Type 321 coil is a chromium-nickel steel which was developed with improved intergranular-corrosion resistance. Type 321 coil is resistant to atmospheric corrosion, sterilizing solutions, many organic chemicals, and a wide variety of inorganic chemicals. Type 321 coil should be used for applications requiring heating between 800 °F and 1650 °F such as aircraft collector rings, and exhaust manifolds, expansion joints, and high temperature chemical process equipment.
chemical composition
| Grade | c | Si | Mn | Cr | P | S | Ti | N | Ni | |
| 321 | min | - | - | - | 17.0 | - | - | - | 9.0 | |
| max | 0.08 | 0.75 | 2.0 | 19.0 | 0.045 | 0.7 | 0.1 | 12.0 |
Packaging details- in order to provide damage-free end product the hand of the client, the manufacturing company always prefers standard packing method. This includes wooden case, wooden pallets or boxes. All this coil material is delivering carefully so as to maintain flaw-free shipment from supplier side.
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