Introduction
201.0 is an aluminum-copper alloy grade covered by ASTM B26/B26M. Typical applications include pump housings, cylinder heads, pistons, gears and structural castings for automotive, truck and trailer equipment.
| Field | Value |
|---|---|
| Designation | 201.0 |
| Material Type | Aluminum Alloy |
| Sub Type | Aluminum-Copper Alloy |
| Product Form | casting |
Manufacturing Process
Sand Casting
Equivalent Materials
N/A
Similar Materials
N/A
Reference Standards
| Standard | Standard Title | Edition | Specification | Identifier |
|---|---|---|---|---|
| ASTM B26/B26M | Standard Specification for Aluminum-Alloy Sand Castings | 05 | 201.0 | UNS A02010 |
Related Casting Products
Physical Properties
N/A
Chemical Composition
| Element | ASTM B26/B26MEdition 05 · wt.% |
|---|---|
| Si | ≤ 0.10 |
| Fe | ≤ 0.15 |
| Cu | 4.0–5.2 |
| Mn | 0.20–0.50 |
| Mg | 0.15–0.55 |
| Ti | 0.15–0.35 |
| Ag | 0.40–1.0[1] |
| Al | remainder |
Notes
ASTM B26/B26M · Edition 05
[1] Ag: Contains silver 0.40–1.0 %. Explicit silver requirement in footnote A is retained separately from Others, Each.
[2] Chemical composition: Other elements, each: ≤ 0.05 wt.%
[3] Chemical composition: Other elements, total: ≤ 0.10 wt.%
Heat Treatment
ASTM B26/B26M–05 · Sand Casting · T7 · Recommended heat treatment
| Step | Operation | Temperature | Cooling |
|---|---|---|---|
| 1 | Recommended: Solution heat treatment | 960 °F / 515 °C; Holding time: 2 h[1] | — |
| 2 | Recommended: Solution heat treatment | 980 °F / 525 °C; Holding time: 14–20 h[1] | Water quench |
| 3 | Recommended: Natural aging | Holding time: 12–24 h[2] | — |
| 4 | Recommended: Precipitation heat treatment | 370 °F / 190 °C; Holding time: 5 h[3] | Still air outside furnace |
Notes
ASTM B26/B26M · Edition 05
[1] T7, T7 · Recommended heat treatment: Source: ASTM B917/B917M–25 (Recommended; when specified by the material specification or purchase order).; ±10°F; Use suitable metal-temperature measurement; sections/microstructure affect soak time selection (7.2).; Quench in water at 150 to 212°F except as noted.; Time at solution temperature may be increased for section thickness over 1 in.; Cooling not required prior to second step.; ±5°C; Quench in water at 65 to 100°C except as noted.; Time at solution temperature may be increased for section thickness over 25 mm.
[2] T7, T7 · Recommended heat treatment: room temperature; Source: ASTM B917/B917M–25 (Recommended; when specified by the material specification or purchase order).; ±10°F; Use suitable metal-temperature measurement; sections/microstructure affect soak time selection (7.2).; No quenching required. Cool in still air outside the furnace.; ±5°C
[3] T7, T7 · Recommended heat treatment: Source: ASTM B917/B917M–25 (Recommended; when specified by the material specification or purchase order).; ±10°F; Use suitable metal-temperature measurement; sections/microstructure affect soak time selection (7.2).; No quenching required. Cool in still air outside the furnace.; ±5°C
Mechanical Properties
Core Mechanical Properties
ASTM B26/B26M — 05 · Table 2 — Normative
Notes
ASTM B26/B26M · Edition 05
[1] Tensile Strength/Yield Strength (Rp0.2)/Elongation: inch-pound; 2 in. or 4 x diameter
[2] Tensile Strength/Yield Strength (Rp0.2)/Elongation: SI; 5 x diameter
Welding Conditions
N/A
Applications
Aluminum-copper alloy ASTM B26/B26M 201.0 is used for pump housings, cylinder heads, pistons, gears and structural castings for automotive, truck and trailer equipment. Other cast components used in this material family include covers, manifolds, cylinder-related castings, pump components and valve components. Applications include engines, machinery and other industrial equipment, including replacement parts.
Alloy condition and the recorded purchase specification remain applicable; broader literature does not extend that specification to aerospace procurement.
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