ALSO LOOK FOR CUSTOM 450 AND CUSTOM 455 UNDER OUR CASTINGS PAGE
CUSTOM 450 & CUSTOM 455, XM-25 & XM-16 STAINLESS STEEL
Custom 450® stainless is a martensitic age-hardenable stainless steel which exhibits very good corrosion resistance (similar to that of Stainless Type 304) with moderate strength (similar to that of Stainless Type 410). the alloy has a yield strength somewhat greater than 100 ksi (689 MPa) in the annealed condition, but is easily fabricated. A single-step aging treatment develops higher strength with good ductility and toughness. This stainless can be machined, hot-worked, and cold-formed in the same manner as other martensitic age-hardenable stainless steels. A particular advantage is ease of welding and brazing. Custom 450 stainless is generally supplied in the annealed condition, requiring no heat treatment by the user for many applications. Because it has corrosion resistance like Type 304 stainless but three times the yield strength, it has been used in applications where Type 304 was not strong enough. On the other hand, it has also replaced Type 410 stainless directly on a strength basis where Type 410 had insufficient corrosion resistance. Mechanical properties will depend on the aging temperature selected.
Custom 455 stainless, a martensitic age-hardenable stainless steel. This alloy is relatively soft and formable in the annealed condition. A single-step aging treatment develops exceptionally high yield strength with good ductility and toughness. This stainless can be machined in the annealed condition, and welded in much the same manner as other precipitation hardenable stainless steels. Because of its low work-hardening rate, it can be extensively cold formed. The dimensional change during hardening is only about -0.001 in/in, which permits close-tolerance finish machining in the annealed state. Custom 455 stainless represents a significant advancement in the area of precipitation hardening stainless steels. It should be considered where simplicity of heat treatment, ease of fabrication, high strength and corrosion resistance are required in combination.
Custom 450® & Custom 455® is a registered trademark of Carpenter Technology Corporation
Used where high strength and good corrosion resistance is required.
UNS# S45000 CUSTOM 450, XM-25 STAINLESS STEEL
UNS# S45500 CUSTOM 455, XM-16, 12-9-2 STAINLESS STEEL
AMS 5578D CUSTOM 455 WELDED TUBING
AMS 5617G CUSTOM 455 BARS & FORGINGS
AMS 5672B CUSTOM 455 WIRE
AMS 5763B CUSTOM 450 BARS, FORGINGS & TUBING & RINGS
AMS 5773C CUSTOM 450 BARS,WIRE,FORGINGS,TUBING & RINGS
AMS 5859C CUSTOM 450 SHEET, STRIP & PLATE
AMS 5860D CUSTOM 455 SHEET, STRIP & PLATE
AMS 5863C CUSTOM 450 SHEET, STRIP & PLATE
ASTM A-313 SPRING WIRE
ASTM A-564 HR & CF AGE-HARDENED BARS & SHAPES
ASTM A-693 PLATE, SHEET & STRIP
ASTM A-705 FORGINGS
MIL-S-83311 BAR & WIRE (455) CORROSION RESISTANT, PRECIPITATION HARDENING
- Centrifugal Castings