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Zeron 100 Studs Manufacturer & Exporter in India

Explore Zeron 100 Studs 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 Zeron 100 Studs?

Zeron 100 studs are high-performance super duplex stainless steel fasteners manufactured from UNS S32760 bar stock, conforming to ASTM A276 and ASTM A479. With a balanced austenite-ferrite microstructure and alloying additions of 25% chromium, 7% nickel, 3.6% molybdenum, and 0.7% tungsten, Zeron 100 studs deliver exceptional resistance to pitting, crevice, and stress corrosion cracking in aggressive chloride and sour environments.

These studs are specified for critical bolted joints in offshore, petrochemical, and desalination applications where standard duplex or 316 stainless steel fasteners fail. Zeron 100’s PREN > 40 ensures long-term durability in seawater, brine, and acidic process streams, making them the preferred choice for high-integrity flange connections and pressure vessel closures.

Quick Specifications

MaterialZeron 100 (Super Duplex Stainless Steel)
UNS NumberS32760
DIN Number1.4501
Material StandardASTM A276 / ASTM A479
Stud Standard (Metric)DIN 976 / ISO 898-1
Stud Standard (Inch)ASME B16.5 / B18.31.2
Thread FormISO Metric / UNC / UNF
Diameter RangeM6-M100 / ¼"-4"
Tensile Strength750 MPa (109 ksi) min
Yield Strength570 MPa (83 ksi) min
HardnessMax 28 HRC / 290 HB
? All Zeron 100 material certified by NABL-accredited laboratory. PMI and ferrite content verification available on request.

Complete the Fastener Set

Other Zeron 100 Fastener Products Available from RealBolt

RealBolt also manufactures the complete Zeron 100 fastener range from certified super duplex stainless steel bar stock, including Zeron 100 Bolts, Zeron 100 Nuts, Zeron 100 Screws, Zeron 100 Washers, and Zeron 100 Threaded Rods. All Zeron 100 fastener types are produced to ASTM with full EN 10204 MTC 3.1/3.2 documentation.
Zeron 100 Bolts
Zeron 100 Nuts
Zeron 100 Screws
Zeron 100 Washers
Zeron 100 Threaded Rods

Technical Data

Zeron 100 Studs Dimensions, Sizes & Thread Standards

Zeron 100 Studs are available in metric M6–M100 and inch ¼″–4″ as standard. Per DIN 976 (metric threaded rods), ASME B16.5 (flange studs), and ISO 898-1. Custom cut lengths available in 5mm increments. Inch sizes per ASME B18.31.2. All Zeron 100 studs dimensions conform to applicable DIN, ISO, and ASME B18 standards.

Stud Dimensions - Metric (DIN 976)

Size (M)Pitch (mm)Thread Length (mm)Min L (mm)Max L (mm)
M61.018202000
M81.2522202000
M101.526202000
M121.7530202000
M162.038302000
M202.546402000
M243.054502000
M303.566602000
M364.078702000
M424.590802000
M485.0102902000
M565.51181002000
M646.01341102000
M726.01501202000
M806.01661302000
M1006.02061502000

Dimensional & Material Standards

StandardCoversThread
DIN 976Threaded rods & studsMetric
ASME B16.5Stud bolts for flangesUNC
ASME B18.31.2Continuous thread studsUNC/UNF
ISO 898-1Mechanical propertiesMetric
Material StandardRequirement
ASTM A276Bar/rod - UNS S32760
ASTM A479Forged bar/rod - S32760
NACE MR0175Sour service =28 HRC
EN 10204 3.1Mill test certificate
EN 10204 3.2TPI-witnessed MTC

Material Chemistry

Zeron 100 Chemical Composition

Zeron 100 Studs are manufactured from a high-alloy ferritic-austenitic steel containing chromium (24–26%), molybdenum (3.5–5%), and nitrogen (0.24–0.32%) per ASTM. These precise elemental limits produce PREN ≥ 40 — confirming seawater pitting immunity — and deliver the 550 MPa minimum yield strength required for NORSOK M-630 subsea qualification.

Chemical Composition per ASTM A276/A479

ElementComposition (%)
Chromium (Cr)24.0-26.0%
Nickel (Ni)6.0-8.0%
Molybdenum (Mo)3.0-4.0%
Tungsten (W)0.5-1.0%
Copper (Cu)0.5-1.0%
Nitrogen (N)0.2-0.3%
Silicon (Si)1.0% max
Manganese (Mn)1.0% max
Carbon (C)0.03% max
Phosphorus (P)0.03% max
Sulphur (S)0.01% max
Iron (Fe)Balance
? All heats verified by NABL-accredited spectrometry. Ferrite content and PMI available on request.

Why Zeron 100 Alloy Composition Matters for Studs

Cr (24–26%) — Pitting & Crevice Resistance
High chromium content, combined with molybdenum and tungsten, gives Zeron 100 studs a PREN > 40, ensuring outstanding resistance to pitting and crevice corrosion in seawater and chloride-rich environments.
N (0.2–0.3%) — Strength & SCC Resistance
Nitrogen increases yield strength and improves resistance to stress corrosion cracking, making Zeron 100 studs reliable for high-pressure, high-chloride, and sour service bolted joints.
Balanced Duplex Structure
The austenite-ferrite balance ensures high mechanical strength and toughness, while maintaining corrosion resistance even after welding or hot working.

Fastener Performance

Zeron 100 Studs Mechanical Properties & Torque Reference

The table below lists mechanical properties and torque reference for Zeron 100 Studs per ASTM. Zeron 100 studs achieve 620 MPa tensile strength, with hardness, yield, and elongation values verified by NABL-accredited testing and reported in the EN 10204 MTC.

Stud SizeDry (Nm)Lubricated (Nm)Clamp Load (kN)
M121108838
M1627021685
M20540432136
M24950760200
M3019001520320
M3633002640460
M4252004160630
M4878006240830
?? Anti-galling: Use molybdenum-based or PTFE anti-seize. Lubricated values assume K=0.16. Avoid copper-based anti-seize for maximum corrosion resistance.

Industry Applications

Zeron 100 Studs Applications — Industries & End Uses

Zeron 100 Studs from RealBolt are specified across subsea oil and gas, FPSOs, desalination, and offshore where very good corrosion resistance and 620 MPa tensile strength are required for reliable fastener performance. Click each industry below for detailed application examples.
Zeron 100 studs and nuts are the industry standard for ASME B16.5/B16.47 flange connections, subsea manifolds, and topside piping in offshore oil & gas platforms. NACE MR0175 compliant for H2S sour service and specified in Shell DEP and Total GS EP standards.
Studs for high-pressure reverse osmosis (RO) vessels, seawater intake flanges, and brine discharge piping where high chloride and pH cycling demand superior pitting and crevice corrosion resistance.
Flange stud bolt sets for heat exchangers, pressure vessel closures, and reactor nozzles in hydrochloric acid, caustic, and mixed halide process streams where 316L and standard duplex fail.
Studs for autoclave closures, solvent extraction (SX) plant piping, and acid leach reactors where high strength and resistance to sulphuric acid and chloride attack are critical.

Zeron 100 Studs Standards & International Certifications

Zeron 100 Studs 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 3.2 (third-party), NACE MR0175/ISO 15156, NORSOK M-630, Charpy impact certificates, and PMI (XRF) reports — available on request for all orders.
Standards
DIN 938 DIN 939 DIN 976-1 ASME B18.31.2 IS 1364 IS 1367 IS 12427
Certifications
ISO 9001:2015NACE MR0175NABL LabPED 2014/68/EUMTC 3.1 / 3.2

Buy Zeron 100 Studs from India's Leading Manufacturer — Get a Competitive Quote Today

Partner with RealBolt — India’s leading manufacturer of certified Zeron 100 Studs — 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

Zeron 100 Studs — Frequently Asked Questions

Browse expert answers to common questions about Zeron 100 Studs from RealBolt — covering PREN ≥ 40, NORSOK M-630, NACE MR0175, ASTM A182 F53/F55, sizes, and EN 10204 3.2 third-party documentation. Contact our technical team directly for project-specific guidance on Zeron 100 studs selection and pricing.
Zeron 100 stud bolts are available to DIN 976 (metric threaded rods), ASME B16.5 (flange studs), ASME B18.31.2 (inch continuous thread), and ISO 898-1 for mechanical properties. Custom thread forms (BSW, BSF, Whitworth, BSPP) and cut lengths are available on request with typical lead times of 2-3 weeks.
Use molybdenum-based or PTFE anti-seize compound (such as Molykote 1000 or Loctite LB 8009) on Zeron 100 studs and nuts. Apply to threads and nut bearing faces to prevent galling and facilitate disassembly. Avoid copper-based anti-seize to maintain maximum corrosion resistance in chloride and sour environments.
Yes – Zeron 100’s PREN > 40 and balanced duplex structure provide outstanding resistance to pitting, crevice, and chloride stress corrosion cracking in seawater, brine, and desalination plant service. No special coating or cathodic protection is required for most marine applications.
No formal MOQ for standard sizes (M12-M36) held ex-stock – we supply from single pieces for urgent maintenance. Custom sizes and cut lengths have an MOQ of 10 kg. 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