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Nimonic 263 Threaded Rods Manufacturer & Exporter in India

Explore Nimonic 263 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 263 Threaded Rods?

Nimonic 263 threaded rods are high-strength, nickel-cobalt-chromium-molybdenum alloy fasteners manufactured from UNS N07263 bar stock in accordance with ASTM B805. Designed for service in temperatures up to 800°C, these rods offer a unique combination of age-hardenable strength, excellent oxidation resistance, and superior weldability compared to other superalloys.

With a balanced composition of chromium (20%), cobalt (20%), and molybdenum (6%), Nimonic 263 threaded rods are widely specified for gas turbine, petrochemical, and high-temperature bolting applications where creep resistance and structural integrity are critical. All rods are supplied solution annealed and age-hardened for optimal mechanical properties.

Quick Specifications

MaterialNimonic 263
UNS NumberN07263
DIN Number2.4650
Material StandardASTM B805
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 Strength930 MPa (135 ksi) min
Yield Strength585 MPa (85 ksi) min
HardnessMax 32 HRC / 300 HB
? All material certified by NABL-accredited laboratory. PMI and hardness survey available on request.

Complete the Fastener Set

Other Nimonic 263 Fastener Products Available from RealBolt

RealBolt also manufactures the complete Nimonic 263 fastener range from certified nickel-chromium-cobalt superalloy bar stock, including Nimonic 263 Bolts, Nimonic 263 Nuts, Nimonic 263 Screws, Nimonic 263 Washers, and Nimonic 263 Studs. All Nimonic 263 fastener types are produced to ASTM with full EN 10204 MTC 3.1/3.2 documentation.
Nimonic 263 Bolts
Nimonic 263 Nuts
Nimonic 263 Screws
Nimonic 263 Washers
Nimonic 263 Studs

Technical Data

Nimonic 263 Threaded Rods Dimensions, Sizes & Thread Standards

Nimonic 263 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 263 threaded rods dimensions are verified against applicable DIN, ISO, and

Threaded Rod Dimensions - Metric (DIN 975)

Size (M)Pitch (mm)Rod Diameter (mm)Standard Length (mm)Custom Length (mm)
M61.06.01000up to 3000
M81.258.01000up to 3000
M101.510.01000up to 3000
M121.7512.01000up to 3000
M162.016.01000up to 3000
M202.520.01000up to 3000
M243.024.01000up to 3000
M303.530.01000up to 3000
M364.036.01000up to 3000
M424.542.01000up to 3000
M485.048.01000up to 3000
M565.556.01000up to 3000
M646.064.01000up to 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 B805Bar/rod - UNS N07263
AMS 5872Rod/Bar, aerospace
EN 10204 3.1Mill test certificate
EN 10204 3.2TPI-witnessed MTC

Material Chemistry

Nimonic 263 Chemical Composition

Nimonic 263 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 B805

ElementComposition (%)
Nickel (Ni)49.0 min
Cobalt (Co)19.0-21.0
Chromium (Cr)19.0-21.0
Molybdenum (Mo)5.6-6.1
Titanium (Ti)1.9-2.4
Aluminium (Al)0.5-0.6
Iron (Fe)0.7 max
Carbon (C)0.04-0.08
Silicon (Si)0.4 max
Manganese (Mn)0.6 max
Copper (Cu)0.2 max
Boron (B)0.005 max
Zirconium (Zr)0.06 max
? All heats verified by NABL-accredited spectrometry. PMI available on request.

Why Nimonic 263 Alloy Composition Matters for Threaded Rods

Cr & Co (19–21%) — Oxidation & Creep Resistance
Chromium and cobalt provide Nimonic 263 threaded rods with outstanding oxidation resistance and high-temperature strength, essential for secure bolting in gas turbines and exhaust systems.
Mo (5.6–6.1%) — Solid Solution Strengthening
Molybdenum enhances the alloy’s creep resistance and maintains mechanical integrity at elevated temperatures, making these rods ideal for critical high-heat assemblies.
Ti & Al — Age Hardening
Titanium and aluminium enable precipitation hardening, allowing Nimonic 263 rods to achieve high tensile strength after heat treatment without sacrificing ductility or weldability.

Fastener Performance

Nimonic 263 Threaded Rods Mechanical Properties & Torque Reference

The table below lists mechanical properties and torque reference for Nimonic 263 Threaded Rods per ASTM. Nimonic 263 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
M3631202496457
M4249803984630
M4873805904825
?? 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 263 Threaded Rods Applications — Industries & End Uses

Nimonic 263 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 263 threaded rods are widely used for bolting in turbine casings, combustor assemblies, and afterburner sections of jet engines, where high-temperature strength and oxidation resistance are critical. Approved to AMS 5872 for aerospace use.
Threaded rods for heat recovery steam generator (HRSG) ductwork, gas turbine exhaust flanges, and high-temperature expansion joints, where creep resistance and structural stability are required at 700-800°C.
Used in reformer tube supports, catalyst basket assemblies, and high-pressure vessel closures exposed to hydrogen, ammonia, and hot process gases. Nimonic 263 rods maintain integrity where stainless steel fails.
Threaded rods for furnace fixtures, radiant tube supports, and heat treatment baskets, providing long-term service in cyclic thermal environments and resisting scaling and embrittlement.

Nimonic 263 Threaded Rods Standards & International Certifications

Nimonic 263 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 9001:2015PED 2014/68/EUNABL LabEN 10204 3.1 / 3.2

Buy Nimonic 263 Threaded Rods from India's Leading Manufacturer — Get a Competitive Quote Today

Partner with RealBolt — India’s leading manufacturer of certified Nimonic 263 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 263 Threaded Rods — Frequently Asked Questions

Browse expert answers to common questions about Nimonic 263 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 263 threaded rods selection and pricing.
Nimonic 263 threaded rods are supplied to DIN 975 (full thread), DIN 976 (studs), and ASME B18.31.3 (inch series). Aerospace applications use AMS 5872. Custom thread forms (metric fine, UNC, UNF, BSW) are available on request with short lead times.
Always use a nickel-based anti-seize compound (such as Molykote P-37 or Jet-Lube Pure Nickel) on threads and nut faces. This prevents galling and ensures consistent preload. Avoid copper-based anti-seize to prevent galvanic corrosion with nickel alloys.
Yes – Nimonic 263 is engineered for continuous service up to 800°C, with excellent creep and oxidation resistance. It is the preferred choice for gas turbine, HRSG, and furnace bolting where stainless steel or Inconel 718 are inadequate.
No MOQ for standard sizes (M10-M36) held in stock – single rods can be supplied for urgent needs. Custom diameters or cut lengths typically require a 10 kg minimum. Bulk discounts apply at 25, 100, and 250 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