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Nickel-copper Alloy N4
Pure nickel (N4) is a core material in many high-end manufacturing fields due to its high purity (nickel content ≥99.9%), excellent corrosion resistance, good electrical conductivity, and high-temperature stability. High purity is ensured through vacuum induction melting, and various forms of N4 products are available, such as bars, tubes, strips, wires, and plates, with a full range of specifications. Production can be carried out according to domestic and international standards.
Nickel Alloy 200
Nickel Alloy 200 is manufactured using vacuum induction melting (VIM) to ensure high purity and low gas content. Subsequent processes such as hot rolling, cold drawing, and precision grinding can produce products of various shapes and tolerances. It exhibits excellent resistance to reducing media, alkaline solutions (especially caustic soda), and numerous salt solutions; possesses high electrical conductivity and good magnetostrictive properties, making it widely applicable in the electronics field; and in sulfur-free reducing atmospheres, NI200 can be used for extended periods up to approximately 600°C, and features low gas solubility and low vapor pressure, making it suitable for aerospace components and energy applications.
Nickel Alloy 201
The core technological advantage of Nickel Alloy 201 lies in its high-purity material and extremely low carbon content design, ensuring its stability in high-temperature environments. It is used in various applications including the alkali industry (ion-exchange membrane caustic soda production), chemical equipment, food processing, electronics and electrical engineering, automotive exhaust catalysts, and aerospace. With a production capacity of 500 tons per year, the mature and stable production system can meet continuous customer demand. The product is available in various forms including plates, tubes, rods, wires, strips, and foils, with diverse specifications to meet the customized needs of customers in different industries.

Elastic Alloy 3J1

Precipitation-hardening austenitic alloys, after solution treatment, exhibit good plasticity, low hardness, and are easily processed and formed; After solution treatment or cold deformation followed by aging treatment, they achieve high elastic properties; They can operate under high temperatures, high stresses, or in corrosive environments; They can operate in environments below 200℃. Specifications: φ20-120*L or square bar Product uses: Can be used to manufacture various diaphragms, bellows, springs, and other elastic components in instruments.

1. Melting Method: Vacuum Induction + Gas-Shielded Electroslag Remelting

2. Technical Standards: YB/T5256-2011, GB/T37797-2019

3. Chemical Composition of 3J1 Alloy (wt/%)

C	Si	Mn	P	S	Cr	Ni	Ti	Al	Fe
≤0.05	≤0.08	≤1.00	≤0.02	≤0.02	11.5-13	34.5-36.5	2.70-3.20	1.00-1.80	余

4. 3J1 Mechanical Properties

Product shape	Delivery status	Thickness or diameter/mm	Rm/MPa	A/%
Product shape	Delivery status	Thickness or diameter/mm	≥
Bring	cold rolling	0.20-2.50	1372	5
Great	cold drawing	3.0-18.0	1372	5
Round and flat materials	Hot rolling, hot forging	6.0-25.0	1176	10
		＞25.0-60.0	1030	14
		＞60	800	14

5.3 Key Characteristics of J1 Alloy

High elasticity: Able to withstand significant deformation without fracturing and fully recover to its original shape after unloading.
High strength: Possesses high tensile strength and yield strength, allowing it to withstand high loads.
Corrosion resistance: Similar to stainless steel, it exhibits good corrosion resistance to the atmosphere, water, and various chemical media.
Non-magnetic: In the annealed state and after specific treatments, it does not exhibit magnetism in weak magnetic fields.
High fatigue strength: Not prone to fatigue cracks under alternating stress, resulting in a long service life.
Good thermal stability: Its elastic properties change very little within a certain temperature range (e.g., -40°C to +100°C).

6. Applications of 3J1 Alloy

Diaphragms and capsules: Used in pressure and vacuum sensors and controllers. When pressure changes, the diaphragm undergoes elastic deformation, driving a pointer or electrical signal output.

Bellows: Used for sealing, isolation, compensation, or pressure sensing, widely used in valves, sealing devices, and temperature and pressure controllers.

Bourdon tubes: The core component of mechanical pressure gauges, indicating pressure through the bending deformation of the tube.

Suspension wires: Used in high-precision electrical meters (such as galvanometers and accelerometers) to support the moving coil and generate a restoring torque.

Springs: Especially springs requiring non-magnetic properties, high precision, and long service life, such as load-bearing springs in precision machinery and springs in aircraft engine control systems.

Fasteners: Used for fasteners with special environmental requirements (such as non-magnetic and corrosion-resistant).

Bearing components: Used as elastic support elements in bearings for certain special applications.

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3J1 3J1 elastic alloy

Products

Featured products

Nickel-copper Alloy N4

Nickel Alloy 200

Nickel Alloy 201

Elastic Alloy 3J1