Name:Forged Scm440 4140 42crmo steel retaining ring with QT/Forging steel sealing ring

Forged steel rings are use in industry, such as forging equipment; power plant equipment; hydraulic equipment; rolling mill equipment; petroleum machinery, etc.
The production process as "EF + (LF) + (VD) + ESR + forging and annealing (or normalizing) + heat treatment (quenching and tempering) + Machining + packaging + delivery. "
Quality control: chemical analysis, optical spectrum instrument, Mechanical properties for tensile strength, yield stress and elongation. Hardness testing, impact testing, coordinate measuring machine (CMM), metallographic analysis, magnetic flaw detector, Ultrasonic flaw detector.

Specifications:
Quality Control:
1: On line inspection, we perform 100% on line inspection during production not to release any problem during production.
2: 100% inspection on each finished products.
3: Customer's own inspection.
4: Third party inspection.
5: UT( Ultrasonic Testing), MT, X-ray test, Spectrometer, Tensile strength, Impact test machine, Hardness tester

Superiority
1. We had already passed the authentification by the ISO9001-2008, and established a completed set of quality assurance system.
2. Under such a complete set of quality assurance systems, there is a complete set of regulations for ordering, order handling, quality design, purchasing raw materials, working out production plan, production, test and inspection, packaging, storage, delivering, etc.
3. We also have a complete set of equipment and techniques for testing and controlling the performance of the forging products, which ensures our product quality to take a leading position among the products in domestic market and reach the international standard.