Stainless Steel Round 303 - 3/4 Inch
Stainless Steel Round 303 - 3/4" x 144"
This 3/4" diameter 303 Stainless Steel Round Bar is a free-machining austenitic grade engineered for high-speed manufacturing. Conforming to ASTM A582, it delivers 90,000 PSI tensile strength with excellent machinability and good corrosion resistance, making it ideal for precision machined components. In stock Los Angeles.
- 303 Stainless Steel Construction
- ASTM A582 Certified
- 90,000 PSI Tensile Strength
- Excellent Machinability
Type 303 is an austenitic stainless steel specifically designed for superior machinability. An addition of sulfur to its composition reduces tool wear and allows for higher cutting speeds, a primary reason for its use in automated machining. While this modification enhances workability, it slightly reduces corrosion resistance compared to Type 304. It is non-magnetic and cannot be hardened by heat treatment.
As a medium-sized 3/4" round bar, this material provides a versatile and stable stock for a wide range of machined components. It is frequently specified for creating shafts, axles, gears, valves, and fittings where high-speed production and a smooth surface finish are critical project requirements.
Specifications
- Material: 303 Stainless Steel
- Standards: ASTM A582
- Strength/Tensile: 90,000 PSI
- Dimensions: 3/4" Diameter x 144" Length
- Finish: Cold Drawn, Annealed
- Certifications: Mill Test Report (MTR) Available
Applications
- Automated Machining: Shafts and axles - Medium diameter provides strength for load-bearing applications while allowing for high-speed turning.
- Industrial Fittings: Hydraulic and pneumatic fittings - Excellent machinability for creating precise threads and sealing surfaces.
- Automotive: Solenoid components and gear shafts - Consistent diameter and strength for reliable performance.
- Aerospace: Non-critical fittings and standoffs - Good strength-to-weight ratio and reliable machining for complex parts.
Target Users
Machinists, CNC operators, and product engineers rely on 303 Stainless Round Bar for its high-speed production benefits in industrial and manufacturing sectors throughout the Los Angeles area.
Finish Options
This product comes standard with a cold drawn finish, providing tight dimensional tolerances and a smooth, bright surface ready for machining. For specific project requirements, other finishes such as centerless ground or passivated may be available via special order. Contact our Los Angeles sales team for custom finish inquiries.
How to Measure
Round bar is measured by its diameter — the distance across the widest point of the circular cross-section. Use calipers or a micrometer for an accurate measurement.
Example: To order this round bar, specify "303 Stainless Round Bar, 3/4" diameter x 144" length".
Order Checklist
- Product name and required dimensions (3/4" x 144")
- Material specification and quantity
- Confirm grade (303) meets machinability requirements
- Surface finish requirements (Cold Drawn)
- Certifications required (Mill Test Report)
- Special handling or delivery requirements
Quick Facts
- Product
- Stainless Steel Round 303 - 3/4" x 144"
- Material
- 303 Stainless Steel
- Standards
- ASTM A582
- Key Properties
- 90,000 PSI tensile, Excellent Machinability, Good Corrosion Resistance
- Primary Applications
- Shafts, Axles, Fittings, Machined Components
- Location
- Los Angeles warehouse - Same-day pickup available
Available Sizes
We stock 303 Stainless Round Bar in diameters from 1/8" to 6" and standard lengths of 144". This 3/4" x 144" size is available for immediate pickup in Los Angeles.
Custom cutting services available.
Contact for Sizing

