Complaint
By using centrifugal casting, sand casting and lost-wax casting processes, our main products are all kinds of hearth rolls, radiant tubes and other static castings used on hot rolling line, CAL, CGL and other many kinds of steel heat treatment furnaces. SMS, FIVES, CMI, Tenova, Chugai Ro, EBENER, DREVER as well as most of Chinese steel giants are all our customers.
Our casting products above and fiber products(fiber roller and fiber discs), as well as other non-metallic material products could also be used in non-ferrous metals industry,like aluminum, copper industry etc.Qingdao Yuanding Group Co., Ltd(hereinafter called QYD). was founded in 1966. it is a comprehensive manufacturing enterprise which was restructured by state-owned enterprises. Headquartered in the Central Business District of Qingdao City. QYD has seveninvestment holding companies and two manufacturing industrial parks in Qingdao which located in Chengyang and Jimo, covering an area of more than 400000 square meters. There are about 1100 employees including 286 engineers and technicians. All the leading products have passed the ISO 9001 and 14001 international system certification. The company has more 300 million RMB of fixed assets, with annual sales reaching 600-700 million RMB.
| Item | Content |
| Name | Radiant Tube |
| Material | Heatresistant alloy(HK40/1.4848; 1.4852; 2.4879; more 2), Inconel steel, or customized |
| Process | centrifugal casting or welding pipe for the tube; static casting for elbow parts, flanges are forged |
| Type | I type, U type, W type, P type, double P type |
| Working Temp. | 800-1500ºC |
| Specification | Outside diameter minimum 60mm; wall thinckness minimum 3mm; Max length: >9m |
| Applicable Industry | Metallurgical, petrochemical etc. |
