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OhmAlloy-4J36 High Dimensional Stability Low Expansion Alloys Wear Resistant

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Good quality Bimetallic Strip for sales
Good quality Bimetallic Strip for sales
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OhmAlloy-4J36 High Dimensional Stability Low Expansion Alloys Wear Resistant

China OhmAlloy-4J36 High Dimensional Stability Low Expansion Alloys Wear Resistant supplier
OhmAlloy-4J36 High Dimensional Stability Low Expansion Alloys Wear Resistant supplier OhmAlloy-4J36 High Dimensional Stability Low Expansion Alloys Wear Resistant supplier OhmAlloy-4J36 High Dimensional Stability Low Expansion Alloys Wear Resistant supplier OhmAlloy-4J36 High Dimensional Stability Low Expansion Alloys Wear Resistant supplier

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Product Details:

Place of Origin: China(Shanghai)
Brand Name: OHMALLOY
Certification: ISO
Model Number: 4J36

Payment & Shipping Terms:

Minimum Order Quantity: 20kg
Price: negotiable
Packaging Details: in coil
Supply Ability: 5000kg/month
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Detailed Product Description
Material: Invar Alloy Surface: Bright

Ohmalloy Material Co.,Ltd is a high-tech enterprise which specialized in making all kinds of alloy such as high resistance alloy, low-resistance copper nickel alloy, precision alloy, FeCrAl alloy and thermocouple Alloy.

Ohmalloy Material Co.,Ltd have a full production line from melting, surface cleaning, rolling and slitting, full set of testing machine and can meet all kinds of technical requirement from customer. Our product is widely used in heating equipment, big steel mill, mineral, electrical equipment, food machinery, auto industry, aerospace industry. Our product not only is popular in domestic market, but also been exported to all over the world.

Our company aims to be the best-quality alloy producer in the world. We insist on developing the more advanced alloy strip technology, to serve all the customer, improve people’s living level, make a more green earth in the future

 

OhmAlloy-4J36 High Dimensional Stability Low Expansion Alloys Wear ResistantOhmAlloy-4J36 High Dimensional Stability Low Expansion Alloys Wear ResistantOhmAlloy-4J36 High Dimensional Stability Low Expansion Alloys Wear Resistant

 

 

 

OhmAlloy-4J36 (Invar) is used where high dimensional stability is required, such as precision instruments, clocks, seismic creep gauges, television shadow-mask frames, valves in motors, and antimagnetic watches. In land surveying, when first-order (high-precision) elevation leveling is to be performed, the Level staff (leveling rod) used is made of Invar, instead of wood, fiberglass, or other metals. Invar struts were used in some pistons to limit their thermal expansion inside their cylinders.

 

OhmAlloy-4J36 use oxyacetylene welding, electric arc welding, welding and other welding methods. Since the coefficient of expansion and chemical composition of the alloy is related should be avoided due to welding causes a change in the alloy composition, it is preferable to use Argon arc welding welding filler metals preferably contains 0.5% to 1.5% titanium, in order to reduce weld porosity and crack.

Normal composition%

Ni 35~37.0 Fe Bal. Co - Si ≤0.3
Mo - Cu - Cr - Mn 0.2~0.6
C ≤0.05 P ≤0.02 S ≤0.02    

 

 

Typical Physical properties

Density (g/cm3) 8.1
Electrical resistivity at 20℃(Ωmm2/m) 0.78
Temperature factor of resistivity(20℃~200℃)X10-6/℃ 3.7~3.9
Thermal conductivity, λ/ W/(m*℃) 11
Curie point Tc/ ℃ 230
Elastic Modulus, E/ Gpa 144

 

 

 

 

 

 

Coefficient of expansion

θ/℃ α1/10-6-1 θ/℃ α1/10-6-1
20~-60 1.8 20~250 3.6
20~-40 1.8 20~300 5.2
20~-20 1.6 20~350 6.5
20~-0 1.6 20~400 7.8
20~50 1.1 20~450 8.9
20~100 1.4 20~500 9.7
20~150 1.9 20~550 10.4
20~200 2.5 20~600 11.0

 

Typical Mechanical properties

Tensile Strength Elongation
Mpa %
641 14
689 9
731 8

 

Temperature factor of resistivity

Temperature range, ℃ 20~50 20~100 20~200 20~300 20~400
aR/ 103 *℃ 1.8 1.7 1.4 1.2 1.0

 

The heat treatment process
Annealing for stress relief Heated to 530~550℃ and hold 1~2 h. Cold down
annealing In order to eliminate hardening, which be bring out in cold-rolled, cold drawing process. Annealing needs heated to 830~880℃ in vacuum,hold 30 min.
The stabilization process
  • In protective media and heated to 830 ℃, hold 20min. ~ 1h, quench
  • Due to the stress generated by quenching, heated to 315℃,hold 1~4h.
Precautions
  • Can not be hardened by heat treatment
  • Surface treatment can be sandblasting, polishing or pickling.
  • Alloy can be used 25% hydrochloric acid pickling solution at 70 ℃ to clear oxidized surface

 

Style of supply

Alloys Name Type Dimension
OhmAlloy-4J36 Wire D= 0.1~8mm
OhmAlloy-4J36 Strip W= 5~250mm T= 0.1mm
OhmAlloy-4J36 Foil W= 10~100mm T= 0.01~0.1
OhmAlloy-4J36 Bar Dia= 8~100mm L= 50~1000

 

 

 

Testing room

OhmAlloy-4J36 High Dimensional Stability Low Expansion Alloys Wear Resistant

 

 

 

 

FAQ

1. What's the minimum quantity customer can order?
If we have your size in stock, we can provide any quantity you want.
If we do not have, for spool wire, we can produce 1 spool, about 2-3kg. For coil wire, 25kg.


2. How can you pay for small sample amount?
We have Western union account, wire transfer for sample amount also ok.

3. Customer do not have express account. How will we arrange the delivery for sample order?
Just need to provide your address information, we will check the express cost, you can arrange the express cost together with sample value.

4. What's our payment terms?
We can accept LC T/T payment terms, it also depending on delivery and total amount. Let's talk more in details after getting your detailed requirements.

5. Do you provide free samples?
If you want several meters and we have stock of your size, we can provide, customer need to bear the International express cost.

 

6.How do you guarantee the quality?

We have QC who are responsible for tracking and monitoring whole production process, and we are willing to accept customer‘s testing.

7. What's our working time?
We will give you reply through email/phone Online chat tool within 24 hours. No matter working day or holidays.

 

 

Contact Details
Ohmalloy Material Co.,Ltd

Contact Person: Mr. Qiu

Tel: +8613795230939

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