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Hastelloy C2000 Screws Manufacturer & Exporter in India

Explore Hastelloy C2000 Screws 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 Screws?

Hastelloy C2000 screws 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 outstanding resistance to both oxidising and reducing acid environments in a single alloy.

With a PREN exceeding 55, Hastelloy C2000 screws outperform standard C-276 and C-22 grades in mixed acid service and are specified for chemical process equipment, pharmaceutical reactors, and aggressive industrial environments where no single-purpose alloy is adequate. These screws meet NACE MR0175/ISO 15156 requirements for sour-service applications and are widely used in flange connections, pressure vessel closures, and heat exchanger assemblies worldwide.

Quick Specifications

MaterialHastelloy C2000
UNS NumberN06200
DIN Number2.4675
Material StandardASTM B574
Screw Standard (Metric)DIN 912 / DIN 933 / ISO 4762
Screw Standard (Inch)ASME B18.3 / ASME B18.6.3
Thread FormISO Metric / UNC / UNF
Diameter RangeM4-M64 / #10-2½"
Tensile Strength690 MPa (100 ksi) min
Yield Strength310 MPa (45 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 Bolts, Hastelloy C2000 Nuts, 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 Bolts
Hastelloy C2000 Nuts
Hastelloy C2000 Washers
Hastelloy C2000 Studs
Hastelloy C2000 Threaded Rods

Technical Data

Hastelloy C2000 Screws Dimensions, Sizes & Thread Standards

Hastelloy C2000 Screws are available in metric M6–M100 and inch ¼″–4″ as standard. Per DIN 912 (socket head cap screws) / DIN 933 (hex full thread) / ISO 4762. Custom lengths in 5mm increments. Inch dimensions available per ASME B18.3 and B18.6.3.

Socket Head Cap Screw Dimensions - Metric (DIN 912 / ISO 4762)

Size (M)Pitch (mm)Head Dia (mm)Head Ht (mm)Socket (mm)Min L (mm)Max L (mm)
M40.77.04.03.0680
M50.88.55.04.08100
M61.010.06.05.010150
M81.2513.08.06.012200
M101.516.010.08.016250
M121.7518.012.010.020300
M162.024.016.014.025400
M202.530.020.017.030500
M243.036.024.019.040600
M303.545.030.022.050800
M364.054.036.027.0601000
M424.563.042.032.0801000
M485.072.048.036.01001200
M565.584.056.041.01201500
M646.096.064.046.01402000

Dimensional & Material Standards

StandardCoversThread
DIN 912Socket head cap screwsMetric
DIN 933Hex screws, full threadMetric
ISO 4762Socket head cap screwsMetric
ISO 4017Hex head screws, full threadMetric
ASME B18.3Socket head cap screwsUNC/UNF
ASME B18.6.3Machine screwsUNC/UNF
MSS SP-75High-pressure fastenersUNC
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 Screws 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 screws 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 Screws

Mo (15–17%) — Superior Reducing Acid Resistance
The elevated molybdenum content in Hastelloy C2000 provides outstanding resistance to reducing acids including hydrochloric, sulfuric, and phosphoric acid — environments that rapidly attack lower-Mo alloys. This makes C2000 screws the preferred choice for chemical reactor closures and acid process equipment.
Cu (1.5–2.5%) — Oxidising Acid Resistance
The addition of copper uniquely extends C2000's resistance into oxidising acid environments such as dilute nitric acid and mixed acid streams. This dual capability — handling both oxidising and reducing media — is the defining advantage of C2000 over C-276 and C-22 in mixed-service applications.
Ultra-Low Carbon (0.01% max) — Sensitisation Prevention
The extremely low carbon ceiling prevents carbide precipitation at grain boundaries during welding or elevated-temperature service. Hastelloy C2000 screws retain full intergranular corrosion resistance in the as-welded condition without requiring post-weld heat treatment.

Fastener Performance

Hastelloy C2000 Screws Mechanical Properties & Torque Reference

The table below lists mechanical properties and torque reference for Hastelloy C2000 Screws per ASTM. Hastelloy C2000 screws 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 Screws

Screw SizeDry (Nm)Lubricated (Nm)Clamp Load (kN)
M6976
M8221812
M10443522
M12766136
M1618514868
M20365292107
M24630504155
M3012601008246
?? Anti-galling: Use nickel-based anti-seize (Molykote P-37 or equivalent). Lubricated values assume K=0.15. Never use copper-based anti-seize on nickel alloys - galvanic incompatibility accelerates corrosion at the thread interface.

Industry Applications

Hastelloy C2000 Screws Applications — Industries & End Uses

Hastelloy C2000 Screws 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 screws application details and RealBolt stock availability.
Hastelloy C2000 socket head cap screws and hex screws are the preferred fastener for chemical reactor vessel closures, agitator shaft seals, and heat exchanger channel covers handling mixed oxidising and reducing acid streams. The alloy’s unique dual resistance to both HCl and HNO3 environments eliminates the need for separate alloy selections across a single process train.
C2000 screws are specified for pharmaceutical reactor closures, filter press assemblies, and high-purity process equipment where contamination risk from corrosion products is unacceptable. The alloy’s resistance to organic acids, chlorinated solvents, and aggressive cleaning agents (CIP/SIP cycles) makes it the fastener of choice for GMP-compliant process equipment.
Machine screws and hex screws in Hastelloy C2000 are used in FGD absorber tower internals, spray header connections, and mist eliminator frames where concentrated sulfuric acid mist, chloride ions, and elevated temperatures combine to destroy standard stainless steel and even C-276 fasteners in accelerated service.
C2000 screws are specified for bleach plant equipment including chlorine dioxide reactor covers, washer drum connections, and bleach tower access panels. The alloy resists hypochlorite, chlorine dioxide, and acidic bleach filtrate – environments that cause rapid stress corrosion cracking in austenitic stainless steels.

Hastelloy C2000 Screws Standards & International Certifications

Hastelloy C2000 Screws 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 912 DIN 913 DIN 914 DIN 915 DIN 916 DIN 6912 ISO 4762 ISO 10642 ASME B18.3 EN ISO 4762 IS 1367
Certifications
ISO 9001:2015NACE MR0175NABL LabPED 2014/68/EUMTC 3.1 / 3.2

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

Partner with RealBolt — India’s leading manufacturer of certified Hastelloy C2000 Screws — 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 Screws — Frequently Asked Questions

Browse expert answers to common questions about Hastelloy C2000 Screws 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 screws selection and pricing.
Hastelloy C2000 screws are available in socket head cap screws (DIN 912 / ISO 4762), hex head screws (DIN 933 / ISO 4017), pan head machine screws, countersunk screws (DIN 965), and set screws (DIN 913/914/916). Drive styles include hex socket (Allen), Torx, Phillips, and slotted. Inch sizes are manufactured per ASME B18.3 (socket head) and ASME B18.6.3 (machine screws). Custom drive forms and head configurations are available on request with 15 working day lead time.
Hastelloy C2000 offers a distinct advantage over both C-276 and C-22 in mixed acid service. C-276 excels in reducing environments but has limited oxidising acid resistance. C-22 improves oxidising resistance but at the cost of some reducing acid performance. C2000’s copper addition (1.5-2.5%) bridges this gap, providing superior resistance to both oxidising and reducing media simultaneously. For screws in mixed-service chemical reactors or processes alternating between acid types, C2000 is the technically correct single-alloy solution.
Yes – Hastelloy C2000 maintains useful mechanical properties up to approximately 1040°C in oxidising atmospheres and up to 760°C in reducing atmospheres. The alloy resists oxidation and scaling at elevated temperatures, making C2000 screws suitable for furnace fixtures, high-temperature reactor closures, and thermal processing equipment. For continuous service above 500°C, consult our engineering team regarding creep allowances and appropriate torque de-rating factors.
Standard sizes (M6-M24) held ex-stock carry no formal MOQ – single-piece supply is available for emergency maintenance and plant shutdown requirements. Custom sizes, special drive forms, and non-standard lengths have a minimum order of 10 kg. Quantity price breaks apply at 50 pieces, 200 pieces, and 500 pieces. Full kitting services (screws, washers, and nuts as matched-heat sets) are available for pressure vessel and heat exchanger applications with a single EN 10204 3.1 MTC covering the complete set.

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
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Countries We Export To:

  • US
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