Plate 405 steel is a 12% chromium stainless steel designed to be used in the as-welded condition. Unlike the other grades of 12% chromium stainless, Plate 405 steel is not vulnerable to extensive hardening through air cooling from high temperatures.
Chemical Composition (%) Of Plate 405 steel
Cr | Ni | C | Si | Mn | P | S | AI |
11.5-14.5 | 0.50 | 0.08 | 0.03 | 1.0 | 0.04 | 0.03 | 0.1-0.3 |
Mechanical Properties Of Plate 405 steel
Tensile Strength ksi (min.) | Yield Strength 0.2% Offset ksi (min.) | Elongation - % in 50 mm (min.) | Hardness (Rockwell B) MAX |
60 | 25 | 20 | 88 |
Physical Properties Of Plate 405 steel
Denstiy lbm/in3 | 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 – 1450°F | at 200°F | at 32 – 212°F | in tension (E) |
0.279 | 9.2 | 20.5 | 416 | 0.11 | 28 x 106 |
Applications That Frequently Use Alloy Plate 405 steel Include, But Are Not Limited To:
Steam nozzles
Partitions
Annealing boxes
Quenching racks
Fabrications that cannot be annealed after welding
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