4j80 Imported Precision in High Permeability Soft Magnetic Alloy

• Product Type: Rod
• Material: Other
• Carbon Content: Other
• PCD: Other
• Delivery: 7-15 Days
• Price Item: T/T,30% Payment in Advance,70% T/T After The Co
• Model NO.: 4J80
• Quality Control: Mill Test Certificate Is Supplied with Shipment
• Export Country: USA,Southeast Asia,MID East,Africa,Eastern Asia
• Transport Package: Waterproof Cloth Packaging and on Pallets, or a
• Specification: 2.0*1250*C/1.5*1250*C/0.8*1250*C/1.0*1250*C
• Trademark: China
• Origin: China

Product Description

4J80
Examples of main features and uses: It has a medium linear thermal expansion coefficient within the range of room temperature to 600 degrees, non-magnetic, corrosion-resistant, and has high strength and toughness. It is used as a non-magnetic non-matching ceramic seal in gyroscopes and other electro-pneumatic devices. Material.
Use The alloy has a certain average linear expansion coefficient in the range of 20-600°C, and is used as a non-magnetic ceramic seal material in gyroscopes and other electric vacuum devices.
 

Chemical composition

	C	P	S	Mn	Si	Mo	W	Cu	Ni
						9.50	9.50	1.50
4J80	0.05	0.020	0.020	0.40	0.30	11.50	11.50	2.50	allowance

Note: 1. Under the condition that the average coefficient of linear expansion meets the requirements of this standard, the content of molybdenum, tungsten and copper is allowed to deviate from the range specified in the table.
       2. The specification, size and allowable deviation of the alloy shall comply with the relevant provisions of GB/T14985 "Expansion Alloy".

Linear Expansion Coefficient and Magnetic Permeability

	The sample heat treatment system	Average linear expansion coefficient ā/(10 6 / K)		Magnetic permeability μ200 /(mH/m)
		20~500ºC	20~600ºC
4J80	Heating to 850.950ºC in protective atmosphere or vacuum, keeping it warm for 30~40min, Cool at a speed of no more than 300ºC/h to below 300ºC and leave the oven	12.7~13.3	13.O~13.6	≤0.00125

The linear expansion coefficient of alloy

Average linear expansion coefficient of different temperature range ā/(10 6 / K)
20~100ºC	20~200ºC	20~300ºC	20~400ºC	20~500ºC	20~600ºC	20~700ºC	20~80DºC	20~900ºC	20~1000ºC	20~1C150ºC
11.6	11.9	12.4	12.7	13.O	13.0

 

 DC magnetic permeability of the alloy

Magnetic permeability at different magnetic field strengths/(mH/m)
4kA/m	8kA/m	12kA/m	16kA/m	32kA/m	40kA/m	80kA/m
0.00125084	1.00067		0.00125079		0.00125068	0.00125073

mechanical properties

	Tensile strength ób/MPa	The yield point  δ5/MPa	Modulus of elasticity  E/MPa	elongation (Lo=50mm)(%)	Cup drawing value /mm	hardness  HV
4J80	749.0	289.5	220650	55	12.6	156

other properties

	The resistivity  P/(μΩ· m)	density /(g/cm3)	Thermal conductivity  At/[W/(m· K)]
			20ºC	300ºC	600ºC
4J80	0 .88	9. 67	15.5	16.7	21.4

Solucky steel Limited is a third-party supply chain service enterprise focusing on materials for automobiles, high-end household appliances, as well as material processing and storage. Its headquarters and warehouse base are set up in Shanghai BaoShan, and has branches all over the country, 20+ subsidiary companies,including Foshan, Guangdong, Chongqing, Wuxi, etcz.
Main Products

 

Product Application

Machines & Processing

Packing & Delivery & logistics

Why Choose Us

FAQ
1.Where is your factory?
Our head office and warehouse located in Shanghai--the biggest steel making center of China 

2.How long is your delivery time?                                                                                
Generally it is 5-10 days if the goods are in stock. or it is 15-30 days if the goods are not in stock, it is according to quantity.      
                                                                         
3.What about the MOQ?                                                                                
MOQ only 200KG,include coils and sheets     
                                                                           
4. How long is your lead time?                                                                                
In general, our delivery time is within 7-15 days, and may be longer if the quantity is extremely large or special circumstances occur.
                                                                                
5.How's your product quality?                                                                                
We only sell mid to high end steel materials,100% quality guarantee and cost-effective.                                                                                
6.What are your terms of payment?                                                                                
You can make the payment to our bank account,T/T, 30% deposit in advance, 70% balance against the copy of B/L.  
                                                                             
7.How many countries you already exported to?                                                                                
We have exported to America, Canada, Brazil, Chile, Colombia, Russia, Ukraine, Thailand, Myanmar, Vietnam, India, Kenya, Ghana,somalia and other African countries.Our export experience is rich, we familiar with different market demands, can help customers avoid a lot of trouble.     
                                                                           
8.What are the certifications for your products?                                                                                
We have ISO 9001, MTC, third parties' inspections are all available such SGS, BV ect.