Alloy 405 steel plates is one of the grades for Ferritic or Martensitic( Chromium) Stainless in standard ASTM A240/ A240M(latest version), which covers chromium, chromium nickel and chromium manganese nickel Alloy 405 steel plates, plate and strip for boilers, pressure vessels and relevant industrial fields.
Alloy 405 steel plates APPLICATIONS:
Applications that frequently use Alloy 405 steel plates include, but are not limited to:
Steam nozzles
Partitions
Annealing boxes
Quenching racks
Fabrications that cannot be annealed after welding
Alloy 405 steel plates can be easily machined due to its soft and ductile characteristics
Chemical Properties:
| C | Cr | Fe | Mn | Si | S | P | Ni | Al | |
|---|---|---|---|---|---|---|---|---|---|
| 405 | 0.08 max | min: 11.5 max: 14.5 | balance | 1.0 max | 1.0 max | 0.03 max | 0.04 max | 0.50 max | min: 0.1 max: 0.3 |
Alloy 405 steel plates Physical Properties:
| Denstiy lbm/in^3 | Coefficient of Thermal Expansion (min/in)-°F | Thermal Conductivity BTU/hr-ft-°F | Specific Heat BTU/lbm -°F | Modules of Elasticity (annealed)^2-psi | |
|---|---|---|---|---|---|
| at 68 °F | at 68 – 212°F | at 68 – 1832°F | at 200°F | at 32 – 212°F | in tension (E) |
| 0.279 | 9.2 | 20.5 | 416 | 0.11 | 28 x 10^6 |



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