Forging-Grade Magnesium Alloy Billet

Product Specifications

Technical details and manufacturing context for Forging-Grade Magnesium Alloy Billet

Definition

Forging-grade magnesium alloy billet is a semi-finished industrial material specifically formulated for metal forming operations including forging, pressing, and stamping. These billets are produced through casting or extrusion processes to achieve uniform microstructure and mechanical properties suitable for subsequent deformation. They serve as the raw material input for manufacturing lightweight structural components in aerospace, automotive, and consumer electronics industries. The alloy composition is optimized for enhanced forgeability, reduced cracking, and improved mechanical performance in final forged parts.

Typical specifications for this billet include a diameter range of 80–500 mm, length from 500–3000 mm, and common alloy grades such as AZ31B, AZ61A, and ZK60A, referenced to ASTM B107. Mechanical properties at room temperature include yield strength of 200–280 MPa, tensile strength of 250–340 MPa, and Brinell hardness of 50–90 HB, all per ASTM B557 or ASTM E10. Microstructure grain size is 10–50 μm (ASTM E112), and density is 1.74–1.84 g/cm³ at 20°C. For hot forging, the recommended temperature range is 300–450°C. Surface finish is turned or peeled to Ra 1.6–3.2 μm (ISO 1302), and straightness is ≤1.5 mm/m (ISO 1101). Ultrasonic testing is available per ASTM E2375, Class A or B.

These values are reference ranges and must be verified for the specific alloy, temper, and billet dimensions required for your application. Always confirm with the legal manufacturer or supplier that the product meets your process and final part requirements, and that all relevant standards are current and applicable.

Working Principle

The billet is a pre-shaped metal stock that undergoes plastic deformation through applied force to achieve final component geometry. In forging, the billet is heated to a recommended temperature range (300–450°C) to increase ductility and reduce flow stress. It is then placed in a die and subjected to compressive forces, either by hammering, pressing, or stamping, causing the material to flow and fill the die cavity. The uniform microstructure and controlled grain size (10–50 μm) ensure consistent deformation behavior, minimizing cracking and achieving the desired mechanical properties in the forged part. After forging, the component may undergo further heat treatment or machining to meet final specifications.

Common Materials

Magnesium, Aluminum, Zinc, Manganese

Technical Parameters

Parameter	Typical range	Notes & selection driver
DiameterRequired	80–500 mm	Cross-sectional diameter of cylindrical billet
LengthRequired	500–3000 mm	Standard billet length for processing
Alloy GradeRequired	AZ31B, AZ61A, ZK60A designation	Standard alloy designation (e.g., AZ31B, AZ80A)ASTM B107
Yield StrengthRequired	200–280 MPa	Minimum yield strength at room temperatureASTM B557
Grain Size	10–50 μm	Average grain diameter in microstructureASTM E112
Density	1.74–1.84 g/cm³	Material density at 20°CASTM B557
Tensile Strength	250–340 MPa	Depends on alloy and temperASTM B557
Hardness	50–90 HB	Brinell hardnessASTM E10
Forging Temperature	300–450 °C	Optimal range for hot forging
Surface Finish	Ra 1.6–3.2 µm	Turned or peeled surfaceISO 1302
Straightness	≤1.5 mm/m	Ensures uniform forgingISO 1101
Ultrasonic Testing	ASTM E2375	Class A or B availableASTM E2375

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 magnesium structure providing base mechanical properties

Material: Pure magnesium
Aluminum Additive Part
Enhances strength and corrosion resistance through solid solution strengthening

Material: Aluminum
Zinc Additive Part
Improves strength and castability of the alloy

Material: Zinc
Manganese Additive Part
Enhances corrosion resistance and refines grain structure

Material: Manganese

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Forging-Grade Magnesium Alloy Billet.

Manufacturers of Forging-Grade Magnesium Alloy Billet

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Frequently Asked Questions

What are the typical dimensions of forging-grade magnesium alloy billets?

Reference dimensions are 80–500 mm in diameter and 500–3000 mm in length. However, exact dimensions depend on the specific product and application. Always confirm with the supplier.

Which alloy grades are commonly available?

Common grades include AZ31B, AZ61A, and ZK60A, as referenced in ASTM B107. The suitability of a grade depends on the forging process and final part requirements.

What mechanical properties can be expected?

At room temperature, yield strength is typically 200–280 MPa, tensile strength 250–340 MPa, and hardness 50–90 HB. These are reference ranges and vary with alloy and temper.

What forging temperature is recommended?

The optimal hot forging temperature range is 300–450°C. Heating within this range improves formability and reduces cracking risk. Always follow the supplier's recommendations.

Data Basis

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

Preliminary Technical Classification

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pressure:	Up to 100 MPa (typical forging pressure), dependent on alloy grade and process
other spec:	Billet diameter tolerance: ±1.5%, length tolerance: ±2%, surface finish: Ra ≤ 6.3 μm, grain size: ASTM 5-8
temperature:	250-450°C (forging range), ambient to 350°C (storage/handling)

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