

Yield Strength, 0.2% Offset (min)

Elongation in 2" or 50 mm (min)

Property	Value
Tensile Strength (min)	120 ksi / 827 MPa
Yield Strength, 0.2% Offset (min)	60 ksi / 414 MPa
Elongation in 2" or 50 mm (min)	30%

Equivalent Designations

Inconel 625 plate is identified by UNS N06625 and W.Nr. 2.4856 across international specifications.

Standard / System	Designation
UNS	N06625
W.Nr.	2.4856
ASTM	B443
ASME	SB-443

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Inconel 625 Plate Industrial Applications

Inconel 625 plate is utilised in 4 significant sectors where high-temperature strength and corrosion resistance are essential.

Aerospace and Defense

Alloy 625 plate is used for exhaust components, turbine shrouds, and thrust reversers. AMS 5599 compliance and strength retention up to 1800°F (982°C) make it standard in aerospace.

Chemical Processing

Inconel 625 plate resists hydrochloric, phosphoric, and organic acids. The 8 to 10% molybdenum content drives pitting resistance in chloride solutions.

Marine and Offshore Oil & Gas

Alloy 625 plate is specified for subsea equipment, riser tensioners, and splash zone components in H2S-containing offshore environments per NACE MR0175 / ISO 15156.

Power Generation and Nuclear

Nuclear fuel spacers and flue gas desulphurisation systems use Inconel 625 plate. Oxidation resistance up to 2000°F (1093°C) supports long service life.

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Inconel 625 Plate vs Inconel 718 Plate

The effectiveness and strengthening mechanisms of these two nickel superalloys are distinct. The primary criteria are contrasted in the table. Inconel 625 is the optimal choice for corrosive environments. When the primary requirement is for a strength exceeding 120 ksi, Inconel 718 should be chosen.

Property	Inconel 625 Plate	Inconel 718 Plate
Strengthening Mechanism	Solid solution (Mo + Nb)	Precipitation hardening (Nb + Ti + Al)
Tensile Strength (min)	120 ksi (827 MPa)	180 ksi (1241 MPa)
Corrosion Resistance	Superior	Good
Weldability	Excellent, no post-weld heat treatment	Requires post-weld ageing
Max Service Temperature	1800°F (982°C)	1300°F (704°C)

ASTM B443 Grades

ASTM B443 states that there are two classes of Inconel 625 plate, each having the same composition but a different way of heating it.

Grade 1 (Annealed)

Grade 1 Inconel 625 plate is supplied in the annealed condition with a minimum of 120 ksi (827 MPa) tensile, 60 ksi (414 MPa) yield, and 30% elongation. Most buyers select Grade 1 for corrosion-resistant service.

Grade 2 (Solution Annealed)

Grade 1 is supplied in the annealed condition, while Grade 2 is solution annealed to meet specific mechanical property and microstructural requirements defined in ASTM B443.

Shipping & Packaging

Heavy-duty wooden boxes Packing

Export Packaging Standard

We strictly follow seaworthy export handling standards to protect Inconel 625 Plate from transit damage, moisture ingress, and surface contamination during long-distance dispatch.

Heavy-duty wooden boxes with moisture barrier lining
HDPE stretch film wrapping on all bundles
Plastic end caps on threaded and plain-end plate
Silica gel desiccants to minimize moisture exposure
ISPM-15 fumigated wooden packaging for export

Plate Bundle Yard Staging

Container End-Cap Protection

Wrapped Export-Ready Bundles

We Export Worldwide

Sachiya Steel International supplies inconel products to major industrial markets across North America, Europe, the Middle East, Asia and Africa with export-ready documentation and logistics support.

USA
Canada

Frequently Asked Questions

What is the difference between ASTM B443 grade 1 and grade 2?+

Grade 1 is annealed and Grade 2 is solution annealed. Both share the same composition. Grade 1 requires minimum 120 ksi tensile and 60 ksi yield. Grade 2 is specified when procurement documents require the solution-annealed condition.

What thicknesses are available for Inconel 625 Plate?+

Inconel 625 plate is available from 3/16" (4.8 mm) to 3" (76.2 mm) in thickness. Material below 3/16" is classified as sheet.

What is the ASTM specification for Inconel 625 Plate?+

The primary specification is ASTM B443 / ASME SB-443. For aerospace applications, AMS 5599 applies.

Can Inconel 625 Plate be welded?+

Inconel 625 plate can be welded using GTAW and GMAW with ERNiCrMo-3 filler metal. Post-weld heat treatment isn't typically required.

What is the density of Inconel 625 Plate?+

The density of Inconel 625 plate is 8.44 g/cm3 (0.305 lb/in3) with a melting point of 1320°C (2405°F).

What is the price per kg of Inconel 625 Plate?+

Indian prices range Rs 2,200 to Rs 3,500 per kg depending on thickness and quantity. Request a quote for your current pricing.

What is the maximum operating temperature for Inconel 625 Plate?+

Inconel 625 plate maintains mechanical properties up to 1800°F (982°C). Oxidation resistance extends to 2000°F (1093°C) in certain applications.

Is Inconel 625 Plate suitable for sour service applications?+

When it comes to sour gas situations that contain hydrogen sulphide, Inconel 625 plate is in accordance with NACE MR0175 and ISO 15156. For subsea and downhole components, oil and gas companies choose this alloy as the material of choice.