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Detailed size range
Thickness range:
Cold rolled sheet: 0.1–4.5 mm (the lower limit of cold rolled sheet thickness is 0.1 mm and the upper limit is 4.5 mm).
Hot rolled sheet: 1–100 mm (the upper limit of the spot sheet thickness is 100 mm, and the hot rolling process can cover thicker specifications).
Thickness can be customized up to 250 mm for special needs.
Width range:
Conventional width is 260–2000 mm, of which the spot sheet width is usually ≤2000 mm.
Length range:
Standard length is 1000–10000 mm, and some cold rolled sheets are 800–2200 mm in length.
Can be customized according to needs, up to 45000 mm.
International Standards
Material Standards:
ASTM B441-1985: Specifies the chemical composition and performance requirements of copper-beryllium alloy forgings, applicable to C17510 plate.
ASTM B534-991 (1992, 1993 editions): Covers the manufacturing and acceptance standards for copper-nickel-beryllium alloys.
BS EN 13599:2014: Copper plates and strips for electrical purposes, specifying dimensional tolerances of 0.05–25 mm thickness and 10–1250 mm width.
Chemical composition (mass fraction %)
Copper (Cu): Balance, usually accounting for more than 97%.
Berryllium (Be): Most literature ranges from 0.2% to 0.6%
Nickel (Ni): There are two common ranges, one is 1.4% to 2.2%, and the other is 2.2% to 2.8%
Other elements: May contain trace amounts of cobalt (Co, 0.3% to 2.5%), iron (Fe, ≤0.15%), silicon (Si, ≤0.2%), aluminum (Al, ≤0.15%), etc.
Mechanical properties
The properties are significantly affected by the heat treatment state. The main data are as follows:
Tensile strength
After precipitation heat treatment: 690-895 MPa, some tests show 883 MPa (room temperature).
After hard treatment: 760-965 MPa, up to 130 ksi (about 896 MPa).
Yield strength (0.2% offset)
After precipitation heat treatment: 550-690 MPa, measured value 758 MPa (room temperature).
After hard treatment: 650-870 MPa, up to 752 MPa.
Elongation
Generally 10%-25%, the specific value varies with the treatment state, such as 16% in precipitation state.
Hardness
HRB: 92-102, hard state can reach HRB 95-102.
HV: Rockwell hardness HRB ≥ 90°HV.
Physical properties
Density: 8.75-8.83 g/cm³.
Electrical conductivity: 45%-60% IACS
Thermal conductivity: 172-240 W/(m·K).
Elastic modulus: 133-138 GPa.
Coefficient of thermal expansion: 18×10⁻⁶/°C (20-200°C).
C17510 copper plate production process and product advantages:
Production process:
Smelting and casting
Use submerged flow transfer technology for smelting to reduce the cooling of molten metal and smoke emission.
The casting process uses horizontal continuous casting or vertical continuous casting technology to improve the yield rate.
Heat treatment strengthening
After solution treatment (to make the beryllium element evenly dissolved) and aging hardening (precipitation of strengthening phase), the material strength, hardness and conductivity are significantly improved. For example, after precipitation heat treatment, the tensile strength can reach 690-965MPa, and the conductivity is increased to 45-48% IACS.
Hot and cold processing
Hot rolling uses large ingot rolling technology, and cold rolling uses AGC closed-loop thickness control and roller technology to optimize the yield rate and reduce energy consumption.
It can be processed into various forms such as plates, bars, strips, etc., and supports customized cutting (such as thickness 1-50mm, width 600-1250mm, etc.).
Quality inspection
During the production process, internal defects are detected by flaw detectors, hardness testers are used to ensure material uniformity, and SGS reports and material certificates are provided.
Product advantages:
High strength and high hardness
After precipitation heat treatment, the hardness can reach HRC 92-102, and the tensile strength can reach 760-965MPa, which is better than ordinary copper alloys and some steels, and is suitable for high-load molds, electrodes and other scenes.
Excellent electrical and thermal conductivity
The electrical conductivity is as high as 45-60% IACS, and the thermal conductivity is close to pure copper, which can quickly dissipate heat, shorten the injection molding cycle and reduce product deformation.
Corrosion resistance and high temperature resistance
It performs well in corrosive media such as seawater and sulfuric acid, with a softening temperature of 700°C, suitable for high-temperature welding and submarine cables.
Special functional characteristics
Non-magnetic: suitable for precision electronic equipment and anti-magnetic interference occasions.
Spark-free characteristics: no sparks are generated during collision, suitable for flammable and explosive environments such as petrochemicals and mines.
Anti-adhesion: reduce the adhesion between the mold and the workpiece, and improve demolding efficiency.
Processing adaptability
Performance can be flexibly adjusted through cold processing (such as quarter hard state to full hard state) and heat treatment to support the manufacture of complex shaped parts.
Application areas:
Mold manufacturing: die casting molds, injection molds, stretching molds, etc., to improve demolding speed and life.
Electronic appliances: connectors, relays, switch contacts and other high-precision parts.
Welding and industrial equipment: resistance welding electrodes, welding rollers, high-temperature fasteners, etc.
Special environments: submarine cable repeaters, explosion-proof tools, aerospace components, etc.
Q1:Do you provide samples? Is it free or extra?
A1:Yes, we can provide samples free of charge and the customer will pay the freight.
Q2:What if I don't have export experience ?
A2:We have reliable forwarder agent which can ship items to you by sea/air/Express to your doorstep. Any way, we will help you choose the most suitable shipping service.
Q3:How long is your lead time?
A3:If it is in stock, it is usually 5-10 days. Or, if there is no inventory, 15 days, depending on the quantity.
Q4:What are your terms of payment?
A4:30% T/T deposit in advance, 70% T/T balance within 5 days after B/L copy, 100%.Irrevocable L/C at sight, 100% Irrevocable L/C after receive B/L 30-120 days, O/A.
Q5:How is your technical support?
A5:We provide lifetime online support through Whatsapp/ Skype/ Wechat/ Email. Any problem after delivery, we will offer you call anytime.
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