Custom 455 Stainless Steel Bar (AMS 5617)
Arch Metals supplies Custom 455 stainless steel bar from Dallas, Texas, for aerospace and precision-component customers across Texas and the surrounding states. Custom 455 is a martensitic precipitation-hardening stainless steel that is easy to machine in the annealed condition and reaches very high strength after a single aging treatment. We supply bar to AMS 5617 and ASTM A564 Type XM-16 with certified material and saw cutting to length. Request a quote and we’ll confirm sizes and availability.
Custom 455 Stainless Steel Forms
- Round bar, Condition A (annealed)
- Bar aged to H900 through H1050 on request
Size availability changes with mill supply. Send us your sizes through our quote request form and we’ll confirm stock, lead time and pricing.
Custom 455 Conditions and Specifications
- Condition A bar (AMS 5617, ASTM A564 XM-16): annealed and readily machinable, then aged after machining.
- Aged conditions H900 to H1050 (AMS 5617): H900 gives maximum strength; higher aging temperatures improve toughness.
- Equivalent designations (UNS S45500)
Not sure which condition or specification your drawing calls for? Send us the print requirements and we’ll match the material.
Typical Properties of Custom 455 (H900)
- Ultimate tensile strength: about 235 ksi (1620 MPa)
- Yield strength: about 220 ksi (1517 MPa)
- Elongation: about 10%
- Hardness: about 49 HRC
- Density: 0.280 lb/in³ (7.76 g/cm³)
- Chemistry: about 12% chromium, 8.5% nickel and 1.2% titanium, with copper and niobium
These are typical values for Custom 455 in the H900 condition. Guaranteed minimums vary by specification, condition and size, so check the governing spec or your mill cert for design values.
Why Engineers Choose Custom 455
Custom 455 reaches strength well beyond 17-4PH stainless steel with a simple one-step aging treatment and very little distortion. It machines easily in Condition A, so complex parts can be finished before hardening. When toughness and stress-corrosion resistance at high strength are critical, compare it with Custom 465. Common uses for Custom 455 include:
- Aircraft fasteners and fittings
- Springs, shafts and collets
- Instrument and precision components
- Tooling where corrosion resistance is needed
Custom 455 Stainless Steel FAQs
How strong is Custom 455?
In the H900 condition it typically reaches about 235 ksi tensile strength, much higher than 17-4PH.
Is Custom 455 easy to machine?
Yes, in Condition A. It is usually machined first and then aged, which causes only a small dimensional change.
How does Custom 455 compare with Custom 465?
Custom 465 has better toughness and stress-corrosion resistance at similar strength and is common for critical aerospace parts. Custom 455 is a cost-effective choice when maximum toughness isn’t required.
Cut-to-Size Custom 455 Stainless Steel With Delivery Across Texas
We ship Custom 455 stainless steel throughout Texas, Oklahoma, Louisiana, New Mexico and Arizona, and we saw bar and plate to the size you need. See our processing services for cutting options, or browse all the metals we supply. We also supply Custom 465 and 17-4PH stainless bar.
To get pricing, send us the grade, condition, form, size, length and quantity through our quote request form, or call (888) 444-6061.
Custom 455 and Custom 465 are registered trademarks of CRS Holdings, LLC, a subsidiary of Carpenter Technology Corporation.