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Stainless Steel Custom 450

Custom 450* stainless is a martensitic age-hardened stainless steel. It has a high corrosion resistance similar to 304 stainless, but has the moderate strength closer to a 410 stainless. Custom 450* can be machined, hot-worked and cold formed, similar to many other martensitic age-hardenable stainless steels. It is well known for its ease in welding and brazing. The material is normally supplied in the annealed condition but can be heat treated to meet the H900, H1050 and H1150 conditions.

Chemical Properties

Element min max
Carbon — 0.05
Manganese — 1.00
Silicon — 1.00
Phosphorus — 0.030
Sulfur — 0.030
Chromium 14.00 16.00
Nickel 6.00 7.00
Molybdenum 0.50 1.00
Columbium 8 x C 0.75
Tantalum (See 3.1.2) — 0.05
Copper 1.25 1.75

Mechanical Properties (Solution Treated)

Property Value
Tensile Strength 125.0 ksi (860 MPa)
Yield Strength at 0.2% Offset 95.0 ksi (655 MPa)
Elongation in 4D 10%
Reduction of Area 40%

Select AMS Number:

AMS Number Alloy Type UNS Cross Ref. Spec Misc./Shape
AMS 5763 Custom 450 Steel S45000  
AMS 5763 Bar Custom 450 Steel S45000 - Bar AMS 5763 Bar
AMS 5763 Forging Custom 450 Steel S45000 - Forging AMS 5763 Forging
AMS 5763 Ring Custom 450 Steel S45000 - Ring AMS 5763 Ring
AMS 5763 Tubing Custom 450 Steel S45000 - Tubing AMS 5763 Tubing
AMS 5773 Custom 450 Stainless Steel S45000  
AMS 5773 Bar Custom 450 Stainless Steel S45000 - Bar AMS 5773 Bar
AMS 5773 Forging Custom 450 Stainless Steel S45000 - Forging AMS 5773 Forging
AMS 5773 Ring Custom 450 Stainless Steel S45000 - Ring AMS 5773 Ring
AMS 5773 Tubing Custom 450 Stainless Steel S45000 - Tubing AMS 5773 Tubing
AMS 5773 Wire Custom 450 Stainless Steel S45000 - Wire AMS 5773 Wire
AMS 5859 Custom 450 Stainless Steel S45000  
AMS 5859 Plate Custom 450 Stainless Steel S45000 - Plate AMS 5859 Plate
AMS 5859 Sheet Custom 450 Stainless Steel S45000 - Sheet AMS 5859 Sheet
AMS 5859 Strip Custom 450 Stainless Steel S45000 - Strip AMS 5859 Strip
AMS 5863 Custom 450 Stainless Steel S45000  
AMS 5863 Plate Custom 450 Stainless Steel S45000 - Plate AMS 5863 Plate
AMS 5863 Sheet Custom 450 Stainless Steel S45000 - Sheet AMS 5863 Sheet
AMS 5863 Strip Custom 450 Stainless Steel S45000 - Strip AMS 5863 Strip