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Titanium Grade 7 Bolts Manufacturer & Exporter in India

Explore Titanium Grade 7 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 7 Bolts?

Titanium Grade 7 bolts are corrosion-resistant fasteners manufactured from titanium alloy UNS R52400, which is essentially Grade 2 titanium stabilized with a small addition of palladium (0.12-0.25%). This alloy is specified under ASTM B348 and ASTM B381 for bar and forging stock, and ASTM F467 for fastener mechanical properties. The presence of palladium dramatically enhances resistance to crevice corrosion and reducing acids, making these bolts ideal for highly aggressive chemical environments.

Titanium Grade 7 bolts are widely used in the chemical processing industry, desalination plants, and marine applications where superior corrosion resistance is required, especially in chloride and acidic media. They are non-magnetic, biocompatible, and maintain mechanical integrity across a wide temperature range.

Quick Specifications

MaterialTitanium Grade 7
UNS NumberR52400
DIN Number3.7235
Material StandardASTM B348
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 Strength345 MPa (50 ksi) min
Yield Strength275 MPa (40 ksi) min
HardnessMax 160 HB
? All material certified by NABL-accredited laboratory. PMI and palladium verification available on request.

Complete the Fastener Set

Other Titanium Grade 7 Fastener Products Available from RealBolt

RealBolt also manufactures the complete Titanium Grade 7 fastener range from certified titanium alloy bar stock, including Titanium Grade 7 Nuts, Titanium Grade 7 Screws, Titanium Grade 7 Washers, Titanium Grade 7 Studs, and Titanium Grade 7 Threaded Rods. All Titanium Grade 7 fastener types are produced to ASTM with full EN 10204 MTC 3.1/3.2 documentation.
Titanium Grade 7 Nuts
Titanium Grade 7 Screws
Titanium Grade 7 Washers
Titanium Grade 7 Studs
Titanium Grade 7 Threaded Rods

Technical Data

Titanium Grade 7 Bolts Dimensions, Sizes & Thread Standards

Titanium Grade 7 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 7 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 R52400
ASTM F467Fastener mechanical
ASME SB-348Forgings
EN 10204 3.1Mill test certificate
EN 10204 3.2TPI-witnessed MTC

Material Chemistry

Titanium Grade 7 Chemical Composition

Titanium Grade 7 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
Palladium (Pd)0.12-0.25
Iron (Fe)0.30 max
Oxygen (O)0.25 max
Carbon (C)0.08 max
Nitrogen (N)0.03 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. Palladium content confirmed on request.

Why Titanium Grade 7 Alloy Composition Matters for Bolts

Palladium (0.12–0.25%) — Crevice Corrosion Resistance
The addition of palladium to commercially pure titanium dramatically increases resistance to crevice corrosion, especially in reducing acids and chloride-rich environments. This makes Titanium Grade 7 bolts the preferred choice for critical chemical plant and desalination bolting.
Low Interstitials — Ductility & Weldability
Strict limits on oxygen, nitrogen, and carbon ensure excellent ductility and weldability, allowing Titanium Grade 7 bolts to be fabricated and installed without embrittlement or loss of corrosion resistance.
Biocompatibility & Non-Magnetic
Titanium Grade 7 is non-magnetic and biocompatible, making these bolts suitable for sensitive instrumentation, medical, and marine environments where metallic contamination or magnetic interference must be avoided.

Fastener Performance

Titanium Grade 7 Bolts Mechanical Properties & Torque Reference

The table below lists mechanical properties and torque reference for Titanium Grade 7 Bolts per ASTM. Titanium Grade 7 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)
M12383013
M16907231
M2018014450
M2431024872
M30620496115
M361080864167
M4217201376230
M4825502040310
?? Anti-galling: Use molybdenum-based or PTFE anti-seize. Lubricated values assume K=0.16. Avoid copper-based anti-seize to prevent galvanic corrosion with titanium.

Industry Applications

Titanium Grade 7 Bolts Applications — Industries & End Uses

Titanium Grade 7 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 7 bolts application details and RealBolt stock availability.
Titanium Grade 7 bolts are the industry standard for bolted closures, flange joints, and reactor vessel connections in chlor-alkali, hydrochloric acid, and hypochlorite production plants. Their resistance to crevice corrosion and reducing acids ensures long-term reliability in highly aggressive chemical environments.
Used for high-pressure flange connections, pump assemblies, and evaporator hardware in seawater desalination plants. Titanium Grade 7 bolts prevent crevice corrosion and chloride attack, outperforming stainless steel and other titanium grades in brine-rich conditions.
Ideal for bolting in pharmaceutical reactors, bioprocessing vessels, and clean-in-place (CIP) systems where both corrosion resistance and biocompatibility are required. Grade 7 bolts ensure product purity and equipment longevity.
Titanium Grade 7 bolts are specified for splash zone and submerged bolting in marine structures, seawater piping, and offshore platform supports where resistance to pitting and crevice corrosion is critical.

Titanium Grade 7 Bolts Standards & International Certifications

Titanium Grade 7 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 LabMTC 3.1 / 3.2

Buy Titanium Grade 7 Bolts from India's Leading Manufacturer — Get a Competitive Quote Today

Partner with RealBolt — India’s leading manufacturer of certified Titanium Grade 7 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 7 Bolts — Frequently Asked Questions

Browse expert answers to common questions about Titanium Grade 7 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 7 bolts selection and pricing.
Titanium Grade 7 bolts are manufactured to DIN 931 (partial thread), DIN 933 (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 and MSS SP-75. Custom thread forms and non-standard dimensions are available on request with short lead times.
Molybdenum-based or PTFE anti-seize compounds are recommended for Titanium Grade 7 bolts to prevent galling and facilitate disassembly. Avoid copper-based anti-seize to prevent galvanic corrosion. Apply a thin, even layer to threads and bearing surfaces; reduce torque by 15-20% when lubricated.
Yes – Titanium Grade 7 bolts offer outstanding resistance to pitting and crevice corrosion in seawater, brine, and chloride-rich environments, even under stagnant conditions. The palladium addition ensures superior performance compared to other titanium grades and stainless steels. No special coatings or cathodic protection are required.
No MOQ for standard sizes (M8-M36) available ex-stock; single-piece orders are accepted for urgent maintenance. Custom sizes or non-standard bolts may require a 5 kg minimum. Price breaks are available at 25, 100, and 250 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