A443.0 铝铸造合金

What Is A443.0 Aluminum Casting Alloy?

Linsy A443.0 is a general-purpose aluminum-silicon (Al-Si) casting alloy renowned for its exceptional fluidity and castability. It ensures minimal porosity and is widely used in ingot form for remelting as well as for sand and permanent-mold castings. A443.0 offers good mechanical properties and superior resistance to atmospheric corrosion, making it a reliable, cost-effective material for standard components.

Available A443.0 Aluminum Products

Linsy supplies A443.0 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
铸锭	Standard ingot weights; remelt stock	Foundry remelting
Sand casting	Per drawing	General & decorative parts
Permanent-mold casting	Per drawing	Structural components
CNC-machined casting	Tolerances per ISO 2768	Finished parts

A443.0 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	A443.0
AA（铝业协会）	A443
EN	EN AC- series (market dependent)
美国材料与试验协会	ASTM B26 / B85 (castings), B179 (ingot)

Chemical Composition of A443.0 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	4.5–6.0
铁	0.8 max
铜	0.30（上限）
锰	最大 0.50
镁	0.05 最大值
锌	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）	155–175	65–80	5.0–8.0

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.

Key Characteristics of A443.0 Aluminum

Excellent Fluidity

Moderate silicon gives A443.0 very good filling of sand and permanent-mold molds with low porosity.

耐腐蚀性

Good atmospheric corrosion resistance suits outdoor and decorative applications.

经济高效

A general-purpose composition keeps cost low for standard, non-critical components.

常见应用

• General-purpose castings
• Structural and decorative parts
• Automotive components (housings)
• Electrical enclosures
• 泵体和阀体

加工与表面处理说明

A443.0 is normally used as-cast (F) in sand or permanent-mold processes, or as remelt ingot. It is not heat treated. Machining and finishing follow standard aluminum practice; anodizing produces a satisfactory decorative finish thanks to the moderate silicon level.

质量文件与检验

Every A443.0 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 A443.0 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]

A443.0 Aluminum FAQ

A443.0 vs A356 — which to choose?

A356 (Al-Si-Mg) is heat treatable to much higher strength and is used for structural parts. A443.0 is a lower-cost, as-cast general-purpose alloy for non-critical and decorative components.

Is A443.0 supplied as ingot?

Yes. A443.0 is commonly supplied as remelt ingot as well as finished sand or permanent-mold castings.

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.