Aluminum 710.0
AA 710.0 · UNS A07100 · also ZG61B
710.0 (A07100, ZG61B, formerly A712.0) is an Al-Zn-Cu sand casting alloy that reaches its properties by natural aging, with no solution treatment or quench.
Reference datasheet — 710.0 is not in the instant-quote catalog. Upload your part and an engineer will quote it in this grade or suggest the closest stocked equivalent.
Values for the T5 condition
710.0 tempers and conditions
710.0 is supplied in 3 conditions, soft to hard. T5 is the default FabDigit quotes; the values on this page are for it.
Compare all 3 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
As fabricated | Use for castings machined and put in service immediately after shakeout, before natural ageing has completed. | 125 | 205 | 6 | 60 HB | 33 % IACS |
T5Default Cooled from hot working and artificially aged | Most commonly supplied condition — a short low-temperature age stabilises dimensions and locks in full strength without solution treatment or quench distortion. | 170 | 240 | 5 | 75 HB | 35 % IACS |
Cooled from hot working and naturally aged | Standard low-cost condition: the alloy self-ages at room temperature over several weeks to near-T5 strength with no furnace time. | 170 | 240 | 5 | 75 HB | 35 % IACS |
What is 710.0?
710.0 (A07100, ZG61B, formerly A712.0) is an Al-Zn-Cu sand casting alloy that reaches its properties by natural aging, with no solution treatment or quench. Engineers use it for machined machinery parts and hardware castings where dimensional stability and cutting behaviour matter: 170 MPa yield, 240 MPa tensile, 5% elongation, 75 HB, 35% IACS and a machinability score of 85, the highest in this group, in F, T1 and T5. The trade-offs are poor fusion weldability, hot-tear sensitivity, SCC risk in chlorides and a 150 °C service limit. For permanent-mold work use 711.0. 710.0 has a density of 2.81 g/cm³ (0.102 lb/in³), heavier than 86% of aluminum grades. It melts at 600°C (1,112 °F). 710.0 has a yield strength of 170 MPa (24.7 ksi) and a tensile strength of 240 MPa (34.8 ksi) — weaker than 56% of aluminum grades. Elongation at break is 5% and the elastic modulus is 71 GPa (10.3 Msi).
What is 710.0 used for?
- machinery parts
- hardware castings
- fittings
Advantages
- Easy to machine — 85/100, better than 95% of aluminum grades
- Polishes to a fine finish — 70/100, better than 87% of aluminum grades
Limitations
- Limited formability — 7/100, worse than 89% of aluminum grades
- Difficult to weld — 22/100, worse than 83% of aluminum grades
710.0 properties
Typical room-temperature values for 710.0-T5; bars are the position among aluminum grades.
Physical3
710.0 has a density of 2.81 g/cm³ (0.102 lb/in³), heavier than 86% of aluminum grades. It melts at 600°C (1,112 °F).
Mechanical15
710.0 has a yield strength of 170 MPa (24.7 ksi) and a tensile strength of 240 MPa (34.8 ksi) — weaker than 56% of aluminum grades. Elongation at break is 5% and the elastic modulus is 71 GPa (10.3 Msi).
Thermal6
710.0 is rated for continuous service to 150°C (302 °F). It conducts heat at 142 W/m·K (82 BTU/hr·ft·°F), better than 51% of aluminum grades. Thermal expansion is 23.6 µm/m·K (13.1 µin/in·°F).
Electrical3
710.0 conducts electricity at 35 % IACS, better than 52% of aluminum grades.
Chemical & Environmental3
Corrosion resistance is fair (48/100), worse than 58% of aluminum grades.
Sustainability4
Producing a kilogram of 710.0 takes about 200 MJ of energy and emits 12 kg of CO₂ — less than 60% of aluminum grades. Typical recycled content is 60%.
Manufacturability7
710.0's machinability is excellent (85/100, better than 95% of aluminum grades); weldability poor (22/100); formability not recommended (7/100).
Common Calculations5
Values are nominal handbook figures for design screening. Certified mill or lot data ships with every FabDigit order on request.
Strength versus weight in the aluminum family
Yield strength against density for every aluminum grade FabDigit runs. 710.0 is highlighted; hover a dot for its name, or open the interactive family chart.
Working with 710.0
Is 710.0 easy to machine?
One of the best-machining cast aluminium alloys — free-cutting chips, sharp corners and good finish at high speed with sharp carbide and light lubrication.
Can 710.0 be welded?
Poor fusion weldability; the high-Zn matrix is hot-crack and porosity prone, so repairs are usually mechanical rather than welded.
Can 710.0 be formed, bent or molded?
Sand casting only (permanent-mould use is served by 711.0); needs generous risering and controlled cooling to avoid hot tears, and gains strength without a solution-treat/quench cycle so distortion is minimal.
710.0 chemical composition (wt %)
Limits by weight percent from the governing specification, written the way the spec states them — a single maximum for impurities, a range for alloying elements, and the base element as balance. Nominal is the typical mid-range value.
| Element | Spec limit (wt %) | Nominal |
|---|---|---|
| Si | ≤ 0.15 | |
| Fe | ≤ 0.5 | |
| Cu | 0.35 – 0.65 | 0.5 |
| Mn | ≤ 0.05 | |
| Mg | 0.6 – 0.8 | 0.7 |
| Cr | ≤ 0.05 | |
| Zn | 6 – 7 | 6.5 |
| Timax, grain refiner | ≤ 0.25 | |
| Others (each)each | ≤ 0.05 | |
| Others (total)total | ≤ 0.15 | |
| Al | balance |
What surface finishes work on 710.0?
Machines and polishes well; anodizes to a fair, slightly dull clear film — paint or chromate/anodize plus sealing is advised for chloride environments to limit SCC risk.
Surface treatments FabDigit runs on aluminum parts — pick them in the quote configurator or call them out on the drawing. Each links to its datasheet in the surface-finish library (thickness, specs, call-out, material verdicts).
Organic Coating
Equivalent designations
Standards and trade names that resolve to Aluminum 710.0 in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- UNS
- A07100
- Trade names
- ZG61B
How much does 710.0 cost?
710.0 is a standard-cost aluminum ($$), cheaper than about 71% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
710.0 — frequently asked
What is 710.0 used for?
710.0 is typically used for machinery parts, hardware castings and fittings. In short: best-machining cast aluminum; no solution treatment needed; sand-cast Al-Zn-Cu.
What is the yield strength of 710.0?
710.0 has a typical yield strength of 170 MPa (24.7 ksi) and a tensile strength of 240 MPa (34.8 ksi) — weaker than 56% of aluminum grades. Strength varies by condition: see the 3 listed tempers.
Is 710.0 easy to machine?
Yes — machinability is rated excellent (85/100, better than 95% of aluminum grades). One of the best-machining cast aluminium alloys — free-cutting chips, sharp corners and good finish at high speed with sharp carbide and light lubrication.
Can 710.0 be welded?
Not readily — weldability is rated poor (22/100). Poor fusion weldability; the high-Zn matrix is hot-crack and porosity prone, so repairs are usually mechanical rather than welded.
What surface finishes work on 710.0?
Machines and polishes well; anodizes to a fair, slightly dull clear film — paint or chromate/anodize plus sealing is advised for chloride environments to limit SCC risk.
Can 710.0 be formed, bent or molded?
Sand casting only (permanent-mould use is served by 711.0); needs generous risering and controlled cooling to avoid hot tears, and gains strength without a solution-treat/quench cycle so distortion is minimal.
What is the maximum service temperature of 710.0?
710.0 is rated for continuous use to about 150°C (302 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between 710.0-T5 and 710.0-F?
T5 is the default condition — most commonly supplied condition — a short low-temperature age stabilises dimensions and locks in full strength without solution treatment or quench distortion. F: use for castings machined and put in service immediately after shakeout, before natural ageing has completed. Yield strength is 170 MPa in T5 versus 125 MPa in F.
How much does 710.0 cost?
710.0 is a standard-cost aluminum ($$), cheaper than about 71% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
Sources
- ASTM B26/B26M — Aluminum-Alloy Sand Castings — ASTM International (2018)
- Designations and Chemical Composition Limits for Aluminum Alloys in the Form of Castings and Ingot (Teal Sheets) — The Aluminum Association (2018)
- ASM Handbook Vol. 2 — Properties and Selection: Nonferrous Alloys and Special-Purpose Materials — ASM International (1990)
- ASM Handbook Vol. 15 — Casting — ASM International (2008)
- ASM Specialty Handbook: Aluminum and Aluminum Alloys — ASM International (1993)
Property data is compiled from published supplier and standards handbooks and normalised for comparison; hardness values on non-Brinell scales are converted approximately for charting only. Manufacturability limits are FabDigit quote-engine defaults and may be relaxed by engineering review. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.