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Incoloy 925 Threaded Rods Manufacturer & Exporter in India

Explore Incoloy 925 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 Incoloy 925 Threaded Rods?

Incoloy 925 threaded rods are high-strength nickel-iron-chromium alloy fasteners manufactured from UNS N09925 bar stock in accordance with ASTM B805. Alloyed with significant additions of molybdenum, copper, and titanium, Incoloy 925 delivers exceptional resistance to chloride-induced pitting, crevice corrosion, and stress corrosion cracking, especially in sour (H2S) oilfield environments.

These threaded rods are widely specified for critical bolted joints in offshore platforms, subsea equipment, and chemical processing plants where both mechanical strength and corrosion resistance are paramount. Incoloy 925 threaded rods are NACE MR0175/ISO 15156 compliant and are a preferred choice for downhole and topside applications exposed to aggressive media.

Quick Specifications

MaterialIncoloy 925
UNS NumberN09925
DIN Number2.4858
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 Strength760 MPa (110 ksi) min
Yield Strength450 MPa (65 ksi) min
HardnessMax 35 HRC / 300 HB
? All material certified by NABL-accredited laboratory. PMI and hardness survey available on request.

Complete the Fastener Set

Other Incoloy 925 Fastener Products Available from RealBolt

RealBolt also manufactures the complete Incoloy 925 fastener range from certified iron-nickel-chromium alloy bar stock, including Incoloy 925 Bolts, Incoloy 925 Nuts, Incoloy 925 Screws, Incoloy 925 Washers, and Incoloy 925 Studs. All Incoloy 925 fastener types are produced to ASTM with full EN 10204 MTC 3.1/3.2 documentation.
Incoloy 925 Bolts
Incoloy 925 Nuts
Incoloy 925 Screws
Incoloy 925 Washers
Incoloy 925 Studs

Technical Data

Incoloy 925 Threaded Rods Dimensions, Sizes & Thread Standards

Incoloy 925 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 Incoloy 925 threaded rods dimensions are verified against applicable DIN, ISO, and

Threaded Rod Dimensions - Metric (DIN 975)

Size (M)Pitch (mm)Rod Dia (mm)Standard Length (mm)Custom Length (mm)
M61.061000Up to 3000
M81.2581000Up to 3000
M101.5101000Up to 3000
M121.75121000Up to 3000
M162.0161000Up to 3000
M202.5201000Up to 3000
M243.0241000Up to 3000
M303.5301000Up to 3000
M364.0361000Up to 3000
M424.5421000Up to 3000
M485.0481000Up to 3000
M565.5561000Up to 3000
M646.0641000Up to 3000

Dimensional & Material Standards

StandardCoversThread
DIN 975Threaded rods, full threadMetric
DIN 976Stud bolts, double endMetric
ASME B18.31.3Threaded rodsUNC/UNF
ASME B16.5Stud bolts for flangesUNC
ISO 898-1Mechanical propertiesMetric
Material StandardRequirement
ASTM B805Bar/rod - UNS N09925
ASTM F467Fastener mechanical
NACE MR0175Sour service =35 HRC
EN 10204 3.1Mill test certificate
EN 10204 3.2TPI-witnessed MTC

Material Chemistry

Incoloy 925 Chemical Composition

Incoloy 925 Threaded Rods are produced from an iron-nickel-chromium alloy with controlled nickel (30–46%), chromium (19–23%), and molybdenum content per ASTM. Nickel and chromium together resist high-temperature oxidation to 1093°C in 800H grades, while molybdenum and copper additions in Incoloy 825 provide sulfuric and phosphoric acid resistance.

Chemical Composition per ASTM B805

ElementComposition (%)
Nickel (Ni)38.0-46.0%
Chromium (Cr)19.5-23.5%
Iron (Fe)22.0% min
Molybdenum (Mo)2.5-3.5%
Copper (Cu)1.5-3.0%
Titanium (Ti)1.9-2.4%
Aluminium (Al)0.1% max
Manganese (Mn)1.0% max
Silicon (Si)0.5% max
Carbon (C)0.03% max
Sulfur (S)0.03% max
? All heats verified by NABL-accredited spectrometry. PMI available on request.

Why Incoloy 925 Alloy Composition Matters for Threaded Rods

Cr (19.5–23.5%) — General Corrosion Resistance
Chromium forms a passive oxide layer, protecting Incoloy 925 threaded rods from oxidation and general corrosion in harsh chemical and marine environments.
Mo (2.5–3.5%) & Cu (1.5–3.0%) — Pitting & Acid Resistance
Molybdenum and copper enhance resistance to pitting, crevice corrosion, and attack by reducing acids, making these rods ideal for sour gas and acidizing service.
Ti (1.9–2.4%) — Precipitation Hardening
Titanium enables age hardening, providing high strength and stress corrosion cracking resistance, especially under high loads in oilfield and subsea applications.

Fastener Performance

Incoloy 925 Threaded Rods Mechanical Properties & Torque Reference

The table below lists mechanical properties and torque reference for Incoloy 925 Threaded Rods per ASTM. Incoloy 925 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)
M12907234
M1622017680
M20440352128
M24760608186
M3015201216296
M3626402112430
M4242003360590
M4862404992780
?? Anti-galling: Use nickel-based anti-seize (Molykote P-37 or equivalent). Lubricated values assume K=0.15. Do not use copper-based anti-seize on Incoloy alloys.

Industry Applications

Incoloy 925 Threaded Rods Applications — Industries & End Uses

Incoloy 925 Threaded Rods from RealBolt are specified across petrochemical furnaces, chemical processing, nuclear, and power generation where very good corrosion resistance and 620 MPa tensile strength are required for reliable fastener performance. Click each industry below for detailed application examples.
Incoloy 925 threaded rods are the industry standard for downhole completion tools, subsea wellhead connectors, and BOP stacks exposed to H2S, CO2, and high-chloride brines. Fully NACE MR0175 compliant for sour service and listed in major oil company specifications.
Threaded rods for splash zone riser clamps, platform bracing, and marine pump assemblies where resistance to seawater pitting and crevice corrosion is critical for long-term integrity.
Used in reactor closures, acid storage tank nozzles, and heat exchanger tie rods in environments containing sulfuric, phosphoric, or hydrochloric acids where stainless steel fasteners fail.
Threaded rods for flue gas desulphurisation (FGD) absorber towers, selective catalytic reduction (SCR) units, and ductwork connections exposed to acidic condensates and thermal cycling.

Incoloy 925 Threaded Rods Standards & International Certifications

Incoloy 925 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 9001:2015NACE MR0175NABL LabPED 2014/68/EUMTC 3.1 / 3.2

Buy Incoloy 925 Threaded Rods from India's Leading Manufacturer — Get a Competitive Quote Today

Partner with RealBolt — India’s leading manufacturer of certified Incoloy 925 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
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Answers for Buyers

Incoloy 925 Threaded Rods — Frequently Asked Questions

Browse expert answers to common questions about Incoloy 925 Threaded Rods from RealBolt — covering grade differences, ASTM B408/B425 standards, oxidation limits, acid resistance, sizes, and MTC documentation. Contact our technical team directly for project-specific guidance on Incoloy 925 threaded rods selection and pricing.
Incoloy 925 threaded rods are available in ISO metric threads (DIN 975/976), UNC/UNF (ASME B18.31.3), and custom thread forms such as BSW, BSF, and ACME on request. Both right-hand and left-hand threads can be supplied. Special pitch and length requirements are accepted with short lead times.
Always use a pure nickel-based anti-seize compound (such as Molykote P-37 or Jet-Lube Pure Nickel) on Incoloy 925 threads to prevent galling and facilitate disassembly. Avoid copper- or zinc-based anti-seize, as these can cause galvanic corrosion with nickel alloys.
Yes – Incoloy 925 is specifically designed for sour gas (H2S) and CO2 environments, meeting NACE MR0175/ISO 15156 requirements. It resists sulfide stress cracking and pitting in high-chloride, high-pressure oilfield applications. Hardness is controlled below 35 HRC for compliance.
No MOQ for standard sizes (M12-M36) available ex-stock. For custom diameters or lengths, the MOQ is typically 10 kg. We accept single-piece orders for urgent maintenance and provide price breaks at 25, 100, and 500 pieces.

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