3j21 Serial Open-Style Import Precision and High Hardness, High Resistance Soft Magnetic Alloy

• Product Type: Rod
• Delivery: 7-15 Days
• Price Item: T/T,30% Payment in Advance,70% T/T After The Cop
• Model NO.: 3J21
• 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 AC
• Specification: 2.0*1250*C/1.5*1250*C/0.8*1250*C/1.0*1250*C
• Trademark: China
• Origin: China

Product Description

3J21

This alloy has the following properties:

3J21 is an elastic alloy containing 40% cobalt. The alloy has three characteristics: non-magnetic, corrosion-resistant, and high elasticity

Metallographic structure of 3J21:

3J21 alloy is austenitic structure

3J21 application range The application fields are:

1. Suitable for making non-magnetic, corrosion-resistant and highly elastic components

2. Stretching wire, spinning wire, etc. in precision instruments

Chemical composition

	%	P	S	N	Mu	Co	C	Mn	Si	Cr	Fe
3J21				14	6.5	39		0.30	0.15	19
		0.010	0.010	16	7.5	41	0.03	0.60	0.30	21	allowance

Physical properties 

density	8.4 g/cm3
Melting point	1372-1405ºC

3 j21-serial open-style solid solution state, the mechanical properties of the alloy at room temperature:

Alloy state	Tensile strength σb (Mpa)	elongation A5 %	hardness Hv
3J21	≥700	≥35	≤250

3 j21-serial open-style delivery status, the mechanical properties of the alloy at room temperature:

Varieties of products	The delivery status	Thickness or diameter	Performance category	Tensile strength σb (Mpa)	elongation A5 %
Steel belt	Cold rolled	0.20~2.5	A	1175~1470	≥5
Steel belt	Cold rolled	0.20~2.5	B	1470~1765	≥3
Steel wire	Cold drawn	0.20~5.0	A	1275~1570	≥8
Steel wire	Cold drawn	0.20~5.0	B	1570~1865	≥6

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.