Silicon Carbide Heating Rod Advantage . 1. High working temperature: 1500C (Surface Temperature) 2. Various shapes: Rod, U, W, Single Spiral, Doule Spiral shapes are availible. 3. Large size range: Diameter 14-54mm, Length 200-4500mm. 4. Fast Delivery: Normal quantity can be ready in 10 days. 5. Very competitive prices. How to Order Silicon Carbide Heating Rod 1. Choose the shape you need, like Rod, U, W, Single Spiral etc. 2. Out Diameter (OD) 3. Heating Zone Lengh (HZ) 4. Overall Length (OL) 5. Resistance you need. Order Sample: Rod type, OD30mm, HZ300mm, OL800mm, Resistance 0.4ohms.