High Silicon Molybdenum is also referred to as SiMo Ductile Iron and High Silicon Moly. This material is a variation SG Iron that offers superior heat resisting characteristics.
High Silicon Molybdenum is typically the choice of engineers for such applications as turbochargers, manifold castings and any high temperature application where resistance to service temperatures of up to 820 degrees C is present. This material also offers good performance under thermal cycling conditions.
High Silicon Molybdenum Ductile Iron Exhaust Manifold
The enhanced heat resisting properties of High Silicon Molybdenum is achieved by the addition of varying degrees of Silicon and Molybdenum and carefully controlling carbon levels. The use of High Silicon Molybdenum in these applications is very cost-effective when service temperatures are in the range of 1200-1500ºF.
Uses and Benefits of High Silicon Molybdenum
•High Temperature Tensile Strength
•Stress-Rupture Strength
•Creep Strength
•Oxidation Resistance
•Structural Stability
•Great for exhaust manifolds on heavy machinery
This material also offers the following benefits:
Cost
This material has a much lower manufacturing cost than heat resisting steels.
Castability
High Silicon Molybdenum offers all the benefits of SG Iron in respect of near finished casting shape. Complex casting shapes with many changes of section can be cast.
Performance
High Silicon Molybdenum offers good thermal cycling performance and good resistance to growth at high temperature due to the micro structure of this material. |
