Custom 455
Description:
Alloy 455/ Custom 455 (AMS 5617)
Custom 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:
|
Element |
Content (%) |
|
Chromium, Cr |
11-12.5 |
|
Nickel, Ni |
7.5-9.5 |
|
Copper, Cu |
1.5-2.5 |
|
Titanium, Ti |
0.80-1.4 |
|
Molybdenum, Mo |
0.50 max |
|
Manganese, Mn |
0.50 max |
|
Silicon, Si |
0.50 max |
|
Columbium, Cb + Tantalum, Ta |
0.10-0.50 |
|
Carbon, C |
0.05 max |
|
Phosphorus, P |
0.040 max |
|
Sulfur, S |
0.030 max |
|
Iron, Fe |
Balance |
Mechanical Properties:
|
Condition |
0.2 % Yield Strength (Mpa) |
Ultimate Tensile Strength (Mpa) |
Notch Tensile Strength |
% Elongation in 4D |
% Reduction of Area |
Rockwell C Hardness |
Impact Strength (ft-lbs) |
|
A |
793 |
1000 |
1585 |
14 |
60 |
31 |
70 |
|
H900 |
1689 |
1724 |
1792 |
10 |
45 |
49 |
9 |
|
H950 |
1551 |
1620 |
2068 |
12 |
50 |
48 |
14 |
|
H1000 |
1379 |
1448 |
2000 |
14 |
55 |
45 |
20 |
|
H1050 |
1207 |
1310 |
1793 |
15 |
55 |
40 |
35 |
Specifications:
l AMS 5578 Welded tube
l AMS 5617 Gr 1 Bar
l AMS 5617 Gr 2 Bar
l AMS 5860 Sheet / strip / plate
l MIL-S-83311
l ASTM A564 / ASME SB564
l ASTM A693 Grade XM16
l HMS 6 1093 Rev G
l UNS 45500
Applications:
Stainless steel grade Custom 455 is widely used in applications where standard austenitic grades do not perform well such as strength requirements in corrosive environments.