When durability meets precision, Alloy 400 Pipe stands out as a top choice for industries requiring unmatched corrosion resistance and structural reliability. This nickel-copper alloy, compliant with ASTM B165 and ASME SB165 standards, excels in harsh environments like aerospace systems, marine engineering, and chemical processing. At tsmnialloy.com, we combine advanced manufacturing with rigorous quality protocols to deliver products that outperform alternatives. Let’s explore why this material is trusted globally and how our expertise ensures your project’s success.

|
Specification |
Details |
|---|---|
| Material Composition |
67% Nickel, 23% Copper, plus trace iron and manganese |
| Key Properties |
Corrosion rate <0.025 mm/year in seawater |
|
Operating temperatures: -240°C to 480°C (long-term), up to 800°C (short-term) |
|
|
Chloride stress corrosion cracking resistance |
|
| Sizes |
OD 6.0 – 324 mm, Wall Thickness 0.5 – 30 mm, Lengths up to 12,000 mm |
| Standards |
ASTM B165 (seamless), ASTM B725 (welded), EN 10095 |
| Surface Treatments |
Sandblasting, anodizing, or custom finishes |
1. Aerospace-Grade Precision Manufacturing
With a 50,000㎡ square foot facility and 100+ CNC machines, we achieve ±0.05mm dimensional accuracy—critical for aircraft fuel lines and exhaust components. Our AS9100D-certified production lines ensure 99.98% on-time delivery, while smart factory systems detect defects as small as 0.02mm.
2. Zero-Compromise Quality Assurance
Every Alloy 400 pipe undergoes:
Certifications include ISO 9001, AS9120D, and ITAR compliance for defense projects.
3. Global Supply Chain Leadership
4. Cost-Efficiency Without Sacrifice
Vertical integration reduces costs by 15–20% versus EU competitors. Our AI-driven processes minimize scrap rates to 2.5%, passing savings to you.

Applications Where Alloy 400 Pipe Shines
Marine Engineering
Resist saltwater corrosion in shipbuilding and offshore platform piping.
Aerospace Systems
Ideal for hydraulic lines, engine components, and exhaust assemblies requiring fatigue resistance.
Chemical Processing
Handle hydrofluoric acid and sulfuric acid recovery units safely.
Desalination Plants
Evaporator tubes for converting seawater to freshwater.
| Feature | Alloy 400 Pipe | Stainless Steel 316 | Monel K500 |
|---|---|---|---|
| Chloride Resistance | Excellent | Moderate | Excellent |
| Cost-Effectiveness | High | Low | Moderate |
| Tensile Strength | 550 MPa | 515 MPa | 1035 MPa |
| Best For | General corrosion | Mild environments | High-strength needs |

Q: Can the products handle sulfuric acid exposure?
A: While excellent for hydrofluoric acid and seawater, sulfuric acid resistance is limited. Contact us for application-specific guidance.
Q: What’s the lead time for a 20-ton order?
A: 4–6 weeks standard, with expedited options available.
Q: Are your pipes compliant with aerospace standards?
A: Yes—we’re AS9100D-certified and pre-qualified by Safran and Spirit AeroSystems.
Q: Do you provide heat-treated pipes?
A: Yes! Solution annealing at 870°C enhances stress resistance.
Custom Quote: Email info@tsmnialloy.com with your specs.
Trust tsmnialloy.com for Alloy 400 pipe that combines innovation, reliability, and value. Let's engineer your success!
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