Casting

Casting is a process in which molten material, usually metal or glass, is poured into a mold and allowed to harden, producing three-dimensional objects with fine detail. In AP Art History, it appears in Unit 7 (Topic 7.1) as one of the metalworking techniques behind West and Central Asian art.

Verified for the 2027 AP Art History examLast updated June 2026

What is Casting?

Casting is one of the oldest ways to make a three-dimensional object. The artist heats a material like bronze, brass, or glass until it melts, pours it into a mold, and lets it cool and solidify. The mold does the shaping, so the finished piece picks up every detail carved into that mold, which is why cast objects can have intricate surfaces and complex forms that would be brutal to carve or hammer by hand.

In the AP Art History CED, casting lives in Topic 7.1: Materials, Processes, & Techniques in West & Central Asia. The essential knowledge for this topic (MPT-1.A.18) names metalwork as one of the signature art forms of the region, alongside ceramics, textiles, painting, and calligraphy. Islamic metalworkers used casting along with other techniques like hammering and inlay to produce vessels, basins, and decorative objects. Variations of the process include lost-wax casting, bronze casting, and sand casting, which all follow the same basic logic of mold plus molten material.

Why Casting matters in AP Art History

Casting supports learning objective AP Art History 7.1.A, which asks you to explain how materials, processes, and techniques affect art and art making. That phrasing matters. The exam doesn't just want you to know that an object is metal. It wants you to explain how the process shaped what the artist could do. Casting lets an artist reproduce complex, detailed forms reliably, which is different from what hammering or carving allows. Per MPT-1.A.18, metalwork is one of the key art forms where West and Central Asian artists excelled, so knowing the difference between metalworking techniques is exactly the kind of knowledge Topic 7.1 is built on. For the full picture of materials and techniques in this region, head up to the Topic 7.1 study guide.

How Casting connects across the course

Lost-wax Casting (Unit 7)

Lost-wax casting is the most famous version of the general process. The artist models the object in wax, builds a mold around it, melts the wax out, and pours metal into the empty space. If a question gets specific about how a cast object was made, this is usually the technique it means.

Islamic Metalwork (Unit 7)

Casting is one tool in the Islamic metalworker's kit, alongside hammering, engraving, and inlay. The Basin (Baptistère de St. Louis) shows the other side of that kit. It was hammered from brass and inlaid with silver and gold, not cast, which makes it a perfect contrast piece.

Bronze Casting (Unit 7)

Bronze is the classic casting material because it melts at a workable temperature and holds fine detail. When you see 'cast bronze' in an image identification, that material choice is itself an answer to a 7.1.A-style question about how materials affect art making.

Sand Casting (Unit 7)

Sand casting uses a mold packed from sand instead of a wax model. It's faster and cheaper but captures less detail than lost-wax. Knowing the trade-off between the two is a quick way to show you understand process, not just vocabulary.

Is Casting on the AP Art History exam?

Casting shows up in multiple-choice questions that test whether you can match a technique to its process or to a specific work. A typical stem describes what the artisan physically does and asks you to name the technique. For example, one practice question describes a metalworker 'repeatedly striking the metal with a hammer to shape it.' That's hammering (repoussé-style work), not casting, and the question is checking whether you can tell them apart. Another asks which metalworking technique the Basin (Baptistère de St. Louis) exemplifies, and the answer there is hammered brass with inlay, again not casting. So the exam often tests casting by making you rule it out. No released FRQ has used the term verbatim, but free-response questions built on 7.1.A regularly ask you to explain how a technique affects the final artwork, and 'casting allows intricate, reproducible three-dimensional detail' is exactly the kind of process-to-effect sentence those questions reward.

Casting vs Hammering (repoussé)

Both are metalworking techniques, but they shape metal in opposite states. Casting works with liquid metal poured into a mold, so the mold determines the form. Hammering works with solid metal sheets struck repeatedly into shape, so the artisan's hand determines the form. The Basin (Baptistère de St. Louis) is the exam's go-to example of hammered metalwork. If a question describes striking metal with a hammer, the answer is hammering, not casting, even though both can produce brass or bronze vessels.

Key things to remember about Casting

  • Casting means pouring molten material, like metal or glass, into a mold and letting it solidify into a three-dimensional object.

  • In AP Art History, casting belongs to Topic 7.1 and supports learning objective 7.1.A, explaining how processes and techniques affect art making.

  • Metalwork is one of the signature art forms of West and Central Asia per the CED, and casting is one of its core techniques alongside hammering and inlay.

  • Casting captures fine detail because the mold does the shaping, while hammering shapes solid metal by hand, and the exam tests whether you can tell these apart.

  • The Basin (Baptistère de St. Louis) is hammered brass with inlay, not a cast object, which makes it a common trap in technique-identification questions.

  • Lost-wax casting and sand casting are specific versions of the general casting process, with lost-wax giving finer detail and sand casting being faster and cheaper.

Frequently asked questions about Casting

What is casting in AP Art History?

Casting is the process of pouring molten material, usually metal like bronze or brass, into a mold and letting it solidify into a three-dimensional object. On the AP exam it appears in Unit 7 as a metalworking technique of West and Central Asia.

Is the Basin (Baptistère de St. Louis) a cast object?

No. The Basin is hammered brass inlaid with silver and gold, a technique that reached its peak under the Mamluks. Practice questions use it specifically to test whether you can distinguish hammered metalwork from casting.

How is casting different from hammering or repoussé?

Casting pours liquid metal into a mold, so the mold creates the shape. Hammering strikes solid metal sheets into shape by hand. If an exam question describes an artisan repeatedly striking metal, the answer is hammering, not casting.

What's the difference between casting and lost-wax casting?

Casting is the general process of pouring molten material into a mold. Lost-wax casting is a specific method where a wax model is melted out of the mold to create the cavity, which allows for especially fine detail.

Is casting on the AP Art History exam?

Yes, as part of Topic 7.1 (Materials, Processes, & Techniques in West & Central Asia) under learning objective 7.1.A. It mostly appears in multiple-choice questions that ask you to identify a metalworking technique from a description or a specific work.

Casting — AP Art History Definition & Exam Guide | Fiveable