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Hastelloy C2000 Bolts Manufacturer & Exporter in India

Explore Hastelloy C2000 Bolts Manufacturer & Exporter in India manufactured for demanding industrial applications with reliable strength, corrosion resistance and compliance with international standards.
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-200

Min Temp

1100

Max Temp

🌡

1100

Suitable for continuous service up to approximately 1100°C under typical operating conditions.

⚡

800

Typical tensile strength around 800 MPa depending on product form and heat treatment.

🛡

Excellent

Excellent corrosion resistance in a wide range of industrial environments.

⚖

8.9

Typical density is approximately 8.9 g/cm³.

Product Overview

What are Hastelloy C2000 Bolts?

Hastelloy C2000 bolts are nickel-chromium-molybdenum-copper alloy fasteners manufactured from UNS N06200 bar stock conforming to ASTM B574. The alloy’s exceptional corrosion resistance stems from its balanced composition of chromium (22-24%), molybdenum (15-17%), and copper (1.5-2.5%), delivering a minimum tensile strength of 690 MPa in the annealed condition through solid-solution strengthening.

The combination of high molybdenum and copper content gives Hastelloy C2000 a PREN exceeding 60, providing outstanding resistance to both oxidising and reducing acid environments – a dual capability no other single nickel alloy can match. Hastelloy C2000 bolts are specified for chemical process reactors, pharmaceutical equipment, and aggressive acid service flanges where alternating oxidising and reducing conditions would rapidly degrade standard C-276 or C-22 fasteners.

Quick Specifications

MaterialHastelloy C2000
UNS NumberN06200
DIN Number2.4675
Material StandardASTM B574
Bolt Standard (Metric)DIN 931 / DIN 933 / ISO 4014
Bolt Standard (Inch)ASME B18.2.1
Thread FormISO Metric / UNC / UNF
Diameter RangeM6-M100 / ¼"-4"
Tensile Strength690 MPa (100 ksi) min
Yield Strength283 MPa (41 ksi) min
HardnessMax 35 HRC / 241 HB
? All material certified by NABL-accredited laboratory. PMI available on request.

Complete the Fastener Set

Other Hastelloy C2000 Fastener Products Available from RealBolt

RealBolt also manufactures the complete Hastelloy C2000 fastener range from certified nickel-molybdenum-chromium superalloy bar stock, including Hastelloy C2000 Nuts, Hastelloy C2000 Screws, Hastelloy C2000 Washers, Hastelloy C2000 Studs, and Hastelloy C2000 Threaded Rods. All Hastelloy C2000 fastener types are produced to ASTM with full EN 10204 MTC 3.1/3.2 documentation.
Hastelloy C2000 Nuts
Hastelloy C2000 Screws
Hastelloy C2000 Washers
Hastelloy C2000 Studs
Hastelloy C2000 Threaded Rods

Technical Data

Hastelloy C2000 Bolts Dimensions, Sizes & Thread Standards

Hastelloy C2000 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 Hastelloy C2000 bolts dimensions are verified against applicable DIN, ISO, and ASME

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
M726.010545.01602000
M806.011550.01802500
M1006.014563.02003000

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 B574Bar/rod - UNS N06200
ASTM F468Fastener mechanical properties
NACE MR0175Sour service =35 HRC
EN 10204 3.1Mill test certificate
EN 10204 3.2TPI-witnessed MTC

Material Chemistry

Hastelloy C2000 Chemical Composition

Hastelloy C2000 Bolts derive their exceptional acid corrosion resistance from a precisely controlled nickel-molybdenum-chromium composition per ASTM. High molybdenum and tungsten content suppresses pitting and reducing-acid attack; ultra-low carbon (0.01% max) eliminates sensitization risk in welded assemblies. Full elemental composition is certified in the EN 10204 MTC supplied with every Hastelloy C2000 bolts order from RealBolt.

Chemical Composition per ASTM B574

ElementComposition (%)
Nickel (Ni)Balance (min 59%)
Chromium (Cr)22.0-24.0%
Molybdenum (Mo)15.0-17.0%
Copper (Cu)1.5-2.5%
Iron (Fe)3.0% max
Carbon (C)0.01% max
Manganese (Mn)0.50% max
Silicon (Si)0.08% max
Cobalt (Co)2.0% max
Tungsten (W)0.50% max
? All heats verified by NABL-accredited spectrometry. PMI available on request.

Why Hastelloy C2000 Alloy Composition Matters for Bolts

Mo (15–17%) — Reducing Acid Resistance
The elevated molybdenum content gives Hastelloy C2000 outstanding resistance to reducing acids including hydrochloric, hydrobromic, and dilute sulphuric acid — environments that rapidly attack lower-Mo alloys such as C-22 or 625 under bolt head bearing surfaces.
Cu (1.5–2.5%) — Oxidising Acid Resistance
Copper is the defining addition that separates C2000 from all other C-family alloys. It provides exceptional resistance to oxidising media including dilute nitric acid, wet chlorine, and mixed acid streams, making C2000 bolts the only single-alloy solution for processes that cycle between oxidising and reducing conditions.
Ultra-Low Carbon (0.01% max) — Sensitisation Prevention
The extremely low carbon ceiling eliminates carbide precipitation at grain boundaries during welding or elevated-temperature service. Hastelloy C2000 bolts retain full corrosion resistance in the heat-affected zone without post-weld heat treatment, critical for bolted reactor closures that are repeatedly opened and re-torqued.

Fastener Performance

Hastelloy C2000 Bolts Mechanical Properties & Torque Reference

The table below lists mechanical properties and torque reference for Hastelloy C2000 Bolts per ASTM. Hastelloy C2000 bolts achieve 800 MPa tensile strength, with hardness, yield, and elongation values verified by NABL-accredited testing and reported in the EN 10204 MTC.

Tightening Torque Reference - Hastelloy C2000 Hex Bolts

Bolt SizeDry (Nm)Lubricated (Nm)Clamp Load (kN)
M12756028
M1618014467
M20360288107
M24625500155
M3012501000247
M3621801744358
M4234702776493
M4851504120648
?? Anti-galling: Use nickel-based anti-seize (Molykote P-37 or Bostik Never-Seez Pure Nickel). Lubricated values assume K=0.15. Never use copper-based anti-seize on nickel alloys - galvanic incompatibility accelerates crevice corrosion.

Industry Applications

Hastelloy C2000 Bolts Applications — Industries & End Uses

Hastelloy C2000 Bolts from RealBolt are specified across chemical processing, pharmaceutical, oil and gas, and FGD where excellent corrosion resistance and 800 MPa tensile strength are required for reliable fastener performance. Click each industry below for detailed application examples. Select an industry below to see specific Hastelloy C2000 bolts application details and RealBolt stock availability.
Hastelloy C2000 stud bolts and hex bolts are the preferred fastener for reactor closure flanges, agitator nozzle connections, and heat exchanger channel covers in processes handling mixed oxidising and reducing acid streams. The unique Cu addition provides corrosion resistance in dilute nitric, hydrochloric, and sulphuric acid environments that no single C-family alloy previously covered.
Flange bolt sets for pharmaceutical reactor vessels, crystalliser closures, and solvent recovery column connections where ultra-high purity, freedom from metallic contamination, and resistance to organic acid by-products are mandatory. Hastelloy C2000 bolts meet FDA material traceability requirements and are compatible with CIP/SIP sterilisation cycles.
Hex bolts and stud bolt sets for chlorine dioxide bleaching stage piping flanges, washer drum connections, and bleach plant heat exchanger covers. The high Mo and Cu content resists hypochlorite, chlorine dioxide, and acidic bleach filtrate that cause rapid stress corrosion cracking in duplex stainless and C-276 fasteners.
Flange bolt sets for FGD absorber tower internals, spray header connections, and recirculation pump nozzle flanges in coal-fired power plant scrubbers. Hastelloy C2000 bolts resist the highly corrosive combination of dilute sulphuric acid, chloride ions, and fluoride species present in FGD slurry at elevated temperatures.

Hastelloy C2000 Bolts Standards & International Certifications

Hastelloy C2000 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, PMI (XRF), NACE MR0175/ISO 15156, and NABL-accredited lab reports — available on request for all orders.
Standards
DIN 931 DIN 933 ISO 4014 ISO 4017 ASME B18.2.1 IS 1364 IS 1367
Certifications
ISO 9001:2015NACE MR0175NABL LabPED 2014/68/EUMTC 3.1 / 3.2

Buy Hastelloy C2000 Bolts from India's Leading Manufacturer — Get a Competitive Quote Today

Partner with RealBolt — India’s leading manufacturer of certified Hastelloy C2000 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.
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Answers for Buyers

Hastelloy C2000 Bolts — Frequently Asked Questions

Browse expert answers to common questions about Hastelloy C2000 Bolts from RealBolt — covering acid corrosion resistance, NACE MR0175 compliance, ASTM standards, available sizes, and MTC documentation. Contact our technical team directly for project-specific guidance on Hastelloy C2000 bolts selection and pricing.
Hastelloy C2000 (UNS N06200) is the only C-family alloy that contains copper (1.5-2.5%), which provides resistance to oxidising acids such as dilute nitric acid and wet chlorine in addition to the reducing acid resistance common to all C-family alloys. C-276 (N10276) and C-22 (N06022) lack copper and perform poorly in oxidising acid environments. C2000 also has a higher chromium content (22-24%) than C-276 (14.5-16.5%), giving it superior resistance to oxidising corrosion. For processes that alternate between oxidising and reducing conditions, C2000 bolts are the only single-alloy solution.
Hastelloy C2000 fasteners are machined from bar stock conforming to ASTM B574 (UNS N06200), which covers hot-finished and cold-drawn nickel-molybdenum-chromium-copper alloy rod and bar. Plate and sheet material is covered by ASTM B575. The corresponding ASME pressure vessel code standard is ASME SB-574. All bar is supplied with EN 10204 3.1 mill test certificates as standard, with 3.2 TPI-witnessed certificates available on request for nuclear and critical process applications.
Yes – Hastelloy C2000 offers excellent resistance to hydrochloric acid across a wide concentration and temperature range. The high molybdenum content (15-17%) provides the primary resistance mechanism in HCl, while the low carbon content (0.01% max) prevents sensitisation and intergranular attack. C2000 outperforms C-276 in HCl at concentrations above 10% and temperatures above 60°C. For bolted connections on HCl reactor flanges, heat exchanger covers, and acid storage vessel nozzles, C2000 stud bolt sets with matching C2000 heavy hex nuts are the recommended specification.
In oxidising atmospheres, Hastelloy C2000 maintains adequate oxidation resistance up to approximately 1040°C. In reducing or sulphur-bearing atmospheres, the practical service limit is lower at around 760°C due to sulphidation attack. For bolted flange connections in continuous high-temperature service above 500°C, creep relaxation of the bolt load must be considered and initial torque values should be increased by 15-20% to compensate. Consult our engineering team for high-temperature bolted joint calculations specific to your operating conditions.

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  • Ahmedabad
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