EN
Services
Precision manufacturing. Stronger together.Manufacturing Services & Support

From prototype to production, coordinated manufacturing solutions for your custom parts.

View All Services →
Solutions

Thermal Technologies

Choose air- or liquid-cooling components around your thermal and mechanical requirements.

Stepped aluminum heat sink with copper contact insert — illustrative concept
Explore Thermal Technologies

Heat Sinks

Liquid Cooling

AI & Data Center Cooling

Manufacturing support for your cold plates, manifolds and cooling assemblies.

Processor cold plates and distribution manifold — illustrative concept
Explore AI Cooling

AI Compute Cooling

Distribution & Assembly

AI Cooling Interfaces
  1. Cold PlateHeat-source interface
  2. ManifoldCoolant distribution
  3. CDU InterfaceConnection requirements
  4. Rack / LoopAssembly integration
Review component fit across your cooling system.

Industry Cooling Solutions

Find components for your power electronics, energy, laser and telecom application.

Machined power module cooling plate — illustrative concept
Explore Industry Cooling

Power Electronics

EV & Energy

Laser & Telecom

Industries

High-Tech & Electronics

Components for your electronic systems.

View Industry Applications

Applications & Project Inquiries

Precision & Advanced Systems

Start with your functional and quality requirements.

View Industry Applications

Applications & Project Inquiries

Industrial & Energy

Build around your operating environment.

View Industry Applications

Applications & Project Inquiries

Materials

From prototype to production, review material performance, manufacturability and cost for your part.

Engineering Plastics

Match your polymer to function, process and environment.

→
ABS — illustrative material conceptABSReview enclosure and molding needs›Polycarbonate (PC) — illustrative material conceptPolycarbonate (PC)Discuss clarity and impact needs›Nylon (PA) — illustrative material conceptNylon (PA)Review moisture and wear conditions›POM / Acetal — illustrative material conceptPOM / AcetalReview fit and sliding features›PEEK — illustrative material conceptPEEKDiscuss operating conditions›PTFE — illustrative material conceptPTFEReview friction and chemical exposure›ULTEM / PEI — illustrative material conceptULTEM / PEIDiscuss thermal and electrical needs›

Elastomers & Specialty Materials

Confirm grade availability and application requirements.

→
Elastomers
Silicone / LSR — illustrative material conceptSilicone / LSRDiscuss flexible component needs›TPU / TPE — illustrative material conceptTPU / TPEReview flexibility and processing›EPDM — illustrative material conceptEPDMReview weathering and chemical exposure.›NBR — illustrative material conceptNBRReview oil and fuel exposure.›FKM — illustrative material conceptFKMReview temperature and chemical exposure.›
Specialty Materials
G10 / FR4 — illustrative material conceptG10 / FR4Review insulation and laminate needs›Composites — illustrative material conceptCompositesReview stiffness, weight and laminate.›Customer-Specified MaterialsConfirm your grade and requirements.›Other Specialty MaterialsDiscuss your application and grade.›
Resources

Design & Engineering

Practical guidance for your part geometry and material decisions.

Explore Design Resources

Cost & Planning

Prepare your process, budget and sourcing questions.

Explore Planning Topics

Learn & Proof

Build your knowledge before production.

Explore Learning Paths
About Us

About LK MFG

Learn who we are and how we operate.

Explore Company Information →

Get in Touch

Find our U.S. support team or start a conversation.

View All Company Information →
sales@lkmfg.com (945) 409-1013

1750 Briercroft Ct, Suite 204
Carrollton, TX 75006, USA

Ribbed die-cast electronics enclosure with machined gasket rim and separate teal lid — illustrative A383 component concept
Illustrative A383 component concept.

FILL YOUR FEATURES · CONTROL YOUR FINISHED INTERFACES

A383 Aluminum for Your Intricate Die Cast Parts

Review A383 die casting services around the ribs, bosses and cavities your assembly needs. Connect the cast geometry to machining, protective finish and acceptance before committing to a die.

For custom A383 die cast parts, send the controlled drawing, expected quantities and critical surfaces together.

3 Decisions Before You Specify A383

Your geometry

For A383 thin wall die casting, review flow length, local transitions, filling and ejection. A universal minimum wall does not describe every component.

Your interfaces

For A383 precision die casting, define which dimensions remain cast and which need machining. Agree datums and acceptance in the supplied finish.

Your evidence

When selecting an A383 die casting manufacturer or A383 die casting supplier, compare the same tool scope, drawing revision and verification requirements.

A383 Aluminum Properties: Read the Test Basis

The A383 aluminum alloy is an Al-Si-Cu casting material. A383 aluminium is an alternate spelling; the purchase order still needs the exact alloy designation and product standard.

A383 referenceTypical value
Ultimate tensile strength310 MPa
Yield strength152 MPa
Elongation3.5%
Brinell hardness75 HB
Density2.74 g/cm³

Eastern Alloys publishes these typical die-cast values. Actual component properties depend on the casting and test conditions. Typical numbers are not design allowables.

Alloy supplier reference →

TYPICAL AS-CAST REFERENCE

A383 and A380 · Tensile Strength

0175350 MPa
A383 · 310 MPa
A380 · 324 MPa
NADCA 2021 Table A-3-2: typical as-cast values from separately die-cast specimens, not samples cut from production castings. This chart is not an LK MFG material test report or a guaranteed part result.
NADCA reference table →

A383 Aluminum Composition: Die-Cast Limits

Use the die-cast row when reviewing your A383 aluminum composition. Ingot limits and finished-casting limits are different purchasing references.

Element · wt%A383 die-cast referenceYour purchasing check
Silicon · Si9.5–11.5Retain the specified alloy identity
Copper · Cu2.0–3.0Review complete chemistry before substitution
Iron · Fe≤1.30Do not replace with the ingot limit
Manganese · Mn≤0.50Check the governing specification
Magnesium · Mg≤0.10Confirm the exact registered grade
Nickel · Ni≤0.30Include required certificate scope
Zinc · Zn≤3.0Retain lot linkage
Tin · Sn≤0.15Agree any additional residual limits
Aluminum · AlBalanceUse the complete contractual specification

Selected published die-cast chemistry from Eastern Alloys. Not a delivered-lot chemical analysis or a reproduction of the full product standard.

Chemistry source →

YOUR TOOL + YOUR FILLING PATH

A383 High Pressure Die Casting for Your Detailed Shape

A383 aluminum die casting is worth reviewing when intricate geometry makes filling a central design decision. The A383 alloy name cannot correct an unsuitable gate, vent or local wall transition.

Fill

Review metal flow, venting and difficult-to-fill features.

Release

Agree draft, parting lines, side actions and ejector locations.

Finish

Retain stock and access for your final machined surfaces.

Aluminum die casting →
Die-casting cavity inserts with runners and matching ribbed sensor enclosure — illustrative A383 component concept
Illustrative A383 component concept.

A383 vs A380 or ADC12: Approve the Complete Change

A383 and A380

Compare filling-sensitive geometry with the mechanical, environmental and finish requirements. The small difference in typical tensile values is not a universal winner.

A383 and ADC12

Similar application families do not establish identical chemistry or automatic interchangeability. Review the actual standard and allowable limits.

Your substitution approval

Confirm stock identity, tool/process effects, drawings and verification before changing the specified material.

A380 material details → · ADC12 material details →

A383 CNC Machining: Preserve What Your Assembly Locates On

A383 machining services should start with your casting datum scheme and finished-part requirements. Define machining allowance, support and the surfaces inspected after unclamping.

For your A383 aluminum casting parts, separate the cast envelope from the bearing fits, sealing faces and threaded features that need secondary work.

Before machining

Confirm incoming casting condition and any internal-quality acceptance.

After machining

Check exposed features and dimensions in the specified finishing state.

CNC machining →
Motor end-shield casting in a milling fixture with machined sealing rim — illustrative A383 component concept
Illustrative A383 component concept.

4 Checks for Your Thin Walls, Ribs and Bosses

Wall transitions

Avoid treating abrupt thickness changes as a material-only issue.

Ribs and bosses

Review intersections, feeding-sensitive masses and die opening.

Machined holes

Define cast cores, drilling allowance, tool access and thread requirements.

Appearance faces

Keep agreed parting lines, ejector marks and finishing access on the drawing.

Drawing review →
Navy powder-coated ribbed LED housing and silver cast bezel — illustrative A383 component concept
Illustrative A383 component concept.

VISIBLE FACES + FUNCTIONAL MASKING

Choose Your Finish Against a Representative Casting

A383 powder coating needs agreed preparation, color, gloss, masks and handling protection. Approve the actual casting surface rather than a sample made from an unrelated wrought alloy.

For A383 anodizing, review appearance and function separately. High-silicon cast surfaces can respond differently from wrought aluminum; a decorative appearance needs sample approval.

Your visible surfaces

Name the show faces and acceptable surface condition.

Your mating surfaces

Define uncoated sealing faces, bearing seats, contacts and threads.

Powder coating → · Anodizing →

4 Applications, 4 Different Acceptance Questions

A383 Motor Housing

Which bores, mounting faces and alignment relationships control the assembly?

A383 Electronic Enclosure

Which gasket surfaces, cable entries and appearance faces need inspection?

A383 LED Housing

What thermal interface, finish and system verification does your lighting design require?

A383 Automotive Parts

Which program-specific validation, traceability and release documents apply?

Illustrative application scenarios. Material selection alone does not establish a thermal rating, leak classification or automotive qualification.

Define Your A383 Die Casting Mold Before the First Trial

Your A383 die casting tooling scope should identify cavities, core actions, trials, ownership, maintenance and engineering-change responsibility.

01 · Review

Freeze the drawing revision, alloy and acceptance requirements.

02 · Plan

Agree die opening, gates, vents, cores and trimming.

03 · Trial

Review cast geometry, surfaces and the agreed test evidence.

04 · Release

Approve the machined and finished part baseline for repeat supply.

Die casting tooling →

4 Records That Make Your A383 Order Reviewable

Material

Exact grade and agreed chemistry/lot identification.

Dimensions

Controlled drawing and critical-feature measurement scope.

Surface and internal quality

Defined visual criteria and any specified NDT or leak test.

Release baseline

Approved sample, exceptions, finish and packing instructions.

Agree methods, locations, limits and available records for your actual project. General process descriptions are not inspection evidence.

Quality documentation →
CMM probe inspecting a bore in a die-cast motor cover — illustrative A383 component concept
Illustrative A383 component concept.

Keep A383 Aluminum ASTM B85 Requirements Explicit

For an A383 aluminum ASTM B85 callout, confirm the complete alloy designation, applicable B85/B85M edition and any extra test or acceptance requirements. NADCA tables identify the registered alloy as 383.0; commercial A383 wording should not replace the full contractual designation.

For OEM A383 die casting, retain controlled drawings and approval responsibility for any material or process change.

ASTM die-casting standard scope →

5 Inputs for Your A383 Aluminum Die Casting Quote

Die scope

Cavities, core actions, trials and ownership.

Part geometry

Filling path, trimming, walls and local features.

Machining

Datums, bores, faces, threads and inspection.

Finish

Preparation, masks, color and appearance approval.

Releases

Trial/repeat quantities, records and packaging.

Send Your Drawing and Supplied-Part Scope

Your A383 aluminum die casting quote needs CAD, a controlled drawing, exact material, quantities, critical features, finish and acceptance requirements. An alloy price alone is not a finished-part quotation.

Review cost drivers →

Your A383 Questions Before Tooling

What is A383 aluminum?

A383 is commercial wording for a silicon-copper aluminum die casting alloy. Retain the full registered designation and product specification when buying your part.

Can A383 be CNC machined?

Secondary machining can be planned for bores, sealing faces and threads. Agree casting allowance, datums, support and final inspection conditions.

Can A383 be anodized?

Review the intended function and approve appearance on a representative casting. Do not assume the finish will match wrought aluminum.

How much does A383 die casting cost?

Tooling, geometry, quantities, machining, finish and verification determine the supplied-part quote.

Does A383 guarantee a thinner wall?

No universal wall follows from the alloy name. Flow length, local geometry, die design and validation control the actual requirement.

Can ADC12 replace A383?

Only after review of the complete chemistry, product standard, application and design approval. Similar cross-reference names are not substitution permission.

Does the chart show our material test?

No. It shows published typical separately die-cast specimen data, not a test report for your delivered casting.

Can you guarantee one leak rate for every enclosure?

Define the medium, pressure, method, location and acceptance limit for the actual component. An alloy designation does not establish a universal leak rating.