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Titanium Grade 4 Bolts Manufacturer & Exporter in India

Explore Titanium Grade 4 Bolts 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 Bolts?

Titanium Grade 4 bolts are high-strength, commercially pure titanium fasteners manufactured from UNS R50700 bar stock in accordance with ASTM B348 and ASTM F67. 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 bolts are widely specified for critical applications in chemical processing, marine, medical, and aerospace industries where high strength-to-weight ratio, biocompatibility, and immunity to crevice and pitting corrosion are essential. Titanium Grade 4 bolts are non-magnetic, exhibit low thermal expansion, and are suitable for both cryogenic and elevated temperature service up to 400°C.

Quick Specifications

MaterialTitanium Grade 4
UNS NumberR50700
DIN Number3.7065
Material StandardASTM B348 / ASTM F67
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 Strength550 MPa (80 ksi) min
Yield Strength483 MPa (70 ksi) min
HardnessMax 230 HV
? All material certified by NABL-accredited laboratory. PMI and oxygen content verification 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 Nuts, 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 Nuts
Titanium Grade 4 Screws
Titanium Grade 4 Washers
Titanium Grade 4 Studs
Titanium Grade 4 Threaded Rods

Technical Data

Titanium Grade 4 Bolts Dimensions, Sizes & Thread Standards

Titanium Grade 4 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 Titanium Grade 4 bolts dimensions conform to applicable DIN, ISO, and ASME B18 standards.

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 B348Bar/rod - UNS R50700
ASTM F67Unalloyed titanium fasteners
ISO 5832-2Surgical implant fasteners
EN 10204 3.1Mill test certificate
EN 10204 3.2TPI-witnessed MTC

Material Chemistry

Titanium Grade 4 Chemical Composition

Titanium Grade 4 Bolts 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)0.40% max
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. Oxygen and nitrogen content tested per batch.

Why Titanium Grade 4 Alloy Composition Matters for Bolts

High Oxygen Content — Strength
Grade 4 titanium’s higher oxygen content (up to 0.40%) increases tensile and yield strength, making these bolts suitable for high-pressure and structural applications where Grade 2 is insufficient.
Low Iron & Carbon — Corrosion Resistance
Strict limits on iron and carbon ensure maximum corrosion resistance in oxidizing, chloride, and marine environments, preventing localized attack and embrittlement.
Biocompatibility
The absence of alloying elements and low interstitials make Titanium Grade 4 bolts ideal for medical, dental, and food-contact applications where biocompatibility is critical.

Fastener Performance

Titanium Grade 4 Bolts Mechanical Properties & Torque Reference

The table below lists mechanical properties and torque reference for Titanium Grade 4 Bolts per ASTM. Titanium Grade 4 bolts achieve 900 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)
M12604825
M1614011255
M2027021687
M24470376125
M30950760200
M3616501320290
M4226002080400
M4839003120540
?? Anti-galling: Use molybdenum disulfide or PTFE-based anti-seize. Lubricated values assume K=0.16. Avoid dry assembly for large diameters to prevent galling.

Industry Applications

Titanium Grade 4 Bolts Applications — Industries & End Uses

Titanium Grade 4 Bolts 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 bolts application details and RealBolt stock availability.
Titanium Grade 4 bolts are widely used in surgical implants, dental prosthetics, and orthopedic devices due to their biocompatibility, non-magnetic properties, and resistance to body fluids. Supplied per ISO 5832-2 and ASTM F67 for critical medical applications.
Hex bolts and stud bolts for pressure vessels, heat exchangers, and piping systems in chlorine, hypochlorite, nitric acid, and seawater service. Grade 4’s high strength and corrosion resistance outperform stainless steel in aggressive chemical environments.
Fasteners for shipbuilding, desalination plants, and offshore platforms where resistance to seawater, brine, and marine atmospheres is essential. Grade 4 bolts prevent crevice corrosion under bolt heads and washers in submerged and splash zone conditions.
Titanium Grade 4 bolts are specified for airframe structural joints, landing gear, and racing vehicle assemblies where high strength-to-weight ratio and fatigue resistance are critical. Supplied per AMS 4901 and EN 9100 for aerospace compliance.

Titanium Grade 4 Bolts Standards & International Certifications

Titanium Grade 4 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, AS 9100D traceability for aerospace grades, and NABL lab reports — 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 9001:2015PED 2014/68/EUNABL LabEN 10204 3.1 / 3.2CE Marking

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

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

Titanium Grade 4 Bolts — Frequently Asked Questions

Browse expert answers to common questions about Titanium Grade 4 Bolts 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 bolts selection and pricing.
Titanium Grade 4 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). Medical and dental fasteners are supplied per ISO 5832-2 and ASTM F67. Custom thread forms (BSW, BSF, Whitworth) are available on request with 2-3 week lead time.
Use molybdenum disulfide or PTFE-based anti-seize compound (Molykote 1000, Loctite LB 8014, or Permatex Anti-Seize Lubricant). Apply to threads and nut bearing face to prevent galling. Avoid copper-based anti-seize, as it can cause galvanic corrosion with titanium.
Yes – Titanium Grade 4 bolts are completely resistant to seawater, brine, and body fluids, making them ideal for marine, offshore, and medical implant use. They are non-magnetic, biocompatible, and immune to pitting and crevice corrosion in both environments.
No formal MOQ for standard sizes (M6-M24) held ex-stock – we supply from single pieces for urgent requirements. Custom sizes and medical-grade fasteners have an MOQ of 5 kg or 50 pieces. 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