Aluminum 8030-H12
Temper
AA 8030 · UNS A98030 · EN AlFeCu
H12 = strain hardened, quarter hard
Light cold work when slightly higher tensile is needed but the wire must still bend and terminate easily.
Values for the H12 condition
Other 8030 tempers and conditions
8030 is listed in 8 conditions; see the grade overview at 8030.
Compare all 8 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
ODefault Annealed | Default for AA-8000 building wire and flexible cable: maximum elongation and conductivity, lowest connection creep. | 35 | 85 | 25 | 23 HB | 61.8 % IACS |
Strain hardened and partially annealed, quarter hard | Back-annealed quarter hard: same strength class as H12 with better ductility and lower spring-back for stranding. | 75 | 105 | 16 | 28 HB | 61.6 % IACS |
H12This page Strain hardened, quarter hard | Light cold work when slightly higher tensile is needed but the wire must still bend and terminate easily. | 85 | 110 | 12 | 30 HB | 61.5 % IACS |
Strain hardened and partially annealed, half hard | Half-hard with restored ductility; common compromise temper for compact-stranded AA-8000 cable. | 95 | 122 | 11 | 33 HB | 61.4 % IACS |
Strain hardened, half hard | Half-hard intermediate temper for stranded conductors needing more pull strength during installation. | 105 | 128 | 8 | 35 HB | 61.3 % IACS |
Strain hardened and partially annealed, three-quarter hard | Three-quarter hard with back-anneal for reduced brittleness in stranding and bending. | 118 | 142 | 7 | 38 HB | 61.2 % IACS |
Strain hardened, three-quarter hard | Higher-strength intermediate temper for conductors pulled through long or tight raceways. | 128 | 148 | 5 | 40 HB | 61.1 % IACS |
Strain hardened, extra hard | As-drawn hard wire, used mainly as an intermediate stage or where maximum tensile is required before final anneal. | 150 | 170 | 2.5 | 46 HB | 60.8 % IACS |
What is 8030-H12?
8030-H12 is 8030 in the H12 temper — light cold work when slightly higher tensile is needed but the wire must still bend and terminate easily. 8030-H12 has a yield strength of 85 MPa (12.3 ksi) and a tensile strength of 110 MPa (16 ksi) — weaker than 88% of aluminum grades. Elongation at break is 12% and the elastic modulus is 69 GPa (10 Msi). 8030-H12 has a density of 2.71 g/cm³ (0.0979 lb/in³), heavier than 51% of aluminum grades. It melts at 645°C (1,193 °F). O is the default condition FabDigit quotes; H12 is available on request or by drawing note.
Advantages
- High electrical conductivity — 61.5 % IACS, better than 97% of aluminum grades
- Conducts heat well — 228 W/m·K (131.7 BTU/hr·ft·°F), better than 95% of aluminum grades
- Forms and bends easily — 90/100, better than 93% of aluminum grades
- Readily welded — 85/100, better than 79% of aluminum grades
Limitations
- Difficult to machine — 25/100, worse than 96% of aluminum grades
- Low strength — 85 MPa (12.3 ksi), worse than 88% of aluminum grades
- Limited service temperature — 120°C (248 °F), worse than 79% of aluminum grades
8030-H12 properties
Typical room-temperature values for 8030-H12; 10 are specific to this condition. Other listed values are 8030 reference data and may not represent this condition. Bars are the position among aluminum grades.
Physical3
8030-H12 has a density of 2.71 g/cm³ (0.0979 lb/in³), heavier than 51% of aluminum grades. It melts at 645°C (1,193 °F).
Mechanical11
8030-H12 has a yield strength of 85 MPa (12.3 ksi) and a tensile strength of 110 MPa (16 ksi) — weaker than 88% of aluminum grades. Elongation at break is 12% and the elastic modulus is 69 GPa (10 Msi).
Thermal6
8030-H12 is rated for continuous service to 120°C (248 °F). It conducts heat at 228 W/m·K (131.7 BTU/hr·ft·°F), better than 95% of aluminum grades. Thermal expansion is 23.6 µm/m·K (13.1 µin/in·°F).
Electrical3
8030-H12 conducts electricity at 61.5 % IACS, better than 97% of aluminum grades.
Chemical & Environmental3
Corrosion resistance is good (62/100), better than 67% of aluminum grades.
Sustainability4
Producing a kilogram of 8030-H12 takes about 200 MJ of energy and emits 12.5 kg of CO₂ — less than 60% of aluminum grades. Typical recycled content is 25%.
Manufacturability8
8030-H12's machinability is poor (25/100, worse than 96% of aluminum grades); weldability excellent (85/100); formability excellent (90/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with 8030-H12
Is 8030 easy to machine?
Very soft and gummy — use sharp polished high-rake carbide, high speed and flood lubricant; rarely machined since the alloy is sold as rod, wire and cable.
Can 8030 be welded?
Readily joined by TIG/MIG (1100 or 4043 filler), friction and cold-pressure welding; in service, conductors are compression- or set-screw-terminated with AL/CU-rated connectors and joint compound rather than welded.
Can 8030 be formed, bent or molded?
Excellent drawability from continuously cast rod to fine wire with intermediate or final anneals; compacts and strands well with low spring-back in O/H2x tempers.
What surface finishes work on 8030?
Normally supplied bare or insulated (THHN/XHHW/XLPE); tin plating is used on lugs and terminations, anodizing is only fair because of Fe/Cu intermetallics.
8030 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 | ≤ 0.1 | 0.05 |
| Feprincipal strengthening/creep-resisting addition | 0.3 – 0.8 | 0.55 |
| Cu | 0.15 – 0.3 | 0.22 |
| Mg | ≤ 0.05 | 0.02 |
| Zn | ≤ 0.05 | 0.01 |
| Bboron treatment to remove transition metals and raise conductivity | 0 – 0.04 | 0.01 |
| Others (each) | ≤ 0.03 | — |
| Others (total) | ≤ 0.1 | — |
| Alremainder, ≈99.0–99.4% | balance | — |
8030-H12 — frequently asked
What is 8030-H12 used for?
8030-H12 is typically used for electrical building wire, conductor rod and cable. In short: creep-resistant conductor aluminum; 61.8% IACS building wire; very high formability, low strength.
What is the yield strength of 8030-H12?
8030-H12 has a typical yield strength of 85 MPa (12.3 ksi) and a tensile strength of 110 MPa (16 ksi) — weaker than 88% of aluminum grades. Strength varies by condition: see the 8 listed tempers.
Is 8030-H12 easy to machine?
Not especially — machinability is rated poor (25/100, worse than 96% of aluminum grades). Very soft and gummy — use sharp polished high-rake carbide, high speed and flood lubricant; rarely machined since the alloy is sold as rod, wire and cable.
Can 8030-H12 be welded?
Yes — weldability is rated excellent (85/100). Readily joined by TIG/MIG (1100 or 4043 filler), friction and cold-pressure welding; in service, conductors are compression- or set-screw-terminated with AL/CU-rated connectors and joint compound rather than welded.
What surface finishes work on 8030-H12?
Normally supplied bare or insulated (THHN/XHHW/XLPE); tin plating is used on lugs and terminations, anodizing is only fair because of Fe/Cu intermetallics.
Can 8030-H12 be formed, bent or molded?
Excellent drawability from continuously cast rod to fine wire with intermediate or final anneals; compacts and strands well with low spring-back in O/H2x tempers.
What is the maximum service temperature of 8030-H12?
8030-H12 is rated for continuous use to about 120°C (248 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between 8030-O and 8030-H19?
O is the default condition — default for AA-8000 building wire and flexible cable: maximum elongation and conductivity, lowest connection creep. H19: as-drawn hard wire, used mainly as an intermediate stage or where maximum tensile is required before final anneal. Yield strength is 35 MPa in O versus 150 MPa in H19.
Sources
- ASTM B800 — 8000 Series Aluminum Alloy Wire for Electrical Purposes, Annealed and Intermediate Tempers — ASTM International (2019)
- ASTM B801 — Concentric-Lay-Stranded Conductors of 8000 Series Aluminum Alloy Wire — ASTM International (2020)
- International Alloy Designation and Chemical Composition Limits for Wrought Aluminum (Teal Sheets) — The Aluminum Association (2018)
- ASM Handbook Vol.2 — Properties and Selection: Nonferrous Alloys — ASM International (1990)
- AA-8000 series aluminium building wire technical data — Southwire / Encore Wire (2022)
Property data is compiled from published supplier and standards handbooks and normalised for comparison. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.