Features
Excellent Corrosion Resistance: 304/L stainless steel offers outstanding resistance to corrosion, suitable for various environments.
High Strength-to-Weight Ratio: Lightweight yet strong, ideal for demanding applications.
Good Ductility: The material is flexible and suitable for various processing methods such as bending, flaring, and coiling.
Dual Certification Materials: Mainly made of 304/L and 316/L stainless steel, meeting ASTM and ASME standards.
Variety of Specifications: Diameter range from 0.125 inches to 5.000 inches, wall thickness from 0.010 inches to 0.375 inches.
Strict Dimensional Tolerances: Ensures tubes meet precision manufacturing requirements.
Good Mechanical Properties: Yield strength ≥ 30 ksi, tensile strength ≥ 75 ksi, hardness ≤ 90 HRB, elongation ≥ 35%.
Good Weldability: Low sulfur content enhances welding quality.
Applications
304/L stainless steel tubes, with their excellent corrosion resistance and mechanical properties, are widely used in:
Hydraulic and instrumentation tubing systems
Chemical and oil & gas industries
Food and beverage processing equipment
Pharmaceutical and biotechnology industries
Marine and shipbuilding industries
Aerospace and automotive manufacturing
Heat exchangers and boiler systems
Architectural decoration and stainless steel structures
Product Specifications
- Standards:ASTM A269,ASTM A213/ASME SA213 (Seamless Tubes)
- Standards:ASTM A268,ASTM A249/ASME SA249(Welded Tubes)
Size Range
- Outer Diameter (OD):0.125”-5.000”
- Wall Thickness:0.010”-0.375”
Chemical Requirements (Composition %)
| Element | UNS S30400 (304) | UNS S30403 (304L) |
| Carbon (C) | ≤ 0.080% | ≤ 0.030% |
| Mn (Mn) | ≤ 2.00% | ≤ 2.00% |
| P (P) | ≤ 0.045% | ≤ 0.045% |
| S (S) | ≤ 0.030% | ≤ 0.030% |
| Si (Si) | ≤ 1.00% | ≤ 1.00% |
| Cr (Cr) | 18.00 – 20.00% | 18.00 – 20.00% |
| Ni (Ni) | 8.00 – 11.00% | 8.00 – 12.00% |
Dimensional Tolerances
| Outer Diameter (OD) | OD Tolerance | Wall Thickness Tolerance |
| ≤ 0.500″ | ±0.005″ | ±10% |
| 0.500″ – 1.500″ | ±0.005″ | ±10% |
| 1.500″ – 3.500″ | ±0.010″ | ±10% |
| 3.500″ – 5.500″ | ±0.008″ | ±10% |