Designing the aging of rust. Landscape-compatible castings that harmonize with COR-TEN.
CORQ is a landscape cast iron that allows you to enjoy the rust color and the heavy texture unique to cast materials. Over time, it changes to a deep brown and harmonizes beautifully with natural stone, plantings, and COR-TEN. Due to its higher price range compared to typical outdoor flooring materials, it is more suitable as an accent in places that emphasize the taste and rarity of the material rather than for uniform coverage over large areas. It is recommended for symbolic finishes in special spaces such as gardens, entrance approaches, and courtyards of luxury residences and estates, as well as public facilities, museums, art galleries, temples, cultural facilities, and memorial squares. By combining five different surface designs, you can create a unique expression for each piece. Kumagai Special Steel sells samples individually so that you can check the texture and weight before adoption. Please feel free to inquire about this opportunity!
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basic information
■Material: Spheroidal graphite cast iron (equivalent to JIS G 5502 FCD500-7) ■Dimensions: Approximately 100×100×Height 25mm ■Weight: Approximately 900g per piece ■Surface Design: 5 types (numbered 1 to 5 on the back) ■Color Tone: Changes over time, transitioning to a deep brown in the long term ■Joining Method: Installed by interlocking the claws and recesses around the edges ■Main Use: Indoor and outdoor flooring, approaches, exterior structures ■Installation: When installing directly on soil, protect with a weed barrier sheet and fill gaps with gravel. The edges can be cut with a metal saw. Can be fixed with nails if necessary. ■Cautions: Quantity specification for the 5 types is not possible. In the initial stages, rust from flowing water and droplets may occur, causing rust stains. Please be cautious of dirt on concrete, walls, vehicles, etc., and the risk of finger pinching due to the product's weight.
Price range
Delivery Time
P3
※We have stock available, so we can deliver it to you immediately (approximately within one week). However, depending on the quantity, it may take longer, so please confirm the delivery date in advance.
Applications/Examples of results
【Main Uses】 Suitable for landscape and exterior applications such as indoor and outdoor flooring, building approaches, walking spaces, plazas, gardens, and around plantings. By combining with natural stone, concrete, wood, and vegetation, the unique heaviness and aging characteristics of cast materials can be utilized as accents in the space. 【Examples of Use】 - Space design combined with COR-TEN signs, exterior walls, and planters - Approaches for stores, accommodations, cultural facilities, and residences - Paving and accents around gardens, courtyards, and planting areas - Exhibitions, displays, and landscape designs that enjoy aging 【Publication Record】 Examples of use are introduced in the 2016 exhibition at the Tokyo Metropolitan Art Museum and at the Iiyama Revival Church. There are also construction examples where it has been laid around buildings as outdoor flooring. Please consult in advance regarding construction methods suitable for your intended use and installation environment.
Detailed information
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CORQ pieces are interlocked by fitting the surrounding claws and recesses together. Unlike typical pin-cobblestone installations, which require joint creation and drying time, this structure can be used immediately after installation according to the documentation. The ends can also be trimmed with a metal saw for a proper fit. In actual construction, please verify the subgrade, load conditions, drainage, and end fixation according to the site conditions.
Line up（1）
| Model number | overview |
|---|---|
| CORQ (Landscape Castings) | CORQ is a decorative cast iron that allows you to enjoy the aging of rust and the heaviness of cast metal. It measures approximately 100mm on each side, stands about 25mm tall, and weighs around 900g, with five different surface designs. As a high-end outdoor flooring material, it is suitable as an accent to enhance special spaces such as residential gardens, entrances, public facilities, museums, art galleries, and temples. |
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Company information
**Expanding Our Global Steel Business!** We support both **CIF and EX Works (EXW)** terms. **Delivering Japanese Specialty Steel to the World.** Since our establishment in 1913, we have been a specialized trading company of special steel for nearly a century, listening to the needs of many customers and building an ideal relationship between customers and steel manufacturers as a conductor of steel distribution. As a trading company with various processing equipment, including cutting machines and laser cutting machines, we also contribute to reducing our customers' capital investment. Please feel free to contact us if you have any requests.