Inconel 825 Alloy Clad Plate

Inconel 825 Alloy Clad Plate

Inconel alloy 825 clad plate is made by combining nickel alloy 825 with carbon steel or low-alloy steel through a cladding process, offering the excellent corrosion resistance of alloy 825 along with the strength and cost advantages of the base steel. It is widely used in industries such as chemical, oil and gas, marine engineering, and nuclear power. Alloy 825 contains high nickel, chromium, molybdenum, and copper, enabling it to effectively resist corrosion in strong acid environments like sulfuric acid, phosphoric acid, and hydrofluoric acid, and it is especially suited for chloride and oxidative environments. The high nickel content also provides excellent resistance to stress corrosion cracking, making it ideal for seawater and chlorinated media, while maintaining high-temperature stability up to 550°C.

The base material is typically carbon steel (such as Q235B or A516) or low-alloy steel, which provides robust structural support and significant cost advantages. Cladding is commonly achieved through explosion welding or hot-rolling, creating a high-strength, stable interface. Nickel alloy 825 clad plates are widely used in: Chemical equipment（Reactors, evaporators, and storage tanks handling strong acids, resistant to sulfuric and phosphoric acid corrosion）、Marine engineering（Desalination equipment and ship cooling systems, resistant to chloride corrosion）、Environmental equipment（Flue gas desulfurization and wastewater treatment equipment, extending the service life of the equipment），This clad plate provides an economical and reliable solution for high-corrosion and high-temperature environments.

PRODUCING CONDITION

ASTM A265,ASTM A264,JIS G 3602,NB/T 47002 ect

Carbon steels such as ASME SA516, ASTM A516 Gr. 55, 60, 65, 70; Stainless steels like: ASTM A240, ASME SA240, ASTM A789, ASME SA789, ASTM A182, ASME SA182, EN 10028-2, EN 10088-2, EN 10088-7 etc.

ASTM B424/425; ASME SB424/425; UNS N08825;EN 10028-7 JIS NCF825 ect.

	Clad Layer THX.	TTL THX.	Max. Width	Max. Length
Explosive	min. 2mm	–	4.5m	14m
Explosive + Rolling	0.8-2mm	max. 152mm	4.5m	14m
Rolling	0.8-14mm	5-65mm	4.5m	14m

Thickness ratio of the cladding to the base material should be greater than or equal to 1:3 for roll bonding.

Others could be tailored due to customer’s unique need.

characteristics

Different composite methods have varying requirements for the cladding and base materials. We can provide customized production based on the specific needs of our customers.

Material Test Data

The following chemical composition and mechanical performance tests are based on ASTM A516 Gr70 + UNS N08825, with a thickness of 3+17mm for example.

Layer metal: 3mm thickness, grade UNS N08825 nickel alloy steel.

Base metal: 17mm thickness, grade ASTM A516 Gr70 steel.

Bonding method: roll bonding, it is also available for explosive bonding.

Chemical Composition

Clad layer chemical analysis (wt%) as below:

C	Si	Mn	P	S	Cu	Cr	Ni	Mo	Ti
0.006	0.18	0.41	0.016	0	2.09	22.57	38.94	3.11	0.69

Mechanical Performance

Mechanical performance as below：

A.A	DIM	SQ	CTM	BR(%)	T.S Rm (N/mm²)	Y.S ReL (N/mm²)	E.L. %	I.B.T d=1.5a 180°	E.B.T d=1.5a 180°	S.S. τ/MPa	CAve J/-46°	D1 /HBW	IC mm/Y	U.T
C.P	PASS	PASS	PASS	100%	500	323	38	PASS	PASS	375	28	151	PASS	PASS
A.A: Analysis Area DIM: Dimension SQ: Surface Quality CTM: Cladding Thickness Measurement BR(%): Bonding Rate					T.S Rm/(Mpa): Tensile Strength Y.S ReL/(Mpa): Yield Strength E.L A/%: Percentage Elongation After Fracture I.B.T d=1.5a 180°: Backside Bending angle=180° E.B.T d=1.5a 180°: Frontside Bending angle=180°					S.S. τ/MPa: Shear Strength CAve J/-46°: Charpy Absorbed Energy Average D1 /HBW: Average Hard Test of Base Metal IC mm/Y: Inter-granular Corrosion according to ASTM G28 A U.T: Ultrasonic Testing

Third Party Certificate

In accordance with ASTM A578/A578M Level B, we perform 100% ultrasonic testing (UT), ensuring a bonding rate of over 99%. Tests for chemical composition, mechanical properties, low-temperature impact, hardness, PWHT (Post Weld Heat Treatment), and HIC (Hydrogen-Induced Cracking) can be conducted as per customer requirements.

Additionally, we provide EN 10204 – 3.2 certification.

Lloyds

Bureau Veritas

CCS

TUV

SGS

CERTIFICATION

The company has achieved ISO 9001 Quality Management System certification, ISO 14001 Environmental Management System certification, and Occupational Health and Safety Management System certification. Other certifications, such as PED and API, are currently in the application process. Our clad plate products have also received CE certification for pressure vessels, while our marine clad plates have been certified by six national classification societies, including CCS, DNV GL, LR, BV, RINA, and ABS.

TUV certification

ABS certification 01

ABS certification 02

CE certification 02

CE certification 01

ISO 14001 certification

ISO 9001 certification

DELIVERY AND PACKING

Below is our standard packing method for export transportation, for other special requirements from our customers, we can customize. The surface of the clad plates is covered with a PE plastic film, followed by a layer of hard cardboard for protection. The outermost layer is waterproofed, and labels are applied to ensure effective identification. The product is then loaded for shipment.

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packing

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delivery

FAQ

Can customers specify the suppliers of raw materials such as pressure vessel steel, stainless steel, titanium, copper, and nickel-based alloys used in CLAD products when placing an order?

Of course, no problem. Our company has long-standing, strong partnerships with major steel mills such as TISCO, TSINGSHAN, Jinan Steel, CITIC Special Steel, NISCO, ANSTEEL, SHOUGANG, and SHAGANG, as well as suppliers of titanium, nickel alloys, and copper materials. Customers can specify their suppliers or provide their own raw materials.

Can we include our own specific requirements and agreements in addition to the general ordering terms?

Yes, it is certainly possible to include your own specific requirements and agreements alongside the standard ordering terms. This can be done through a customized agreement or contract that outlines any additional specifications, terms, or conditions unique to your order. It is essential that both parties reach mutual agreement on these additional terms before proceeding with the order to ensure clarity and alignment.

Can the customer request third-party inspection and a 3.2 certificate of compliance?

Yes, customers can request third-party inspection and the issuance of a 3.2 certificate of compliance. This certificate, which verifies that the product meets specific quality standards, can be provided upon request. The third-party inspection will be conducted by a recognized independent entity to ensure that the product complies with the agreed-upon specifications. Please inform us in advance if this is required, so we can make the necessary arrangements.

Does the company maintain a regular stock of cladded plates for quick delivery?

Due to the specific nature of cladded plates, each order is typically accompanied by a technical agreement, making it difficult for us to keep a large inventory. However, we do maintain some stock of certain grades of cladded plates. Feel free to inquire with us about availability.

What is the typical delivery time for your company’s cladded plates?

The delivery time depends on the arrival of base materials and cladding materials. If there are no special technical requirements, both rolling and explosion bonding processes can typically be completed and delivered within 25-35 days after the raw materials arrive.

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