904L Stainless Steel Seamless Pipe
Grade: 904L/UNS N08904
Size:
Seamless: 6mm*1mm-720mm*50mm
Coiled: 4mm*0.5mm-32mm*3mm
Standard: ASTM A312, ASTM A213 etc.
Surface: No.1(Pickling), Bright(Polished)
- Fast Shipping / Ready Stock
- ISO 9001 Direct Factory
- Custom Cutting & Processing
- 100% MTC & SGS Inspection Supported
904L Stainless Steel Pipe is a high-alloy super austenitic stainless steel with elevated nickel, chromium, molybdenum, and copper contents. It offers excellent resistance to sulfuric acid, chloride-containing media, pitting, crevice corrosion, and stress corrosion cracking. 904L pipe is commonly used in chemical processing, acid-handling systems, pollution control, pharmaceutical equipment, seawater service, and demanding industrial process piping applications.
Chemical Composition
| Element | Content (wt. %) |
| C | ≤0.020 |
| Si | ≤1.00 |
| Mn | ≤2.00 |
| P | ≤0.045 |
| S | ≤0.035 |
| Cr | 19.0–23.0 |
| Ni | 23.0–28.0 |
| Mo | 4.0–5.0 |
| N | ≤0.10 |
| Other | Cu: 1.0–2.0; Fe: Balance |
Mechanical Properties
| Condition | Tensile Strength | Yield Strength (0.2%) | Elongation | Hardness |
| Solution annealed | ≥490 | ≥220 | ≥35 | ≤215 HB / ≤95 HRB |
- Sulfuric acid equipment
- Chemical processing
- Pollution-control systems
- Pharmaceutical plants
- Seawater equipment
- Acid-handling piping


904L Stainless Steel Pipe is a high-alloy super austenitic stainless steel with elevated nickel, chromium, molybdenum, and copper contents. It offers excellent resistance to sulfuric acid, chloride-containing media, pitting, crevice corrosion, and stress corrosion cracking. 904L pipe is commonly used in chemical processing, acid-handling systems, pollution control, pharmaceutical equipment, seawater service, and demanding industrial process piping applications.
Chemical Composition
| Element | Content (wt. %) |
| C | ≤0.020 |
| Si | ≤1.00 |
| Mn | ≤2.00 |
| P | ≤0.045 |
| S | ≤0.035 |
| Cr | 19.0–23.0 |
| Ni | 23.0–28.0 |
| Mo | 4.0–5.0 |
| N | ≤0.10 |
| Other | Cu: 1.0–2.0; Fe: Balance |
Mechanical Properties
| Condition | Tensile Strength | Yield Strength (0.2%) | Elongation | Hardness |
| Solution annealed | ≥490 | ≥220 | ≥35 | ≤215 HB / ≤95 HRB |
- Sulfuric acid equipment
- Chemical processing
- Pollution-control systems
- Pharmaceutical plants
- Seawater equipment
- Acid-handling piping






