304L ss pipe is one of the most demanded austenitic stainless steel piping materials used across industrial, structural, and sanitary applications. With its low carbon content, excellent corrosion resistance, and superior weldability, it is widely specified in international engineering projects.
GengFei Steel supplies premium-grade 304L stainless steel pipes to global markets, covering seamless and welded types with full certification and export support.
What Is 304L Stainless Steel Pipe?
304L stainless steel pipe is the low-carbon version of 304 stainless steel pipe. The reduced carbon content (≤ 0.03%) prevents carbide precipitation during welding, ensuring higher resistance to intergranular corrosion.
Chemical Composition of 304L Stainless Steel Pipe
| Element | Content (%) |
|---|---|
| Chromium (Cr) | 18.0 – 20.0 |
| Nickel (Ni) | 8.0 – 12.0 |
| Carbon (C) | ≤ 0.03 |
| Manganese (Mn) | ≤ 2.0 |
| Silicon (Si) | ≤ 1.0 |
| Phosphorus (P) | ≤ 0.045 |
| Sulfur (S) | ≤ 0.03 |
This balanced composition provides strong corrosion resistance while maintaining good formability.
Key Features of 304L Stainless Steel Pipe
Excellent Corrosion Resistance
Performs well in oxidizing acids, moisture, and chemical environments.
Superior Weldability
Low carbon content prevents weld decay and intergranular corrosion.
High Strength & Durability
Maintains performance under pressure and temperature variations.
Ideal for sanitary and food-grade applications.
Product Types We Supply
Seamless 304L stainless steel pipe
Welded 304L stainless steel pipe
Polished stainless steel pipe
Pickled & annealed pipe
Custom cut lengths
Size Range & Specifications
Standard Supply Range
| Parameter | Range |
|---|---|
| Outer Diameter | 6 mm – 630 mm |
| Wall Thickness | 0.5 mm – 40 mm |
| Length | 6 m / 12 m / Custom |
| Production Method | Seamless / Welded |
| Surface Finish | Pickled / Polished / Annealed |
International Standards
ASTM A312 TP304L
ASTM A213 TP304L
EN 10216-5 1.4307
JIS SUS304L
Mill Test Certificates (MTC) and third-party inspection reports are available.
Applications of 304L Stainless Steel Pipe
304L stainless steel pipe is widely used in:
Chemical processing pipelines
Oil & gas transportation
Food and dairy processing
Pharmaceutical production lines
Water treatment systems
Heat exchangers
Architectural structures
304 vs 304L Stainless Steel Pipe – Comparison
| Property | 304 Stainless Steel Pipe | 304L Stainless Steel Pipe |
|---|---|---|
| Carbon Content | ≤ 0.08% | ≤ 0.03% |
| Weldability | Good | Excellent |
| Intergranular Corrosion | Moderate Risk | Very Low Risk |
| Post-Weld Heat Treatment | Sometimes Required | Usually Not Required |
| Typical Use | General Applications | Welded Structures |
Why Choose GengFei Steel?
Global export experience
Strict quality inspection
Custom production capability
Competitive factory pricing
Fast delivery worldwide
We supply stainless steel pipes to Europe, Middle East, Southeast Asia, South America, and Africa.
Packaging & Delivery
Seaworthy wooden cases
Steel strip bundling
Plastic end caps
Waterproof wrapping
Delivery terms: FOB / CFR / CIF available.
Request a Quote for 304L Stainless Steel Pipe
Looking for a reliable supplier of 304L stainless steel pipe?
GengFei Steel is ready to provide high-quality materials and professional export service.
