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Chromium Copper C18200 Threaded Rods Manufacturer & Exporter in India

Explore Chromium Copper C18200 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 Chromium Copper C18200 Threaded Rods?

Chromium Copper C18200 threaded rods are high-conductivity copper alloy fasteners manufactured from UNS C18200 bar stock, conforming to ASTM B166 and RWMA Class 2 standards. This alloy contains approximately 0.6-1.2% chromium, which is precipitation-hardened to deliver a unique combination of high electrical and thermal conductivity with superior mechanical strength and wear resistance.

Chromium Copper C18200 threaded rods are widely specified for resistance welding electrodes, electrical connectors, and high-temperature bolted assemblies where both conductivity and strength are critical. Their excellent resistance to softening at elevated temperatures makes them ideal for demanding industrial and electrical applications.

Quick Specifications

MaterialChromium Copper C18200
UNS NumberC18200
DIN Number2.1293
Material StandardASTM B166 / RWMA Class 2
Threaded Rod Standard (Metric)DIN 976 / ISO 898-1
Threaded Rod Standard (Inch)ASME B18.31.3
Thread FormISO Metric / UNC / UNF
Diameter RangeM6-M64 / ¼"-2½"
Tensile Strength= 415 MPa (60 ksi)
Yield Strength= 345 MPa (50 ksi)
Hardness95-130 HB
? All material certified by NABL-accredited laboratory. Positive Material Identification (PMI) available on request.

Complete the Fastener Set

Other Chromium Copper C18200 Fastener Products Available from RealBolt

RealBolt also manufactures the complete Chromium Copper C18200 fastener range from certified copper alloy bar stock, including Chromium Copper C18200 Bolts, Chromium Copper C18200 Nuts, Chromium Copper C18200 Screws, Chromium Copper C18200 Washers, and Chromium Copper C18200 Studs. All Chromium Copper C18200 fastener types are produced to ASTM with full EN 10204 MTC 3.1/3.2 documentation.
Chromium Copper C18200 Bolts
Chromium Copper C18200 Nuts
Chromium Copper C18200 Screws
Chromium Copper C18200 Washers
Chromium Copper C18200 Studs

Technical Data

Chromium Copper C18200 Threaded Rods Dimensions, Sizes & Thread Standards

Chromium Copper C18200 Threaded Rods are available in metric M6–M100 and inch ¼″–4″ as standard. Per DIN 976 (metric) and ASME B18.31.3 (inch). Custom lengths available in 10mm increments. Inch sizes supplied up to 3 meters. All Chromium Copper C18200 threaded rods dimensions are verified against applicable DIN, ISO, and

Threaded Rod Dimensions - Metric (DIN 976)

Size (M)Pitch (mm)Rod Dia (mm)Standard Length (mm)Max Length (mm)
M61.0610003000
M81.25810003000
M101.51010003000
M121.751210003000
M162.01610003000
M202.52010003000
M243.02410003000
M303.53010003000
M364.03610003000
M424.54210003000
M485.04810003000
M565.55610003000
M646.06410003000

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 B166Bar/rod - UNS C18200
RWMA Class 2Resistance welding
EN 12163Copper and copper alloys
EN 10204 3.1Mill test certificate
EN 10204 3.2TPI-witnessed MTC

Material Chemistry

Chromium Copper C18200 Chemical Composition

Chromium Copper C18200 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 B166

ElementComposition (%)
Copper (Cu)98.85% min
Chromium (Cr)0.60-1.20%
Iron (Fe)0.10% max
Silicon (Si)0.10% max
Other Elements0.05% max (each)
? All heats verified by NABL-accredited spectrometry. PMI available on request.

Why Chromium Copper C18200 Alloy Composition Matters for Threaded Rods

High Copper Content — Electrical & Thermal Conductivity
The 98.85% minimum copper ensures excellent electrical (=80% IACS) and thermal conductivity, making C18200 threaded rods ideal for electrical and resistance welding applications.
Chromium (0.6–1.2%) — Strength & Softening Resistance
Chromium addition provides significant precipitation hardening, increasing tensile strength and resistance to softening at elevated temperatures, critical for threaded rods in high-heat environments.
Low Impurity Levels
Strict control of iron, silicon, and other elements ensures consistent mechanical and electrical properties, as required for precision fastener applications.

Fastener Performance

Chromium Copper C18200 Threaded Rods Mechanical Properties & Torque Reference

The table below lists mechanical properties and torque reference for Chromium Copper C18200 Threaded Rods per ASTM. Chromium Copper C18200 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 SizeDry (Nm)Lubricated (Nm)Clamp Load (kN)
M12554422
M161108840
M2022017663
M2438030492
M30750600148
M3613001040215
M4221001680295
M4832002560400
?? Anti-seize: Use copper-based anti-seize for optimal conductivity and to prevent galling. Lubricated values assume K=0.16. Avoid nickel-based anti-seize for electrical applications.

Industry Applications

Chromium Copper C18200 Threaded Rods Applications — Industries & End Uses

Chromium Copper C18200 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.
Chromium Copper C18200 threaded rods are the industry standard for assembling resistance welding machines, electrode holders, and secondary circuit connections due to their high conductivity and strength at elevated temperatures.
Used in busbar assemblies, switchgear, and transformer connections where high current-carrying capacity and mechanical integrity are required. C18200 rods ensure reliable, low-resistance bolted joints.
Ideal for securing furnace internals, heat treatment fixtures, and high-temperature jigs, as C18200 maintains strength and conductivity up to 400°C without significant softening.
Employed in overhead line hardware, current-carrying clamps, and bolted connectors for railway electrification, where both mechanical and electrical performance are critical.

Chromium Copper C18200 Threaded Rods Standards & International Certifications

Chromium Copper C18200 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 9001:2015RWMA CertifiedNABL LabPED 2014/68/EUMTC 3.1 / 3.2

Buy Chromium Copper C18200 Threaded Rods from India's Leading Manufacturer — Get a Competitive Quote Today

Partner with RealBolt — India’s leading manufacturer of certified Chromium Copper C18200 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.
022-6743-7972
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Answers for Buyers

Chromium Copper C18200 Threaded Rods — Frequently Asked Questions

Browse expert answers to common questions about Chromium Copper C18200 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 Chromium Copper C18200 threaded rods selection and pricing.
Chromium Copper C18200 threaded rods are supplied to DIN 976 (metric), ASME B18.31.3 (inch), and ISO 898-1 for mechanical properties. Material conforms to ASTM B166 and RWMA Class 2. Custom thread forms (BSW, BSF, Whitworth) are available on request with short lead times.
Use copper-based anti-seize compound (such as Loctite LB 8008 or Jet-Lube Kopr-Kote) for optimal conductivity and to prevent galling. Apply to threads and nut bearing surfaces. Avoid nickel-based anti-seize for electrical applications, as it may reduce conductivity.
Yes – C18200 maintains mechanical strength and electrical conductivity up to 400°C, making it ideal for furnace fixtures, resistance welding, and other high-temperature bolted assemblies. Its resistance to softening is superior to pure copper and most other copper alloys.
No formal MOQ for standard sizes (M8-M36) held in stock – we supply from single rods for urgent maintenance. Custom diameters or lengths may require a 10 kg minimum. Quantity price breaks are available at 25, 100, and 250 rods.

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