5000 TJ
AVAILABLE NOWModified 5083 cast aluminum plate (ATP-5 type). Precision ground to +/-0.005" flatness. The standard substrate for fixtures, molds, jigs, and index tables.
Overview
Cast aluminum tool and jig plate is a fundamentally different product from hot-rolled wrought aluminum plate. It is produced by casting a modified 5083-type alloy (ATP-5) into near-net-thickness slabs under controlled solidification conditions, then precision grinding both faces to achieve flatness tolerances of +/-0.005" — tolerances that rolled plate cannot meet. The casting process eliminates the residual stresses that develop during rolling, which is the property that makes it useful for precision tooling applications.
Because there is no rolled-in stress, cast TJ plate does not require a separate stress-relief operation before machining. Thin features machined from cast plate hold their dimensions. The same part geometry machined from a wrought 7075 or 6061 plate block would spring when the clamps release, requiring straightening or a stabilization cycle. For fixture plates, mold bases, CMM fixtures, and index tables, the added cost of cast plate over wrought is paid back in reduced scrap and rework.
Mechanical strength is lower than wrought alloys in the same thickness. Cast TJ plate is not a structural alloy and should not be specified where load-bearing strength is the requirement. Its value is in dimensional stability, precision flatness, and consistent thickness throughout the plate.
Tempers Available
As-Cast, Stress Relieved
Material Origin
Available Forms
Cast Plate
0.25" through 4" thick. Precision ground top and bottom. Custom cut to your dimensions.
Custom Cut
Cut to your rectangle dimensions from cast plate stock.
Mechanical Properties
| Temper / Condition | Tensile (min) | Yield (min) | Elongation (min) | Hardness |
|---|---|---|---|---|
| As-Cast / Stress Relieved Typical values; varies by producer. Strength is secondary to flatness and stability for this product. | 22,000 to 27,000 psi (typical) | 14,000 to 18,000 psi (typical) | 3 to 5% (typical) | Brinell 65 to 70 (typical) |
Values are minimums per applicable specification unless noted as typical. Properties may vary by thickness, temper, and mill. Always verify against the applicable AMS or ASTM specification for your program.
Physical Properties
Specifications & Standards
AMS Specifications
ASTM / MIL Specifications
Machining Notes
Common Applications
Cast tool and jig plate is specified over wrought plate when post-machining flatness is critical, when thin cross-sections would distort from wrought plate stress relief, or when the application requires a stable, consistent substrate that will not move after machining.
Why NOX for 5000 TJ
Related Materials
Related Materials
6061 Aluminum
The standard general-purpose structural alloy. Good machinability, weldability, and corrosion resistance across a wide range of applications.
7075 Aluminum
High-strength aerospace alloy. Among the highest tensile strength available in commercial aluminum at 73,000 psi minimum in T651.
7050 Aluminum
Thick-section aerospace plate with superior stress corrosion resistance compared to 7075. The standard for aircraft structural components above 3 inches thick.
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