Inconel Plate Manufacturer and Supplier

Inconel plate is a nickel-chromium superalloy flat product designed for extreme heat and aggressive chemical environments. These plates contain 50 to 72% nickel, depending on the grade, combined with chromium, molybdenum, niobium and other alloying elements. Grades 600 and 625each serve different conditions. Grade 600 handles temperatures up to 1093°C (2000°F) and is widely used in heat treatment equipment and nuclear reactors. Grade 625 adds molybdenum and niobium for aqueous corrosion resistance.

Sachiya Steel International is an ISO 9001, ISO 14001 and ISO 45001 certified Inconel plate manufacturer, supplier, stockist and exporter based in Mumbai, India. With over 20 years of experience, we stock a ready inventory of 1,500 to 2,000 metric tons across all major grades. Our plates comply with ASTM B443-B446, and their ASME equivalents. Available thicknesses range from 2.5 mm to 100 mm (0.1 in. to 4 in.), with widths up to 3000 mm and lengths up to 12000 mm. All plates are supplied in annealed or solution-annealed condition with full material traceability.

Buyers across aerospace, chemical processing, oil and gas, marine and power generation rely on Inconel plate for critical applications. Every order ships with a mill test certificate (EN 10204 3.1).

This page consists of the following sections in detail:

Specifications
Pricing
Grades
Types
Industrial Applications
Grade Comparison
Shipping & Packaging
Frequently Asked Questions

Inconel Plate Specifications

Inconel plates are made to ASTM, ASME, or AMS standards, based on the grade. Inconel 625 also meets NACE MR0175 / ISO 15156 for sour service.

Parameter	Details
Standard	ASTM B443 / ASME SB-443 (625),
Grades	Inconel 600, 625
Thickness Range	2.5 mm to 100 mm
Width Range	1000 mm to 3000 mm
Length Range	2000 mm to 12000 mm
Form	Hot Rolled Plate, Cold Rolled Sheet, Coil
Surface Finish	No. 1, No. 2B, Annealed & Pickled, Mill Finish
Delivery Condition	Annealed, Solution Annealed, Hot Rolled

Inconel Plat Sizes

Inconel plate is stocked in thicknesses from 2.5 mm to 100 mm, widths up to 2000 mm, and lengths up to 6000 mm. Custom dimensions are available on request with mill test certification.

Parameter	Range
Form	Plate
Thickness	2.5 – 100 mm
Width	50 – 2000 mm
Length	100 – 6000 mm

Inconel Plate Price

In India, Inconel plates typically cost between ₹1,100 and ₹2,750 per kg, depending on the grade, thickness, and order quantity. In international markets, prices are usually between US $15 and $45 per kg on an FOB basis, with higher prices for premium grades.

Grade 625 is generally the costliest because it contains molybdenum, niobium, and titanium. Grade 600 is usually the most economical option. Prices are influenced by the required standard, plate size, surface finish, heat treatment and nickel surcharges, and large orders often get better rates.

Applicable Standards and Grade

The table below shows which ASTM, ASME, and AMS specifications apply to each grade. Each Inconel plate grade follows certain international standards.

Grade	ASTM	ASME	AMS
600	B168	SB-168	5540
625	B443	SB-443	5599

Inconel Plate Grades

Inconel plate is available in 2 primary grades. 600 and 625. Different materials are used, depending on the specific temperature ranges, the type of corrosion and required strength.

Inconel 600 Plate

Inconel 600 plate (ASTM B168 / ASME SB-168) contains 72% nickel and operates from cryogenic temperatures to 1093°C (2000°F). It suits furnace components, chemical processing and nuclear applications.

Inconel 625 Plate

Inconel 625 plate (ASTM B443 / ASME SB-443) contains 8 to 10% molybdenum and 3.2 to 3.8% niobium. It resists chloride pitting, crevice corrosion and stress corrosion cracking. The grade is NACE MR0175 / ISO 15156 compliant for sour service in marine and chemical applications.

Inconel Plate Types

Inconel plate is available in 2 primary grades. 600 and 625. Different materials are used, depending on the specific temperature ranges, the type of corrosion and required strength.

Inconel Hot-Rolled Plate

Inconel Cold-Rolled Sheet

Inconel Strip and Coil

Inconel Shim Sheet and Foil

Industrial Applications of Inconel Plate

Inconel plate applications span 5 major industries where high-temperature strength and corrosion resistance are critical.

Aerospace & Defence

Inconel 625 plates serve jet engine casings, gas turbine shrouds and rocket motor housings where temperatures exceed 600°C.

Chemical Processing

Grade 625 and 600 plates are used in reactor vessels and heat exchangers that handle hydrochloric and sulphuric acid on a continuous basis.

Oil & Gas

Inconel 625 plate meets NACE MR0175 requirements and is used in subsea equipment, flare stacks, and wellhead components exposed to sour gas environments.

Marine Engineering

Alloy 625 plate handles seawater corrosion, pitting, and crevice attack. Commonly used in offshore platform structures and seawater cooling systems.

Power Generation

Grade 600 is used in nuclear steam generators and furnace linings where consistent performance at high temperatures is required over long service periods.

Inconel Plate vs Stainless Steel Plate

The table below compares Inconel 625 and SS 316L across key performance properties to aid material selection.

Inconel plate is the right selection for service above 600°C or in chloride-rich environments. A Stainless Steel Plate remains suitable for moderate conditions at a lower cost.

Property	Inconel 625 Plate	SS 316L Plate
Max Service Temp	982°C (1800°F)	870°C (1600°F)
Tensile Strength	827 to 1034 MPa	485 to 620 MPa
Chloride SCC Resistance	Immune	Susceptible
Cost	Higher	Lower

Note: Inconel 625 and SS 316L are the most commonly used grades in their respective alloy families, so they are the most practical and relevant options for engineers making real-world material choices.

Shipping & Packaging

Heavy-duty wooden boxes Packing

Export Packaging Standard

We strictly follow seaworthy export handling standards to protect inconel 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
Edge and corner protection with plastic padding
Silica gel desiccants to minimize moisture exposure
ISPM-15 fumigated wooden packaging for export

Plate Bundle Yard Staging

Plate Bundle Edge 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 price of Inconel Plate per kg? +

Inconel plate prices range from Rs 1,100 to 2,750 per kg in India. Grade 625 costs more. International pricing depends on grade, thickness and prevailing nickel market rates.

What is Inconel 625 plate material? +

Inconel 625 plate is a nickel-chromium-molybdenum-niobium superalloy manufactured to ASTM B443 / ASME SB-443. It contains 58% min nickel, 21 to 23% chromium, 8 to 10% molybdenum and 3.2 to 3.8% niobium.

Why is Inconel plate so expensive? +

Inconel plate costs more due to high nickel content (50 to 72%) and costly alloying elements. The manufacturing process uses vacuum or electro-slag remelting, followed by carefully controlled hot working.

Is Inconel plate better than Stainless Steel Plate for high-temperature use? +

Inconel plate retains strength and oxidation resistance above 600°C (1112°F), where stainless steel grades 304 and 316 creep and lose properties. Inconel is also resistant to chloride stress corrosion cracking.

Can Inconel plate be welded? +

Inconel 625 and 600 plates have excellent weldability using GTAW or GMAW with matching filler metals.

What ASTM standard covers Inconel 625 plate? +

Inconel 625 plate is covered by ASTM B443 / ASME SB-443. AMS 5599 covers aerospace requirements.

What sizes are available for Inconel plate? +

Inconel plate is available in thicknesses from 2.5 mm to 100 mm, widths up to 2000 mm and lengths up to 6000 mm. Custom sizes available on request.

Which Inconel grade plate is best for marine applications? +

Inconel 625 plate is the preferred grade for marine service. Its molybdenum and niobium content provides outstanding resistance to seawater corrosion and pitting.