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904L Stainless Steel Bar
Product Overview
904L stainless steel bar is a super austenitic stainless steel, renowned for its excellent corrosion resistance, especially in acidic environments. 🌊 It has high levels of nickel, molybdenum, and copper, which give it superior resistance to pitting, crevice corrosion, and stress corrosion cracking. Ideal for use in highly corrosive environments such as chemical processing, marine, and oil & gas industries, 904L provides exceptional durability and strength, even in aggressive media like sulfuric acid, phosphoric acid, and seawater.
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
Chemical Composition
| Element | Content (%) |
|---|---|
| C | ≤ 0.02 |
| Si | ≤ 1.00 |
| Mn | ≤ 2.00 |
| P | ≤ 0.045 |
| S | ≤ 0.035 |
| Cr | 19.0 – 23.0 |
| Ni | 24.0 – 26.0 |
| Mo | 4.0 – 5.0 |
| Cu | 1.0 – 2.0 |
Mechanical Properties
| Property | Value (Annealed) |
|---|---|
| Tensile Strength | ≥ 520 MPa |
| Yield Strength | ≥ 220 MPa |
| Elongation (%) | ≥ 40% |
| Hardness (HB) | ≤ 220 |
Features & Advantages
- ✅ Exceptional corrosion resistance in sulfuric acid, phosphoric acid, and seawater
- 🌊 Excellent resistance to pitting, crevice, and stress corrosion cracking
- ⚙️ High strength, making it suitable for both structural and mechanical applications
- 🛠️ Suitable for welding without post-weld heat treatment
- 🌟 Ideal for industries that require resistance to harsh environments and corrosive chemicals
Applications
- ⚗️ Chemical processing and reactor systems
- 🚢 Marine environments and seawater systems
- 💧 Water treatment plants and desalination systems
- 🛢️ Oil and gas pipeline components
- 🏭 Pharmaceutical manufacturing equipment
Surface Finish
- 🖤 Black
- 🧼 Pickled
- ✨ Bright
- 🔧 Polished (180#, 240#, 320#)
- 🌀 Peeled / Turned / Ground
Processing Services
- ✂️ Length cutting to custom specifications
- 🧽 Surface grinding and polishing
- 🔩 CNC machining and threading
- 📏 Precision tolerance control
- 📦 Custom packaging for bulk shipments
