ASTM B166 / ASME SB166 | UNS N06600 | DIN 2.4816 | AMS 5665
Inconel 600 round bar is a high-performance nickel-chromium alloy designed for high strength, excellent corrosion resistance, and performance over a broad temperature range, from cryogenic temperatures to service temperatures up to 2000°F (1093°C). Unifit Fastener is a reputed supplier of Inconel 600 round bar in India, which are available in top-quality ASTM B166/ASME SB166 round, hex, flat, square, and other custom shapes. We carry sizes ranging from 12mm to 300mm in diameter for a range of industries, including aerospace, nuclear engineering, chemical processing, oil & gas, and power generation. All bars we supply are sourced from reputable mills, tested to strict standards, and conform to international standards such as DIN 2.4816, UNS N06600, AMS 5665, and BS NA13. From standard lengths to customized stock with special surface finishes, our precision, speed, and transparency are guaranteed to you. Request a free quote and see why leading engineers worldwide and across India are turning to us for their critical nickel alloy needs
Request a QuoteInconel 600 (UNS N06600 / DIN 2.4816) is a solid-solution nickel-chromium alloy containing a minimum of 72% nickel and 14–17% chromium, with controlled levels of iron, carbon, manganese, sulfur, silicon, and copper. This carefully balanced chemical architecture gives the alloy a unique combination of properties that sets it apart from standard stainless steels and carbon steels:
These characteristics make Inconel 600 Round Bar the go-to material for engineers designing components where failure is not an option — from rocket engine parts to nuclear reactor fuel element spacers, heat exchangers, and chemical processing equipment.
| Parameter | Details |
| Material / Grade | Inconel 600 / Alloy 600 |
| ASTM Standard | ASTM B166 / ASME SB166 |
| UNS Number | N06600 |
| DIN Standard | DIN 2.4816 |
| BS Standard | BS NA13 |
| JIS Standard | JIS NCF 600 |
| EN Standard | NiCr15Fe |
| AMS Specification | AMS 5665 |
| GOST Standard | MHZhMTs 28-2.5-1.5 |
| Available Forms | Round Bar, Hex Bar, Flat Bar, Square Bar, Triangle, Half Round, Billet, Forging, Ingot, Rectangle |
| Size Range (Round) | 12 mm to 300 mm diameter (1/2" to ~12") |
| Flat Bar Thickness | 2 mm to 100 mm |
| Flat Bar Width | 10 mm to 500 mm |
| Length | 1 to 6 meters; custom-cut lengths available |
| Manufacturing Method | Hot Rolled, Cold Drawn, Cold Rolled, Forged |
| Surface Finish | Bright Annealed, Peeled, Centreless Ground, Black (Hot Rolled), Polish, Rough Turned |
| Heat Treatment | Annealed, Solution Annealed |
| Tolerances | H8, H9, H10, H11, H12, K10, H13K9, K12 K11 or as per client requirements |
| Chamfering | 30°, 45°, 60° — available via fully automatic both-end chamfering machine |
| Crack Detection | Magnetic Particle Inspection (MPI) |
| Element | Ni (Nickel) | Cr (Chromium) | Fe (Iron) | C (Carbon) | Mn (Manganese) | S (Sulfur) | Si (Silicon) | Cu (Copper) |
| Inconel 600 | 72.0 min | 14.0 - 17.0 | 6.0 - 10.0 | 0.15 max | 1.00 max | 0.015 max | 0.50 max | 0.50 max |
The elevated nickel content — a minimum 72% — is the foundation of Inconel 600's remarkable resistance under reducing conditions. Chromium provides the protective oxide barrier against oxidizing environments and carburization, while controlled iron content contributes to formability without compromising high-temperature performance.
| Form | Condition | Tensile Strength (MPa) | Yield Strength 0.2% (MPa) | Elongation (%) | Hardness (Rockwell B) |
| Rod & Bar | Cold Drawn | 550 - 690 | 170 - 345 | 35 - 55 | 65 - 85 |
| Rod & Bar | Hot Finished | 550 - 690 | 205 - 345 | 35 - 55 | 65 - 85 |
| Tube & Pipe | Hot Finished | 515 - 690 | 170 - 345 | 35 - 55 | — |
| Tube & Pipe | Cold Drawn | 550 - 690 | 170 - 345 | 35 - 55 | 88 Max |
| General | Annealed | 655 MPa (95,000 psi) | 310 MPa (45,000 psi) | 40 - 45 | — |
| Property | Value |
| Density | 8.47 g/cm³ |
| Melting Range | 1,354-1,413°C (2,470-2,580°F) |
| Tensile Strength | 655 MPa / 95,000 psi |
| Yield Strength (0.2% Offset) | 310 MPa / 45,000 psi |
| Elongation | 40 - 45% |
| Modulus of Elasticity | 207 GPa |
| Thermal Conductivity | 14.9 W/m.K at 21°C |
| Coefficient of Thermal Expansion | 13.3 micrometer/m.°C (21-538°C) |
| Magnetic Permeability | < 1.01 (Non-magnetic) |
| Standard Body | Designation / Grade |
| UNS (USA) | N06600 |
| ASTM / ASME | ASTM B166 / ASME SB166 |
| DIN (Germany) | 2.4816 |
| AFNOR (France) | NC15FE11M |
| BS (UK) | NA13 |
| JIS (Japan) | NCF 600 |
| EN (Europe) | NiCr15Fe |
| GOST (Russia) | MHZhMTs 28-2.5-1.5 / 3I868 |
| AMS (Aerospace) | AMS 5665 |
| ISO | ISO 6208 NC15Fe |
Unifit Fastener maintains ready stock of Inconel 600 in all major bar profiles to meet your exact engineering requirements:
| Bar Type | Description & Key Features |
| Inconel 600 Round Bar | Most common form; smooth circular cross-section; available in bright annealed, peeled, ground, or black finish |
| Inconel 600 Hex Bar (UNS N06600 Hex Bar) | Six-sided profile; ideal for valves, fittings, fasteners; precise dimensional accuracy per ASTM B166 |
| Inconel 600 Flat Bar | Rectangular cross-section; thickness 2-100 mm; width 10-500 mm; standard 6-meter lengths |
| Inconel 600 Square Bar | Equal four-sided section; excellent for machining components and structural applications |
| Inconel 600 Triangle Bar | Triangular cross-section used in specialty machined components |
| Inconel 600 Half Round Bar | Semi-circular profile for trim and seal applications |
| Inconel 600 Black Bar | Hot-rolled surface; unpolished; cost-effective for applications where finish is secondary |
| AMS 5665 Cold Drawn Bar | Aircraft-grade with tight tolerances; superior surface finish and mechanical consistency |
| DIN 2.4816 Peeled Round Bar | Centerless-ground/peeled for premium surface quality and strict dimensional control |
| Inconel 600 Forging / Billet | Custom shapes and profiles for large-scale structural and pressure vessel applications |
Pricing for Inconel 600 bar varies based on form, finish, size, quantity, and market conditions. The following table provides a general reference. Contact Unifit Fastener for a real-time, competitive quote tailored to your exact specifications.
| Product Type | Indicative Price (USD/Kg) | Indicative Price (INR/Kg) |
| Nickel Alloy 600 Round Bar (Standard) | $44 - $50 / Kg | Rs. 3,650 - Rs. 4,150 / Kg |
| UNS N06600 Black Bar | $46 - $47 / Kg | Rs. 3,800 - Rs. 3,900 / Kg |
| DIN 2.4816 Peeled Round Bar | $44 - $46 / Kg | Rs. 3,650 - Rs. 3,820 / Kg |
| BS NA13 Cold Drawn Bar | $47 - $50 / Kg | Rs. 3,900 - Rs. 4,150 / Kg |
| AMS 5665 Flat Bar | $45 - $49 / Kg | Rs. 3,730 - Rs. 4,070 / Kg |
| ASTM B166 Threaded Bar | $44 - $50 / Kg | Rs. 3,650 - Rs. 4,150 / Kg |
Note: All prices are indicative and subject to change based on LME nickel prices, order quantity, surface finish, and shipping terms. Prices quoted in INR are approximate and subject to currency conversion.
| Product Form | Size Range (mm) | Tolerance (mm) |
| Round Bar | 6 - 18 | +0 / -0.07 |
| Round Bar | 18 - 50 | +0 / -0.10 |
| Round Bar | 50 - 100 | +0 / -0.14 |
| Flat Bar (Thickness) | Up to 18 | +0 / -0.11 |
| Flat Bar (Thickness) | 18 - 80 | +0 / -0.35 |
| Square & Hex Bar | 6 - 30 | +0 / -0.11 |
| Square & Hex Bar | 30 - 105 | +0 / -0.25 |
| Flat Bar Size (mm) | Weight (kg/m) | Standard Length |
| 20 x 5 | 0.81 | 6 Mtr |
| 25 x 10 | 2.01 | 6 Mtr |
| 40 x 10 | 3.22 | 6 Mtr |
| 50 x 20 | 8.05 | 6 Mtr |
| 75 x 25 | 15.10 | 6 Mtr |
| 100 x 20 | 16.10 | 6 Mtr |
| 150 x 25 | 30.10 | 6 Mtr |
| 200 x 25 | 40.30 | 6 Mtr |
| 250 x 25 | 50.30 | 6 Mtr |
| 300 x 25 | 60.40 | 6 Mtr |
| Size (inches) | Weight per Foot (lbs) | Weight per 12 ft (lbs) | Size (mm) | Approx. Weight (kg/m) |
| 1/4" | 0.180 | 2.160 | 6 mm | 0.222 |
| 3/8" | 0.600 | 4.920 | 8 mm | 0.395 |
| 1/2" | 0.740 | 8.880 | 10 mm | 0.617 |
| 5/8" | 1.150 | 13.80 | 12 mm | 0.888 |
| 3/4" | 1.660 | 19.92 | 16 mm | 1.580 |
| 1" | 2.90 | 34.80 | 20 mm | 2.468 |
| 1-1/4" | 4.600 | 55.20 | 25 mm | 3.856 |
| 1-1/2" | 6.600 | 79.20 | 32 mm | 6.320 |
| 1-3/4" | 9.030 | 108.36 | 40 mm | 9.872 |
| 2" | 11.80 | 141.60 | 50 mm | 15.42 |
| 2-1/2" | 18.42 | 221.04 | 65 mm | 26.06 |
| 3" | 26.53 | 318.36 | 80 mm | 39.51 |
| Custom sizes up to 300 mm available on request | — | — | — | — |
Thanks to its extraordinary combination of corrosion resistance, high-temperature strength, and non-magnetic properties, Inconel 600 Round Bar finds critical application in the most demanding industrial environments:
| Industry / Sector | Typical Applications |
| Aerospace & Defense | Jet engine components, aircraft ducting, combustion liners, military hardware |
| Nuclear Engineering | Fuel element spacers, reactor core components, spent fuel storage equipment |
| Chemical Processing | Heat exchangers, reaction vessels, pickling equipment, distillation columns |
| Oil & Gas / Petrochemicals | Wellhead components, subsea fittings, high-pressure valves, offshore risers |
| Energy & Power Generation | Gas turbine components, steam generator tubes, heat shields |
| Heat Treatment Industry | Retort fixtures, furnace muffles, radiant tubes, roller hearths |
| Food Processing | High-temperature processing equipment, sterilization components |
| Pulp & Paper | Digesters, bleaching equipment, evaporators exposed to chloride environments |
| Marine / Shipbuilding | Desalination plant components, seawater handling systems |
| Automotive & Tractor | Exhaust valves, high-temperature trim components, stamped machined parts |
| Performance Factor | Inconel 600 Round Bar | Standard 316 Stainless Steel |
| Max Service Temperature | Up to 2000°F / 1093°C | Up to 1600°F / 871°C |
| Chloride SCC Resistance | Excellent | Susceptible |
| Carburization Resistance | Excellent (high Ni content) | Moderate |
| Cryogenic Performance | Excellent toughness | Moderate |
| Nickel Content | 72% min | 10 - 14% |
| Non-Magnetic | Yes | Mostly yes (work-hardens to magnetic) |
| Weldability | Excellent | Excellent |
| Alkaline Corrosion Resistance | Excellent | Good |
| Relative Cost | Premium | Standard |
| Ideal For | Critical high-temp & corrosive duty | General corrosive environments |
Unifit Fastener applies a rigorous multi-stage quality assurance process to every batch of Inconel 600 Round Bar supplied. Our comprehensive testing capabilities include:
| Test Category | Tests Performed |
| Chemical Analysis | Spectroscopic / OES analysis to verify full chemical composition per UNS N06600 |
| Mechanical Testing | Tensile strength, yield strength, elongation, reduction in area per ASTM A370 |
| Hardness Testing | Rockwell, Brinell, and Vickers hardness verification |
| Non-Destructive Testing | Ultrasonic Testing (UT), Eddy Current Testing, Magnetic Particle Inspection (MPI) |
| Surface Inspection | Liquid Penetrant Examination (LPT), Positive Material Identification (PMI) |
| Dimensional Inspection | Full dimensional verification: diameter, length, ovality, straightness |
| Corrosion Testing | Intergranular Corrosion (IGC) Test, Pitting Resistance Test |
| Additional Tests | Radiography, Hydrostatic, Flattening, Flaring, Impact, Bend, Micro/Macro Examination |
| Stress Corrosion | Sulfide Stress Corrosion Cracking (NACE TM 0177), HIC Test (NACE TM0284) |
All test reports — Mill Test Certificate (MTC) as per EN 10204 3.1 / 3.2 — are provided with every consignment. Third-party inspection by SGS, BV, or TUV is available on request.
Understanding how Inconel 600 Round Bar is manufactured helps engineers specify the correct condition for their application:
At Unifit Fastener, we understand that proper packaging is the final — and often overlooked — stage that protects your investment from the mill to the job site. We package Inconel 600 Round Bar in:
Each consignment is labeled with heat number, grade, size, quantity, and test certificate reference for full traceability. We comply with all IATA, IMDG, and export packaging regulations.
| Certification / Standard | Details |
| ISO 9001:2015 | Quality Management System certified |
| ASTM B166 / ASME SB166 | Standard specification for nickel-chromium-iron alloys round bar |
| EN 10204 3.1 / 3.2 | Mill test certificates provided with all shipments |
| PED 2014/68/EU | Pressure Equipment Directive — relevant for pressure vessel components |
| NACE MR0175 / ISO 15156 | Sour service compliance documentation available |
| RoHS Compliant | Materials free from restricted hazardous substances |
| Third-Party Inspection | SGS / Bureau Veritas / TUV / Intertek available on request |
| Property | Inconel 600 | Inconel 625 | Inconel 718 | Inconel 601 |
| UNS Number | N06600 | N06625 | N07718 | N06601 |
| Ni Content | 72% min | 58% min | 50-55% | 58-63% |
| Key Alloying Elements | Cr, Fe | Cr, Mo, Nb | Cr, Mo, Nb, Fe | Cr, Al, Fe |
| Max Service Temp | 1093°C / 2000°F | 982°C / 1800°F | 704°C / 1300°F | 1200°C / 2200°F |
| Oxidation Resistance | Excellent | Good | Good | Outstanding |
| Aqueous Corrosion Res. | Very Good | Outstanding | Good | Good |
| Age Hardenable | No | No | Yes | No |
| Primary Use | High-temp, chemical | Aerospace, seawater | Aerospace turbines | Furnace components |
| Cost Level | Moderate | High | Very High | Moderate-High |
Get an Instant Quote for Inconel 600 Round Bar — Contact Unifit Fastener Today!
Ready to source premium-quality Inconel 600 Round Bar at competitive prices with guaranteed certifications and on-time delivery? Unifit Fastener's specialist team is available to help you select the right size, form, and standard for your project — from a single bar to bulk consignments exported worldwide.
Get an Instant QuoteThe price of Inconel 600 round bar depends on factors such as size, diameter, length, quantity, and current nickel market rates. For the latest pricing and bulk order discounts, it is recommended to contact a trusted Inconel 600 round bar supplier or manufacturer directly.
Inconel 600 is widely used in industries that require excellent resistance to heat, oxidation, and corrosion. Common applications include chemical processing equipment, heat exchangers, furnace components, aerospace parts, marine equipment, and nuclear engineering systems.
Inconel 600 offers superior resistance to high temperatures, oxidation, and corrosive environments compared to Stainless Steel 304. While SS 304 is suitable for general-purpose applications, Inconel 600 is preferred for demanding industrial environments involving extreme heat and aggressive chemicals.
Inconel 600 has excellent corrosion and oxidation resistance and does not rust easily under normal operating conditions. Its high nickel content helps protect the alloy from rust, scaling, and deterioration even in harsh environments.
India has several reputable manufacturers and suppliers of Inconel round bars that provide products in various sizes and specifications. When selecting a manufacturer, it is important to choose a company that offers certified materials, quality testing, and compliance with international standards such as ASTM and ASME.