High-Purity Copper Alloy Continuous Casting Billet

Product Specifications

Technical details and manufacturing context for High-Purity Copper Alloy Continuous Casting Billet

Definition

A high-purity copper alloy billet manufactured through continuous casting processes, serving as a critical semi-finished material in non-ferrous metal production. This billet provides uniform microstructure and consistent mechanical properties essential for subsequent rolling, extrusion, or forging operations. It enables efficient production of copper alloy rods, bars, and profiles with minimal material waste and energy consumption. The continuous casting method ensures superior surface quality and dimensional accuracy compared to traditional ingot casting. The billet is available in diameters ranging from 100 to 400 mm, with a copper content of at least 99.95% per GB/T 5231. Mechanical properties include tensile strength of 200–350 MPa (ASTM E8), elongation of 20–45%, and Brinell hardness of 40–90 HB (ISO 6506). Electrical conductivity is at least 100% IACS (IEC 60028), and density ranges from 8.9 to 8.94 g/cm³ (ASTM B187). Surface roughness is ≤1.6 Ra μm (ISO 4287), length tolerance is ±5 mm (ISO 2768), and operating temperature range is -20 to 200°C. Impurity content is limited to ≤0.05% (GB/T 5231). Weight per meter varies from 70 to 1120 kg/m based on diameter and density. These values are reference ranges for directory purposes; actual specifications must be confirmed with the legal manufacturer or supplier for specific applications. The billet is suitable for further processing into rods, bars, and profiles used in electrical, automotive, and industrial applications. Verification of material properties and compliance with standards is essential before procurement.

Working Principle

Molten copper alloy is continuously poured into a water-cooled mold, where it solidifies at the mold walls and is withdrawn at a controlled rate. The solidification front progresses inward, forming a solid billet with a consistent cross-section. The billet is then cut to required lengths using saws or shears. This process ensures uniform grain structure and minimal porosity, resulting in high-quality billets for downstream processing.

Common Materials

Copper (Cu), Zinc (Zn), Tin (Sn), Nickel (Ni)

Technical Parameters

Parameter	Typical range	Notes & selection driver
Copper ContentRequired	99.95 %	Minimum copper percentage in alloy compositionGB/T 5231
Billet DiameterRequired	100–400 mm	Nominal diameter of round billet or equivalent dimension
Tensile StrengthRequired	200–350 MPa	Minimum tensile strength at room temperatureASTM E8
Electrical ConductivityRequired	≥100 % IACS	Electrical conductivity relative to International Annealed Copper StandardIEC 60028
Surface Roughness	≤1.6 Ra μm	Maximum surface roughness for as-cast conditionISO 4287
Length Tolerance	±5 mm	Allowable deviation from specified billet lengthISO 2768
Operating Temperature	-20–200 °C	Continuous service range
Density	8.9–8.94 g/cm³	Varies with alloy compositionASTM B187
Hardness	40–90 HB	Brinell hardness rangeISO 6506
Elongation	20–45 %	Minimum elongation for ductilityASTM E8
Impurity Content	≤0.05 %	Total impurities excluding oxygenGB/T 5231
Weight per Meter	70–1120 kg/m	Calculated from diameter and density

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

Alloy Matrix Part
Primary metallic structure providing mechanical properties

Material: Copper-based solid solution
Grain Structure Part
Crystalline arrangement affecting material properties

Material: Columnar and equiaxed grains
Surface Oxide Layer Part
Thin protective layer formed during casting

Material: Copper oxide (CuO/Cu2O)

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for High-Purity Copper Alloy Continuous Casting Billet.

Manufacturers of High-Purity Copper Alloy Continuous Casting Billet

Manufacturer profiles associated with High-Purity Copper Alloy Continuous Casting Billet.

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Frequently Asked Questions

What is the typical diameter range for this billet?

The nominal diameter or equivalent dimension ranges from 100 to 400 mm, as listed in the directory. Confirm the exact size with the supplier for your application.

What standards apply to the copper content?

The minimum copper content is 99.95% per GB/T 5231. This standard is a reference for verification; actual compliance must be confirmed with the manufacturer.

Can this billet be used for electrical applications?

The electrical conductivity is at least 100% IACS per IEC 60028, making it suitable for conductive applications. However, verify the specific conductivity and other properties with the supplier.

How is the billet's surface quality controlled?

The maximum surface roughness is ≤1.6 Ra μm per ISO 4287. This is achieved through the continuous casting process, but final surface quality should be verified upon delivery.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification

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pressure:	Atmospheric to 0.5 MPa (during casting), ambient (finished product)
other spec:	Continuous casting speed: 0.5-3.0 m/min, billet diameter: 100-400 mm, surface roughness: ≤25 μm Ra
temperature:	800-1100°C (casting), ambient-400°C (post-casting handling)