A383 알루미늄 주조 합금

What Is A383 Aluminum Casting Alloy?

Linsy A383 is an aluminum-silicon-copper die casting alloy offering an excellent balance of high fluidity, superior pressure tightness, and good strength. It is preferred over A380 for intricate parts and those requiring improved hot-cracking resistance during casting. A383 achieves its properties in the as-cast (F) condition and performs reliably in high-pressure applications.

Available A383 Aluminum Products

Linsy supplies A383 in the forms most useful for foundries and component buyers. Standard and custom dimensions are available; contact our team for non-listed sizes.

양식	Typical Size / Specification	Common Use
Die casting	Per drawing; wall 0.8–6 mm	Intricate thin-wall dies
Sand casting	Per drawing	Lower-volume parts
Permanent-mold casting	Per drawing	Structural components
CNC-machined casting	Tolerances per ISO 2768	Finished parts

A383 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.

규격 체계	명칭
Former / trade style	A383
AA (알루미늄 협회)	A383
EN	EN AC- series (market dependent)
ASTM	ASTM B26 / B85 (castings), B179 (ingot)

Chemical Composition of A383 Aluminum

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

요소	Content (wt.%)
Si	9.5–11.5
Fe	1.3 max
Cu	2.0–3.0
Mn	0.50 최대
Mg	최대 0.10
Zn	1.0 max
Ni	0.50 최대
그 외, 각각	최대 0.05
기타, 합계	최대 0.15
Al	나머지

열처리 상태에 따른 기계적 특성

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.

성질	인장 강도(MPa)	항복 강도(MPa)	연신율 (%)
F (as-cast)	300–320	145–160	2.5–4.0
T5	300–320	150–170	2.0–3.5

템퍼 선택 가이드

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

성질	When to Use
F (as-cast)	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 A383 Aluminum

Superior Fluidity

Higher silicon than A380 lets A383 fill very thin and complex die cavities with fewer cold-shut defects.

Hot-Cracking Resistance

Improved resistance to hot tearing supports intricate geometries and large flat sections.

Pressure Tightness

Fine, sound microstructure suits hydraulic and pneumatic housings.

일반적인 애플리케이션

• Automotive engine mounts and brackets
• Electric motor housings
• Intricate die castings
• 얇은 벽 섹션이 필요한 부품
• General housing components

가공 및 표면 마감 참고 사항

A383 is normally die cast and used as-cast. Machining and surface finishing follow standard aluminum die-cast practice. Like A380, anodizing is limited by high silicon; painting or plating are the usual finishes.

품질 문서 및 검사

Every A383 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 A383 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

관련 자료

• 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]

A383 Aluminum FAQ

When is A383 better than A380?

Choose A383 for very intricate or thin-wall castings and where hot-cracking resistance is important. A380 remains the default for general strength-driven parts.

Can A383 be heat treated?

It is typically supplied as-cast (F). T5 may be applied for added stability but is less common than for A356/A357.

주문 관련 일반적인 자주 묻는 질문

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.