Manufacturing

DUCTILE IRON

DUCTILE IRON is often known as:

• Spheroidal Graphite Iro
• SG Iron
• Nodular Iron
  
  

Grey Iron is the most traditional Iron but has limitations in use
where the speed and weight of modern traffic imposes great
demands in terms of product strength, impact resistance and
durability.

Ductile Iron has all the traditional qualities associated
with Grey Iron and is chemically almost identical.

However by treating the Iron with magnesium the
inherent weak nature of the flake graphite structure
is converted to a strong spheroidal graphite structure
otherwise known as Ductile Iron.

The obvious advantages in specifying and using Ductile Iron
Covers and Gratings are:

• Greater strength
• Higher impact resistance
• Better durability

The less obvious advantages include:

• Lighter castings for ease of installation
• Better utilisation of transportation
• Reduced injury risk in handling
• Less breakage in loading and unloading
• Economic use of resources and raw materials.

GREY IRON is often known as:

• Flake Graphite Iron
• Flake Iron
• Cast Iron