Orthodontic Niti Ovoid Wires (round) with FDA

It is our responsibility to meet customer needs, and we strive to provide customers with mature 55crsi steel wire ASTM-A401, 65Mn carbon spring steel wire, Square spring steel wire for sale and technical services with integrity and thoughtfulness. We believe that choosing us is the guarantee of choosing quality, and we look forward to cooperation with you sincerely! We hope to have long-term cooperation relationships with our clients. We take 'based on the local, fly over China, want to net the world' as the market orientation and development goal.

The following is the international standard classification method:

1, heat treatment oil: some types of oil are easily washed away by water because the oil is formulated with demulsifier. These oils can be called "soluble oil" and the manufacturer can determine the oil according to the user's requirements. 

(1) cold hardening (< 80 ℃) : A rapid quenching oil, UHA.B normal quenching oil, UHB. 

(2) A thermal quenching (30 ℃ -- 130 ℃) : A rapid quenching oil, UHC;B normal quenching oil UHD. 

(3) the thermal quenching (130 ℃ -- 180 ℃) : A rapid quenching oil, UHE;B normal quenching oil, UHF. 

(4) high temperature quenching (> 180 ℃) : A rapid quenching oil, UHG.B ordinary (normal) hardening oil, UHH. 

(5) vacuum quenching, UHV. 

(6) others, UHK. 

2. Heat treatment water:

(1) surface quenching: A water, UAA;B water-bearing liquid for rapid quenching, UAB;C water-bearing liquid for slow quenching, UAC. 

(2) integral quenching: A water, UAA;B water-bearing liquid for rapid quenching, UAD;C aqueous liquid for slow quenching, UAE; 

(3) others: UAK.  

3. Molten salt for treatment:

(1) 150 ℃ to 500 ℃, molten salt (150 ℃ -- 500 ℃), USA. 

(2) 500 ℃ to 700 ℃, molten salt (500 ℃ -- 700 ℃), USB; 

(3) others: USK.  

4. Gas for heat treatment: A air, UGA;B neutral gas, UGB;C reduced gas, UGC;D oxidation gas, UGD. 

5. Fluidized bed: UF. 

6, others: UK.  

Domestic classification of heat treated oils

Class I cold quenching oil:

A. ordinary quenching oil, used for quenching materials with small size and good hardenability. 

B. Fast quenching oil, used for quenching large and medium materials. 

C. overspeed quenching oil, used for quenching large and poor hardenability materials. 

D, bright quenching oil, used for small and medium section bearing steel, tool steel, cutting tool steel and instrument parts under the protection of the atmosphere of quenching. 

E, fast bright quenching oil, used for medium and poor hardenability of materials in a controlled atmosphere quenching. 

F, no. 1 vacuum quenching oil, used for medium materials under vacuum quenching. 

G, no. 2 vacuum quenching oil, used for quenching materials with good hardenability in vacuum state.  

Class II hot quenching oil:

A, no. 1, isothermal, graded and quenching oil, used to about 120 ℃ hot oil quenching. 

B, no. 2, isothermal, graded and quenching oil, used to about 160 ℃ hot oil quenching. 

Type III tempered oil:

A, no. 1 back to heat the oil, to about 150 ℃ tempering. 

B, no. 2 back to heat the oil, used to back to around 200 ℃

With wide experience and expertise, Friend Metal is engaged in the developing, manufacturing and marketing of oil tempered and quenched spring steel wire ASTM-A230-99, ASTM-A401, EN10270-2, JIS G3561. As a professional manufacturer, we now brings you high quality various steel wires made in China which comes in high strength, well toughness and excellent wearing resistance. We also welcome your customized orders.

We have an excellent design and development team, pursuing the combination of practical value and aesthetic art in the innovative designing of Orthodontic Niti Ovoid Wires (round) with FDA. The starting point for all our ideas and actions originates from our customers, therefore we dedicate to the success of our customers, become their partners and grow together with them. We should involve the enhancement of customer value as the starting point and continue to innovate to maintain a sustained competitive advantage.