INCONEL
304 Stainless Steel Wire
Premium corrosion-resistant austenitic stainless steel wire for precision applications
High-quality 304 stainless steel wire offering excellent corrosion resistance, weldability, and formability. Ideal for manufacturing, fasteners, springs, and general-purpose industrial applications requiring superior durability and aesthetic appeal.
Quick Specifications
- Material Designation
- ASTM A 313 / UNS S30400
- Werkstoff Number
- 1.4301
- Form
- Wire
- Tensile Strength
- 515 - 860 MPa
- Yield Strength (0.2% Offset)
- 205 MPa minimum
- Elongation
- 40% minimum (in 50mm)
Standards & Certifications
Product Description
304 stainless steel wire is an austenitic chromium-nickel steel that provides exceptional corrosion resistance across a wide range of environments. The balanced chromium and nickel content delivers outstanding resistance to oxidation and pitting, making it suitable for both atmospheric and mildly corrosive chemical environments. This versatile alloy maintains its mechanical properties across a broad temperature range, from cryogenic to elevated temperature applications.
The wire form offers excellent weldability and formability characteristics, allowing for easy fabrication into complex components without requiring post-weld heat treatment. The austenitic crystal structure ensures superior toughness and ductility, even at sub-zero temperatures, making it ideal for demanding applications in food processing, pharmaceuticals, and chemical industries where reliability and hygiene standards are critical.
Our 304 stainless steel wire is produced to strict tolerances and is available in various diameters and finishes to meet specific application requirements. The material undergoes rigorous quality control testing to ensure consistent mechanical properties and surface finish. Whether bright annealed or pickled and oiled, each product is engineered to deliver premium performance and long service life.
With superior machinability and excellent surface finish retention, 304 stainless steel wire minimizes processing costs while delivering aesthetically pleasing final products. The material's resistance to stress corrosion cracking in neutral and alkaline environments, combined with its non-magnetic properties in the annealed condition, makes it the preferred choice for precision manufacturers worldwide.
Specifications
| Material Designation | ASTM A 313 / UNS S30400 |
| Werkstoff Number | 1.4301 |
| Form | Wire |
| Tensile Strength | 515 - 860 MPa |
| Yield Strength (0.2% Offset) | 205 MPa minimum |
| Elongation | 40% minimum (in 50mm) |
| Density | 8.0 g/cm³ |
| Melting Point | 1399 - 1418°C |
| Thermal Conductivity | 16.3 W/m·K at 100°C |
| Electrical Resistivity | 720 nΩ·m at 20°C |
| Modulus of Elasticity | 193 GPa |
| Hardness (Annealed) | 95 HRB maximum |
Chemical Composition
| Element | Content (%) |
|---|---|
| Carbon | ≤ 0.08 |
| Chromium | 18.0 - 20.0 |
| Nickel | 8.0 - 12.0 |
| Manganese | ≤ 2.0 |
| Silicon | ≤ 1.0 |
| Phosphorus | ≤ 0.045 |
| Sulfur | ≤ 0.030 |
| Iron | Balance |
Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength (Annealed) | 515 - 620 MPa |
| Tensile Strength (Cold Rolled 1/2 Hard) | 620 - 860 MPa |
| Yield Strength (Annealed) | 205 MPa minimum |
| Elongation (Annealed) | 40% minimum |
| Elongation (1/2 Hard) | 15% minimum |
| Hardness (Annealed Rockwell) | 95 HRB maximum |
| Hardness (1/2 Hard Rockwell) | B 75 - B 85 |
| Impact Strength (Charpy V-notch) | ≥ 80 J at room temperature |
Key Features & Advantages
Applications
Food and Beverage Processing
Manufacturing of food handling equipment, brewing vessels, and beverage processing machinery where hygiene, corrosion resistance, and ease of cleaning are essential requirements.
Chemical Processing Equipment
Construction of piping, valves, and vessels for handling non-oxidizing acids, alkaline solutions, and various chemical compounds in industrial processing plants.
Fasteners and Springs
Production of screws, bolts, springs, and clips where excellent mechanical properties, corrosion resistance, and fatigue performance are critical to long-term reliability.
Medical and Pharmaceutical Applications
Manufacturing of surgical instruments, pharmaceutical equipment, and medical device components requiring biocompatibility and resistance to sterilization processes.
Automotive and Marine Components
Production of exhaust systems, trim components, and marine hardware where superior corrosion resistance and aesthetic appeal extend service life.
Textile and Paper Industry
Fabrication of machinery components, screens, and wear parts in textile mills and paper manufacturing plants requiring corrosion resistance and durability.
Frequently Asked Questions
What makes 304 stainless steel wire suitable for food processing equipment?
Can 304 stainless steel wire be welded without post-weld heat treatment?
What is the difference between annealed and cold-rolled 304 wire?
Is 304 stainless steel wire magnetic?
What temperature range can 304 stainless steel wire operate safely?
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