AMS 5635 - 303 Stainless Steel Round Bar
AMS 5635 covers 303 Stainless Steel round bar that’s been annealed. 303 is an austenitic stainless steel, and what sets it apart is the extra sulfur, it really boosts machinability but still keeps that 18-8 chromium-nickel mix. You’ll see it used in parts that need to be machined with precision, like shafts, valves, fittings, and all sorts of components in the screw machine world.
Typical Applications of AMS 5635
AMS 5635 is used in :
- Aerospace fasteners and precision components
- Industrial machinery parts
- Screw machine components, shafts, and fittings
What is 303 Stainless Steel ?
Stainless Steel 303 is a free machining stainless steel. Due to the addition of sulfur this 18-8 chrome nickel stainless steel has enhanced machinability. Stainless Steel 303 is widely used in the screw machine industry, as well as for use in shafts, valves and fittings. Stainless Steel 303 is not recommended for vessels containing gases or liquids under high pressure.
303 STAINLESS STEEL SPECIFICATIONS
BARS & FORGINGS
High-strength bars and forgings for precision-machined parts.
Certified Material for Critical Service
303 Stainless Steel is available as certified material for critical service applications. This means that every batch is tested and documented to meet aerospace, defense, and industrial standards, ensuring compliance with chemical composition, mechanical properties, and dimensional tolerances.
Certification typically includes:
- Mill Test Reports (MTRs) verifying chemical and mechanical properties
- Compliance with AMS, MIL, and QQ specifications
- Traceability from raw material to finished product
- Assurance for use in high-performance, safety-critical components
By using certified 303 Stainless Steel, manufacturers and engineers can ensure reliable performance in critical applications, from aerospace fasteners to precision machinery, where material integrity and consistency are essential.