C17510 Beryllium Copper

C17510 Beryllium Copper

680 MPa min
TENSILE STR
45–60% IACS
CONDUCTIVITY
ASTM B441
SPEC STD
C17510 beryllium copper, also known as nickel beryllium copper or CuNi2Be, is a high-conductivity copper-beryllium alloy supplied as rod, bar, tube, and plate under ASTM B441 and B534. It combines 45–60% IACS conductivity with moderate-to-high strength, making it ideal for resistance-welding electrodes, current-carrying springs, and thermal-management tooling.
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Product Overview

C17510 is a nickel beryllium copper whose properties come from 0.20–0.60% beryllium and 1.40–2.20% nickel in a copper-rich matrix. The nickel addition favors thermal and electrical conductivity over peak strength, so C17510 is the high-conductivity counterpart to the stronger C17200. It is produced to ASTM B441 (rod, bar, tube, wire) and ASTM B534 (strip, sheet, plate), and is classified RWMA Class 3.

In the TF00 (precipitation-hardened) condition C17510 reaches 680–900 MPa tensile strength, 550–690 MPa yield, and 10–25% elongation at 92–102 HRB, while retaining 45–60% IACS electrical conductivity and about 240 W/m·K thermal conductivity. It resists thermal fatigue and stress relaxation, is nonmagnetic, and machines very well. Corrosion resistance is similar to pure copper; it is not recommended for ammonium hydroxide or strong oxidizing acids.

Linsy Copper supplies C17510 beryllium copper as rod, bar, tube, and plate with low-MOQ custom sizes (typical lead time 10–60 days), in-house CNC machining and surface finishing, an MTR/MTC for every order, and optional SGS testing on request. Contact our Shenzhen team for a quotation within one hour.

Key Features

High conductivity (45–60% IACS) with 680–900 MPa strength after hardening
Excellent thermal conductivity (~240 W/m·K) for welding and molding tooling
Good resistance to stress relaxation and thermal fatigue
Very good machinability and fair weldability for complex parts
Nonmagnetic with corrosion resistance close to pure copper
Supplied to ASTM B441 / B534 (RWMA Class 3) in rod, bar, tube, and plate

Available Sizes

Copper Shape Thickness (mm) Width/Diameter (mm) Length (m)
Bar - Φ5-200 1-6
Wire - Φ0.05-10 Customize
Sheet 0.25-6 500-2500 1-6
Plate 6-200 200-3000 1-6
Strip 0.15-6 8-610 Customize
Tube OD: φ2-600; WT:φ0.2-100mm - 1-6
Coil 0.15-6 3-1250 1-6
Foil < 0.15 10-1350 Customize
Profile Customized Customize Customize

* Custom sizes available upon request. Contact our sales team for special requirements.

Technical Specifications

Precision data for engineering decisions. All values tested per ASTM standards.

Applications & Use Cases

Proven solutions across diverse industries. From aerospace to marine environments.

Frequently Asked Questions

Find answers to common questions about our products, services, and ordering process

C17510 uses a nickel addition that favors conductivity, giving 45–60% IACS at 680–900 MPa strength. C17200 is cobalt-bearing and reaches much higher strength (up to ~1500 MPa) but lower conductivity (~22–28% IACS). Choose C17510 when current or heat must flow; choose C17200 when peak strength rules.
Its high conductivity and resistance to thermal fatigue make it the standard for resistance-welding electrodes—spot-weld tips, seam-weld wheels, and projection-weld studs—where it resists mushrooming and maintains current density.
Yes. It is supplied in the TF00 precipitation-hardened condition and does not need further treatment. Properties come from solution treat plus age hardening; no response to simple annealing-to-strength changes.
ASTM B441 covers rod, bar, tube, and wire; ASTM B534 covers strip, sheet, and plate. It is also classified RWMA Class 3. The values quoted here follow ASTM B441 in the TF00 temper.
Linsy Copper supplies C17510 beryllium copper at low MOQ with a typical lead time of 10–60 days, ships an MTR/MTC with every order, and offers optional SGS testing on request.
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