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Inconel 601 Threaded Rods Manufacturer & Exporter in India

Explore Inconel 601 Threaded Rods Manufacturer & Exporter in India manufactured for demanding industrial applications with reliable strength, corrosion resistance and compliance with international standards.
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-200

Min Temp

1200

Max Temp

🌡

1200

Suitable for continuous service up to approximately 1200°C under typical operating conditions.

⚡

760

Typical tensile strength around 760 MPa depending on product form and heat treatment.

🛡

Excellent

Excellent corrosion resistance in a wide range of industrial environments.

⚖

8.4

Typical density is approximately 8.4 g/cm³.

Product Overview

What are Inconel 601 Threaded Rods?

Inconel 601 threaded rods are nickel-chromium-aluminium alloy fasteners manufactured from UNS N06601 bar stock conforming to ASTM B166. The alloy’s exceptional oxidation resistance is derived from its aluminium content (1.0-1.7%), which forms a tightly adherent alumina scale that protects the base metal at temperatures up to 1200°C under cyclic heating conditions.

With a chromium content of 21.0-25.0% and a nickel base of 58.0-63.0%, Inconel 601 threaded rods deliver outstanding resistance to high-temperature corrosion, carburisation, and nitriding atmospheres. These rods are widely specified for furnace internals, heat treatment equipment, and industrial combustion systems where sustained elevated-temperature performance is non-negotiable.

Quick Specifications

MaterialInconel 601
UNS NumberN06601
DIN Number2.4851
Material StandardASTM B166
Threaded Rod Standard (Metric)DIN 975 / DIN 976 / ISO 888
Threaded Rod Standard (Inch)ASME B18.31.3
Thread FormISO Metric / UNC / UNF
Diameter RangeM6-M100 / ¼"-4"
Tensile Strength550 MPa (80 ksi) min
Yield Strength205 MPa (30 ksi) min
HardnessMax 35 HRC / 200 HB
? All material certified by NABL-accredited laboratory. PMI available on request.

Complete the Fastener Set

Other Inconel 601 Fastener Products Available from RealBolt

RealBolt also manufactures the complete Inconel 601 fastener range from certified nickel-chromium superalloy bar stock, including Inconel 601 Bolts, Inconel 601 Nuts, Inconel 601 Screws, Inconel 601 Washers, and Inconel 601 Studs. All Inconel 601 fastener types are produced to ASTM with full EN 10204 MTC 3.1/3.2 documentation.
Inconel 601 Bolts
Inconel 601 Nuts
Inconel 601 Screws
Inconel 601 Washers
Inconel 601 Studs

Technical Data

Inconel 601 Threaded Rods Dimensions, Sizes & Thread Standards

Inconel 601 Threaded Rods are available in metric M6–M100 and inch ¼″–4″ as standard. Per DIN 975 (full thread rod) / DIN 976 (stud bolt rod) / ISO 888. Custom lengths available. Inch dimensions per ASME B18.31.3. All Inconel 601 threaded rods dimensions are verified against applicable DIN, ISO, and

Threaded Rod Dimensions - Metric (DIN 975 / ISO 888)

Size (M)Pitch (mm)Nom. Dia (mm)Min L (mm)Max L (mm)Standard Length
M61.06.010030001000 mm
M81.258.010030001000 mm
M101.510.010030001000 mm
M121.7512.010030001000 mm
M162.016.010030001000 mm
M202.520.010030001000 mm
M243.024.010030001000 mm
M303.530.010030001000 mm
M364.036.010030001000 mm
M424.542.015030001000 mm
M485.048.015030001000 mm
M565.556.020030001000 mm
M646.064.020030001000 mm
M726.072.020030001000 mm
M806.080.025030001000 mm
M1006.0100.030030001000 mm

Dimensional & Material Standards

StandardCoversThread
DIN 975Fully threaded rod, standard lengthsMetric
DIN 976Threaded rod / stud bolt formMetric
ISO 888Bolts, screws and studs - lengthsMetric
ASME B18.31.3Continuous threaded rodUNC/UNF
ASME B16.5Stud bolts for flangesUNC
MSS SP-75High-pressure stud bolt setsUNC
Material StandardRequirement
ASTM B166Bar/rod - UNS N06601
ASTM B168Plate/sheet - UNS N06601
ASTM F468Fastener mechanical properties
EN 10204 3.1Mill test certificate
EN 10204 3.2TPI-witnessed MTC

Material Chemistry

Inconel 601 Chemical Composition

Inconel 601 Threaded Rods are manufactured from a nickel-chromium superalloy containing nickel (72% min), chromium (14–17%), and iron (6–10%). Each element is precisely controlled per ASTM — nickel provides chloride SCC immunity, chromium drives high-temperature oxidation resistance, and iron balances structural stability and alloy cost.

Chemical Composition per ASTM B166

ElementComposition (%)
Nickel (Ni)58.0-63.0%
Chromium (Cr)21.0-25.0%
Aluminium (Al)1.0-1.7%
Iron (Fe)Balance
Carbon (C)0.10% max
Manganese (Mn)1.0% max
Silicon (Si)0.50% max
Copper (Cu)1.0% max
Sulphur (S)0.015% max
? All heats verified by NABL-accredited spectrometry. PMI available on request.

Why Inconel 601 Alloy Composition Matters for Threaded Rods

Al (1.0–1.7%) — Oxidation Resistance to 1200°C
Aluminium forms a dense, self-healing alumina (Al2O3) scale on the rod surface during high-temperature exposure. This scale acts as a diffusion barrier against oxygen ingress, making Inconel 601 threaded rods the preferred choice for furnace fixture and heat treatment basket assembly applications.
Cr (21.0–25.0%) — Carburisation & Nitriding Resistance
The elevated chromium content provides a secondary protective chromia layer that resists carburising and nitriding atmospheres encountered in gas-fired furnaces and ammonia cracking units. This dual-scale protection mechanism is unique to Inconel 601 among standard nickel alloys.
Ni (58.0–63.0%) — Thermal Fatigue Resistance
The high nickel base gives Inconel 601 threaded rods excellent resistance to thermal fatigue cracking under repeated heating and cooling cycles. Unlike iron-based alloys, the nickel matrix maintains ductility after prolonged exposure at temperatures above 900°C, preventing thread stripping during maintenance disassembly.

Fastener Performance

Inconel 601 Threaded Rods Mechanical Properties & Torque Reference

The table below lists mechanical properties and torque reference for Inconel 601 Threaded Rods per ASTM. Inconel 601 threaded rods achieve 760 MPa tensile strength, with hardness, yield, and elongation values verified by NABL-accredited testing and reported in the EN 10204 MTC.

Torque Reference - Inconel 601 Threaded Rods (Metric)

Rod SizeDry (Nm)Lubricated (Nm)Clamp Load (kN)
M12625023
M1615012055
M2029523688
M24510408127
M301020816202
M3617801424294
M4228402272405
M4842103368533
?? Anti-galling: Use nickel-based anti-seize (Molykote P-37 or equivalent). Lubricated values assume K=0.15. Never use copper-based anti-seize on nickel alloys - galvanic incompatibility accelerates thread corrosion at elevated temperatures.

Industry Applications

Inconel 601 Threaded Rods Applications — Industries & End Uses

Inconel 601 Threaded Rods from RealBolt are specified across oil and gas, aerospace, chemical processing, and power generation where excellent corrosion resistance and 760 MPa tensile strength are required for reliable fastener performance. Click each industry below for detailed application examples.
Inconel 601 threaded rods are the standard fastening solution for furnace muffle supports, radiant tube hangers, retort assemblies, and heat treatment basket frames. The alumina-forming surface scale provides continuous protection during repeated thermal cycling between ambient and 1200°C without scaling or thread degradation.
Threaded rods in Inconel 601 are specified for fired heater tube support hangers, refractory anchor systems, and burner tile retention hardware in ethylene crackers and crude distillation units. The alloy resists the combined attack of oxidising flue gas, sulphur compounds, and thermal shock at firebox temperatures exceeding 1000°C.
Inconel 601 threaded rods secure combustion liner panels, transition duct assemblies, and exhaust diffuser components in industrial gas turbines. The alloy’s resistance to oxidation and hot corrosion in lean-burn combustion environments makes it the preferred alternative to stainless steel above 900°C.
Threaded rod assemblies in Inconel 601 are used for reactor internals, catalyst support grids, and pressure vessel closure hardware in ammonia reforming, methanol synthesis, and hydrogen production plants where operating temperatures exceed the capability of standard austenitic stainless steels.

Inconel 601 Threaded Rods Standards & International Certifications

Inconel 601 Threaded Rods from RealBolt Engineering Industries are manufactured to internationally recognised fastener dimensional standards covering thread form, tolerances, strength grades, and quality requirements. Every batch ships with EN 10204 MTC 3.1/3.2, PMI (XRF), NACE MR0175/ISO 15156, and NABL-accredited lab reports — available on request for all orders.
Standards
DIN 975 DIN 976-1 ASME B18.31.2 IS 1367 IS 1364
Certifications
ISO 9001:2015NABL LabPED 2014/68/EUMTC 3.1 / 3.2EN 10204

Buy Inconel 601 Threaded Rods from India's Leading Manufacturer — Get a Competitive Quote Today

Partner with RealBolt — India’s leading manufacturer of certified Inconel 601 Threaded Rods — for competitive pricing, EN 10204 MTC 3.1/3.2 documentation, and fast Mumbai dispatch. Standard sizes are ex-stock; custom dimensions accepted with 2–3 week lead time. Request your quote today.
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Answers for Buyers

Inconel 601 Threaded Rods — Frequently Asked Questions

Browse expert answers to common questions about Inconel 601 Threaded Rods from RealBolt — covering ASTM standards, max service temperature, corrosion resistance, available sizes, lead times, and MTC certification. Contact our technical team directly for project-specific guidance on Inconel 601 threaded rods selection and pricing.
Inconel 601 threaded rods are manufactured to DIN 975 (fully threaded rod in standard 1000 mm lengths), DIN 976 (stud bolt rod form), and ISO 888 for metric thread series. Inch-series rods are produced per ASME B18.31.3 in UNC and UNF thread forms. Custom lengths up to 3000 mm are available in 10 mm increments for metric sizes. Special thread forms including BSW, BSPP, and Whitworth are available on request with a 15 working day lead time.
Inconel 601 threaded rods are rated for continuous service up to 1200°C in oxidising atmospheres and up to 1100°C under cyclic heating conditions. The alumina scale formed by the aluminium content (1.0-1.7%) provides self-healing oxidation protection. In carburising or nitriding atmospheres, the practical limit is approximately 1050°C. Above 1200°C, grain boundary oxidation becomes significant and Inconel 601 should be replaced with a higher-specification alloy such as Inconel 602CA.
Yes – Inconel 601 offers good resistance to carburising atmospheres up to approximately 1050°C. The combined chromia and alumina surface scale acts as a diffusion barrier against carbon ingress. For severe carburising service above 1050°C or in high-carbon-activity atmospheres (carbon potential above 1.0), consider specifying Inconel 601 rods with a pre-oxidation treatment to establish a fully developed protective scale before installation.
Use a nickel-based high-temperature anti-seize compound such as Molykote P-37, Jet-Lube KOPR-KOTE Pure Nickel, or Bostik Never-Seez Pure Nickel Special. These compounds remain effective up to 1200°C and prevent galling and thread seizure during disassembly after high-temperature service. Reduce assembly torque values by 20% compared to dry values when using anti-seize. Never use copper-based or graphite-based anti-seize on Inconel 601 – copper compounds cause liquid metal embrittlement at elevated temperatures.

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