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Copper C12200 (DHP) Bolts Manufacturer & Exporter in India

Explore Copper C12200 (DHP) Bolts 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) Bolts?

Copper C12200 (DHP) bolts are high-conductivity, deoxidized copper fasteners manufactured from UNS C12200 bar stock, conforming to ASTM B152 and ASTM F468 standards. The DHP (Deoxidized High Phosphorus) grade contains 0.015-0.040% phosphorus, which enhances weldability and corrosion resistance, making these bolts ideal for applications requiring excellent electrical and thermal conductivity.

Copper C12200 bolts are non-magnetic, ductile, and resistant to hydrogen embrittlement, making them suitable for use in electrical, plumbing, and heat exchanger assemblies. They are widely specified for use in environments where non-sparking, corrosion-resistant, and highly conductive fasteners are required.

Quick Specifications

MaterialCopper C12200 (DHP)
UNS NumberC12200
DIN Number2.0090
Material StandardASTM B152 / ASTM F468
Bolt Standard (Metric)DIN 933 / DIN 931 / ISO 4017
Bolt Standard (Inch)ASME B18.2.1
Thread FormISO Metric / UNC / UNF
Diameter RangeM6-M48 / ¼"-2"
Tensile Strength210 MPa (30 ksi) min
Yield Strength69 MPa (10 ksi) min
HardnessMax 65 HRB
? 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) Nuts, 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) Nuts
Copper C12200 (DHP) Screws
Copper C12200 (DHP) Washers
Copper C12200 (DHP) Studs
Copper C12200 (DHP) Threaded Rods

Technical Data

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

Copper C12200 (DHP) 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 Copper C12200 (DHP) 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

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
Material StandardRequirement
ASTM B152Bar/rod - UNS C12200
ASTM F468Fastener mechanical
EN 12165Forgings for bolts
EN 10204 3.1Mill test certificate
EN 10204 3.2TPI-witnessed MTC

Material Chemistry

Copper C12200 (DHP) Chemical Composition

Copper C12200 (DHP) Bolts 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

ElementComposition (%)
Copper (Cu)99.9% min (including Ag)
Phosphorus (P)0.015-0.040%
Silver (Ag)0.002% max
Iron (Fe)0.05% max
Lead (Pb)0.05% max
Zinc (Zn)0.05% max
Total Impurities0.15% max
? All heats verified by NABL-accredited spectrometry. Conductivity and PMI available on request.

Why Copper C12200 (DHP) Alloy Composition Matters for Bolts

High Copper Content — Electrical & Thermal Conductivity
The 99.9% minimum copper content ensures exceptional electrical and thermal conductivity, making C12200 bolts ideal for busbar, earthing, and heat exchanger applications.
Phosphorus (0.015–0.040%) — Deoxidation & Weldability
Phosphorus acts as a deoxidizer, improving weldability and resistance to hydrogen embrittlement. This is critical for brazed or welded assemblies in plumbing and HVAC systems.
Low Impurities — Corrosion Resistance
Strict impurity limits ensure C12200 bolts resist dezincification and stress corrosion cracking, even in aggressive water and steam environments.

Fastener Performance

Copper C12200 (DHP) Bolts Mechanical Properties & Torque Reference

The table below lists mechanical properties and torque reference for Copper C12200 (DHP) Bolts per ASTM. Copper C12200 (DHP) bolts achieve 220 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)
M81086
M10201610
M12352815
M16705625
M2014011240
M2424019260
M30480384100
?? Anti-seize: Use copper-based anti-seize for threaded assemblies. Lubricated values assume K=0.18. Avoid over-torquing due to copper’s ductility.

Industry Applications

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

Copper C12200 (DHP) Bolts 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 C12200 (DHP) bolts are the preferred choice for busbar joints, transformer terminals, switchgear, and earthing systems due to their unmatched electrical conductivity and non-magnetic properties.
Used for flange and union connections in potable water, steam, and HVAC piping, C12200 bolts offer excellent corrosion resistance and weldability, especially in brazed or soldered assemblies.
Specified for tube sheet, channel cover, and flange bolting in shell-and-tube heat exchangers, condensers, and desalination plants where resistance to fresh and brackish water is critical.
Ideal for bolted assemblies in explosive or marine environments, such as shipboard electrical panels, battery rooms, and fuel handling systems, where non-sparking and corrosion resistance are essential.

Copper C12200 (DHP) Bolts Standards & International Certifications

Copper C12200 (DHP) 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, Lloyds Register or DNV certification, MIL specification documentation, and PMI (XRF) reports — available on request for all orders.
Standards
DIN 931 DIN 933 ISO 4014 ISO 4017 ASME B18.2.1 BS 1768 BS 3692 BS 4190 IS 1367
Certifications
ISO 9001:2015RoHS CompliantNABL LabPED 2014/68/EUMTC 3.1 / 3.2

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

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

Copper C12200 (DHP) Bolts — Frequently Asked Questions

Browse expert answers to common questions about Copper C12200 (DHP) Bolts 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) bolts selection and pricing.
Copper C12200 (DHP) bolts are available to DIN 933 (metric full thread), DIN 931 (metric partial thread), ISO 4014/4017, and ASME B18.2.1 (inch hex and heavy hex). Custom thread forms (UNC, UNF, BSW, BSPP) can be supplied on request. Stud bolts for flanges are available per ASME B16.5.
Use copper-based anti-seize compound (such as Molykote 1000 or Jet-Lube Kopr-Kote) for threaded assemblies. Apply to threads and nut bearing face to prevent galling and ease disassembly. Avoid nickel-based or zinc-based anti-seize, as these may cause galvanic corrosion with copper.
Yes – Copper C12200 (DHP) bolts offer 97% IACS conductivity and are the industry standard for busbar joints, transformer terminals, switchgear, and earthing systems. Their non-magnetic and corrosion-resistant properties make them ideal for electrical applications.
No formal MOQ for standard sizes (M8-M24) held ex-stock – we supply from single pieces for urgent requirements. Custom sizes or non-standard threads may require a 10 kg 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