Nickel Alloy Steel

Our product range covers nickel alloy seamless & welded pipes/tubes, plates, sheets, coils, strips, round bars, wires, as well as pipe fittings and forgings. Manufactured in accordance with international standards such as ASTM, ASME, EN, JIS, and GB, we supply a wide selection of common nickel alloy grades, including Nickel 200, Nickel 201, Inconel 600, Inconel 601, Inconel 625, Inconel 718, Incoloy 800, Incoloy 800H, Incoloy 800HT, Incoloy 825, Hastelloy C-276, Hastelloy C-22, and Monel 400.

 

Standard	Product
ASTM B161	Nickel seamless pipe and tube
ASTM B162	Nickel plate
ASTM B163	Nickel and nickel alloy condenser / heat exchanger tubes
ASTM B166	Nickel-chromium alloy rod, bar and wire
ASTM B167	Nickel-chromium alloy seamless pipe and tube
ASTM B407	Nickel-iron-chromium alloy seamless pipe and tube
ASTM B444	Nickel-chromium-molybdenum alloy pipe
ASTM B564	Nickel alloy forgings
ASTM B366	Nickel alloy fittings
ASTM B829	General requirements for nickel alloy seamless pipe and tube

Nickel Alloy Grade	UNS No.	ASTM / ASME Equivalent	EN / DIN Equivalent	JIS Equivalent
Nickel 200	N02200	ASTM B160 / B161 / B162	2.4066 / Ni 99.2	NW 2200
Nickel 201	N02201	ASTM B160 / B161 / B162	2.4068 / Ni 99.2	NW 2201
Monel 400	N04400	ASTM B127 / B163 / B164 / B165	2.4360 / NiCu30Fe	NW 4400
Monel K-500	N05500	ASTM B865	2.4375 / NiCu30Al	NW 5500
Inconel 600	N06600	ASTM B166 / B167 / B168	2.4816 / NiCr15Fe	NW 6600
Inconel 601	N06601	ASTM B166 / B167 / B168	2.4851 / NiCr23Fe	NW 6601
Inconel 625	N06625	ASTM B443 / B444 / B446	2.4856 / NiCr22Mo9Nb	NW 6625
Inconel 690	N06690	ASTM B166 / B167 / B168	2.4642 / NiCr29Fe	NW 6690
Inconel 718	N07718	ASTM B637	2.4668 / NiCr19Fe19Nb5Mo3	N/A
Inconel X-750	N07750	ASTM B637 / B805	2.4669 / NiCr15Fe7TiAl	N/A
Incoloy 800	N08800	ASTM B409 / B407 / B163	1.4876 / X2NiCrAlTi3220	NCF 2B
Incoloy 800H	N08810	ASTM B409 / B407	1.4958 / X2NiCrAlTi3220	NCF 2B
Incoloy 800HT	N08811	ASTM B409 / B407	1.4959 / X10NiCrAlTi3220	NCF 2B
Incoloy 825	N08825	ASTM B424 / B423 / B163	2.4858 / NiCr21Mo	NCF 2B
Hastelloy C-276	N10276	ASTM B575 / B622 / B626	2.4819 / NiMo16Cr15W	NW 6276
Hastelloy C-22	N06022	ASTM B575 / B622 / B626	2.4602 / NiCr21Mo14W	NW 6022
Hastelloy B-2	N10665	ASTM B333 / B626 / B622	2.4617 / NiMo28	NW 6465
Alloy 20	N08020	ASTM B463 / B473	2.4660 / X1NiCrMoCu25-20-5	N/A
Alloy 59	N06059	ASTM B575 / B622	2.4605 / NiCr23Mo16	N/A

 

 

For Nickel Alloy Plate / Sheet:Hot Rolled + Pickled｜Cold Rolled + Annealed｜Bright Annealed (BA)｜Polished｜Brushed｜Ground

For Nickel Alloy Pipe / Tube:Annealed & Pickled｜Bright Annealed (BA)｜Polished｜Electropolished｜Mechanically Polished｜Ground

For Nickel Alloy Bar:Hot Rolled｜Cold Drawn｜Bright Bar｜Centerless Ground｜Polished｜Machined

For Nickel Alloy Forgings:As-Forged｜Solution Annealed｜Pickled｜Machined｜Ground

 

If you'd like, let me know:The specific nickel alloy grade (e.g., Inconel 625, Hastelloy, Monel)The operational environment (e.g., high heat, marine, chemical)I can recommend the best treatment for your application.

Click to customize surface treatment

 

If you can share your specific operating environment (such as temperature, exposure to acids, or mechanical stress), I can recommend the exact nickel alloy grade and industry standard for your project.

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Our nickel alloy manufacturing system encompasses processes such as vacuum induction melting, vacuum consumable electrode melting, 2800mm four-high reversible rolling, vacuum annealing, hot/cold rolling, forging, cutting, and precision machining. Our production facilities are capable of manufacturing plates up to 2.6m × 16m and seamless pipes with single-piece lengths of up to 15m; we provide EN 10204 3.1/3.2 quality certificates and accommodate third-party inspections. Delivery times for standard stock items can be as short as seven days, while production orders are scheduled based on alloy grade, specifications, quantity, and inspection requirements.

 

We can arrange inspection according to the applicable ASTM, ASME, EN, DIN, JIS or customer-specific technical requirements.

Inspection Item	Purpose
Chemical Composition Analysis	Verify Ni, Cr, Mo, Fe and other alloying elements
PMI (Positive Material Identification)	Confirm alloy grade and material identity
Tensile Test	Verify tensile strength, yield strength and elongation
Hardness Test	Verify hardness and heat-treatment condition
Dimensional Inspection	Check OD, ID, wall thickness, length and tolerances
Visual Inspection	Check surface condition, scratches, cracks and defects
Ultrasonic Testing (UT)	Detect internal discontinuities
Eddy Current Testing (ECT)	Commonly used for tubing and heat-exchanger tubes
Radiographic Testing (RT)	Inspect welds and internal weld quality where applicable
Hydrostatic Testing	Verify pressure resistance of applicable pipes and tubes
Intergranular Corrosion Testing	Evaluate susceptibility to intergranular corrosion where specified
Surface Roughness Testing	Verify surface finish for precision applications

 

Nickel alloy products are carefully packaged according to their product form, dimensions, weight and transportation method to minimize the risk of surface damage, deformation and moisture contamination during international shipping.

Product Form	Recommended Packaging
Nickel Alloy Plate / Sheet	Wooden pallets + waterproof paper + protective film + steel strapping
Nickel Alloy Pipe / Tube	Plastic caps + waterproof wrapping + wooden cases or bundles + steel straps
Nickel Alloy Bar / Rod	Bundles + waterproof paper + plastic wrapping + steel straps
Nickel Alloy Wire	Coils / spools + moisture-proof wrapping + wooden cases
Nickel Alloy Forgings	Individual protection where required + wooden cases or heavy-duty pallets
Precision / Machined Parts	PE film / individual wrapping + anti-collision protection + export wooden cases

 

 

GNEE supplies nickel-based alloy products to international markets for chemical processing, petrochemical, power generation, heat exchanger, marine & offshore, aerospace, automotive and energy applications. Export products include nickel alloy plates, sheets, seamless pipes, welded pipes, tubes, round bars and forged components, with material certificates and inspection documentation available according to project requirements

 

Year	Destination Country	Product	Nickel Alloy Grade	Specification	Quantity	Application
2026	Germany	Nickel Alloy Seamless Pipes	Inconel 625	OD 60.3 × WT 5.54 mm × 6000 mm	12 Tons	Chemical Processing
2026	Saudi Arabia	Nickel Alloy Plates	Hastelloy C-276	6–20 mm × 1500 × 6000 mm	18 Tons	Petrochemical Equipment
2026	India	Nickel Alloy Tubes	Inconel 600	OD 25.4 × WT 2.11 mm	8 Tons	Heat Exchanger
2025	United Arab Emirates	Nickel Alloy Pipes	Inconel 625	NPS 2"–8", SCH 10S–40S	15 Tons	Oil & Gas
2025	South Korea	Nickel Alloy Round Bars	Inconel 718	Ø20–120 mm	10 Tons	Aerospace Components
2025	Singapore	Nickel Alloy Tubes	Incoloy 825	OD 19.05–38.1 mm	7 Tons	Marine & Offshore
2025	Turkey	Nickel Alloy Plates	Inconel 601	8–25 mm × 1500 × 6000 mm	20 Tons	High-Temperature Equipment
2024	Italy	Nickel Alloy Seamless Tubes	Hastelloy C-276	OD 12–76 mm	6 Tons	Chemical Processing
2024	Vietnam	Nickel Alloy Bars	Monel 400	Ø25–150 mm	9 Tons	Valves & Pumps
2024	Spain	Nickel Alloy Pipes	Inconel 625	OD 33.4–168.3 mm	14 Tons	Power Generation

 

 

1. What is the most corrosion-resistant nickel alloy?

There is no single “most corrosion-resistant” nickel alloy for every environment. Hastelloy C-276 (UNS N10276), containing approximately 15–17% Cr and 15–17% Mo, offers excellent resistance to pitting, crevice corrosion and many oxidizing or reducing acids, making it widely used in severe chemical-processing environments.

 

2. What is the difference between Inconel and Hastelloy?

Inconel alloys generally emphasize high-temperature strength, oxidation resistance and corrosion resistance, while Hastelloy alloys are particularly designed for aggressive chemical environments. For example, Inconel 625 (UNS N06625) contains about 9% Mo, while Hastelloy C-276 (UNS N10276) contains about 16% Mo and 4% W.

 

3. What is Inconel 625 used for?

Inconel 625 (UNS N06625) is a nickel-chromium-molybdenum alloy containing approximately 20–23% Cr and 8–10% Mo. Its combination of high strength and chloride corrosion resistance makes it suitable for offshore equipment, seawater systems, chemical processing, heat exchangers, aerospace components and exhaust systems.

 

4. What is Inconel 718 used for?

Inconel 718 (UNS N07718) is a precipitation-hardenable nickel alloy designed for high-strength applications. It can maintain useful mechanical properties at temperatures around 650°C, depending on condition and design requirements. Typical applications include aircraft engine components, gas turbines, fasteners, shafts and other high-temperature aerospace parts.

 

5. What is Hastelloy C276 used for?

Hastelloy C-276 (UNS N10276) is a nickel-chromium-molybdenum alloy containing approximately 15–17% Mo and 14.5–16.5% Cr. It provides excellent resistance to pitting, crevice corrosion and stress-corrosion cracking, making it suitable for reactors, scrubbers, heat exchangers, piping and chemical-processing equipment.

 

6. What is the difference between Inconel 625 and C276?

Inconel 625 (UNS N06625) contains approximately 20–23% Cr, 8–10% Mo and 3.15–4.15% Nb, providing an excellent balance of strength and corrosion resistance. Hastelloy C-276 (UNS N10276) contains higher Mo and W, making it particularly effective in severe reducing and localized corrosion environments.

 

7. What is Incoloy 800H?

Incoloy 800H (UNS N08810) is a nickel-iron-chromium alloy developed for high-temperature structural applications. Compared with standard Alloy 800, its controlled carbon content and grain structure provide improved creep and rupture strength. It is commonly used in petrochemical furnaces, heat exchangers, process heaters and high-temperature pressure equipment.

 

8. What is the difference between Incoloy 800 and 800H?

The main difference is their high-temperature mechanical performance. Incoloy 800 (UNS N08800) is commonly used for general high-temperature corrosion resistance, while 800H (UNS N08810) has controlled carbon and grain-size requirements designed to provide higher creep and rupture strength for elevated-temperature structural service.

 

9. What is Nickel 200?

Nickel 200 (UNS N02200) is commercially pure wrought nickel containing approximately 99% nickel or higher, with low carbon and low impurity levels. It offers excellent resistance to caustic alkalis and good electrical and thermal conductivity. Typical applications include chemical-processing equipment, food-processing equipment and alkali-handling systems.

 

10. What is the difference between Nickel 200 and Nickel 201?

Both Nickel 200 (UNS N02200) and Nickel 201 (UNS N02201) are commercially pure nickel. The key difference is carbon content: Nickel 201 has a maximum carbon content of approximately 0.02%, compared with about 0.15% maximum for Nickel 200, making 201 more suitable for elevated-temperature service where graphitization may be a concern.

 

11. What is Monel 400?

Monel 400 (UNS N04400) is a nickel-copper alloy containing approximately 63% minimum nickel and 28–34% copper. It combines good mechanical strength with excellent resistance to seawater, hydrofluoric acid and many neutral or alkaline environments. Typical applications include marine equipment, chemical processing, pumps, valves and heat exchangers.

 

12. What ASTM standards cover nickel alloy pipe?

Nickel alloy pipe is covered by different ASTM specifications depending on alloy and product type. Common examples include ASTM B161 for nickel seamless pipe and tube, ASTM B167 for nickel-chromium alloy seamless pipe and tube, ASTM B407 for nickel-iron-chromium alloys and ASTM B444 for nickel-chromium-molybdenum alloys.

 

13. What ASTM standard covers nickel alloy tube?

The applicable ASTM standard depends on the alloy, manufacturing method and application. ASTM B163 covers seamless nickel and nickel-alloy condenser and heat-exchanger tubes, while B161, B167, B407 and B444 cover specific nickel-alloy seamless tube and pipe families. The alloy UNS number should always be confirmed before selecting the specification.

 

14. Can nickel alloy products be supplied with MTC?

Yes. Nickel alloy products can be supplied with a Material Test Certificate (MTC), typically documenting heat number, chemical composition, mechanical properties, dimensions and applicable test results. For project procurement, EN 10204 3.1 or 3.2 certification can be requested when required by the purchase specification or end-user standard.

 

15. Can nickel alloy pipe be customized?

Yes. Nickel alloy pipe can generally be customized according to OD, wall thickness, length, alloy grade, manufacturing method, heat treatment and testing requirements. Depending on the grade and specification, suppliers can arrange seamless or welded pipe, cut-to-length dimensions, special tolerances and additional inspection such as UT, hydrostatic testing and PMI.

 

16. How do I choose the right nickel alloy?

Select the alloy based on operating temperature, pressure, corrosive medium, chloride concentration, pH, mechanical requirements and fabrication method. For example, Inconel 625 is widely selected for chloride-rich environments, Inconel 718 for high strength, and Hastelloy C-276 for severe chemical corrosion. Always verify the final selection against the applicable design standard.

 

17. How do I verify a nickel alloy grade?

Verify the UNS designation, chemical composition, heat number and material certificate against the purchase specification. PMI testing can rapidly confirm the major alloying elements, while laboratory chemical analysis provides more comprehensive verification. For critical applications, also compare tensile properties, hardness, heat treatment and applicable ASTM/ASME requirements with the MTC.

Gnee Steel (Tianjin) Co., Ltd. is well-known as one of the leading nickel alloy steel manufacturers and suppliers in China. Our factory offers customized nickel alloy steel made in China with competitive price. Welcome to contact us for wholesale service.

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