3C electronic Magnesium alloy round bar
- Product Description
3C Electronic Magnesium Alloy Round Bar – Precision Lightweight

Material for Consumer Electronics
When you're engineering the next generation of laptops, smartphones, or cameras, you need materials that won't compromise on strength while keeping weight down. The 3C electronic Magnesium alloy round bar from Hagrien delivers exactly that—precision-extruded rods up to Ø300 mm with consistent microstructure, dimensional tolerances within ±0.1 mm, and thermal conductivity reaching 70–160 W/(m·K). Our closed-loop manufacturing system ensures uniform performance across every batch, reducing your downstream machining risks and qualification cycles. With 7+ years of continuous production experience and full traceability documentation, you get a reliable supply partner who understands the stakes in high-volume 3C manufacturing.
What Makes Our Magnesium Alloy Round Bars Different?
Designed for Gadgets Manufacturing
You're not fair buying crude material.
You're contributing in a arrangement planned around your generation realities.
Our item is defined utilizing grades like AZ91D, AM60B, and ZK60. Each review equalizations quality, machinability, and warm scattering based on your application's warm and mechanical demands.
We control each step—from combination dissolving to extrusion—so you get bars with unsurprising properties and negligible variation.
Lightweight Without the Trade-offs
Magnesium's thickness sits at around 1.8 g/cm³.
That's 33% lighter than aluminum.
But weight diminishment implies nothing if the portion flexes beneath stack. Our circular bars provide ductile quality between 250–320 MPa, giving you the inflexibility required for ultra-thin gadget chassis and inside frames.
You get auxiliary judgment without the bulk.
Built-In Warm Management
Modern processors produce genuine heat.
Your lodging fabric needs to move that warm fast.
With warm conductivity up to 160 W/(m·K), our magnesium bars act as effective warm bridges. Warm streams absent from basic components, keeping execution steady and amplifying gadget life expectancy.
Precision You Can Machine
High-speed CNC milling demands consistent material behavior.
Our extrusion process delivers uniform grain structure and surface quality. This translates to:
- Reduced tool wear
- Minimal scrap rates
- Faster cycle times
You avoid the variability that creates rework and delays.

Technical Specifications
Item | Unit | AZ31B | AZ61A | AZ91D |
Density | g/cm³ | 1.77 | 1.80 | 1.81 |
Melting Point | ℃ | 566- 632 | 620- 630 | 470- 595 |
Tensile Strength | MPa | 255- 290 | 290- 315 | 230- 250 |
Yield Strength | MPa | 150- 200 | 170- 220 | 150- 170 |
Elongation | % | 12-21 | 10-16 | 3-5 |
Elastic Modulus | GPa | 45 | 45 | 45 |
Poisson’s Ratio | — | 0.32 | 0.31 | 0.32 |
Thermal Expansion Coefficient | 10⁻⁶ /℃ | 26 | 26 | 26 |
Thermal Conductivity | W/(m·K) | 70 | 65 | 50 |
Specific Heat Capacity | J/(kg·K) | 1000-1050 | 1050 | 1050 |
Electrical Resistivity | μΩ·cm | 92- 125 | 125 | 170 |
Brinell Hardness | HB | 56-73 | 60-70 | 63-90 |
Shear Modulus | GPa | 17 | 17 | 17 |
Fatigue Strength | MPa | 80- 110 | 90- 120 | 70- 100 |
Where You'll Use These Bars
High-End Laptop Structures
Ultrabook hinges and internal frameworks demand materials that endure repeated stress cycles.
Our ZK60-grade 3C electronic Magnesium alloy round bars provide the fatigue strength necessary for thin-and-light designs. Your devices stay slim without sacrificing durability.
Smartphone Components
Foldable phones require hinge mechanisms that withstand over 200,000 fold cycles.
Our precision round bars serve as the raw material for these miniaturized, high-strength internal components. Tight tolerances and uniform properties ensure consistent performance across millions of units.
Professional Camera Chassis
Open air photography hardware faces temperature swings and mechanical shocks.
Magnesium's tall damping capacity retains vibrations, securing sensitive optics. The material's dimensional solidness keeps focal points flawlessly adjusted, indeed in cruel conditions.
5G Base Station Warm Sinks
High-frequency signals produce warm and electromagnetic interference.
Our circular bars machine into warm sinks that scatter warm vitality whereas giving EMI protecting. You address two basic challenges with one fabric.
Why Hagrien for Your Magnesium Supply?
Closed-Loop Manufacturing Control
We don't outsource critical steps.
Our facility handles alloy formulation, extrusion, and quality verification in-house. This means:
- Consistent batch quality
- Faster response to custom requests
- Full traceability from melt to delivery
You deal with one partner, not a fragmented supply chain.
Large-Diameter Capability
Most suppliers cap out at smaller diameters.
We extrude bars up to Ø300 mm with uniform microstructure. Larger stock diameters give you more flexibility in part design and reduce material waste.
Verification-First Approach
Our CNAS-accredited HTHP laboratory tests every production run.
You receive complete documentation:
- Certificate of Analysis (COA)
- Certificate of Conformance (COC)
- Safety Data Sheets (SDS)
- Batch traceability records
Audit readiness is built into every order.

Engineering Support
You're not just buying bars off a shelf.
Our team works with you to select the right alloy grade, optimize machining parameters, and troubleshoot production challenges. From prototype to mass production, we help you de-risk the transition.
Predictable Lead Times
Standard sizes ship in 2–4 weeks.
Custom specifications take 4–8 weeks, including prototyping.
Need it faster? Expedited delivery is available. We maintain safety stock for common diameters to keep your production line moving.
Exhibition

Frequently Asked Questions
What is 3C Magnesium alloy round bar mainly used for?
The product is primarily used for housings, frames, and thin-wall precision parts in consumer electronics. Buyers want to know whether the product can meet target working conditions, machining routes, and final application requirements without creating unnecessary downstream risk. Our bars are engineered to reduce trial-and-error costs and deliver predictable performance.
What key features should buyers evaluate when sourcing 3C Magnesium alloy round bar?
You should evaluate alloy grade consistency, dimensional tolerance, surface quality, and machining performance. Thin-wall machining compatibility matters because it directly affects processing yield, field reliability, product consistency, and the total cost of qualification. In export purchasing, these factors determine whether you'll face production delays or quality disputes down the line.
Why do international buyers choose Hagrien for 3C Magnesium alloy round bar?
Hagrien combines alloy melting, extrusion, machining coordination, and quality control to support both standard supply and custom lightweight component development. This helps you reduce dependence on a single supplier, improve communication speed, and move from sample validation to stable volume supply more efficiently. Our U.S. entity provides localized support aligned with North American schedules.
Can you supply non-standard diameters or custom alloy formulations?
Yes. Our engineering team works with you to develop drawing-based production and prototype solutions. We provide FAT (Factory Acceptance Test) support and verification plans to ensure your custom specifications are met before mass production begins.
What certifications and compliance standards do you meet?
We hold ISO 9001, ISO 14001, and ISO 45001 certifications, plus API recognition. Our products conform to ASTM B107/B107M and GB/T 5153-2016 standards. Full HSE management systems are in place to ensure safe, compliant production.

Get Your Quote Today
Ready to source 3C electronic Magnesium alloy round bar that delivers consistent quality? Reach out to us at cyrus@us-hagrien.com for a quotation within 1–3 business days.
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