Table of Contents
- Inconel 600 / 601 Washers Overview
- Inconel 600 / 601 Washers Specifications
- Technical Properties & Chemical Composition
- Inconel 600 vs. Inconel 601 Washers
- Why Industries Prefer Inconel 600 / 601 Washers
- Types of Inconel 600 / 601 Washers
- Key Technical Advantages of Inconel 600 / 601 Washers
- Key Applications of Inconel 600 / 601 Washers
- Quality Testing & Inspection
- Global Export Markets
- Frequently Asked Questions
- Contact Aurum Overseas
Inconel 600 / 601 Washers Suppliers & Exporters
Aurum Overseas is a trusted Inconel 600/601 Washers Supplier and Inconel 600/601 Washers Exporter, stocking premium nickel-chromium fasteners in Plain, Spring, Lock, Square, and Conical styles to ASME B18.21.1, DIN 125, and ISO 7089 standards.
High nickel content (72% min for Grade 600; 58–63% for Grade 601) combined with chromium and aluminum gives these UNS N06600 / N06601 Washers outstanding resistance to high-temperature oxidation, carburization, and chloride stress cracking. As a leading global exporter, we supply certified Inconel 600 Washers and Inconel 601 Washers with 100% mill traceability for fast worldwide delivery.
Inconel 600 / 601 Washers Specifications
| Parameter | Technical Specification / Standard Range |
|---|---|
| Material Grade | Inconel 600 / Inconel 601 |
| UNS Designation | UNS N06600 / UNS N06601 |
| Werkstoff Number | 2.4816 (600) / 2.4851 (601) |
| Manufacturing Standards | ASTM B166, ASTM B564, ASME SB166, ASME SB564 |
| Dimensional Specifications | ASME B18.21.1, DIN 125 A/B, DIN 127, DIN 9021, ISO 7089, ISO 7090 |
| Washer Types | Plain Washers, Spring Washers, Lock Washers, Square Washers, Conical Washers |
| Size Range | Imperial: #4 to 4" NB | Metric: M3 to M100 |
| Thickness Range | 0.5 mm to 12 mm (Custom gauges available on request) |
| Delivery Condition | Solution Annealed / Soft Annealed |
| Hardness Limit | ≤ 92 HRB / ≤ 185 HB |
| Surface Finishes | Bright Machined, Passivated, Pickled, Descaled |
| Certification | EN 10204 3.1 MTR, PMI Verification, High-Temp Oxidation Testing |
Technical Properties & Chemical Composition
Chemical Composition of UNS N06600 / N06601 Washers (%)
| Element | Inconel 600 (UNS N06600) (%) | Inconel 601 (UNS N06601) (%) |
|---|---|---|
| Nickel (Ni) | 72.00 min | 58.00 – 63.00 |
| Chromium (Cr) | 14.00 – 17.00 | 21.00 – 25.00 |
| Iron (Fe) | 6.00 – 10.00 | Balance |
| Aluminum (Al) | — | 1.00 – 1.70 |
| Carbon (C) | ≤ 0.15 | ≤ 0.10 |
| Manganese (Mn) | ≤ 1.00 | ≤ 1.00 |
| Silicon (Si) | ≤ 0.50 | ≤ 0.50 |
| Copper (Cu) | ≤ 0.50 | ≤ 1.00 |
| Sulfur (S) | ≤ 0.015 | ≤ 0.015 |
Mechanical Properties of UNS N06600 / N06601 Washers
| Mechanical Parameter | Inconel 600 (UNS N06600) | Inconel 601 (UNS N06601) |
|---|---|---|
| Tensile Strength (MPa / psi) | 655 MPa / 95,000 psi | 550 MPa / 80,000 psi |
| Yield Strength 0.2% Offset (MPa / psi) | 310 MPa / 45,000 psi | 205 MPa / 30,000 psi |
| Elongation (%) | 40% | 30% |
| Density (g/cm³) | 8.47 g/cm³ | 8.10 g/cm³ |
| Melting Point | 1413°C (2580°F) | 1411°C (2571°F) |
Equivalent Grades of Inconel 600 / 601 Washers
| Standard / System | Inconel 600 Equivalent | Inconel 601 Equivalent |
|---|---|---|
| Werkstoff Nr. | 2.4816 | 2.4851 |
| UNS Designation | N06600 | N06601 |
Inconel 600 vs. Inconel 601 Washers
| Feature / Performance Property | Inconel 600 (UNS N06600) | Inconel 601 (UNS N06601) |
|---|---|---|
| Primary Alloy Focus | High-nickel formulation for severe chemical purity & alkali corrosion resistance. | Chromium-aluminum formulation engineered for extreme thermal oxidation resistance. |
| Peak Operating Temperature | Cryogenic up to 1095°C (2000°F). | Up to 1250°C (2200°F) continuous thermal service. |
| Oxidation Mechanism | Forms a stable nickel-chromium protective oxide scale. | Aluminum content forms a tightly adherent, spallation-resistant alumina layer. |
| Resistance to Carburization | Excellent resistance in high-temperature carbonaceous gas media. | Superior protection against cyclic oxidation and thermal spalling. |
| Alkali / Caustic Service | Virtually immune to caustic soda cracking due to 72% minimum nickel content. | Moderate alkali resistance; optimized primarily for thermal furnace gas atmospheres. |
Why Industries Prefer Inconel 600 / 601 Washers
High-Temperature Oxidation Resistance: High chromium and aluminum enable UNS N06601 Washers to withstand extreme heat up to 1250°C without scaling or degrading.
Caustic & Chemical Protection: A 72% minimum nickel matrix in Inconel 600 prevents caustic soda cracking and chemical attack where standard alloys fail.
Stress Corrosion Immunity: High nickel content provides complete reliability against chloride-induced stress corrosion cracking under heavy load.
Reliable High-Temperature Strength: Exceptional load retention (tensile strength up to 655 MPa) keeps bolted joints tight during severe thermal cycling.
Carburization Resistance: Stands up to harsh furnace gas and heat-treating environments without losing ductility or becoming brittle.
Types of Inconel 600 / 601 Washers
Aurum Overseas supplies a comprehensive range of stainless steel washer configurations manufactured according to standard DIN, ASME, and ISO dimensional tolerances for multiple engineering assemblies.
Inconel 600 / 601 Plain Washers
Inconel 600 / 601 Spring Washers
Inconel 600 / 601 Lock Washers
Inconel 600 / 601 Square Washers
Inconel 600 / 601 Conical Washers
Key Technical Advantages of Inconel 600 / 601 Washers
Protective Oxide Layer
Rapidly forms a tight surface film that resists thermal shock, fast cooling, and hot gas erosion.
Cryogenic to High-Heat Versatility
Stays tough and ductile at sub-zero temperatures while resisting creep and rupture at extreme heat.
Non-Magnetic Core
Retains low magnetic permeability in annealed states, ideal for sensitive instrumentation and electronic setups.
Grain-Boundary Stability
Balanced chemistry prevents carbide precipitation at elevated temperatures to preserve metal integrity.
Uniform Flange Clamping
Expands evenly alongside nickel alloy bolts to lock in constant seating pressure and leak-free performance.
Key Applications of Inconel 600 / 601 Washers
| Industry Sector | Application | Operating Environment |
|---|---|---|
| Heat Treating & Furnaces | Retort bolting, radiant tubes, and basket support fasteners | Thermal cycling up to 1250°C with carburizing and nitriding gases |
| Chemical & Petrochemical | Caustic evaporator flanges, phenol reactors, and fatty acid distillation | Concentrated alkaline solutions and high-temperature organic acids |
| Nuclear Engineering | Steam generator tube support hardware and reactor core components | High-purity primary water systems requiring resistance to intergranular attack |
| Aerospace & Turbines | Jet engine combustor hardware, turbine exhaust rings, and ducting | High-velocity hot gas streams, thermal vibration, and oxidation |
| Waste Incineration | Scrubber structural fasteners and thermal oxidation grid supports | Highly corrosive halogenated gases and thermal ash environments |
Quality Testing & Inspection
As a leading Inconel 600/601 Washers Supplier, Aurum Overseas enforces strict quality protocols across production batches:
- Chemical Analysis: PMI testing verifies exact alloy composition—72% min Ni (Grade 600) or 58–63% Ni / 21–25% Cr / 1–1.7% Al (Grade 601)—before dispatch.
- Mechanical & Hardness Testing: Load testing confirms high strength with tensile values up to 655 MPa (600) / 550 MPa (601) and yield values up to 310 MPa (600) / 205 MPa (601).
- Dimensional Inspection: Optical and micrometer checks verify exact thickness, inner diameter, outer diameter, and surface flatness.
- Traceable Documentation: Material test certificates (MTR) provide 100% heat traceability from raw mill stock to finished shipment.
Global Export Markets
As an established Inconel 600/601 Washers Exporter, Aurum Overseas supplies fully certified UNS N06600 / N06601 Washers to global energy and thermal engineering centers:
USA
Canada
Mexico
Germany
United
Kingdom
France
Italy
Netherlands
Norway
UAE
Saudi
Arabia
Qatar
Kuwait
Oman
Singapore
Malaysia
Australia
Frequently Asked Questions
Inconel 600 has higher nickel (72% min) for superior caustic and chemical resistance. Inconel 601 adds aluminum (1–1.7%) and higher chromium (21–25%) for extreme heat oxidation resistance up to 1250°C.
Inconel 600 works from cryogenic conditions up to 1095°C (2000°F). Inconel 601 handles continuous high-heat oxidation up to 1250°C (2200°F).
Yes. High nickel content (72% min) makes Grade 600 virtually immune to chloride stress corrosion cracking.
They resist oxidizing sulfur gases at high heat, but reducing sulfur environments require review based on gas levels and temperatures.
Contact Aurum Overseas
Aurum Overseas manufactures and stocks Inconel 600 / 601 Washers for urgent global project requirements.
Contact our technical sales team for instant pricing, mill test reports, and lead times.