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Titanium Grade 4 Nuts Manufacturer & Exporter in India

Explore Titanium Grade 4 Nuts Manufacturer & Exporter in India manufactured for demanding industrial applications with reliable strength, corrosion resistance and compliance with international standards.
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-250

Min Temp

600

Max Temp

🌡

600

Suitable for continuous service up to approximately 600°C under typical operating conditions.

⚡

900

Typical tensile strength around 900 MPa depending on product form and heat treatment.

🛡

Outstanding

Outstanding corrosion resistance in a wide range of industrial environments.

⚖

4.5

Typical density is approximately 4.5 g/cm³.

Product Overview

What are Titanium Grade 4 Nuts?

Titanium Grade 4 nuts are high-strength, commercially pure titanium fasteners manufactured from UNS R50700 bar stock in accordance with ASTM B348 and ASTM F467. Grade 4 is the strongest of the commercially pure titanium grades, offering a minimum tensile strength of 550 MPa and excellent corrosion resistance in oxidizing and chloride-rich environments.

These nuts are widely specified for critical bolted joints in chemical processing, marine, medical, and aerospace applications where a combination of high strength, low weight, and biocompatibility is required. Titanium Grade 4 nuts are non-magnetic, exhibit excellent resistance to crevice and pitting corrosion, and are suitable for use in both ambient and elevated temperature service up to 400°C.

Quick Specifications

MaterialTitanium Grade 4
UNS NumberR50700
DIN Number3.7065
Material StandardASTM B348
Nut Standard (Metric)DIN 934 / ISO 4032
Nut Standard (Inch)ASME B18.2.2
Thread FormISO Metric / UNC / UNF
Diameter RangeM3-M64 / ?"-2½"
Tensile Strength550 MPa (80 ksi) min
Yield Strength483 MPa (70 ksi) min
HardnessMax 230 HV
? All material certified by NABL-accredited laboratory. PMI and mechanical test reports available on request.

Complete the Fastener Set

Other Titanium Grade 4 Fastener Products Available from RealBolt

RealBolt also manufactures the complete Titanium Grade 4 fastener range from certified titanium alloy bar stock, including Titanium Grade 4 Bolts, Titanium Grade 4 Screws, Titanium Grade 4 Washers, Titanium Grade 4 Studs, and Titanium Grade 4 Threaded Rods. All Titanium Grade 4 fastener types are produced to ASTM with full EN 10204 MTC 3.1/3.2 documentation.
Titanium Grade 4 Bolts
Titanium Grade 4 Screws
Titanium Grade 4 Washers
Titanium Grade 4 Studs
Titanium Grade 4 Threaded Rods

Technical Data

Titanium Grade 4 Nuts Dimensions, Sizes & Thread Standards

Titanium Grade 4 Nuts are available in metric M6–M100 and inch ¼″–4″ as standard. Per DIN 934 (hex nut) / ISO 4032. Custom thread pitches and special geometries available. Inch dimensions per ASME B18.2.2. All Titanium Grade 4 nuts dimensions are verified against applicable DIN, ISO, and ASME B18 standards

Hex Nut Dimensions - Metric (DIN 934 / ISO 4032)

Size (M)Pitch (mm)A/F (mm)Height (mm)
M30.55.52.4
M40.773.2
M50.884.7
M61.0105.0
M81.25136.5
M101.5178.0
M121.751910.0
M162.02413.0
M202.53016.0
M243.03619.0
M303.54624.0
M364.05529.0
M424.56534.0
M485.07538.0
M565.58545.0
M646.09551.0

Dimensional & Material Standards

StandardCoversThread
DIN 934Hex nutsMetric
ISO 4032Hex nutsMetric
ASME B18.2.2Hex & heavy hex nutsUNC/UNF
ISO 7040Prevailing torque nutsMetric
DIN 985Lock nutsMetric
Material StandardRequirement
ASTM B348Bar/rod - UNS R50700
ASTM F467Fastener mechanical
ISO 5832-2Medical implants
EN 10204 3.1Mill test certificate
EN 10204 3.2TPI-witnessed MTC

Material Chemistry

Titanium Grade 4 Chemical Composition

Titanium Grade 4 Nuts are manufactured from commercially pure or alloyed titanium with elemental limits strictly controlled per ASTM and AMS specifications. Oxygen and nitrogen contents govern strength and ductility in CP grades; aluminium and vanadium additions in Ti-6Al-4V (Grade 5) deliver 896 MPa tensile strength at 4.43 g/cm³ density.

Chemical Composition per ASTM B348

ElementComposition (%)
Titanium (Ti)Balance
Oxygen (O)0.30-0.40%
Iron (Fe)0.50% max
Carbon (C)0.08% max
Nitrogen (N)0.05% max
Hydrogen (H)0.015% max
Other Elements (each)0.10% max
Other Elements (total)0.40% max
? All heats verified by NABL-accredited spectrometry. PMI and gas analysis available on request.

Why Titanium Grade 4 Alloy Composition Matters for Nuts

High Oxygen Content (0.30–0.40%) — Strength
The elevated oxygen content in Titanium Grade 4 increases solid-solution strengthening, resulting in the highest tensile and yield strength among commercially pure titanium grades. This makes Grade 4 nuts ideal for high-load bolted joints in aggressive environments.
Low Interstitials — Corrosion Resistance
Strict limits on carbon, nitrogen, and hydrogen ensure excellent resistance to intergranular attack and hydrogen embrittlement, even in chloride and acidic service.
Biocompatibility
The absence of alloying elements and low impurity levels make Titanium Grade 4 nuts suitable for medical and dental implant hardware, as well as food and pharmaceutical processing equipment.

Fastener Performance

Titanium Grade 4 Nuts Mechanical Properties & Torque Reference

The table below lists mechanical properties and torque reference for Titanium Grade 4 Nuts per ASTM. Titanium Grade 4 nuts achieve 900 MPa tensile strength, with hardness, yield, and elongation values verified by NABL-accredited testing and reported in the EN 10204 MTC.

Nut SizeRecommended Torque (Nm)Clamp Load (kN)
M6108.5
M82514.5
M105023.0
M128533.0
M1621056.0
M2042087.0
M24720125.0
M301450200.0
?? Anti-galling: Always use a suitable lubricant (PTFE or MoS2-based) on titanium nuts and bolts to prevent galling. Lubricated values assume K=0.18. Avoid dry assembly for critical joints.

Industry Applications

Titanium Grade 4 Nuts Applications — Industries & End Uses

Titanium Grade 4 Nuts from RealBolt are specified across aerospace, marine, chemical processing, and medical devices where outstanding corrosion resistance and 900 MPa tensile strength are required for reliable fastener performance. Click each industry below for detailed application examples. Select an industry below to see specific Titanium Grade 4 nuts application details and RealBolt stock availability.
Titanium Grade 4 nuts are specified for bolted joints in heat exchangers, pressure vessels, and piping systems handling chlorine, hypochlorite, nitric acid, and other aggressive chemicals. Their immunity to crevice and pitting corrosion ensures long-term reliability in highly oxidizing and chloride-rich environments.
Used for seawater-cooled heat exchangers, hull penetrations, and deck equipment, Titanium Grade 4 nuts provide unmatched resistance to seawater corrosion and biofouling. Their low density and high strength make them ideal for weight-sensitive marine structures.
Titanium Grade 4 nuts are biocompatible and non-toxic, making them suitable for medical device assemblies, surgical instruments, and pharmaceutical processing equipment where hygiene and corrosion resistance are critical.
Employed in airframe assemblies, landing gear, and engine components, Titanium Grade 4 nuts offer high strength-to-weight ratio and resistance to stress corrosion cracking, meeting stringent AMS and ISO standards for aerospace hardware.

Titanium Grade 4 Nuts Standards & International Certifications

Titanium Grade 4 Nuts 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, AS 9100D traceability for aerospace grades, and NABL lab reports — available on request for all orders.
Standards
DIN 934 ISO 4032 ASME B18.2.2 IS 1367
Certifications
ISO 9001:2015PED 2014/68/EUNABL LabMTC 3.1 / 3.2ISO 13485

Buy Titanium Grade 4 Nuts from India's Leading Manufacturer — Get a Competitive Quote Today

Partner with RealBolt — India’s leading manufacturer of certified Titanium Grade 4 Nuts — 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

Titanium Grade 4 Nuts — Frequently Asked Questions

Browse expert answers to common questions about Titanium Grade 4 Nuts from RealBolt — covering grade selection, ASTM B348/F467, seawater immunity, weight saving, galling precautions, and certification. Contact our technical team directly for project-specific guidance on Titanium Grade 4 nuts selection and pricing.
Titanium Grade 4 nuts are available to DIN 934 (metric hex), ISO 4032, ASME B18.2.2 (inch hex and heavy hex), and DIN 985 (nyloc lock nuts). Prevailing torque and special thin nuts can be supplied to ISO 7040 and DIN 439. Custom thread forms (UNC, UNF, BSW) are available on request with short lead times.
Always use a PTFE-based or molybdenum disulfide (MoS2) anti-seize lubricant on Titanium Grade 4 nuts and bolts. This prevents galling and cold welding during assembly. Avoid copper-based lubricants, as they can cause galvanic corrosion with titanium. Lubricated torque values should be used for all critical joints.
Yes – Titanium Grade 4 nuts are completely resistant to seawater corrosion, including in crevices and under static conditions. They are widely used in marine heat exchangers, desalination plants, and offshore structures. No additional coating or cathodic protection is required for marine service.
No MOQ for standard metric sizes (M6-M24) held in stock – we supply from single pieces for urgent requirements. Custom sizes or special threads have a minimum order of 5 kg. Price breaks are available at 50 pcs, 200 pcs, and 500 pcs for project quantities.

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