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Copper C10100 (OFE) Threaded Rods Manufacturer & Exporter in India

Explore Copper C10100 (OFE) Threaded Rods 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 C10100 (OFE) Threaded Rods?

Copper C10100 (OFE) threaded rods are high-purity, oxygen-free electronic grade copper fasteners manufactured from UNS C10100 bar stock conforming to ASTM B187 and ASTM F68. With a minimum copper content of 99.99% and extremely low oxygen (=0.0005%), these rods offer exceptional electrical and thermal conductivity, making them ideal for critical electrical, vacuum, and cryogenic applications.

OFE copper threaded rods are non-magnetic, highly ductile, and exhibit excellent resistance to hydrogen embrittlement and stress corrosion cracking. They are widely specified for use in high-vacuum systems, particle accelerators, and electrical busbar assemblies where maximum conductivity and purity are essential.

Quick Specifications

MaterialCopper C10100 (OFE)
UNS NumberC10100
DIN Number2.0040
Material StandardASTM B187 / ASTM F68
Rod Standard (Metric)DIN 976 / ISO 898-1
Rod Standard (Inch)ASME B18.31.3
Thread FormISO Metric / UNC / UNF
Diameter RangeM6-M64 / ¼"-2½"
Tensile Strength220 MPa (32 ksi) min
Yield Strength70 MPa (10 ksi) min
Hardness45 HV max
? All material certified by NABL-accredited laboratory. Conductivity and purity test reports available on request.

Complete the Fastener Set

Other Copper C10100 (OFE) Fastener Products Available from RealBolt

RealBolt also manufactures the complete Copper C10100 (OFE) fastener range from certified copper alloy bar stock, including Copper C10100 (OFE) Bolts, Copper C10100 (OFE) Nuts, Copper C10100 (OFE) Screws, Copper C10100 (OFE) Washers, and Copper C10100 (OFE) Studs. All Copper C10100 (OFE) fastener types are produced to ASTM with full EN 10204 MTC 3.1/3.2 documentation.
Copper C10100 (OFE) Bolts
Copper C10100 (OFE) Nuts
Copper C10100 (OFE) Screws
Copper C10100 (OFE) Washers
Copper C10100 (OFE) Studs

Technical Data

Copper C10100 (OFE) Threaded Rods Dimensions, Sizes & Thread Standards

Copper C10100 (OFE) Threaded Rods are available in metric M6–M100 and inch ¼″–4″ as standard. Per DIN 976 (metric) / ASME B18.31.3 (inch). Custom lengths available up to 3 meters. Threads supplied as ISO metric coarse, fine, or UNC/UNF as specified.

Threaded Rod Dimensions - Metric (DIN 976)

Size (M)Pitch (mm)Core Dia (mm)Length Range (mm)
M61.04.8100-2000
M81.256.6100-2000
M101.58.2100-2000
M121.759.9100-2000
M162.013.6100-3000
M202.517.1100-3000
M243.020.7100-3000
M303.526.1100-3000
M364.031.4100-3000
M424.536.7100-3000
M485.042.0100-3000
M565.549.0100-3000
M646.056.0100-3000

Dimensional & Material Standards

StandardCoversThread
DIN 976Threaded rods, metricMetric
ASME B18.31.3Threaded rods, inchUNC/UNF
ISO 898-1Mechanical propertiesMetric
ISO 965-1Thread tolerancesMetric
Material StandardRequirement
ASTM B187Bar/rod - C10100
ASTM F68OFE copper fasteners
EN 13601Copper rod for electrical
EN 10204 3.1Mill test certificate
EN 10204 3.2TPI-witnessed MTC

Material Chemistry

Copper C10100 (OFE) Chemical Composition

Copper C10100 (OFE) Threaded Rods 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 B187

ElementComposition (%)
Copper (Cu)99.99% min
Oxygen (O)0.0005% max
Silver (Ag)0.002% max
Other Elements0.001% max (each)
? All heats verified by NABL-accredited spectrometry. Conductivity and purity test reports available on request.

Why Copper C10100 (OFE) Alloy Composition Matters for Threaded Rods

OFE Purity — Maximum Conductivity
The 99.99% copper content and ultra-low oxygen ensure electrical conductivity =101% IACS, making these rods ideal for busbars, earthing, and high-frequency applications where voltage drop must be minimized.
Low Oxygen — Vacuum & Hydrogen Service
Oxygen-free copper prevents embrittlement and outgassing in vacuum, cryogenic, and hydrogen-rich environments, ensuring long-term reliability in scientific and semiconductor equipment.
Trace Impurities — Controlled for Reliability
Strict limits on silver and other elements prevent unwanted alloying effects, preserving the ductility and corrosion resistance required for critical fastener applications.

Fastener Performance

Copper C10100 (OFE) Threaded Rods Mechanical Properties & Torque Reference

The table below lists mechanical properties and torque reference for Copper C10100 (OFE) Threaded Rods per ASTM. Copper C10100 (OFE) threaded rods achieve 220 MPa tensile strength, with hardness, yield, and elongation values verified by NABL-accredited testing and reported in the EN 10204 MTC.

Rod SizeRecommended Torque (Nm)Clamp Load (kN)
M883.5
M10145.5
M12248.5
M166015.5
M2012024.5
M2421035.5
M3041056.5
?? Soft Material: Use low torque values to prevent thread deformation. Lubricate with dielectric grease for electrical applications.

Industry Applications

Copper C10100 (OFE) Threaded Rods Applications — Industries & End Uses

Copper C10100 (OFE) Threaded Rods 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.
C10100 threaded rods are the preferred choice for busbar connections, switchgear, and transformer assemblies where maximum conductivity and low resistance joints are critical for power transmission and distribution.
OFE copper threaded rods are specified for ultra-high vacuum (UHV) chambers, cryostats, and particle accelerator assemblies due to their low outgassing, high purity, and resistance to hydrogen embrittlement.
Used for fastening in semiconductor fabrication tools, wafer processing equipment, and cleanroom environments where metallic contamination must be minimized and electrical continuity is essential.
Ideal for radio frequency (RF) enclosures, waveguide flanges, and microwave cavity connections where high conductivity and non-magnetic properties are required for signal integrity.

Copper C10100 (OFE) Threaded Rods Standards & International Certifications

Copper C10100 (OFE) Threaded Rods 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 975 DIN 976-1 ASME B18.31.2 IS 1367
Certifications
ISO 9001:2015RoHS CompliantNABL LabPED 2014/68/EUMTC 3.1 / 3.2

Buy Copper C10100 (OFE) Threaded Rods from India's Leading Manufacturer — Get a Competitive Quote Today

Partner with RealBolt — India’s leading manufacturer of certified Copper C10100 (OFE) Threaded Rods — 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

Copper C10100 (OFE) Threaded Rods — Frequently Asked Questions

Browse expert answers to common questions about Copper C10100 (OFE) Threaded Rods 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 C10100 (OFE) threaded rods selection and pricing.
Copper C10100 (OFE) threaded rods are supplied to DIN 976 (metric), ASME B18.31.3 (inch), and ISO 898-1 for mechanical properties. Material conforms to ASTM B187 and ASTM F68 for high-purity copper. Custom thread forms (BSW, BSF, Whitworth) are available on request with short lead times.
OFE copper is soft – always use low torque values and consider using a suitable dielectric or anti-seize lubricant. Avoid over-tightening, especially in electrical assemblies. For repeated assembly/disassembly, consider using a copper alloy nut or a plated nut to reduce wear.
Yes – the ultra-low oxygen content and high purity of C10100 (OFE) copper make these rods ideal for ultra-high vacuum (UHV), cryogenic, and hydrogen-rich environments. They exhibit minimal outgassing and resist embrittlement, making them the standard for scientific and semiconductor vacuum systems.
No formal MOQ for standard metric and inch sizes (M8-M24) held ex-stock – we supply from single pieces for R&D and maintenance. Custom diameters and lengths have an MOQ of 5 kg. Quantity price breaks at 25 pcs, 100 pcs, and 250 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