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Copper C12200 (DHP) Nuts Manufacturer & Exporter in India

Explore Copper C12200 (DHP) Nuts Manufacturer & Exporter in India manufactured for demanding industrial applications with reliable strength, corrosion resistance and compliance with international standards.
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-100

Min Temp

260

Max Temp

🌡

260

Suitable for continuous service up to approximately 260°C under typical operating conditions.

⚡

220

Typical tensile strength around 220 MPa depending on product form and heat treatment.

🛡

Good

Good corrosion resistance in a wide range of industrial environments.

⚖

8.96

Typical density is approximately 8.96 g/cm³.

Product Overview

What are Copper C12200 (DHP) Nuts?

Copper C12200 (DHP) nuts are precision fasteners manufactured from deoxidized high phosphorus copper, known for its excellent thermal and electrical conductivity, as well as superior corrosion resistance in water and steam environments. These nuts are produced from ASTM B152 or B187 bar stock and are widely used in applications where non-sparking, non-magnetic, and high-conductivity properties are essential.

C12200 copper nuts are especially valued in heat exchanger, condenser, and plumbing systems due to their resistance to hydrogen embrittlement and stress corrosion cracking. Their high ductility and ease of fabrication make them suitable for both standard and custom fastening solutions in demanding industrial environments.

Quick Specifications

MaterialCopper C12200 (DHP)
UNS NumberC12200
DIN Number2.0090
Material StandardASTM B152 / B187
Nut Standard (Metric)DIN 934 / ISO 4032
Nut Standard (Inch)ASME B18.2.2
Thread FormISO Metric / UNC / UNF
Diameter RangeM6-M64 / ¼"-2½"
Tensile Strength205 MPa (30 ksi) min
Yield Strength69 MPa (10 ksi) min
Hardness50-80 HV
? All material certified by NABL-accredited laboratory. PMI and conductivity testing available on request.

Complete the Fastener Set

Other Copper C12200 (DHP) Fastener Products Available from RealBolt

RealBolt also manufactures the complete Copper C12200 (DHP) fastener range from certified copper alloy bar stock, including Copper C12200 (DHP) Bolts, Copper C12200 (DHP) Screws, Copper C12200 (DHP) Washers, Copper C12200 (DHP) Studs, and Copper C12200 (DHP) Threaded Rods. All Copper C12200 (DHP) fastener types are produced to ASTM with full EN 10204 MTC 3.1/3.2 documentation.
Copper C12200 (DHP) Bolts
Copper C12200 (DHP) Screws
Copper C12200 (DHP) Washers
Copper C12200 (DHP) Studs
Copper C12200 (DHP) Threaded Rods

Technical Data

Copper C12200 (DHP) Nuts Dimensions, Sizes & Thread Standards

Copper C12200 (DHP) Nuts are available in metric M6–M100 and inch ¼″–4″ as standard. Per DIN 934 (hex nut) / ISO 4032. Custom thread forms and sizes available. Inch dimensions per ASME B18.2.2. All Copper C12200 (DHP) nuts dimensions are verified against applicable DIN, ISO, and ASME B18 standards before

Hex Nut Dimensions - Metric (DIN 934 / ISO 4032)

Size (M)Pitch (mm)A/F (mm)Height (mm)
M61.0105.0
M81.25136.5
M101.5178.0
M121.751910.0
M162.02413.0
M202.53016.0
M243.03619.0
M303.54624.0
M364.05529.0
M424.56534.0
M485.07538.0
M565.58545.0
M646.09551.0

Dimensional & Material Standards

StandardCoversThread
DIN 934Hex nutsMetric
ISO 4032Hex nutsMetric
ASME B18.2.2Hex & heavy hex nutsUNC/UNF
BS 4190Hex nutsMetric/Imperial
Material StandardRequirement
ASTM B152Plate/sheet/bar - C12200
ASTM B187Rod/bar - C12200
EN 1652Copper and copper alloys
EN 10204 3.1Mill test certificate
EN 10204 3.2TPI-witnessed MTC

Material Chemistry

Copper C12200 (DHP) Chemical Composition

Copper C12200 (DHP) Nuts are produced from either tin-stabilized Naval Brass C46400 or aluminium-nickel-iron Aluminium Bronze C63000, with elemental limits per ASTM and MIL-B-24059. Tin (0.5–1%) in Naval Brass prevents dezincification in seawater; aluminium and nickel additions in Al Bronze C63000 provide non-sparking ATEX Zone 1 compliance.

Chemical Composition per ASTM B152/B187

ElementComposition (%)
Copper (Cu)99.90% min
Phosphorus (P)0.015-0.040%
Oxygen (O)0.02% max
Other Elements0.05% max (total)
? All heats verified by NABL-accredited spectrometry. Conductivity and PMI available on request.

Why Copper C12200 (DHP) Alloy Composition Matters for Nuts

High Copper Content — Conductivity & Ductility
The 99.90% minimum copper content ensures exceptional electrical and thermal conductivity, making C12200 nuts ideal for electrical, heat exchanger, and plumbing applications.
Phosphorus — Deoxidation & Weldability
Phosphorus acts as a deoxidizer, improving weldability and resistance to hydrogen embrittlement. This is critical for nuts used in steam, water, and gas service where reliability is paramount.
Low Oxygen — Corrosion Resistance
The low oxygen content prevents internal oxidation and stress corrosion cracking, ensuring long-term performance in aggressive and moist environments.

Fastener Performance

Copper C12200 (DHP) Nuts Mechanical Properties & Torque Reference

The table below lists mechanical properties and torque reference for Copper C12200 (DHP) Nuts per ASTM. Copper C12200 (DHP) nuts achieve 220 MPa tensile strength, with hardness, yield, and elongation values verified by NABL-accredited testing and reported in the EN 10204 MTC.

Nut SizeRecommended Torque (Nm)Clamp Load (kN)
M8107
M102011
M123516
M167028
M2014044
M2424063
M30480102
M36820147
?? Anti-seize: Use copper-based anti-seize for optimal thread protection. Lubricated values assume K=0.18. Avoid over-torquing due to copper’s ductility.

Industry Applications

Copper C12200 (DHP) Nuts Applications — Industries & End Uses

Copper C12200 (DHP) Nuts from RealBolt are specified across marine hardware, ATEX hazardous areas, and naval defence where good corrosion resistance and 220 MPa tensile strength are required for reliable fastener performance. Click each industry below for detailed application examples.
Copper Plumbing & Water Systems
Desalination & Marine Hardware
Copper C12200 nuts are the preferred choice for heat exchanger tube sheets, water-cooled condenser assemblies, and pressure vessel closures in power plants, chemical processing, and HVAC systems. Their non-sparking and corrosion-resistant properties make them ideal for potable water, desalination, and marine environments, as well as for electrical busbar and switchgear connections where high conductivity and reliability are critical.
DIN 2.0090EN 1652

Copper C12200 (DHP) Nuts Standards & International Certifications

Copper C12200 (DHP) Nuts 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, Lloyds Register or DNV certification, MIL specification documentation, and PMI (XRF) reports — available on request for all orders.
Standards
DIN 934 ISO 4032 ASME B18.2.2 BS 1768 BS EN ISO 4032 IS 1367
Certifications
Are Copper C12200 nuts suitable for potable water and marine use?

Buy Copper C12200 (DHP) Nuts from India's Leading Manufacturer — Get a Competitive Quote Today

Partner with RealBolt — India’s leading manufacturer of certified Copper C12200 (DHP) Nuts — 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

Copper C12200 (DHP) Nuts — Frequently Asked Questions

Browse expert answers to common questions about Copper C12200 (DHP) Nuts from RealBolt — covering alloy selection, ATEX Zone 1 compliance, dezincification resistance, ASTM standard, sizes, and EN 10204 documentation. Contact our technical team directly for project-specific guidance on Copper C12200 (DHP) nuts selection and pricing.
Standard metric and inch sizes are available ex-stock with no MOQ. Custom sizes or special thread forms may require a minimum order of 5 kg or 50 pieces. Volume discounts apply for larger orders.
Yes – we offer EN 10204 3.2 third-party inspection, NABL-accredited lab testing, and can provide conductivity, PMI, and corrosion test reports as required by project specifications.

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
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  • Mexico
  • Germany
  • UK
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  • Norway
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  • Turkey
  • UAE
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  • Qatar
  • Oman
  • Kuwait
  • Bahrain
  • South Africa
  • Egypt
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  • Malaysia
  • Indonesia
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