Spring steel wire is one kind of steel wire used for spring or wire form. According to the different application area of spring, the quality requirement of spring steel wire has a very big difference. We make various spring steel wires for mattress, bumper, suspension spring, engine valve, camera shutter and so on. The steel spring wire can also be classified into 4 main types based on manufacturing technology: galvanized spring s teel wire, patented spring steel wire, oil tempered steel wire and general type wire.
The raw materials for spring steel wire include 65#,70#、65Mn、 82B、72A、72B steel wire rod.
* Low plasticity, strong flexibility, powerful anti-stress.
* Special treatment available for special application, such as alloy spring steel wire, high stress spring, valve spring, air hammer, press machine, music steel wire and so on.
* 20 years experience on manufacturing makes the quality super stable
* strictly control of the tolerance within 0.02mm.
* High quality steel wire rod as the raw material as we are a strategic partner of Shagang steel group. Baosteel and Zhongtian Steel group
From 0.2 to 10 mm
Quality Standard we can do :
ISO 8458， EN10270 , JIS 3521, DIN17223, ASTM A227,228,407, 713, 764
All of our quality assurance programs are in accordance with ISO standards and we are working toward full certification.
Inspection procedures are implemented to ensure quality of all products manufactured.
All inspection and measuring equipment is calibrated on a continual basis. Records are available for review upon request.
Full material and process certifications are kept on file. They are also included with the order shipment when requested.
Outside venders are audited annually to ensure quality. Outside processes include heat treatment, plating, painting etc.
Unless otherwise specified, we keep our customer’s records indefinitely.
This ensures a full history of each part.