904l stainless steel pipe
- 904l stainless steel pipe
Why 904L? 3 Second Summary
Best-in-class: corrosion resistance (5x better than 316 in acids)
Lower lifetime cost: despite the higher initial 904L stainless steel price
3-5 day shipping: on standard sizes904L Stainless Steel Pipe: The Ultimate Corrosion-Resistant Solution for Extreme Environments
When corrosion resistance matters most, 904L stainless steel pipe stands as the premium choice for engineers dealing with:
Concentrated sulfuric and phosphoric acids
Seawater and chloride-rich environments
Sour gas and oilfield applications
904l stainless steel pipe Product Description
| Material: | 904l stainless steel pipe | Shape: | Seamless pipe, welded pipe |
| Color： | Polishing,annealing,pickling, bright | Standard: | ASTM A312、ASTM A213、ASTM A269 |
| MOQ： | 1 ton, We can accept a sample order. | Round pipe/tube size | wall thickness:1mm-150mm(SCH10-XXS);Outer diameter:6mm-2500mm (3/8″-100″) |
| Delivery status: | Solution Annealed；Cold Rolled | pipe/tube | sWall thickness:1mm-150mm(SCH10-XXS);Outer diameter:6mm-2500mm (3/8″-100″) |
| Certification: | ISO, SGS，BV | Type | Round pipe, Square pipe, Rectangular pipe |
Physical Properties of Stainless Steel
The secret to 904L’s performance lies in its high nickel-molybdenum-copper combo – see exactly how it compares to standard alloys:
| Element | Nickel | Chromium | Molybdenum | Copper |
| % Content | 23-28% | 19-23% | 4-5% | 1-2% |
| Key Benefit | Superior acid resistance | Base corrosion protection | Chloride/sulfide resistance | Enhanced sulfuric acid resistance |
“Our 904L pipes are independently tested per ASTM G48 Method A”
Key Standards:
ASTM A312 / A790 (Pipe & Tubing)
NACE MR0175 compliant for sour service
Pitting Resistance Equivalent Number (PREN) >35
904l stainless steel pipe has excellent mechanical properties：
| Property | 904L Pipe | 316 Pipe | 304 Pipe |
| Density (g/cm³) | 8 | 8 | 8 |
| Melting Range (°C) | 1300-1390 | 1375-1400 | 1400-1450 |
| Thermal Expansion Coefficient | 15.9 | 16 | 17.3 |
| Thermal Conductivity | 12.5 (W/(m·K)) | 16.3 (W/(m·K)) | 16.2 (W/(m·K)) |
| Electrical Resistivity | 0.85(μΩ·m) | 0.74(μΩ·m) | 0.72(μΩ·m) |
| Magnetic Properties | Non-magnetic | Non-magnetic | Non-magnetic |
Physical properties of 904l stainless steel pipe ：
| Property | 904L Stainless Steel Pipe (Annealed) | 316 Stainless Steel Pipe (Annealed) | 304 Stainless Steel Pipe (Annealed) |
| Tensile Strength (MPa) | 490-690 | 515-690 | 515-720 |
| Yield Strength (MPa) | ≥220 | ≥205 | ≥205 |
| Elongation (%) | ≥35 | ≥40 | ≥40 |
| Hardness (HB) | ≤220 | ≤217 | ≤201 |
| Impact Toughness (J, RT) | ≥100 | ≥100 | ≥100 |
| High-Temperature Strength (400°C, MPa) | Maintains well | Significant decrease | Significant decrease |
904L Stainless Steel Tubing Product packaging and loading
For 904L Stainless Steel Tubing packaging: Standard packing for export with waterproof protection.
Other packaging can be customized according to customer requirements.
Port:Shanghai port or Qingdao port
Quantity (Tons) | 1-5 | 6-20 | 21-100 | >100 |
Est.Time (days) | 3 | 15 | 30 | To be negotiated |
“Now, let’s get down to the numbers you really care about…”
Available thicknesses of 904l stainless steel pipes:
1. Size range
Outer diameter: 6mm-630mm
Wall thickness: 0.5mm-30mm
Length: 1m-12m (customizable)
2. Implementation standards
International standards: ASTM A312, ASTM A790
European standards: EN 10216-5
Domestic standards: GB/T 14976
3. Surface treatment
Pickling surface
Mechanical polishing (up to Ra0.4μm)
Sandblasting
Electrolytic polishing
Corrosion resistance of 904l stainless steel pipe
1. Super corrosion resistance
Excellent acid resistance: can resist corrosion from a variety of strong acids such as sulfuric acid, phosphoric acid, acetic acid, etc.
Resistant to chloride stress corrosion cracking: especially suitable for high-chlorine environments such as seawater and salt spray
Resistant to pitting and crevice corrosion: high molybdenum content (4-5%) provides excellent protection
2. Excellent mechanical properties
High strength: tensile strength can reach 490a 690MPa
Good toughness: maintains excellent impact toughness even in low temperature environments
High temperature stability: can work stably in the temperature range of -196°C to 400°C
Industrial Applications of 904L Stainless Steel Tubing
Where Our Customers Use 904L Pipes?
Real-World Success Stories
Case 1: Sulfuric Acid Plant Piping Upgrade Problem*: 316L pipes corroded in 6 months at 50°C, 20% H₂SO₄
Solution: 904L pipes lasted 5+ years with <0.1mm/year corrosion rate
Cost Saved: $420,000 in replacement downtime
STAINLESS pipe
Why Engineers Choose Us for 904L Stainless Steel Pipe Suppliers
Air Shipping Available: Get emergency stock in 72h globally
Batch Traceability: Laser-etched heat numbers on every pipe
Application Engineering: Free technical review of your drawings
Why Choose Us Over Other Suppliers?
Mill-direct partnerships reduce costs by 12-18%
Inventory includes rare sizes and forms (tube, fittings, flanges)
Full NACE compliance documentation provided
Stainless steel
FAQ
Yes - we guarantee to match any valid competitor quote and provide 2% extra discount if we can't.
While duplex steels offer higher strength, 904L provides better corrosion resistance in reducing acids like sulfuric.
Yes - we stock European metric sizes (DN15 to DN600) with EN 1.4539 certification.
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Contact us for a stainless steel quote
If you have any questions, please use the form below to send us a message or contact Walmay Metal’s office location.
