304L Stainless Steel Bar

1. Product Overview

304L stainless steel bar is a low-carbon version of the standard 304 stainless steel, offering improved resistance to intergranular corrosion after welding. 🔧 It maintains the excellent corrosion resistance, high strength, and good machinability of 304, with enhanced weldability and suitability for high-temperature environments. This material is ideal for use in applications where welding is required and corrosion resistance is a priority, such as chemical processing, food equipment, and industrial machinery.

2. Available Sizes

• 📏 Type: Round bar, Square bar, Flat bar, Hexagonal bar
• 📐 Diameter (Round): 6mm – 250mm
• 📏 Length: 1000mm – 6000mm or customized
• 🎯 Tolerances: h9, h10, h11 (available upon request)
• 📚 Standards: ASTM A276, ASTM A479, EN 10088-3, JIS G4303

3. Chemical Composition

Element	Content (%)
C	≤ 0.03
Si	≤ 1.00
Mn	≤ 2.00
P	≤ 0.045
S	≤ 0.030
Cr	18.0 – 20.0
Ni	8.0 – 12.0

4. Mechanical Properties

Property	Value (Annealed)
Tensile Strength	≥ 485 MPa
Yield Strength	≥ 170 MPa
Elongation (%)	≥ 40%
Hardness (HB)	≤ 201

5. Features & Advantages

• ✅ Excellent corrosion resistance in acidic environments
• 🔥 Superior weldability with no post-weld heat treatment required
• ⚙️ High strength and good resistance to oxidation
• 🛠️ Ideal for chemical and food processing industries
• 🌟 Low carbon content reduces the risk of carbide precipitation

6. Applications

7. Surface Finish

• 🖤 Black
• 🧼 Pickled
• ✨ Bright
• 🔧 Polished (180#, 240#, 320#)
• 🌀 Peeled / Turned / Ground

8. Processing Services

• ✂️ Length cutting to custom specifications
• 🧽 Surface grinding and polishing
• 🔩 Machining and threading
• 📏 Precision tolerance control
• 📦 Custom packaging for bulk shipments