Ni-Cu Alloy 400 Low Pressure Corrosion Resistant Pipe Solid Solution

1. Basic Information

▶Common Names: Nickel 400, Monel 400, Nickel-Copper Alloy 400

▶Standard Grades: UNS N04400, W.Nr 2.4360, GB/T NS3301, ASTM B165/B730/B725

▶Microstructure Type: Single-phase austenitic solid solution alloy, non-magnetic or weakly magnetic

▶Core Composition: Ni ≥ 63%, Cu 28-34%, Fe ≤ 2.5%, Mn ≤ 2.0%, Si ≤ 0.5%, C ≤ 0.3%

2. Core Performance (Applicable Characteristics for Low-Pressure Pipelines)

2.1 Excellent Corrosion Resistance (Core Advantage for Low-Pressure Working Conditions)

2.2 Mechanical and Physical Properties (Compatibility for Low-Pressure Pipelines)

▶Tensile Strength: 483-655 MPa (annealed state); cold working can increase it to over 1034 MPa

▶Yield Strength: 172-276 MPa (annealed state)

▶Elongation: ≥ 40% (annealed state), ensuring flexibility during pipeline installation

▶Hardness: HB ≤ 150 (annealed state)

▶Melting Point: Approximately 1300°C, suitable for welding processing

▶Thermal Conductivity: Good, facilitating heat transfer of low-pressure fluids

▶Temperature Range: -200°C ~ 427°C (long-term use); short-term use up to 538°C (in sulfur-free oxidation environments)

3. Application Scenarios for Low-Pressure Corrosion-Resistant Pipelines

1.Marine Engineering: Low-pressure conveying pipelines in seawater desalination plants, fire-fighting systems on offshore platforms, ballast water pipelines for ships, and cooling water lines in port facilities

2.Chemical Industry: Low-pressure raw material transportation for hydrochloric acid/hydrofluoric acid production, circulation systems for alkaline solutions, auxiliary pipelines for chlorine treatment, and catalyst conveying lines

3.Oil and Gas Industry: Low-pressure water injection pipelines on offshore platforms, sulfur-containing wastewater discharge lines in oil and gas processing plants, and low-pressure hydraulic pipelines for wellhead control equipment

4.Power Industry: Low-pressure auxiliary system pipelines in nuclear power plants, seawater cooling systems in thermal power plants, and condensed water recovery pipelines

5.Food and : Pipelines for transporting alkaline cleaning solutions, low-pressure lines for chlorine-containing disinfectant water, and high-purity medium transmission systems

4. Standards and Specifications (Convenient for Procurement and Design)

Common Specifications for Low-Pressure Pipelines:

▶Pipe Diameter: DN15 ~ DN600 (1/2" ~ 24")

▶Wall Thickness: SCH10 ~ SCH40 (SCH10/20 recommended for low-pressure working conditions)

▶Connection Methods: Welding (recommended to maintain corrosion resistance), flange connection (convenient for low pressure), thread connection (small caliber, low pressure)

DINGSCO Complete Production Chain:

SMELTING → FORGING → HEAT TREATMENT → MACHINING → HOT EXTRUSION

①Foundational Assurance in Smelting and Forging:

VIM furnaces ensure alloy purity; ESR furnaces further optimize internal structure. Forging yields diverse billets, laying a defect-free foundation for downstream processing and controlling material properties at the source.

②Precision Control in Intermediate Processing:

Heat treatment is customized for alloys. CNC machining enables high-precision forming, yielding semi-finished parts to ensure pre-extrusion billets meet forming specs.

③Synergistic Value of Hot Extrusion with Full Process:

The new hot extrusion press is part of an integrated system: High-purity alloys (VIM/ESR), dense forging microstructures, and heat-treated performance collectively enable stable extrusion of hard-to-form alloys. Produced complex components: seamless pipes, profiles; material utilization up 15-20%. Full-process efficiency cuts standard model lead times to 5-10 days.

④Quality and Delivery Assurance:

Every batch comes with EN 10204 Type 3.1 certification, inspected by our internal QC team. We support third-party audits (BV, SGS, etc.), and offer custom manufacturing per drawings with sample testing available.