Steel Strip Profiles
304L Stainless Steel Strip
304L stainless steel strip is a low-carbon, weld-friendly version of 304, offering excellent corrosion resistance and long-term durability in welded components.
Product Introduction
304L stainless steel strip is a low-carbon version of the 304 grade, specifically designed for improved weldability and reduced carbide precipitation during welding. It maintains the corrosion resistance and formability of 304 while offering enhanced resistance to intergranular corrosion in heat-affected zones. Commonly used in chemical tanks, welded structures, pipelines, and pharmaceutical equipment, 304L is an excellent choice for applications requiring clean welds and long-term reliability.
Product Specifications
- Grade: 304L / UNS S30403
- Thickness: 0.01mm – 5.0mm
- Width: 10mm – 700mm
- Length: Custom as per requirement
- Surface Finish: 2B, BA, No.4, HL, Mirror
- Edge Type: Slit / Mill Edge
- Process: Cold Rolled / Hot Rolled
- Standard: ASTM A240, JIS G4304, EN 10088-2
Key Features
- Low carbon content (<0.03%) improves weldability
- Excellent corrosion resistance, especially in welded areas
- Non-magnetic in annealed condition
- Good drawability and deep forming characteristics
- Ideal for high-purity and high-temperature environments
Standards & Certifications
- Standards: ASTM A240, JIS G4304, EN 10088
- Certifications: ISO 9001, Mill Test Certificate (MTC), SGS / BV / TÜV on request
Chemical Composition
| Element | Content (%) |
|---|---|
| Carbon (C) | ≤ 0.03 |
| Chromium (Cr) | 18.0 – 20.0 |
| Nickel (Ni) | 8.0 – 12.0 |
| Manganese (Mn) | ≤ 2.0 |
| Silicon (Si) | ≤ 1.0 |
| Phosphorus (P) | ≤ 0.045 |
| Sulfur (S) | ≤ 0.03 |
Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength | ≥ 485 MPa |
| Yield Strength | ≥ 170 MPa |
| Elongation | ≥ 40% |
| Hardness | ≤ 90 HRB |
Physical Properties
- Density: 7.93 g/cm³
- Thermal Conductivity: 16.2 W/m·K
- Modulus of Elasticity: 193 GPa
- Melting Range: 1400–1450°C
Equivalent Grades
| Standard | Equivalent |
|---|---|
| UNS | S30403 |
| EN | 1.4306 / 1.4307 |
| JIS | SUS 304L |
Applications
- Welded pipelines and pressure vessels
- Chemical tanks and food processing equipment
- Pharmaceutical and sanitary environments
- Heat exchangers and condensers
- High-temperature structural parts
Processing Services
- Coil slitting, flattening, edge trimming
- Custom length cutting and surface polishing
- Protective film application and export packaging
- Custom label printing with QR/barcode support
Packaging & Delivery
304L stainless steel strips are packed using waterproof paper, plastic film, and steel straps. All coils are secured on strong wooden pallets or in wooden crates. Export markings and custom barcoding available on request.
Frequently Asked Questions (FAQ)
Q: What is the benefit of using 304L instead of 304?
A: 304L contains lower carbon, reducing the risk of intergranular corrosion in welded structures.
Q: Is 304L safe for food-contact applications?
A: Yes, it is commonly used in food-grade tanks, piping, and processing equipment.
Q: Can 304L be mirror polished?
A: Yes, we offer mirror finish and other custom surface treatments upon request.
Q: Do you support third-party inspection?
A: Yes, we welcome SGS, BV, or customer-appointed inspection agencies.
