A380 铝铸造合金

What Is A380 Aluminum Casting Alloy?

Linsy A380 is the most widely specified aluminum-silicon-copper die casting alloy. It combines excellent castability, good mechanical properties, and economic pricing, with resistance to stress-corrosion cracking and reliable dimensional stability in complex, thin-walled parts. A380 is normally used in the as-cast (F) condition without further heat treatment, though T5 is sometimes applied for added stability.

Available A380 Aluminum Products

Linsy supplies A380 in the forms most useful for foundries and component buyers. Standard and custom dimensions are available; contact our team for non-listed sizes.

形式	Typical Size / Specification	Common Use
Die casting	Per drawing; wall 1.0–6 mm	High-volume thin-wall parts
Sand casting	Per drawing	Lower-volume housings
Permanent-mold casting	Per drawing	Structural components
CNC-machined casting	Tolerances per ISO 2768	Finished parts

A380 Specifications & Equivalent Designations

The tables below list the alloy’s common commercial and standard designations. Cross-references follow widely used naming systems; verify the exact designation required for your target market.

体系	名称
Former / trade style	A380
AA（铝业协会）	A380
EN	EN AC- series (market dependent)
美国材料与试验协会	ASTM B26 / B85 (castings), B179 (ingot)

Chemical Composition of A380 Aluminum

Composition limits below follow common casting-alloy standards. Values are weight percent, balance aluminum. Confirm exact limits against your required specification.

要素	Content (wt.%)
Si	7.5–9.5
铁	1.3 max
铜	3.0–4.0
锰	最大 0.50
镁	最大 0.10
锌	3.0 max
倪	最大 0.50
其他，各	0.05 最大值
其他，合计	0.15 最大值
Al	剩余

不同回火状态下的力学性能

The values below are typical room-temperature properties for the indicated condition and should be confirmed against mill test data for your specific casting and heat treatment. Casting method, section thickness, and cooling rate affect results.

脾气	拉伸强度（兆帕）	屈服强度（兆帕）	伸长率 (%)
F（铸态）	310–340	155–165	3.0–4.0
T5	310–340	160–180	2.5–4.0

硬度选择指南

Choose the temper based on your priority between strength, ductility, and dimensional stability:

脾气	何时使用
F（铸态）	As-cast, no heat treatment. Best economy and dimensional stability for die and sand castings.
T5	Artificially aged only (no solution treatment). Improved strength with lower cost and distortion than T6.

Key Characteristics of A380 Aluminum

Excellent Castability

High silicon and copper give A380 superior fluidity and filling of thin, complex dies at high production rates.

Good Strength & Stiffness

Among the strongest common die-cast alloys, A380 suits load-bearing brackets and housings.

尺寸稳定性

Low tendency to warp or shrink supports tight-tolerance high-volume production.

常见应用

• Automotive components (oil pans, brackets)
• Electrical and electronic chassis
• Power tool housings
• Household appliances
• Furniture and lawn mower parts

加工与表面处理说明

A380 is normally die cast and used as-cast. Machining, tapping, and vibratory finishing are standard. Plating and powder coating are common; anodizing is limited by the high silicon content and is not typically recommended. Welding is generally avoided for structural die-cast A380.

质量文件与检验

Every A380 shipment is delivered with an MTC (material test certificate) covering chemical composition and mechanical properties as ordered. Dimensional inspection and third-party verification (e.g. SGS report, available on request) can be arranged. Our production system is managed under ISO 9001, ISO 14001, and ISO 45001.

Why Choose Linsy for A380 Aluminum

Linsy operates a Shenzhen-based aluminum manufacturing facility with over 20 years of experience across the 1000–8000 series and a broad range of casting grades. We support both ingot supply and finished cast components with in-house CNC machining, polishing, and anodizing.

• Custom casting method, temper, and dimension support
• MTC with every order; SGS report available on request
• CNC machining, laser cutting, polishing, and anodizing under one roof
• Responsive RFQ turnaround for engineering buyers

相关资源

• Aluminum Casting Alloy Selection Guide [VERIFY — replace with Linsy blog]
• Die Casting vs Sand Casting for Aluminum [VERIFY — replace with Linsy blog]
• Heat Treatment of Cast Aluminum Alloys [VERIFY — replace with Linsy blog]

A380 Aluminum FAQ

A380 vs A383 — which to choose?

A383 has higher silicon and better fluidity plus improved hot-cracking resistance, preferred for very intricate or thin-wall dies. A380 offers slightly better strength and is the general default.

Is A380 heat treated?

Usually no — it is supplied as-cast (F). T5 may be used where added dimensional stability is required.

常见订购问题解答

What is the typical lead time for casting alloy orders?

For standard ingot and common sand/permanent-mold castings, typical lead time is 10–60 days depending on temper, quantity, and any required machining or surface finishing. Confirm exact timing with our sales team when requesting a quote.

Do you provide mill test certificates (MTC)?

Yes. Every shipment is supplied with an MTC (material test certificate / inspection report) covering chemical composition and mechanical properties as ordered.

Can Linsy supply custom casting sizes and tempers?

We support custom dimensions, casting method selection, heat treatment (F, T4, T5, T6 as applicable), and downstream CNC machining, polishing, and anodizing. Share your drawing or spec and we will quote against it.

Which standards do your casting alloys meet?

Our casting alloys are produced and inspected against widely recognized standards such as ASTM B26/B85 and EN 1706. Specific designation cross-references are listed on each product page; confirm the exact standard requirement for your market when ordering.

How should I request a quote?

Use the RFQ form or contact our sales team with alloy, temper, form, dimensions, quantity, and required certificates. Our engineers will respond with availability and pricing.