Hastelloy C276 Alloy Clad Plate

Hastelloy C276 Alloy Clad Plate

Nickel-based alloy C276 clad steel plates combine the exceptional corrosion resistance of C276 with the high strength and cost-effectiveness of carbon steel, making them an ideal choice for chemical, petrochemical, and environmental engineering applications. C276 alloy is nickel-based, enhanced with molybdenum (15–17%), chromium (14.5–16.5%), iron (4.0–7.0%), and tungsten (3.0–4.5%), providing outstanding resistance to pitting, crevice corrosion, and stress corrosion cracking. It is particularly suitable for harsh environments involving strong oxidizing and reducing agents, as well as chloride-rich media. By bonding C276 to carbon steel (e.g., Q345R, SA516 Gr.70) or low-alloy steel, these composite plates deliver excellent corrosion resistance while significantly reducing material costs.

Composite plates are typically manufactured using explosive welding, hot rolling, or a combination of both techniques. Explosive welding is ideal for thicker plates, while hot rolling is better suited for large-scale production of thin plates. The hybrid approach ensures both high-quality metallurgical bonding and optimal plate geometry. These composite plates are extensively used in chemical equipment (heat exchangers, reactors, evaporators), environmental protection projects (desulfurization towers), and the oil and gas industry (storage tanks, pipelines). They excel in handling strong acids, chlorides, and seawater cooling environments.

PRODUCING CONDITION

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

ASME SA516, ASTM A516 Gr. 55, 60, 65, 70; ASME SA572, ASTM A572 Gr. 42, 50, 55, 60, 65; ASME SA533, ASTM A533 etc.

ASTM B575 N10276 (alloy C276) etc.

	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 Hastelloy C276 + Q345R (for pressure vessels), with a thickness of 5+46mm for example.

Layer metal: 5mm thickness, Hastelloy C276 nickel alloy steel

Base metal: 46mm thickness, grade Q345R pressure vessels steel

Bonding method: explosive bonding.

Chemical Composition

Clad layer chemical analysis (wt%) as below:

C	Si	Mn	P	S	Co	Cr	Ni	Mo	Fe	W	V
Max 0.01	Max 0.08	Max 1	Max 0.04	Max 0.03	Max 2.5	14.5-16.5	Bal.	15.0-17.0	4.0-7.0	3.0-4.5	Max 0.35

Mechanical Performance

Mechanical performance as below：

A.A	DIM	SQ	CTM	BR(%)	T.S Rm/(Mpa)	Y.S Rp0.2/(Mpa)	E.L. %	I.B.T d=4a 180°	S.S. τ/MPa	D1 /HV	IC mm/Y	U.T
C.P	PASS	PASS	PASS	100%	561	370	26	PASS	453	377	0.46	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°: Frontside Bending angle=180° S.S. τ/MPa: Shear Strength 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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