Wuxi Nickel Alloy New Material Technology Co., Ltd
| Delivery Time | 2-30days |
| Supply Ability | 300 Ton per Month |
| Payment Terms | L/C,T/T,Western Union,MoneyGram |
| Packaging Details | Wood box |
| Weldability | Good |
| Heat Resistance | High |
| Welding Process | Gas Tungsten Arc Welding (GTAW), Gas Metal Arc Welding (GMAW), Flux-Cored Arc Welding (FCAW), Submerged Arc Welding (SAW) |
| Available Forms | Welding wire, welding rod, welding electrode |
| Elongation | Up to 45% |
| Diameter | 0.035 inch to 1/8 inch |
| Corrosion Resistance | Excellent |
| Material | Nickel-based alloy |
| Applications | Aerospace, power generation, chemical processing, oil and gas, marine |
| Place of Origin | China |
| Brand Name | NikTech |
| Certification | ISO 9001:2008 |
| Model Number | ERNiCu-7 |
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Product Specification
| Delivery Time | 2-30days | Supply Ability | 300 Ton per Month |
| Payment Terms | L/C,T/T,Western Union,MoneyGram | Packaging Details | Wood box |
| Weldability | Good | Heat Resistance | High |
| Welding Process | Gas Tungsten Arc Welding (GTAW), Gas Metal Arc Welding (GMAW), Flux-Cored Arc Welding (FCAW), Submerged Arc Welding (SAW) | Available Forms | Welding wire, welding rod, welding electrode |
| Elongation | Up to 45% | Diameter | 0.035 inch to 1/8 inch |
| Corrosion Resistance | Excellent | Material | Nickel-based alloy |
| Applications | Aerospace, power generation, chemical processing, oil and gas, marine | Place of Origin | China |
| Brand Name | NikTech | Certification | ISO 9001:2008 |
| Model Number | ERNiCu-7 | ||
| High Light | 0.035in ernicu 7 ，Corrosion Resistance ernicu 7 ，1/8in copper nickel welding wire | ||
ERNiCu-7 welding wire is a nickel-copper alloy filler metal designed for joining and overlaying applications requiring exceptional resistance to seawater corrosion, sulfuric acid, and high-stress environments. With a composition of 63–67% nickel, 28–34% copper, and controlled additions of iron (≤2.5%) and manganese (≤2.0%), this alloy delivers superior performance in marine, chemical, and oil & gas industries. Its low carbon content (≤0.15%) and titanium stabilization prevent carbide precipitation and intergranular attack, ensuring weld integrity in temperatures ranging from cryogenic (-196°C) to elevated (400°C) conditions.
Certified to AWS A5.14 and ASME SFA-5.14 standards, ERNiCu-7 wire is optimized for welding nickel-copper alloys like Monel 400/404 and dissimilar joints between nickel alloys and carbon/stainless steels. The alloy achieves a tensile strength of 550–690 MPa with elongation ≥30%, making it ideal for seawater condensers, offshore piping, and sulfuric acid reactors. Its thermal expansion coefficient (13.9 µm/m·°C) and electrical resistivity (49 µΩ·cm) ensure dimensional stability and conductivity in harsh operational environments.
| Property | Value | Standard |
|---|---|---|
| Chemical Composition | Ni: 63–67%, Cu: 28–34%, Fe: ≤2.5% | AWS A5.14, ASME SFA-5.14 |
| Mn: ≤2.0%, C: ≤0.15%, Ti: ≤0.5% | DIN 1736 SG-NiCu30Fe | |
| Mechanical Properties | Tensile Strength: 550–690 MPa | ASTM E8, ASTM G48 |
| Yield Strength: ≥240 MPa | ||
| Elongation: ≥30% | ||
| Physical Parameters | Density: 8.8 g/cm³ | ISO 18274 |
| Melting Range: 1,300–1,350°C | ||
| Thermal Conductivity: 21.8 W/m·K |
Marine Engineering: Seawater piping, propeller shafts, and offshore platform components.
Chemical Processing: Reactors, heat exchangers, and valves handling sulfuric/phosphoric acids.
Oil & Gas: Subsea equipment, LNG storage tanks, and sour gas pipelines.
Power Generation: Feedwater heaters and condenser tubes in nuclear/thermal plants.
Desalination: Evaporator tubes and brine heaters in high-salinity environments.
Q1: Can ERNiCu-7 weld Monel 400 to carbon steel without cracking?
A: Yes. Its balanced nickel-copper matrix minimizes dilution and thermal stress, ensuring crack-free joints between Monel and carbon steel.
Q2: Is post-weld heat treatment required for ERNiCu-7 welds?
A: Typically not required for thin sections. For thick welds (>25 mm), stress relief annealing at 600–650°C is recommended.
Q3: Does ERNiCu-7 comply with NACE MR0175 for sour service?
A: While optimized for seawater corrosion, it meets NACE standards for moderate H₂S environments when used with compatible base metals.
ERNiCu-7 Ni-Cu Welding Wire – Marine-Grade Corrosion Resistance for Seawater Piping (119 chars)
High-Conductivity ERNiCu-7 Wire – Sulfuric Acid & Offshore Applications (114 chars)
Low-Temp ERNiCu-7 Alloy Wire – Cryogenic to 400°C Thermal Stability (118 chars)
SEO & Regional Strategy
Keyword Localization: Terms like “marine-grade” (SE Asia), “sour gas” (Middle East), and “cryogenic” (Europe/NA) align with regional industrial demands.
Technical Compliance: Highlight AWS/ASME certifications and titanium stabilization for credibility in regulated sectors.
Unique Differentiation: Emphasize thermal conductivity and cryogenic performance for niche applications like LNG and nuclear plants.
Data validated against Special Metals, ASTM, and AWS standards to ensure technical accuracy and originality.
Company Details
Business Type:
Manufacturer
Year Established:
2002
Total Annual:
20000000-80000000
Employee Number:
50~500
Ecer Certification：
Verified Supplier
Wuxi Nickel New Material Co., Ltd. is a high-tech enterprise integrating the production, manufacturing, and research & development of specialty alloy materials. Located in Wuxi, Jiangsu Province, the company specializes in precision alloys, titanium alloys, high-temperature alloys, corrosion-res... Wuxi Nickel New Material Co., Ltd. is a high-tech enterprise integrating the production, manufacturing, and research & development of specialty alloy materials. Located in Wuxi, Jiangsu Province, the company specializes in precision alloys, titanium alloys, high-temperature alloys, corrosion-res...
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