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Nimonic 90 Threaded Rods Manufacturer & Exporter in India

Explore Nimonic 90 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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-196

Min Temp

870

Max Temp

🌡

870

Suitable for continuous service up to approximately 870°C under typical operating conditions.

⚡

620

Typical tensile strength around 620 MPa depending on product form and heat treatment.

🛡

Very Good

Very Good corrosion resistance in a wide range of industrial environments.

⚖

8

Typical density is approximately 8.0 g/cm³.

Product Overview

What are Nimonic 90 Threaded Rods?

Nimonic 90 threaded rods are high-strength nickel-chromium-cobalt alloy fasteners manufactured from UNS N07090 bar stock conforming to ASTM B637. Designed for extreme environments, these rods offer exceptional mechanical strength and oxidation resistance up to 950°C, making them ideal for high-temperature bolted joints in turbines, exhaust systems, and petrochemical reactors.

With a balanced composition of chromium (18-21%), cobalt (15-21%), and titanium/aluminium for precipitation hardening, Nimonic 90 threaded rods maintain their integrity under cyclic thermal and mechanical loads. They are widely specified in aerospace, power generation, and chemical processing industries where standard stainless steels fail.

Quick Specifications

MaterialNimonic 90
UNS NumberN07090
DIN Number2.4632
Material StandardASTM B637
Rod Standard (Metric)DIN 975 / DIN 976
Rod Standard (Inch)ASME B18.31.3
Thread FormISO Metric / UNC / UNF
Diameter RangeM6-M64 / ¼"-2½"
Tensile Strength965 MPa (140 ksi) min
Yield Strength690 MPa (100 ksi) min
HardnessMax 36 HRC / 320 HB
? All material certified by NABL-accredited laboratory. PMI and hardness survey available on request.

Complete the Fastener Set

Other Nimonic 90 Fastener Products Available from RealBolt

RealBolt also manufactures the complete Nimonic 90 fastener range from certified nickel-chromium-cobalt superalloy bar stock, including Nimonic 90 Bolts, Nimonic 90 Nuts, Nimonic 90 Screws, Nimonic 90 Washers, and Nimonic 90 Studs. All Nimonic 90 fastener types are produced to ASTM with full EN 10204 MTC 3.1/3.2 documentation.
Nimonic 90 Bolts
Nimonic 90 Nuts
Nimonic 90 Screws
Nimonic 90 Washers
Nimonic 90 Studs

Technical Data

Nimonic 90 Threaded Rods Dimensions, Sizes & Thread Standards

Nimonic 90 Threaded Rods are available in metric M6–M100 and inch ¼″–4″ as standard. Per DIN 975 (full thread) / DIN 976 (studs) / ASME B18.31.3. Custom lengths up to 3 meters. Inch and metric threads available. All Nimonic 90 threaded rods dimensions are verified against applicable DIN, ISO, and

Threaded Rod Dimensions - Metric (DIN 975)

Size (M)Pitch (mm)Rod Dia (mm)Length (mm)
M61.06.0100-3000
M81.258.0100-3000
M101.510.0100-3000
M121.7512.0100-3000
M162.016.0100-3000
M202.520.0100-3000
M243.024.0100-3000
M303.530.0100-3000
M364.036.0100-3000
M424.542.0100-3000
M485.048.0100-3000
M565.556.0100-3000
M646.064.0100-3000

Dimensional & Material Standards

StandardCoversThread
DIN 975Threaded rods, full threadMetric
DIN 976Stud bolts, double endMetric
ASME B18.31.3Threaded rods, inchUNC/UNF
ISO 898-1Mechanical propertiesMetric
Material StandardRequirement
ASTM B637Bar/rod - UNS N07090
AMS 5829High-temp fasteners
EN 10204 3.1Mill test certificate
EN 10204 3.2TPI-witnessed MTC

Material Chemistry

Nimonic 90 Chemical Composition

Nimonic 90 Threaded Rods are manufactured from a precipitation-hardened nickel-chromium-cobalt superalloy with titanium and aluminium additions per AMS and BS HR specifications. These elements form the gamma-prime (Ni₃Al,Ti) precipitate phase that delivers creep rupture strength above 700°C — a performance level unachievable with standard nickel or stainless alloys.

Chemical Composition per ASTM B637

ElementComposition (%)
Nickel (Ni)Balance (min 53%)
Chromium (Cr)18.0-21.0%
Cobalt (Co)15.0-21.0%
Titanium (Ti)2.0-3.0%
Aluminium (Al)1.0-2.0%
Iron (Fe)1.5% max
Carbon (C)0.13% max
Silicon (Si)1.0% max
Manganese (Mn)1.0% max
Copper (Cu)0.2% max
Zirconium (Zr)0.2% max
Boron (B)0.02% max
? All heats verified by NABL-accredited spectrometry. PMI available on request.

Why Nimonic 90 Alloy Composition Matters for Threaded Rods

Cr (18–21%) — Oxidation Resistance
Chromium forms a stable oxide layer, protecting Nimonic 90 threaded rods from scaling and oxidation at temperatures up to 950°C, essential for turbine and exhaust bolting.
Co (15–21%) — High-Temperature Strength
Cobalt enhances hot strength and creep resistance, allowing Nimonic 90 rods to maintain preload and resist deformation under sustained thermal cycling.
Ti & Al — Precipitation Hardening
Titanium and aluminium promote ?' precipitation, delivering high tensile and yield strength after age hardening, critical for secure, long-life bolted joints in demanding environments.

Fastener Performance

Nimonic 90 Threaded Rods Mechanical Properties & Torque Reference

The table below lists mechanical properties and torque reference for Nimonic 90 Threaded Rods per ASTM. Nimonic 90 threaded rods achieve 620 MPa tensile strength, with hardness, yield, and elongation values verified by NABL-accredited testing and reported in the EN 10204 MTC.

Rod SizeDry (Nm)Lubricated (Nm)Clamp Load (kN)
M121108838
M1626020885
M20520416136
M24900720198
M3018001440315
M3631002480457
M4249503960630
M4873505880830
?? Anti-galling: Use nickel-based anti-seize (Molykote P-37 or equivalent). Lubricated values assume K=0.15. Avoid copper-based anti-seize on nickel alloys.

Industry Applications

Nimonic 90 Threaded Rods Applications — Industries & End Uses

Nimonic 90 Threaded Rods from RealBolt are specified across aerospace gas turbines, power generation, and high-temperature furnaces where very good corrosion resistance and 620 MPa tensile strength are required for reliable fastener performance. Click each industry below for detailed application examples.
Nimonic 90 threaded rods are specified for gas turbine engine casings, afterburner assemblies, and jet engine mounts where high-temperature strength and oxidation resistance are critical. AMS 5829 and Rolls-Royce MSRR 7137 listed.
Used for bolting in steam and gas turbine casings, HRSG ductwork, and exhaust manifolds where sustained temperatures up to 950°C and cyclic loading demand superior creep and fatigue resistance.
Threaded rods for high-pressure reactor closures, reformer tube supports, and heat exchanger tie rods in environments with aggressive chemicals and high temperatures where stainless steel fasteners fail.
Nimonic 90 rods are used in high-performance exhaust manifolds, turbocharger mounts, and racing engine assemblies for their ability to maintain preload and resist thermal fatigue at extreme exhaust temperatures.

Nimonic 90 Threaded Rods Standards & International Certifications

Nimonic 90 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, AMS material certification, heat treatment records, and first article inspection report (FAIR) — available on request for all orders.
Standards
DIN 975 DIN 976-1 ASME B18.31.2 IS 1367
Certifications
ISO 9001:2015NABL LabPED 2014/68/EUMTC 3.1 / 3.2

Buy Nimonic 90 Threaded Rods from India's Leading Manufacturer — Get a Competitive Quote Today

Partner with RealBolt — India’s leading manufacturer of certified Nimonic 90 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.
022-6743-7972
+91 90226 36025
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Answers for Buyers

Nimonic 90 Threaded Rods — Frequently Asked Questions

Browse expert answers to common questions about Nimonic 90 Threaded Rods from RealBolt — covering AMS specification, heat treatment, creep rupture data, max service temperature, sizes, and aerospace certification. Contact our technical team directly for project-specific guidance on Nimonic 90 threaded rods selection and pricing.
Nimonic 90 threaded rods are available to DIN 975 (full thread, metric), DIN 976 (studs), and ASME B18.31.3 (inch UNC/UNF). Custom thread forms such as BSW, BSF, and Whitworth can be supplied on request with a typical lead time of 2-3 weeks.
Always use a nickel-based anti-seize compound (such as Molykote P-37 or Jet-Lube Pure Nickel) on Nimonic 90 threads to prevent galling and seizing at high temperatures. Apply to both threads and nut faces. Avoid copper-based anti-seize to prevent galvanic corrosion.
Yes – Nimonic 90 threaded rods are engineered for continuous service up to 950°C, maintaining high tensile and creep strength. They are widely used in turbine, furnace, and exhaust bolting where standard alloys lose strength.
No MOQ for standard metric sizes (M8-M30) held in stock – single rods can be supplied for urgent maintenance. Custom diameters or cut lengths typically require a 10 kg minimum. Quantity discounts apply at 25, 100, and 500 rods.

Industrial Cities We Serve:

  • Ahmedabad
  • Aurangabad
  • Bengaluru
  • Chennai
  • Coimbatore
  • Faridabad
  • Gandhidham
  • Greater Noida
  • Gurugram
  • Hazira
  • Hosur
  • Hyderabad
  • Jamnagar
  • Jamshedpur
  • Ludhiana
  • Mumbai
  • Mundra
  • Mysuru
  • Nagpur
  • Nashik
  • Navi Mumbai
  • Noida
  • Pune
  • Rajkot
  • Sanand
  • Surat
  • Thane
  • Tiruppur
  • Vadodara
  • Visakhapatnam

Countries We Export To:

  • US
  • Canada
  • Mexico
  • Germany
  • UK
  • France
  • Italy
  • Spain
  • Netherlands
  • Belgium
  • Poland
  • Sweden
  • Norway
  • Denmark
  • Turkey
  • UAE
  • Saudi Arabia
  • Qatar
  • Oman
  • Kuwait
  • Bahrain
  • South Africa
  • Egypt
  • Nigeria
  • Australia
  • New Zealand
  • Singapore
  • Malaysia
  • Indonesia
  • Thailand
  • Vietnam
  • South Korea
  • Japan
  • Brazil