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Type 304 Rounds
Type 304 Rounds
Type 304 stainless steel (UNS S30400) is the fundamental "18-8" chromium-nickel austenitic stainless steel, widely recognized for its excellent corrosion resistance, good mechanical properties, and outstanding formability. Type 304 rounds are versatile solid bars used across countless industrial and manufacturing sectors where durability and corrosion resistance are essential.
- 304 Stainless Steel (UNS S30400)
- 18-8 Chromium-Nickel
- Austenitic stainless
- Excellent corrosion resistance
- Good weldability
- Solid round bars
Overview
Type 304 Stainless Steel Rounds represent the most versatile and widely used austenitic stainless steel grade available in round bar form. Known for their excellent corrosion resistance, good mechanical properties, and outstanding formability, these rounds serve as fundamental components across countless industrial and manufacturing sectors. Their chromium-nickel composition provides reliable performance in various environments, making them the go-to choice for engineers and fabricators seeking dependable material solutions.
Technical Overview: Type 304 rounds contain approximately 18% chromium and 8% nickel, which creates a balanced austenitic structure that offers superior corrosion resistance compared to many other steel alloys. This chemical composition enables excellent welding characteristics without the need for post-weld annealing in most applications. The material maintains good strength at both high and low temperatures, with useful service ranging from cryogenic applications up to approximately 870C (1600F).
Applications: Type 304 rounds find extensive use in chemical processing equipment, food and beverage machinery, pharmaceutical manufacturing systems, architectural components, and marine applications. Their resistance to oxidation and corrosion makes them ideal for fasteners, shafts, valves, pumps, and other critical components exposed to corrosive environments. The material's hygienic properties and ease of cleaning further enhance its suitability for food processing and medical applications where sanitation is paramount.
Advantages: The primary benefits of Type 304 stainless steel rounds include exceptional corrosion resistance in most environments, excellent formability and machinability, high tensile and yield strength, good low-temperature toughness, and outstanding weldability. These rounds offer cost-effective performance for applications requiring durability and corrosion resistance without the premium cost of higher alloyed alternatives. Their availability in various diameters and finishes ensures compatibility with diverse manufacturing requirements and project specifications.
Specifications
- ASTM Standards: A276, A479; AISI/SAE: 304; UNS: S30400; EN: 1.4301
- Diameter Range: 0.125" to 12" (3mm to 300mm)
- Tolerance: 0.005" for diameters up to 1", 0.010" for diameters 1" to 3", 0.015" for diameters over 3"
- Length: Standard 12' to 20' random lengths, custom lengths available
- Condition: Annealed, centerless ground, hot rolled, or cold finished
- Certification: Mill Test Reports available with chemical analysis and mechanical properties
Values may vary by mill & heat; verify against the MTR for your order.
Applications
- Chemical Processing: Reactor vessels, heat exchangers, piping systems
- Food & Beverage: Processing equipment, storage tanks, conveyor systems
- Pharmaceutical: Manufacturing equipment, sanitary fittings, process piping
- Architectural: Railings, fasteners, structural components in corrosive environments
- Marine: Boat fittings, hardware, components exposed to saltwater
- Automotive: Exhaust systems, trim, fasteners requiring corrosion resistance
- Medical: Surgical instruments, equipment frames, hygienic applications
Weldability
- Excellent weldability using TIG, MIG, plasma arc, and resistance welding
- Recommended filler metals: 308L or 309L stainless steel
- Good for both fusion and solid-state welding techniques
- Post-weld annealing may be required for maximum corrosion resistance
- Low carbon version (304L) available for improved weldability
How to Measure
To order Type 304 rounds, provide:
- Diameter (?) in inches or millimeters
- Length in feet or meters
- Material specification (Type 304 or 304L)
- Surface finish (hot rolled, cold finished, centerless ground)
- Required tolerances for diameter and straightness
- Quantity and cutting instructions
- Certification requirements (MTR, material test reports)
Order Checklist
- Material: Type 304 or 304L Stainless Steel
- Diameter (?) and required Length
- Surface finish requirements
- Quantity and cutting instructions
- Required tolerances (diameter, straightness)
- Certifications (MTR, material test reports)
- Packaging and shipping instructions
| Item Size & Description | Weight (lbs.)/Ft | Select Size | Qty | Price | Actions |
|---|---|---|---|---|---|
| 0.042 |
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Enter quantity between 1 and 999 | Select a Size | ||
| 0.094 |
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Enter quantity between 1 and 999 | Select a Size | ||
| 0.167 |
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Enter quantity between 1 and 999 | Select a Size | ||
| 0.261 |
Choose from predefined sizes or select custom size for manual entry |
Enter quantity between 1 and 999 | Select a Size | ||
| 0.376 |
Choose from predefined sizes or select custom size for manual entry |
Enter quantity between 1 and 999 | Select a Size | ||
| 0.511 |
Choose from predefined sizes or select custom size for manual entry |
Enter quantity between 1 and 999 | Select a Size | ||
| 0.668 |
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Enter quantity between 1 and 999 | Select a Size | ||
| 0.845 |
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Enter quantity between 1 and 999 | Select a Size | ||
| 1.043 |
Choose from predefined sizes or select custom size for manual entry |
Enter quantity between 1 and 999 | Select a Size | ||
| 1.502 |
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| 2.670 |
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Enter quantity between 1 and 999 | Select a Size | ||
| 4.177 |
Choose from predefined sizes or select custom size for manual entry |
Enter quantity between 1 and 999 | Select a Size | ||
| 5.053 |
Choose from predefined sizes or select custom size for manual entry |
Enter quantity between 1 and 999 | Select a Size | ||
| 6.517 |
Choose from predefined sizes or select custom size for manual entry |
Enter quantity between 1 and 999 | Select a Size | ||
| 16.692 |
Choose from predefined sizes or select custom size for manual entry |
Enter quantity between 1 and 999 | Select a Size |
Select a Size
0.094
Choose from predefined sizes or select custom size for manual entry
Enter quantity between 1 and 999
Select a Size
0.167
Choose from predefined sizes or select custom size for manual entry
Enter quantity between 1 and 999
Select a Size
0.261
Choose from predefined sizes or select custom size for manual entry
Enter quantity between 1 and 999
Select a Size
0.376
Choose from predefined sizes or select custom size for manual entry
Enter quantity between 1 and 999
Select a Size
0.511
Choose from predefined sizes or select custom size for manual entry
Enter quantity between 1 and 999
Select a Size
0.668
Choose from predefined sizes or select custom size for manual entry
Enter quantity between 1 and 999
Select a Size
0.845
Choose from predefined sizes or select custom size for manual entry
Enter quantity between 1 and 999
Select a Size
1.043
Choose from predefined sizes or select custom size for manual entry
Enter quantity between 1 and 999
Select a Size
1.502
Choose from predefined sizes or select custom size for manual entry
Enter quantity between 1 and 999
Select a Size
2.670
Choose from predefined sizes or select custom size for manual entry
Enter quantity between 1 and 999
Select a Size
4.177
Choose from predefined sizes or select custom size for manual entry
Enter quantity between 1 and 999
Select a Size
5.053
Choose from predefined sizes or select custom size for manual entry
Enter quantity between 1 and 999
Select a Size
6.517
Choose from predefined sizes or select custom size for manual entry
Enter quantity between 1 and 999
Select a Size
16.692
Choose from predefined sizes or select custom size for manual entry
Enter quantity between 1 and 999
