Copper C11000 (ETP) Studs Manufacturer & Exporter in India

Explore Copper C11000 (ETP) Studs Manufacturer & Exporter in India manufactured for demanding industrial applications with reliable strength, corrosion resistance and compliance with international standards.

-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 C11000 (ETP) Studs?

Copper C11000 (ETP) studs are high-conductivity, oxygen-free electrical grade copper fasteners manufactured from electrolytic tough pitch copper bar conforming to ASTM B187 and ASTM B152. With a minimum copper content of 99.90%, these studs offer exceptional electrical and thermal conductivity, making them the preferred choice for electrical busbar connections, switchgear assemblies, and earthing systems.

C11000 copper studs are non-magnetic, corrosion-resistant, and exhibit excellent ductility, allowing for easy installation and reliable performance in demanding electrical and industrial environments. They are widely specified for power distribution, transformer, and grounding applications where maximum conductivity and minimal voltage drop are critical.

Quick Specifications

Material	Copper C11000 (ETP)
UNS Number	C11000
DIN Number	2.0060
Material Standard	ASTM B187 / ASTM B152
Stud Standard (Metric)	DIN 976 / ISO 898-1
Stud Standard (Inch)	ASME B18.31.2
Thread Form	ISO Metric / UNC / UNF
Diameter Range	M6-M48 / ¼"-2"
Tensile Strength	220 MPa (32 ksi) min
Yield Strength	69 MPa (10 ksi) min
Hardness	50 HV (max)

? All material certified by NABL-accredited laboratory. Electrical conductivity test reports available on request.

Complete the Fastener Set

Other Copper C11000 (ETP) Fastener Products Available from RealBolt

RealBolt also manufactures the complete Copper C11000 (ETP) fastener range from certified copper alloy bar stock, including Copper C11000 (ETP) Bolts, Copper C11000 (ETP) Nuts, Copper C11000 (ETP) Screws, Copper C11000 (ETP) Washers, and Copper C11000 (ETP) Threaded Rods. All Copper C11000 (ETP) fastener types are produced to ASTM with full EN 10204 MTC 3.1/3.2 documentation.

Copper C11000 (ETP) Bolts

Copper C11000 (ETP) Nuts

Copper C11000 (ETP) Screws

Copper C11000 (ETP) Washers

Copper C11000 (ETP) Threaded Rods

Technical Data

Copper C11000 (ETP) Studs Dimensions, Sizes & Thread Standards

Copper C11000 (ETP) Studs are available in metric M6–M100 and inch ¼″–4″ as standard. Per DIN 976 (metric) and ASME B18.31.2 (inch). Custom lengths and thread forms available. Metric and inch dimensions supplied as per project requirements. All Copper C11000 (ETP) studs dimensions are verified against applicable DIN, ISO, and

Stud Dimensions - Metric (DIN 976)

Size (M)	Pitch (mm)	Length Range (mm)	Thread Length (mm)
M6	1.0	20-200	12-40
M8	1.25	25-250	16-50
M10	1.5	30-300	20-60
M12	1.75	35-400	24-80
M16	2.0	40-500	32-100
M20	2.5	50-600	40-120
M24	3.0	60-800	48-160
M30	3.5	80-1000	64-200
M36	4.0	100-1200	72-240
M42	4.5	120-1500	84-300
M48	5.0	140-2000	96-400

Dimensional & Material Standards

Standard	Covers	Thread
DIN 976	Threaded rods & studs	Metric
ASME B18.31.2	Continuous thread studs	UNC/UNF
ISO 898-1	Mechanical properties	Metric
ISO 965	Thread tolerances	Metric

Material Standard	Requirement
ASTM B187	Bar/rod - C11000
ASTM B152	Plate/sheet - C11000
EN 13601	Copper rod for electrical use
EN 10204 3.1	Mill test certificate
EN 10204 3.2	TPI-witnessed MTC

Material Chemistry

Copper C11000 (ETP) Chemical Composition

Copper C11000 (ETP) Studs 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

Element	Composition (%)
Copper (Cu)	99.90% min
Oxygen (O)	0.04% max
Silver (Ag)	0.002% max
Other Elements	0.03% max (total)

? All heats verified by NABL-accredited spectrometry. Electrical conductivity test reports available on request.

Why Copper C11000 (ETP) Alloy Composition Matters for Studs

99.90% Cu — Maximum Conductivity

The high copper content ensures electrical conductivity of at least 101% IACS, making C11000 studs ideal for busbar, transformer, and switchgear connections where minimal resistance and voltage drop are essential.

Low Oxygen Content

Oxygen content below 0.04% prevents embrittlement and ensures excellent ductility and workability, allowing for easy threading and forming of studs without cracking.

Trace Silver & Impurities

Strict control of silver and other trace elements guarantees consistent electrical and mechanical properties, ensuring reliable performance in critical electrical installations.

Fastener Performance

Copper C11000 (ETP) Studs Mechanical Properties & Torque Reference

The table below lists mechanical properties and torque reference for Copper C11000 (ETP) Studs per ASTM. Copper C11000 (ETP) studs achieve 220 MPa tensile strength, with hardness, yield, and elongation values verified by NABL-accredited testing and reported in the EN 10204 MTC.

Stud Size	Recommended Torque (Nm)	Clamp Load (kN)
M8	8	3.5
M10	13	5.5
M12	22	8.5
M16	55	15.5
M20	110	24.5
M24	190	35.5
M30	370	56.5

?? Note: Copper studs are soft and prone to thread galling. Use a suitable electrical contact lubricant and avoid over-torquing. Values are for guidance only.

Industry Applications

Copper C11000 (ETP) Studs Applications — Industries & End Uses

Copper C11000 (ETP) Studs 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.

Electrical Power Distribution

Switchgear & Busbar Connections

Copper C11000 (ETP) studs are widely used for connecting copper busbars in switchgear, panel boards, and power distribution assemblies. Their high conductivity ensures minimal voltage drop and reliable current transfer in critical electrical systems.

Transformer & Earthing Systems

Studs made from C11000 copper are specified for transformer terminal connections, earthing grids, and lightning protection systems, providing corrosion resistance and long-term conductivity in both indoor and outdoor installations.

Railway & Traction Equipment

Used in railway electrification, traction substations, and signaling equipment, copper studs ensure robust, low-resistance connections for high-current applications and demanding service conditions.

Industrial Control Panels

Copper C11000 (ETP) Studs Standards & International Certifications

Copper C11000 (ETP) Studs 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 938 DIN 939 DIN 976-1 ASME B18.31.2 IS 1367

Certifications

Need Copper C11000 (ETP) Studs? Get a Competitive Price Today.

Buy Copper C11000 (ETP) Studs from India's Leading Manufacturer — Get a Competitive Quote Today

Partner with RealBolt — India’s leading manufacturer of certified Copper C11000 (ETP) Studs — 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.

Answers for Buyers

Copper C11000 (ETP) Studs — Frequently Asked Questions

Browse expert answers to common questions about Copper C11000 (ETP) Studs 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 C11000 (ETP) studs selection and pricing.

Copper C11000 (ETP) studs are available to DIN 976 (metric threaded rods and studs), ASME B18.31.2 (inch continuous thread studs), and ISO 898-1 for mechanical properties. Custom thread forms (UNC, UNF, BSW) and lengths can be supplied to project specifications.

Can Copper C11000 (ETP) studs be used for high-current busbar connections?

Yes, C11000 (ETP) copper studs are ideal for high-current busbar and switchgear connections due to their 101% IACS electrical conductivity and low resistance. They are the industry standard for power distribution, transformer, and earthing applications.

Do Copper C11000 (ETP) studs require special installation practices?

Because copper is soft, use a suitable electrical contact lubricant to prevent thread galling and ensure proper torque. Avoid over-tightening, and use flat washers to distribute load and prevent deformation of busbars or terminals.

What is the minimum order quantity (MOQ) for Copper C11000 (ETP) studs?

No formal MOQ for standard sizes (M8-M24) held ex-stock. Custom sizes or special thread forms may require a minimum order of 10 kg. Sample orders and small quantities are accepted for urgent requirements.

Can you supply Copper C11000 (ETP) studs with test certificates?

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

Product Categories

Popular

Material Categories