AMS 5621 - 420 Stainless Steel Bars and Forgings
AMS 5621 specifies 420 Stainless Steel in the annealed condition, which is a corrosion-resistant bar and forgings specification with 13% chromium and 0.30-0.40% carbon content. Fighter Jet Metals provides AMS 5621 420 Stainless Steel for aerospace, defense, and industrial applications where machinability is required in the annealed condition along with high properties after hardening and tempering.
420 Stainless Steel, as per AMS 5621, provides comparable corrosion resistance to 410 Stainless Steel with increased hardness and strength due to the increased percentage of carbon. It is magnetic in the annealed and hardened conditions. It is machineable in the annealed condition but not used in this condition for applications.
Applications of AMS 5621
- Aerospace Fasteners and Structural Components
- Surgical and Medical Instruments
- Industrial Blades and Tooling
- Pump Shafts and Valve Components
- Defense and Firearm Parts
What is 420 Stainless Steel ?
420 Stainless Steel stands out for its strength and hardness, plus it holds up well against wear. Fighter Jet Metals offers it as bars, plates, and sheets—mostly for industries like aerospace, defense, surgical tools, and precision engineering, where reliable performance really matters.
420 STAINLESS STEEL SPECIFICATIONS
Bars & Forgins
High-quality bars and forgings suitable for structural, machined, and high-stress components.
Sheets & Plates
sheets offering excellent corrosion resistance and formability for demanding applications.
FEDERAL / MILITARY SPECIFICATIONS
Government-certified sheets ensuring performance and durability under critical service conditions.
Certified Material for Critical Service
All 420 Stainless Steel supplied by Fighter Jet Metals includes full mill test reports, heat numbers, and traceability documentation. Dual certifications and compliance with specific aerospace or military standards can be arranged upon request.