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Continuous Cast Gray Iron, Class 40 U3
ASTM A 48 Class 40 (USA), Meehanite GC 275 (GC40)
**All of our Iron Alloy Products are Meehanite Certified and ASTM Certified.
The highest strength, hardness, resistance to wear and heat treat response for an unalloyed gray iron. Machinability, noise & vibration damping is Excellent - Very Good.
Product Highlights:
1.) Cost Savings – Ability to machine more quickly than steel, often 2 to 3 times faster, translating into more piece production per hour and cost savings.
2.) Fatigue Strength - optimal strength in tension, compression and fatigue
3.) Hardness – a wide range between 131 – 329 BHN
4.) Heat Treat Response - excellent response to heat treating
5.) Inventory - Available in diameters up to 30". Wide variety of sizes & shapes in “As Cast” Squares, rectangles, rounds, and trepanned tubes.
6.) Machinability – Our product's graphite properties result in faster machining (as much as 30%) and less scrap over carbon and alloy steels. How do you get less scrap? Our product doesn’t have a heat- treated edge!
7.) Surface Finish - The need for deburring is virtually eliminated. Parts are free from dross slag and other tool wearing inclusions. The superior finish, free from sand inclusions, results in longer tool life.
8.) Wear Resistance - resists galling and scuffing and will outperform heat-treated steel in a standard pin abrasion test when in the quench and tempered or austempered condition.
9.) Weight Reduction - weighs 10% less than steel resulting in substantial savings in initial purchase cost, transportation and delivery costs to the manufacturer.
10.) Tool Life - up to 300% longer than steel products.
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