Technical Data Sheet
Alloy 455 is a martensitic age hardenable stainless steel, which has properties of high strength and good corrosion resistance. Alloy 455 is relatively soft and formable in the annealed condition, however through a single-stage aging treatment alloy 455 develops an exceptionally high yield strength with good ductility and toughness.
| Chemical Composition Limits | ||||||||||||
| Weight% | C | P | Si | Ni | Cu | Cb + Ta | Mn | S | Cr | Mo | Ti | Fe |
| Alloy 455 | 0.05 max | 0.040 max | 0.50 max | 7.5-9.5 | 1.5-2.5 | 0.10-0.50 | 0.50 max | 0.030 max | 11.0-12.5 | 0.50 max | 0.80-1.4 | Bal |
Typical Mechanical Properties
| Material | Condition |
0.2 % Yield Strength (Mpa) | Ultimate Tensile Strength (Mpa) | Notch Tensile Strength | % Elongation in 4D | % Reduction of Area | Rockwell C Hardness | Charpy V Notch Impact Strength (ft-lbs) |
| Alloy 455 Bar 1" Section Custom 455® |
A | 793 | 1000 | 1585 | 14 | 60 | 31 | 70 |
| Alloy 455 Bar 1" Section Custom 455® |
H900 | 1689 | 1724 | 1792 | 10 | 45 | 49 | 9 |
| Alloy 455 Bar 1" Section Custom 455® |
H950 | 1551 | 1620 | 2068 | 12 | 50 | 48 | 14 |
| Alloy 455 Bar 1" Section Custom 455® |
H1000 | 1379 | 1448 | 2000 | 14 | 55 | 45 | 20 |
| Alloy 455 Bar 1" Section Custom 455® |
H1050 | 1207 | 1310 | 1793 | 15 | 55 | 40 | 35 |
Availability
Alloy 455 is available as Bar (Round, Flat, Square, Shapes), Sheet, Plate, Wire, Strip, Billet, Forgings. For all stock availability contact Sales.
Specifications
AMS 5578 Welded tube
AMS 5617 Gr 1 Bar
AMS 5617 Gr 2 Bar
AMS 5860 Sheet / strip / plate
MIL-S-83311
ASTM A564 / ASME SB564
ASTM A693 Grade XM16
HMS 6 1093 Rev G
UNS 45500
For more information about Custom 455 for use in medical applications, visit our medical division at https://www.cnnickel.com