High-Purity Magnesium Alloy Billet

Product Specifications

Technical details and manufacturing context for High-Purity Magnesium Alloy Billet

Definition

High-purity magnesium alloy billet is a semi-finished industrial material produced through direct chill casting or continuous casting processes. It serves as the primary feedstock for extrusion, forging, and rolling operations in the non-ferrous metals industry. This material offers excellent strength-to-weight ratio, corrosion resistance, and machinability for aerospace, automotive, and electronics applications. The controlled microstructure and chemical composition ensure consistent mechanical properties in downstream manufacturing processes. The billet is available in diameters from 100 to 500 mm and lengths from 500 to 6000 mm, with custom sizes on request. The chemical composition is characterized by a minimum magnesium content of 99.9% per ASTM B93, with alloying elements such as aluminum, zinc, and manganese. Mechanical properties include a tensile strength of 220–280 MPa, yield strength of 150–200 MPa, and elongation of 8–15%, all per ASTM B557. The grain size is specified as ASTM 5–8 per ASTM E112, and surface roughness is ≤3.2 Ra per ISO 4287. Dimensional tolerances on diameter are ±1.0 mm per ISO 2768-m. Physical properties include a density of 1.74–1.85 g/cm³ per ISO 1183, a melting point of 650–680 °C, thermal conductivity of 50–160 W/(m·K) per ASTM E1225, and electrical conductivity of 15–25 MS/m per IEC 60028. Weight per unit length ranges from 1.5 to 30 kg/m. These values are typical reference ranges; actual values depend on the specific alloy composition and manufacturing process. Always verify model-specific values and standards with the legal manufacturer or supplier before procurement.

Working Principle

Molten magnesium alloy is solidified into standardized cross-sectional shapes through controlled cooling in casting equipment, creating homogeneous semi-finished products ready for secondary processing. The direct chill or continuous casting process ensures a fine-grained, uniform microstructure, which is critical for consistent mechanical properties in downstream operations. The billet's dimensions and surface quality are controlled to meet specified tolerances, allowing for efficient material utilization and predictable behavior during extrusion, forging, or rolling.

Common Materials

Magnesium (Mg), Aluminum (Al), Zinc (Zn), Manganese (Mn)

Technical Parameters

Parameter	Typical range	Notes & selection driver
Chemical Composition PurityRequired	≥99.9 %	Minimum magnesium content percentageASTM B93
Tensile StrengthRequired	220–280 MPa	Minimum ultimate tensile strengthASTM B557
Yield StrengthRequired	150–200 MPa	Minimum yield strength at 0.2% offsetASTM B557
ElongationRequired	8–15 %	Minimum percentage elongation at breakASTM B557
Grain Size	ASTM 5–8 μm	Maximum average grain diameterASTM E112
Surface Roughness	≤3.2 Ra	Maximum surface roughness valueISO 4287
Diameter	100–500 mm	Custom sizes available
Length	500–6000 mm	Cut to order
Tolerance on Diameter	±1.0 mm	Tighter on requestISO 2768-m
Density	1.74–1.85 g/cm³	Depends on alloying elementsISO 1183
Melting Point	650–680 °C	Typical for magnesium alloys
Thermal Conductivity	50–160 W/(m·K)	Varies with compositionASTM E1225
Electrical Conductivity	15–25 MS/m	Relative to copperIEC 60028
Weight per Unit Length	1.5–30 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 structural material providing mechanical properties

Material: Magnesium-based alloy
Grain Refiner Additives Optional Part
Controls microstructure formation during solidification

Material: Zirconium or carbon-based compounds
Surface Oxide Layer Part
Natural protective coating against corrosion

Material: Magnesium oxide (MgO)

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for High-Purity Magnesium Alloy Billet.

Manufacturers of High-Purity Magnesium Alloy Billet

Manufacturer profiles associated with High-Purity Magnesium Alloy Billet.

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Frequently Asked Questions

What is the typical purity of this magnesium alloy billet?

The minimum magnesium content is 99.9% per ASTM B93. However, the actual purity may vary depending on the specific alloy composition and manufacturing process. Always confirm the exact chemical composition with the supplier.

What are the available dimensions for this billet?

The billet is available in diameters from 100 to 500 mm and lengths from 500 to 6000 mm, with custom sizes on request. Dimensional tolerances on diameter are ±1.0 mm per ISO 2768-m. Verify exact dimensions and tolerances with the manufacturer.

What mechanical properties can be expected?

Typical tensile strength is 220–280 MPa, yield strength is 150–200 MPa, and elongation is 8–15%, all per ASTM B557. These are reference ranges; actual values depend on the alloy and heat treatment. Confirm with the supplier for your specific application.

What standards apply to this product?

Relevant standards include ASTM B93 for chemical composition, ASTM B557 for tensile properties, ASTM E112 for grain size, ISO 4287 for surface roughness, ISO 2768-m for tolerances, ISO 1183 for density, ASTM E1225 for thermal conductivity, and IEC 60028 for electrical conductivity. These are verification references, not certifications.

Data Basis

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

Preliminary Technical Classification

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pressure:	Atmospheric to 10 bar (processing environment)
other spec:	Slurry concentration: ≤30% solids by weight, Flow rate: ≤5 m/s in processing fluids
temperature:	Ambient to 450°C (continuous), 500°C (peak)

Product Specifications

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