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Nimonic 105 Bolts Manufacturer & Exporter in India

Explore Nimonic 105 Bolts 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 105 Bolts?

Nimonic 105 bolts are high-strength, nickel-chromium-cobalt alloy fasteners engineered for extreme temperature and stress environments. Manufactured from UNS N13021 bar stock to ASTM B637 and BS HR1 standards, these bolts are precipitation-hardened to achieve exceptional tensile and creep-rupture properties up to 1050°C. The alloy’s balanced additions of titanium and aluminium enable ?’ phase strengthening, while cobalt and molybdenum enhance hot strength and oxidation resistance.

Nimonic 105 bolts are widely specified for gas turbine, aerospace, and high-temperature industrial bolting applications where conventional stainless steels and superalloys cannot maintain integrity under sustained thermal cycling and mechanical load.

Quick Specifications

MaterialNimonic 105
UNS NumberN13021
DIN Number2.4634
Material StandardASTM B637 / BS HR1
Bolt Standard (Metric)DIN 931 / DIN 933 / ISO 4014
Bolt Standard (Inch)ASME B18.2.1
Thread FormISO Metric / UNC / UNF
Diameter RangeM6-M64 / ¼"-2½"
Tensile Strength1100 MPa (160 ksi) min
Yield Strength800 MPa (116 ksi) min
HardnessMax 38 HRC / 350 HB
? All material certified by NABL-accredited laboratory. PMI and hardness survey available on request.

Complete the Fastener Set

Other Nimonic 105 Fastener Products Available from RealBolt

RealBolt also manufactures the complete Nimonic 105 fastener range from certified nickel-chromium-cobalt superalloy bar stock, including Nimonic 105 Nuts, Nimonic 105 Screws, Nimonic 105 Washers, Nimonic 105 Studs, and Nimonic 105 Threaded Rods. All Nimonic 105 fastener types are produced to ASTM with full EN 10204 MTC 3.1/3.2 documentation.
Nimonic 105 Nuts
Nimonic 105 Screws
Nimonic 105 Washers
Nimonic 105 Studs
Nimonic 105 Threaded Rods

Technical Data

Nimonic 105 Bolts Dimensions, Sizes & Thread Standards

Nimonic 105 Bolts are available in metric M6–M100 and inch ¼″–4″ as standard. Per DIN 931 (partial thread) / DIN 933 (full thread) / ISO 4014. Custom lengths in 5mm increments. Inch dimensions available per ASME B18.2.1. All Nimonic 105 bolts dimensions are verified against applicable DIN, ISO, and ASME

Hex Bolt Dimensions - Metric (DIN 931 / ISO 4014)

Size (M)Pitch (mm)A/F (mm)Head Ht (mm)Min L (mm)Max L (mm)
M61.0104.010200
M81.25135.312250
M101.5176.416300
M121.75197.520400
M162.02410.025500
M202.53012.530600
M243.03615.040600
M303.54618.750800
M364.05522.5601000
M424.56526.0801000
M485.07530.01001200
M565.58535.01201500
M646.09540.01402000

Dimensional & Material Standards

StandardCoversThread
DIN 931Hex bolts, partial threadMetric
DIN 933Hex bolts, full threadMetric
ISO 4014Hex head screws, partialMetric
ISO 4017Hex head screws, fullMetric
ASME B18.2.1Hex & heavy hex boltsUNC/UNF
ASME B16.5Stud bolts for flangesUNC
MSS SP-75Stud bolts, high-pressureUNC
Material StandardRequirement
ASTM B637Bar/rod - UNS N13021
BS HR1Forgings & fasteners
AMS 5829High-temp fasteners
EN 10204 3.1Mill test certificate
EN 10204 3.2TPI-witnessed MTC

Material Chemistry

Nimonic 105 Chemical Composition

Nimonic 105 Bolts 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)Base (=53%)
Chromium (Cr)15.0-16.0
Cobalt (Co)19.0-21.0
Molybdenum (Mo)4.5-5.5
Titanium (Ti)1.2-1.7
Aluminium (Al)4.5-5.2
Carbon (C)0.12 max
Silicon (Si)1.0 max
Manganese (Mn)1.0 max
Iron (Fe)3.0 max
Zirconium (Zr)0.15-0.35
Boron (B)0.012 max
? All heats verified by NABL-accredited spectrometry. PMI available on request.

Why Nimonic 105 Alloy Composition Matters for Bolts

Al + Ti (4.5–5.2% + 1.2–1.7%) — Precipitation Hardening
Aluminium and titanium promote ?' phase precipitation, delivering high tensile and creep strength at temperatures up to 1050°C — essential for turbine and exhaust bolting.
Co (19–21%) — Hot Strength & Oxidation Resistance
Cobalt enhances hot strength and oxidation resistance, ensuring Nimonic 105 bolts retain mechanical properties during prolonged high-temperature exposure.
Mo (4.5–5.5%) — Solid Solution Strengthening
Molybdenum increases resistance to thermal fatigue and stress rupture, making these bolts reliable for cyclic loading in gas turbines and power plants.

Fastener Performance

Nimonic 105 Bolts Mechanical Properties & Torque Reference

The table below lists mechanical properties and torque reference for Nimonic 105 Bolts per ASTM. Nimonic 105 bolts achieve 620 MPa tensile strength, with hardness, yield, and elongation values verified by NABL-accredited testing and reported in the EN 10204 MTC.

Bolt SizeDry (Nm)Lubricated (Nm)Clamp Load (kN)
M121209638
M1628522892
M20570456148
M24980784215
M3019601568342
M3634002720497
M4254004320684
M4880006400900
?? 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 105 Bolts Applications — Industries & End Uses

Nimonic 105 Bolts 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 105 bolts are the industry standard for turbine casing, exhaust manifold, and combustor flange bolting in industrial and aero gas turbines. Their high creep rupture strength and oxidation resistance ensure reliable service at 900-1050°C under cyclic loading.
Used for jet engine afterburner, nozzle, and hot-section bolting, Nimonic 105 fasteners maintain mechanical integrity under extreme vibration, thermal cycling, and high-velocity gas exposure. AMS 5829 and BS HR1 compliant.
Specified for high-temperature reactor closures, furnace door bolts, and radiant coil supports in ethylene crackers and reformers where standard stainless steels fail due to creep or oxidation.
Nimonic 105 bolts are chosen for turbocharger, exhaust manifold, and header flange connections in motorsport and high-performance automotive applications, where sustained exhaust temperatures exceed 900°C.

Nimonic 105 Bolts Standards & International Certifications

Nimonic 105 Bolts 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 931 DIN 933 DIN 912 ISO 4014 ISO 4017 ISO 4762 ASME B18.2.1 ASME B18.3 IS 1367
Certifications
ISO 9001:2015NABL LabPED 2014/68/EUMTC 3.1 / 3.2

Buy Nimonic 105 Bolts from India's Leading Manufacturer — Get a Competitive Quote Today

Partner with RealBolt — India’s leading manufacturer of certified Nimonic 105 Bolts — 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 105 Bolts — Frequently Asked Questions

Browse expert answers to common questions about Nimonic 105 Bolts 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 105 bolts selection and pricing.
Nimonic 105 bolts are available to DIN 931 (metric partial thread), DIN 933 (metric full thread), ISO 4014/4017, and ASME B18.2.1 (inch hex and heavy hex). Stud bolts for flanges are supplied per ASME B16.5 or MSS SP-75. Custom thread forms (BSW, BSF, Whitworth, BSPP) can be manufactured on request with a typical lead time of 15 working days.
Use nickel-based anti-seize compound (such as Molykote P-37, Jet-Lube Pure Nickel, or Bostik Never-Seez Pure Nickel) on threads and nut bearing faces. Reduce torque values by 20% for lubricated assembly. Do not use copper-based or zinc-based anti-seize on nickel alloys, as this can accelerate galvanic corrosion.
Yes – Nimonic 105 bolts are engineered for continuous service at temperatures up to 1050°C, maintaining high tensile and creep strength. They are widely used in gas turbines, jet engines, and furnace assemblies where standard alloys fail due to thermal degradation.
No formal MOQ for standard sizes (M12-M36) held in stock – we supply from single pieces for urgent maintenance. Custom sizes or non-standard threads typically require a 10 kg minimum. Flange stud bolt sets are supplied by the set with no minimum. Quantity price breaks at 50 pcs, 200 pcs, and 500 pcs.

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