19mm Malleable Iron Pipe Fittings Metallurgical Plumbing 90 Degree Elbow

Comparison table of hot galvanized malleable fittings elbow

Two major producing process of malleable cast iron

Rough casting:

1. Blast furnace smelting
2. Electric furnace adjustment
3. Sand Mixing or Core shooting core
4. Automatic modeling or Semi-automatic modeling
5. Casting
6. Broken box
7. Sorting code
8. Rough casting

During casting , we need to check the sample is made by molten iron , Spectral test and artificial test of the composition test . We will test the temperature after every pack of molten iron baked and before casting.

Surface processing:

1. Rough casting
2. Rough shot
3. Rough casting test
4. Annealing
5. Polished
6. Shaping
7. Flat
8. Fine shot
9. Cooked rough
10. Pickled
11. Hot galvanized
12. Hot galvanized Product.

• MALLEABLE CAST IRON - High quality malleable cast iron is perfectly anti-rust in oil and gas. Durable and no flexibility cast iron always used in many industry buildings. But malleable cast iron is unprocessed and needs to be cleaned and sealed to prevent rust before use.
• WIDE APPLICATION - You can use these pipe fittings to install a durable iron frame f or your pipe shelving, wall lamp or other home décor.