Precision Alloy Nickel Based Invar36 Feni36 4j36 Invar 36 Wire Price Per Kg
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Product Highlights
- Low Thermal Expansion: Extremely small coefficient of linear expansion ensures stable size over wide temperature ranges.
- High Precision Alloy: FeNi36 Invar 36 wire with 29% purity, ideal for precision instruments and aerospace components.
- OEM/ODM Support: Excellent R&D team available for custom design, engineering drawings, and sample-based customization.
- Fast Delivery: Products can be provided within a week after payment, with lead times within 15 workdays.
- Quality Certified: ISO9001 and SGS certified manufacturer established in 2002, ensuring strict quality control.
- Versatile Applications: Suitable for aviation, electronics, medical, chemical industries, and hermetic seals with Pyrex glass.
- Custom Dimensions: Diameter customizable from 6mm to 100mm to meet specific engineering requirements.
- Free Samples: Samples available upon request to help customers evaluate product quality before bulk orders.
Product Attributes
- Customization
- Available
- Application
- Aviation, Electronics, Industrial, Medical, Chemical, Making Hermetic Seals
- Standard
- JIS, GB, DIN, BS, ASTM, AISI
- Model NO.
- 1J33,3J01,3J9,4J29,4J32,4J33,4J45,FeNi50,Invar36
- Purity
- 29%
- Alloy
- Alloy
- Type
- Nickel Wire
- Powder
- Not Powder
- Density
- 8.36g/Cm
- Curie Temperature
- 435c
- Melting Point
- 1450c
- Diameter
- 6~100mm
- Transport Package
- Wooden Case
- Specification
- Customized
- Trademark
- DLX
- Origin
- Jiangsu, China
- HS Code
- 7506100000
- Production Capacity
- 1500tons/Year
Product Images of Precision Alloy Nickel Based Invar36 Feni36 4j36 Invar 36 Wire Price Per Kg
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Product Description

Precision alloy Invar, also known as FeNi alloy, is an alloy with extremely low coefficient of thermal expansion. It is mainly composed of iron (Fe) and nickel (Ni), usually containing 36% nickel and 64% iron. This alloy is known for its extremely small coefficient of linear expansion under temperature changes, which means it has a very stable size over a wide temperature range.
The low thermal expansion of Invar alloy makes it widely used in applications that require high precision and stability. It is often used to manufacture precision instruments, astronomical telescopes, laser equipment, clocks, aerospace components, and precision instruments in scientific laboratories. Due to its unique performance, Invar alloys play a crucial role in many fields that require high stability and reliability.
Kovar alloy is a vacuum melted, iron-nickel-cobalt, low expansion alloy whose chemical composition is controlled within narrow limits to assure precise uniform thermal expansion properties. Extensive quality controls are employed in the manufacture of this alloy to ensure uniform physical and mechanical properties for ease in deep drawing, stamping and machining.
Kovar alloy has been used for making hermetic seals with the harder Pyrex glasses and ceramic materials.This alloy has found wide application in power tubes, microwave tubes, transistors and diodes. In intergrated circuits, it has been used for the flat pack and the dual-in-line package.
| Element | Min | Max |
| Carbon | -- | 0.02 |
| Nickel | -- | 29.0 |
| Iron | Balance | |
| Silicon | -- | 0.20 |
| Manganese | -- | 0.30 |
| Cobalt | -- | 17.0 |
|
Chemical Composition
|
|||||||||
|
C
|
Mn
|
Si
|
P
|
S
|
Cu
|
Ni
|
Co
|
V
|
Fe
|
|
(≤)
|
|||||||||
|
0.04
|
0.3
|
0.3
|
0.02
|
0.02
|
0.2
|
0.5
|
49.0-51.0
|
0.80-1.80
|
Bal.
|
|
Alloy Type
|
Trade Name
|
UNS No.
|
Specifications
|
Forms Of Supply
|
|||
|
Rod
|
Strip
|
Wire
|
Sheet
|
||||
|
Ni29Co17
|
Kovar
|
K94610
|
ASTM F15
|
√
|
√
|
√
|
√
|
|
FeNi36
|
Invar 36
|
K93603
|
ASTM 1684
|
√
|
√
|
|
√
|
|
FeNi32Co5
|
Super Invar 32-5
|
KI93500
|
ASTMF1684
|
√
|
√
|
|
√
|
|
FeNi27Co25
|
Ceramvar
|
F1466
|
ASTMF1466
|
√
|
√
|
√
|
√
|
|
FeNi42
|
Alloy 42
|
K94100
|
ASTM F30
|
√
|
√
|
|
√
|
|
FeNi46
|
Alloy 46
|
K94600
|
ASTM F30
|
√
|
√
|
|
√
|
|
FeNi48
|
Alloy 48
|
K94800
|
ASTMF30
|
√
|
√
|
|
√
|
|
FeNi50
|
Alloy 52
|
K95050
|
ASTM F30
|
√
|
√
|
|
√
|
Thermal Expansion Properties
The following are the average coefficient of expansion properties after annealing in hydrogen for 1 hr at 1650°F (900°C) and 15 minutes at 2010°F (1099°C) and cooled to room temperature within 1 hr. Material heat treated using this procedure should not exhibit any transformation when cooled to -112°F (-80°C) for 4 hrs. This was determined by means of metallographic examination.Mean coefficient of thermal expansion as annealed.
| Temperature | Coefficient | ||
| 77°F to | 25°C to | 10(-6)/°F | 10(-6)/°C |
| 212 392 572 662 752 842 932 1112 1292 1472 1652 |
100 200 300 350 400 450 500 600 700 800 900 |
3.25 2.89 2.85 2.72 2.81 2.92 3.41 4.34 5.06 5.73 6.25 |
5.86 5.20 5.13 4.89 5.06 5.25 6.15 7.80 9.12 10.31 11.26 |
Soft magnetic alloys are a class of alloys with high permeability and low coercivity in weak magnetic fields. According to the different elements that make up the alloy, it can be divided into electromagnetic pure iron (industrial pure iron), iron-silicon alloy, iron-nickel alloy, iron-aluminum alloy, iron-silicon-aluminum alloy and iron-cobalt alloy, etc.1J06,1J12,1J17,1J18,1J22,1J30,1J36,1J38,1J46,1J50,1J51,1J54,1J76,1J77,1J79,1J80,1J85,1J87

Permanent magnet alloy not only has high hardness and mechanical properties, but also has strong anti-demagnetization ability, high coercivity value (greater than 20kA/m), magnetic "hard" and other characteristics, so it is also called hard magnetic alloy.2J04,2J07,2J09,2J10,2J31,2J53,2J84,2J85
Elastic alloys include high elastic alloys and constant elastic alloys. It is used to make elastic elements such as elastic sensitive elements, energy storage elements and frequency elements in precision instruments.3J01,3J21,3J53
Expansion alloys(Invar Alloy) are divided into Kovar alloys, ceramic sealing alloys, low expansion alloys, and constant expansion alloys. Widely used in electronic industry, precision measuring tools, precision instruments and low temperature engineering and other fields.4J28,4J29,4J32,4J33,4J36,4J40,4J42,4J50
Precision alloys with nickel, chromium, aluminum and iron as the main components, the resistivity is about three times higher than that of manganese copper, and has a lower temperature coefficient of resistance and low thermal potential to copper, with good long-term resistance stability and resistance. Oxidation properties.
It is suitable for making precision resistance elements in various measuring instruments and meters, making precision micro-resistance elements and strain gauges.6J10,6J15,6J20,6J22,6J23,6J24
| expansion alloy | ||||||||||
| Grade | C≤ | S≤ | P≤ | Mn | Si | Ni | Cr | Cu | Al | Fe |
| 6J10 | ≤0.05 | ≤0.01 | ≤0.01 | ≤0.3 | ≤0.2 | nI+cO rem | 9-10 | ≤0.2 | ≤0.4 | |
| 6J15 | ≤0.05 | ≤0.02 | ≤0.03 | ≤1.5 | 0.4-1.3 | 55-61 | 15-18 | ≤0.3 | rem | |
| 6J20 | ≤0.05 | ≤0.01 | ≤0.01 | ≤0.7 | 0.4-1.3 | rem | 20-23 | ≤0.3 | ≥1.5 | |
| 6J22 | ≤0.04 | ≤0.01 | ≤0.01 | 0.5-1.5 | ≤0.2 | rem | 19-21.5 | 2.7-3.2 | 2-3 | |
| 6J23 | ≤0.04 | ≤0.01 | ≤0.01 | 0.5-1.5 | ≤0.2 | rem | 19-21.5 | 2-3 | 2.7-3.2 | |
| 6J24 | ≤0.04 | ≤0.01 | ≤0.01 | 1.0-3.0 | 0.9-1.5 | rem | 19-21.5 | 2.7-3.2 | ≤0.5 | |




Precision Alloy Iron Nickel Invar Steel Invar36 Feni36 4j36 Invar 36 Wire Price Per Kg
Our company Principle is " Quality first, Customer first".
CHANGZHOU DLX ALLOY CO, LTD was established in 2002 and has got Iso9001 International Quality Management System Certificate and SGS Certificate. Our factory is professional in researching and producing special alloy material. From melting, drawing, heat treatment, finishing and testing .We offer nickel-based, copper-based, and iron-based alloys, including super alloy, welding materials, anti-corrosion alloy, precision alloy, FeCrAl alloy, NiCr alloy, CuNi alloy, thermocouple and etc, in the form of wire, strip, ribbon, bar, tube, plate.


1, We're able to design and develop the product what our customers require and meet their requirements through providing the appropriate engineering drawings or samples.
2, We can provide the products within a week after payment.
3, Wecan provide sample of the products customer need.
4, We always insist on "Quality first, Customer first" as our business philosophy.



Question: Are you a trading company or manufacturer?
Answer: We're manufacturer.
Question: could we visit your factory?
Answer: Sure, factory visit is warmly welcome.
About the Supplier
This supplier has been audited by SGS. Verify the report on the official SGS website with ID "QIP-ASR2441947". Items marked "" are certified.
Company Profile
DLX alloy, which is a alloy factory more than 23 years, we are founded in 2002, and run business with resistance alloy first. And in past 20 years, we R&D new product such as inconel, monel, hastelloy, high temperature alloy and other nickel based alloy products.
Over the years, we have worked hard to promote and realize the modernization of alloy sales, and actively cultivated and enhanced the ability of employees' independent innovation. All-round renovation and upgrade of the original business site, facilities and equipment, and modern computer management. Hope to establish long-term partnerships and win market reputation.
We are increasing thescale of trade and customers through out the world. With our good reputation we have won the trust of our customers. It's helps the modernisation of our country and promote the economic and technical exchanges with the rest of the world. We also look forward to enhance the friendship with other countries and make positive impact.
We warmly hope that you and us together, hand in hand, create a glorious future.
About Our Factory & Business Background
-
Business Type
- Trading Company
- Address
- Huanghe West Road, Changzhou, Jiangsu, China
-
Plant Area
- 1364 square meters
-
Number of Employees
- 38
-
Registered Capital
- 10,000,000 RMB
-
Terms of Payment
- LC, T/T, D/P, PayPal, Western Union, Small-amount payment
-
International Commercial Terms(Incoterms)
- FOB, CIF, CFR, EXW
-
Average Lead Time
-
Peak Season Lead Time: within 15 workdays, one month
Off Season Lead Time: within 15 workdays, one month -
Nearest Port
- Shanghai Port
-
Minimum Order Quantity
- 5 Kg
-
Supply Chain Partners
- 400
Our Production Capability & Technical Expertise
-
Main Products
- Nickel Strip, Nichrome Wire, Nickel Wire, Resistance Wire, Nickel Welding Wire, Inconel, Incoloy, Heating Wire, Thermocouple Wire, Nickel Alloy
-
QA/QC inspectors
- 2 people
-
Inspection Type for Finished Products
- Random inspection(Visual inspection & Function inspection)
-
Inspection Method for Finished Products
- Have instructions and uniformly followed
-
Customization Options
- Customization from Samples, Customization from Designs, Full Customization, Minor Customization, Flexible customization
-
ODM Service Available
- Yes
-
OEM Service Available
- Yes
-
R&D Engineers
- 4 people
-
Traceability of Raw Materials
- Yes
-
Test Reports for Raw Materials
- Others
-
Own Brand
- Yes
Our Industry Experience & Global Business Record
-
Year of Establishment
- 2016-03-15
-
Export Year
- 8 Years
-
Main Markets
- North America, South America, Europe, Southeast Asia/ Mideast, East Asia(Japan/ South Korea), Australia, Domestic, South Asia
-
Repeat Buyers Choice
- 50%~80%
-
Number of Foreign Trading Staff
- 20
-
Overseas Agent/Branch
- No
-
New Products Launched in Last year
- No
Our Certifications, Standards & Industry Recognition
-
Cooperated with Fortune 500
- No
FAQ
- Are you a trading company or manufacturer?
- We're manufacturer.
- Could you help to design the product?
- Yes, we have excellent R&D team, OEM/ODM orders are all welcome.
- Could you supply samples?
- Yes, wecould supply samples according to your requirement.
- could we visit your factory?
- Sure, factory visit is warmly welcome.
- What is the minimum order quantity?
- The minimum order quantity is 5 Kg.
- What are the payment terms?
- We accept LC, T/T, D/P, PayPal, Western Union, and Small-amount payment.
- What is the lead time for production?
- Peak season lead time is within 15 workdays or one month; off-season is within 15 workdays or one month.
- Is customization available for this wire?
- Yes, we offer customization from samples, designs, full customization, minor customization, and flexible customization.
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