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UNS N06985

UNS N06985

Premium UNS N06985 Hastelloy G-3 Nickel Alloy by MetalZenith

UNS N06985, also known as Hastelloy G-3, is a premium nickel-chromium-molybdenum alloy engineered for exceptional corrosion resistance in severe chemical processing environments. This advanced superalloy demonstrates outstanding performance in both oxidizing and reducing conditions, making it ideal for the most demanding industrial applications.

MetalZenith's Advanced Manufacturing Excellence

As a leading specialty alloy manufacturer, MetalZenith employs state-of-the-art vacuum induction melting (VIM) and vacuum arc remelting (VAR) technologies to produce UNS N06985 with superior metallurgical quality. Our advanced processing capabilities include precision hot working, solution annealing, and comprehensive quality control systems that ensure consistent chemical composition and mechanical properties throughout every production batch.

Key Applications and Industries

  • Chemical processing equipment and reactors
  • Pollution control systems and scrubbers
  • Pulp and paper industry components
  • Pharmaceutical manufacturing equipment
  • Flue gas desulfurization systems

Quality Assurance and Global Supply

MetalZenith maintains ISO 9001:2015 certification and NACE compliance, ensuring every UNS N06985 product meets the highest international standards. Our comprehensive testing protocols include chemical analysis, mechanical testing, and corrosion resistance evaluation, backed by full material traceability and certification documentation for complete customer confidence.

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20 Years Experience | 1000+ Brand Partners | Full Customization

We have 20 years of industry experience, have partnered with over 1,000 brands, and support any customization needs.

Technical Specifications

Product Overview

Metallurgical Characteristics

UNS N06985 (Hastelloy G-3) is an austenitic nickel-chromium-molybdenum alloy with exceptional corrosion resistance in both oxidizing and reducing environments. The alloy's microstructure consists of a stable austenitic matrix with optimized chromium and molybdenum content for superior resistance to localized corrosion, including pitting, crevice corrosion, and stress corrosion cracking.

Heat Treatment and Processing

MetalZenith employs precise solution annealing at 1120-1180°C followed by rapid cooling to achieve optimal corrosion resistance and mechanical properties. The alloy cannot be hardened by precipitation hardening but can be strengthened through cold working. Our controlled atmosphere processing prevents carbide precipitation and maintains the alloy's corrosion-resistant properties.

Manufacturing Process Excellence

Our advanced manufacturing process begins with vacuum induction melting (VIM) using high-purity raw materials, followed by vacuum arc remelting (VAR) for enhanced cleanliness and homogeneity. Hot working operations are performed within precise temperature ranges (1010-1200°C) to ensure optimal grain structure and mechanical properties. Cold working capabilities enable achievement of higher strength levels when required.

Quality Standards and Certifications

All UNS N06985 products manufactured by MetalZenith comply with ASTM B582, ASME SB-582, and international standards including DIN 2.4619. Our quality management system maintains ISO 9001:2015 certification with NACE compliance for critical applications. Comprehensive testing includes chemical analysis by ICP-OES, mechanical testing per ASTM standards, and specialized corrosion testing to verify performance in specific environments. Each shipment includes complete material test certificates with full traceability documentation.

🧪 Chemical Composition

ElementComposition (%)
Nickel (Ni)44.0 - 47.0
Chromium (Cr)21.0 - 23.5
Molybdenum (Mo)6.0 - 8.0
Iron (Fe)18.0 - 21.0
Tungsten (W)1.0 - 2.5
Copper (Cu)1.5 - 2.5
Cobalt (Co)≤ 2.0
Carbon (C)≤ 0.015
Manganese (Mn)≤ 1.0
Silicon (Si)≤ 1.0
Phosphorus (P)≤ 0.040
Sulfur (S)≤ 0.030

⚙️ Mechanical Properties

PropertyValue
Tensile Strength (Room Temperature)≥ 690 MPa
Yield Strength (0.2% Offset)≥ 310 MPa
Elongation in 50mm≥ 40%
Hardness (Brinell)≤ 241 HB
Hardness (Rockwell B)≤ 99 HRB
Young's Modulus207 GPa
Shear Modulus81 GPa
Poisson's Ratio0.278
Impact Strength (Charpy V-notch)≥ 203 J
Fatigue Strength (10&sup7; cycles)310 MPa

🔬 Physical Properties

PropertyValue
Density8.22 g/cm³
Melting Point1325-1370°C
Thermal Conductivity (100°C)10.5 W/m·K
Thermal Conductivity (500°C)18.4 W/m·K
Thermal Expansion (20-100°C)12.4×10-6/K
Thermal Expansion (20-500°C)13.8×10-6/K
Specific Heat Capacity427 J/kg·K
Electrical Resistivity (20°C)1.18 µΩ·m
Magnetic Permeability1.002 (Essentially Non-magnetic)
Curie TemperatureNot Applicable

📏 Product Specifications

SpecificationAvailable Options
Product FormsPlate, Sheet, Strip, Bar, Rod, Wire, Tube, Pipe, Forging
Plate Thickness6mm - 150mm
Sheet Thickness0.5mm - 6mm
Bar Diameter6mm - 300mm
Tube OD Range6mm - 219mm
Wire Diameter0.1mm - 10mm
StandardsASTM B582, ASME SB-582, UNS N06985, DIN 2.4619
Surface FinishMill Finish, Pickled, Polished, Custom
ToleranceASTM Standard, Custom Precision Available
ConditionSolution Annealed, Cold Worked

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Our Advantages in Processing UNS N06985

Manufacturing Advantage 1

Advanced Vacuum Melting Technology

MetalZenith utilizes cutting-edge vacuum induction melting (VIM) and vacuum arc remelting (VAR) processes to produce UNS N06985 with exceptional purity and homogeneity. Our controlled atmosphere melting eliminates inclusions and ensures optimal chemical composition consistency throughout the entire alloy structure.

Comprehensive Quality Control Systems

Our state-of-the-art testing laboratory employs advanced spectroscopic analysis, mechanical testing equipment, and corrosion testing facilities to verify every aspect of UNS N06985 performance. Each batch undergoes rigorous inspection with full traceability documentation and international certification compliance.

Manufacturing Advantage 2
Manufacturing Advantage 3

Custom Processing and Global Distribution

MetalZenith offers extensive customization capabilities including precision machining, specialized heat treatments, and custom dimensions to meet specific application requirements. Our global supply chain network ensures reliable delivery worldwide with comprehensive technical support and engineering consultation services.

YOUR TRUSTED STEEL

MANUFACTURING PARTNER

20
Years Experience
Leading Steel Manufacturing & Distribution
1000+
Brand Partners
Trusted by Global Industry Leaders
Full
Customization
Tailored Solutions for Every Project
50M+
Tons Delivered
High-Quality Steel Products Worldwide
95%
Client Retention
Long-term Partnership Success
ISO 9001
Certified Quality
International Standards Compliance
20
Years Experience
Leading Steel Manufacturing & Distribution
1000+
Brand Partners
Trusted by Global Industry Leaders
Full
Customization
Tailored Solutions for Every Project
50M+
Tons Delivered
High-Quality Steel Products Worldwide
95%
Client Retention
Long-term Partnership Success
ISO 9001
Certified Quality
International Standards Compliance
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Industries We Serve

Professional steel solutions across major industries

Construction

High-rise Buildings • Infrastructure • Commercial Real Estate

Oil & Gas

Pipeline Systems • Storage Equipment • Refinery Facilities

Manufacturing

Precision Machinery • Industrial Equipment • Automation Systems

Automotive

Body Structure • Chassis Components • Engine Parts

Shipbuilding

Hull Structure • Marine Engineering • Port Equipment

Energy & Power

Power Generation • Transmission Towers • Renewable Energy

Aerospace

Aircraft Materials • Precision Components • Special Alloys

Railway

Track Systems • Vehicle Manufacturing • Infrastructure

Qualifications & Certifications

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