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Beryllium Copper C17200 Washers Manufacturer & Exporter in India

Explore Beryllium Copper C17200 Washers 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 Beryllium Copper C17200 Washers?

Beryllium Copper C17200 washers are high-performance spring washers, flat washers, and shims manufactured from copper-beryllium alloy conforming to UNS C17200 and ASTM B194. This alloy, containing 1.8-2.0% beryllium, is renowned for its exceptional combination of high strength, electrical and thermal conductivity, and non-magnetic properties. C17200 washers are precipitation-hardened to achieve tensile strengths up to 1380 MPa, making them ideal for demanding electrical, aerospace, and oilfield applications where both mechanical resilience and conductivity are critical.

These washers are specified for use in environments requiring spark resistance, galling resistance, and long-term dimensional stability under cyclic loading. Beryllium Copper C17200 washers are widely used in electrical contacts, circuit breakers, downhole tools, and precision instrumentation where stainless steel or phosphor bronze cannot meet the required fatigue or conductivity performance.

Quick Specifications

MaterialBeryllium Copper C17200
UNS NumberC17200
DIN Number2.1247
Material StandardASTM B194
Washer Standard (Metric)DIN 125 / DIN 127 / DIN 6796
Washer Standard (Inch)ASME B18.22.1
Hardness ConditionH (Hard), HT (Heat Treated)
Size RangeM2-M64 / #2-2.5"
Tensile Strength1100-1380 MPa
Yield Strength1000-1250 MPa
Hardness38-44 HRC
? All material certified by NABL-accredited laboratory. Electrical conductivity and hardness test reports available on request.

Complete the Fastener Set

Other Beryllium Copper C17200 Fastener Products Available from RealBolt

RealBolt also manufactures the complete Beryllium Copper C17200 fastener range from certified copper alloy bar stock, including Beryllium Copper C17200 Bolts, Beryllium Copper C17200 Nuts, Beryllium Copper C17200 Screws, Beryllium Copper C17200 Studs, and Beryllium Copper C17200 Threaded Rods. All Beryllium Copper C17200 fastener types are produced to ASTM with full EN 10204 MTC 3.1/3.2 documentation.
Beryllium Copper C17200 Bolts
Beryllium Copper C17200 Nuts
Beryllium Copper C17200 Screws
Beryllium Copper C17200 Studs
Beryllium Copper C17200 Threaded Rods

Technical Data

Beryllium Copper C17200 Washers Dimensions, Sizes & Thread Standards

Beryllium Copper C17200 Washers are available in metric M6–M100 and inch ¼″–4″ as standard. Per DIN 125 (flat), DIN 127 (spring), DIN 6796 (conical), and ASME B18.22.1. Custom OD/ID and thicknesses available. Metric and inch sizes supplied to drawing or standard.

Flat & Spring Washer Dimensions - Metric (DIN 125 / DIN 127)

Size (M)Inner Ø (mm)Outer Ø (mm)Thickness (mm)
M22.250.3
M44.390.8
M66.4121.6
M88.4161.6
M1010.5202.0
M1213.0242.5
M1617.0303.0
M2021.0373.0
M2425.0444.0
M3031.0564.0
M3637.0665.0
M4243.0786.0
M4849.0926.0
M5657.01057.0
M6465.01158.0

Dimensional & Material Standards

StandardCoversType
DIN 125Flat washersMetric
DIN 127Spring lock washersMetric
DIN 6796Conical spring washersMetric
ASME B18.22.1Plain & lock washersInch
ISO 7089Flat washersMetric
ISO 7090Chamfered washersMetric
Material StandardRequirement
ASTM B194Strip/bar - UNS C17200
ASTM B196Rod/wire - UNS C17200
EN 12164Bar/rod - CuBe2
EN 12168Profiles - CuBe2
EN 10204 3.1Mill test certificate
EN 10204 3.2TPI-witnessed MTC

Material Chemistry

Beryllium Copper C17200 Chemical Composition

Beryllium Copper C17200 Washers 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 B194

ElementComposition (%)
Copper (Cu)97.90% min
Beryllium (Be)1.80-2.00%
Cobalt + Nickel (Co+Ni)0.20% max
Iron (Fe)0.20% max
Lead (Pb)0.02% max
Other Elements0.20% max (total)
? All heats verified by NABL-accredited spectrometry. Electrical conductivity and beryllium content certified per batch.

Why Beryllium Copper C17200 Alloy Composition Matters for Washers

Be (1.8–2.0%) — High Strength & Fatigue Life
Beryllium addition enables C17200 washers to achieve tensile strengths up to 1380 MPa after age hardening, far exceeding phosphor bronze or brass. This is critical for spring washers and electrical contacts under cyclic load.
Cu (97.9% min) — Conductivity & Spark Resistance
High copper content ensures excellent electrical and thermal conductivity, making these washers ideal for electrical and electronic assemblies where low resistance and spark resistance are required.
Non-Magnetic & Corrosion Resistant
C17200 is non-magnetic and resists corrosion in marine, oilfield, and chemical environments, making it suitable for sensitive instrumentation and offshore applications.

Fastener Performance

Beryllium Copper C17200 Washers Mechanical Properties & Torque & Proof Load Reference

The table below lists mechanical properties and proof load reference for Beryllium Copper C17200 Washers per ASTM. Beryllium Copper C17200 washers achieve 220 MPa tensile strength, with hardness, yield, and elongation values verified by NABL-accredited testing and reported in the EN 10204 MTC.

Washer SizeRecommended Load (N)Deflection (mm)
M4 (Spring)1200.25
M6 (Spring)2500.35
M8 (Spring)4000.40
M12 (Spring)9000.55
M16 (Spring)18000.70
M20 (Spring)32000.90
?? Note: For electrical contact applications, ensure washer deflection does not exceed 75% of maximum to maintain spring life. For critical assemblies, consult engineering support for custom load-deflection curves.

Industry Applications

Beryllium Copper C17200 Washers Applications — Industries & End Uses

Beryllium Copper C17200 Washers 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.
Beryllium Copper C17200 washers are widely used in electrical switchgear, circuit breakers, busbar assemblies, and high-reliability connectors. Their high conductivity and spring properties ensure consistent contact pressure and low resistance over millions of cycles.
Used in aircraft electrical systems, avionics racks, and vibration-sensitive assemblies, these washers provide non-magnetic, corrosion-resistant performance and maintain preload under thermal cycling and vibration. Qualified to AMS 4533 and MIL-W-6712.
C17200 washers are specified for downhole tool assemblies, subsea connectors, and explosion-proof enclosures where spark resistance, galling resistance, and high fatigue life are critical. NACE MR0175 compliant for sour service.
Ideal for load cells, strain gauges, and sensitive measurement devices, these washers provide stable spring force and electrical continuity in compact, high-precision assemblies.

Beryllium Copper C17200 Washers Standards & International Certifications

Beryllium Copper C17200 Washers 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 125A DIN 126 DIN 127 ISO 7089 ISO 7090 ASME B18.21.1 BS 4320 IS 5372 IS 1367
Certifications
ISO 9001:2015NACE MR0175NABL LabPED 2014/68/EUMTC 3.1 / 3.2

Buy Beryllium Copper C17200 Washers from India's Leading Manufacturer — Get a Competitive Quote Today

Partner with RealBolt — India’s leading manufacturer of certified Beryllium Copper C17200 Washers — 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

Beryllium Copper C17200 Washers — Frequently Asked Questions

Browse expert answers to common questions about Beryllium Copper C17200 Washers 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 Beryllium Copper C17200 washers selection and pricing.
Beryllium Copper C17200 washers are available to DIN 125 (flat), DIN 127 (spring), DIN 6796 (conical), ISO 7089/7090, and ASME B18.22.1 (inch). Custom shapes and sizes can be manufactured to drawing or per EN 12164/12168. Material is supplied to ASTM B194 or AMS 4533 with full traceability.
Yes – C17200 washers offer high electrical conductivity (22-26% IACS), excellent spring properties, and are non-magnetic. They are widely used in switchgear, circuit breakers, and high-reliability connectors where consistent contact pressure and low resistance are critical.
Absolutely. C17200 is spark-resistant and non-magnetic, making it ideal for downhole tools, subsea connectors, and explosion-proof enclosures. Washers are NACE MR0175 compliant for sour service and resist galling and corrosion in harsh environments.
No formal MOQ for standard sizes (M4-M24) held ex-stock – we supply from single pieces for urgent requirements. Custom sizes or profiles have an MOQ of 5 kg. Bulk price breaks at 100 pcs, 500 pcs, and 1000 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