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Zinc Nickel Xylan 1070 Stud Nut
QS Fastener: Zinc Nickel Xylan 1070 Stud Nut
Name: Zinc Nickel Xylan 1070 Stud Nut
Surface Treatment: Zinc Nickel + Xylan 1070 Blue, Double Coating
Standard: API 20E BSL-3
Origin: China Mill
Material: Alloy ASTM A193 B7 Stud, With Two Heavy Hex Nuts ASTM A194 2H
Applications: For Onshore and Offshore Oil and Gas Facilities Including Subsea Applications.
Surface Treatment: Zinc Nickel + Xylan 1070 Blue, Double Coating
Standard: API 20E BSL-3
Origin: China Mill
Material: Alloy ASTM A193 B7 Stud, With Two Heavy Hex Nuts ASTM A194 2H
Applications: For Onshore and Offshore Oil and Gas Facilities Including Subsea Applications.
Quantity
Zinc Nickel Xylan 1070 Stud Nut – High-Performance Fastener for Extreme Oil & Gas Environments
Zinc Nickel Xylan 1070 Stud Nut is specifically designed for extreme oil and gas environments. It combines ASTM A193 B7 alloy steel studs with ASTM A194 Grade 2H heavy hex nuts, featuring dual corrosion protection through a zinc-nickel base layer and Xylan 1070 blue coating, achieving over 2000 hours of salt spray resistance. This makes it ideal for deep-sea high-pressure conditions, acidic corrosion, and chemical erosion. Zinc Nickel Xylan 1070 Stud Nut fully complies with API 20E BSL-3 standards and is suitable for onshore/offshore oil & gas facilities and subsea pipelines, particularly in high-salinity and H₂S environments. It offers ultra-high strength (HRC 22-32) and anti-loosening performance, with cost-effective manufacturing in China.
Core Material Properties
1. Zinc-Nickel Alloy Layer (Zn-Ni 12-16%)
- Zinc Nickel Xylan 1070 Stud Nut maintains a strictly controlled nickel content of 12–16%, forming a stable γ-phase crystalline structure with a corrosion potential of -0.75V (vs. SCE).
1. Zinc-Nickel Alloy Layer (Zn-Ni 12-16%)
- Zinc Nickel Xylan 1070 Stud Nut maintains a strictly controlled nickel content of 12–16%, forming a stable γ-phase crystalline structure with a corrosion potential of -0.75V (vs. SCE).
- Neutral salt spray testing (ASTM B117) shows no red rust after 500 hours, far exceeding ISO 4042 requirements.
- Microhardness reaches 250–320 HV, ~60% higher than traditional zinc plating.
2. Xylan 1070 Blue Coating
- Zinc Nickel Xylan 1070 Stud Nut utilizes Xylan 1070 coating, a modified polyamide-imide resin system with fluorocarbon additives.
- Zinc Nickel Xylan 1070 Stud Nut utilizes Xylan 1070 coating, a modified polyamide-imide resin system with fluorocarbon additives.
- Coating thickness: 50–80μm (adjustable for working conditions), achieving ISO 10683 adhesion Grade 0.
- Chemical resistance tests confirm no blistering after 240 hours in 10% HCl (25°C) and intact coating after 500 hours in 5% NaOH.
Composite Protection Mechanism
Zinc Nickel Xylan 1070 Stud Nut employs a unique"electrochemical + physical barrier"dual-protection design:
- The zinc-nickel base layer provides active cathodic protection with a sacrificial anode radius of 3mm.
Zinc Nickel Xylan 1070 Stud Nut employs a unique"electrochemical + physical barrier"dual-protection design:
- The zinc-nickel base layer provides active cathodic protection with a sacrificial anode radius of 3mm.
- The Xylan top coating forms a dense physical barrier, with water vapor transmission <0.5g/m²·24h (ASTM E96).
- The distinctive blue coating also serves as an identifier, with Lab color coordinates (35, -15, -45).
Key Performance Data
- Operating Temperature Range: -55°C to +240°C (short-term peak 280°C).
- Operating Temperature Range: -55°C to +240°C (short-term peak 280°C).
- Friction Coefficient: 0.08–0.12 (DIN 946).
- UV Resistance: >90% gloss retention after 3000 hours QUV accelerated aging.
- Torque Coefficient: 0.14±0.02 (ISO 16047).
Application Advantages
1. Extreme Environment Adaptability
- Zinc Nickel Xylan 1070 Stud Nut passes 1000 hours of ASTM G85 Annex 1 cyclic corrosion testing.
1. Extreme Environment Adaptability
- Zinc Nickel Xylan 1070 Stud Nut passes 1000 hours of ASTM G85 Annex 1 cyclic corrosion testing.
- Annual corrosion rate <2μm in 3.5% NaCl + 5% H₂SO₄ mixed solution.
2. Optimized Assembly Performance
- Zinc Nickel Xylan 1070 Stud Nut reduces assembly torque by 30% due to coating lubricity, ensuring precise preload control.
- Zinc Nickel Xylan 1070 Stud Nut reduces assembly torque by 30% due to coating lubricity, ensuring precise preload control.
- Contact resistance <0.5mΩ, meeting electrical equipment conductivity requirements.
3. Lifecycle Cost Efficiency
- Estimated service life exceeds 25 years (C5-class environment).
- Estimated service life exceeds 25 years (C5-class environment).
- Zinc Nickel Xylan 1070 Stud Nut extends maintenance-free intervals 5–8x compared to conventional products.
Quality Control System
Zinc Nickel Xylan 1070 Stud Nut adheres to ISO 4042 Class 5 protection standards, with:
- Batch-wise salt spray testing (2000-hour sampling).
Zinc Nickel Xylan 1070 Stud Nut adheres to ISO 4042 Class 5 protection standards, with:
- Batch-wise salt spray testing (2000-hour sampling).
- Periodic electrochemical impedance spectroscopy (EIS) monitoring.
- 100% coating thickness inspection (±5μm tolerance).
Typical Applications
- Offshore wind farm project: Zinc Nickel Xylan 1070 Stud Nut showed 100% coating integrity after 3 years.
- Offshore wind farm project: Zinc Nickel Xylan 1070 Stud Nut showed 100% coating integrity after 3 years.
- Chemical piping systems: No corrosion observed after 18 months in pH 2–12 media.
- High-speed rail bogies: Maintained excellent protection after 1 million km of operation.
Zinc Nickel Xylan 1070 Stud Nut is DNVGL-CP-0398 certified with a 15-year warranty. Available in M6–M36 sizes, including custom specifications. Special installation tools are recommended for optimal assembly.
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