Yaqi SS304/SS316 Stainless Steel Ultra - Fine Tie Filter Safety Spring 0.018-0.05mm Diameter Wire

The quality control of our 1059 Oil quenched and tempered spring steel wire, Square steel wire ASTM-A401, 50crva spring steel wire ASTM-A401 includes the entire process of receiving logistics, warehousing, production process, packaging, delivery, and after-sales. We will adhere to the policy of 'integrity, proactiveness, responsibility, cooperation' and abide by the business philosophy of 'customer success is our success', to provide you with advanced products and perfect after-sales service. We have made unremitting efforts to establish a good reputation in the industry, and will strengthen internal risk and incentive mechanisms, unite and work together to build the company into the best enterprise in the industry. All our employees are willing to work with all customers to create a sincere, friendly, integrated and cooperative business space, and hope to receive the support and love of our customers, promoting our mutual development and progress. In recent years, our company has continuously adjusted its product structure and made a lot of efforts to optimize and improve product quality. We are always committed to providing customers with cost-effective and high-quality products as well as perfect after-sales service.

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 excellent talents in technology, service, production and management. We can meet the needs of various users with advanced technology and high-quality Yaqi SS304/SS316 Stainless Steel Ultra - Fine Tie Filter Safety Spring 0.018-0.05mm Diameter Wire. All our employees are willing to work with all customers to create a sincere, friendly, integrated and cooperative business space, and hope to receive the support and love of our customers, promoting our mutual development and progress. The president and all the company members would like to provide professional products and services for customers and sincerely welcome and cooperate with all native and foreign customers for a bright future.