Magnesium Alloy AZ61A As Welded
Finish state
ASTM AZ61A · UNS M11610 · EN MgAl6Zn1
AZ61A is also sold as GTAW/GMAW filler wire (ER AZ61A) for AZ31B, AZ61A and AZ80A; use this state for as-welded joint estimates, and stress-relieve to avoid SCC.
Values for the As Welded condition
Other AZ61A tempers and conditions
AZ61A is listed in 4 conditions; see the grade overview at AZ61A.
- As Welded
- Forged F
- F
- As Extruded
Compare all 4 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
As WeldedThis page ER AZ61A filler wire deposit / welded joint | AZ61A is also sold as GTAW/GMAW filler wire (ER AZ61A) for AZ31B, AZ61A and AZ80A; use this state for as-welded joint estimates, and stress-relieve to avoid SCC. | 160 | 250 | 8 | 55 HB | 13 % IACS |
press forgings per ASTM B91 | Choose for press-forged AZ61A parts where a more isotropic flow structure is needed; slightly lower yield and ductility than extrusions. | 180 | 295 | 12 | 55 HB | 13.5 % IACS |
FDefault As fabricated | Standard stocked condition for AZ61A bar, rod, tube and profile per ASTM B107; pick it for general structural extrusions and machined parts. | 230 | 310 | 16 | 60 HB | — |
extruded bar / rod / tube / shape, ASTM B107 | Use for extruded product where the wrought texture of the extrusion is the delivered state; strength rises slightly in thin sections and small diameters. | 235 | 315 | 16 | 60 HB | 13.5 % IACS |
What is AZ61A As Welded?
AZ61A As Welded is AZ61A supplied in the As Welded condition — aZ61A is also sold as GTAW/GMAW filler wire (ER AZ61A) for AZ31B, AZ61A and AZ80A; use this state for as-welded joint estimates, and stress-relieve to avoid SCC. AZ61A As Welded has a yield strength of 160 MPa (23.2 ksi) and a tensile strength of 250 MPa (36.3 ksi) — stronger than 64% of magnesium alloy grades. Elongation at break is 8% and the elastic modulus is 45 GPa (6.53 Msi). AZ61A As Welded has a density of 1.8 g/cm³ (0.065 lb/in³), lighter than 63% of magnesium alloy grades. It melts at 510°C (950 °F). F is the default condition FabDigit quotes; As Welded is available on request or by drawing note.
Advantages
- Readily welded — 75/100, better than 91% of magnesium alloy grades
AZ61A As Welded properties
Typical room-temperature values for AZ61A As Welded; 20 are specific to this condition. Other listed values are AZ61A reference data and may not represent this condition. Bars are the position among magnesium alloy grades.
Physical3
AZ61A As Welded has a density of 1.8 g/cm³ (0.065 lb/in³), lighter than 63% of magnesium alloy grades. It melts at 510°C (950 °F).
Mechanical13
AZ61A As Welded has a yield strength of 160 MPa (23.2 ksi) and a tensile strength of 250 MPa (36.3 ksi) — stronger than 64% of magnesium alloy grades. Elongation at break is 8% and the elastic modulus is 45 GPa (6.53 Msi).
Thermal6
AZ61A As Welded is rated for continuous service to 130°C (266 °F). It conducts heat at 78 W/m·K (45.1 BTU/hr·ft·°F), worse than 58% of magnesium alloy grades. Thermal expansion is 26 µm/m·K (14.4 µin/in·°F).
Electrical3
AZ61A As Welded conducts electricity at 13 % IACS, worse than 68% of magnesium alloy grades.
Chemical & Environmental3
Corrosion resistance is poor (15/100), worse than 94% of magnesium alloy grades.
Sustainability4
Producing a kilogram of AZ61A As Welded takes about 340 MJ of energy and emits 27 kg of CO₂ — more than 59% of magnesium alloy grades. Typical recycled content is 25%.
Manufacturability8
AZ61A As Welded's machinability is excellent (92/100, worse than 86% of magnesium alloy grades); weldability very good (75/100); formability poor (18/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with AZ61A As Welded
Is AZ61A easy to machine?
Exceptional machinability — high speeds, low power, sharp tools with generous rake; use dry or mineral-oil coolant (never water-based), keep chips dry and have Class D powder on hand for fire risk.
Can AZ61A be welded?
GTAW/GMAW readily with ER AZ61A or AZ92A filler in argon or He-Ar; preheat thick sections, avoid crater cracks and stress-relieve (≈260 °C/15 min) welded assemblies to prevent chloride SCC.
Can AZ61A be formed, bent or molded?
Extrude and forge hot at ~300–400 °C; cold bending is very limited (large bend radii, ≥5t), so bending, stretching and deep drawing should be done warm.
What surface finishes work on AZ61A?
Not anodizable in the aluminium sense — clean/pickle, apply chrome-free or chromate conversion coat or a Dow 17/HAE/PEO anodic layer, then epoxy prime and paint; insulate all steel/brass fasteners to stop galvanic attack.
AZ61A 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 |
|---|---|---|
| Al | 5.8 – 7.2 | 6.5 |
| Zn | 0.4 – 1.5 | 1 |
| Mn0.15 % min (Mn min may be waived if Fe/Mn ratio limits are met) | ≥ 0.15 | 0.25 |
| Si | ≤ 0.1 | — |
| Cu | ≤ 0.05 | — |
| Ni | ≤ 0.01 | — |
| Fe | ≤ 0.01 | — |
| Other (each) | ≤ 0.05 | — |
| Others total | ≤ 0.3 | — |
| Mg | balance | — |
AZ61A As Welded — frequently asked
What is AZ61A As Welded used for?
AZ61A As Welded is typically used for aerospace brackets and fittings, bicycle wheel rims and frame tubing, extruded structural profiles, forged lever and linkage arms, portable equipment frames and welded magnesium tube assemblies. In short: higher-strength magnesium bar.
What is the yield strength of AZ61A As Welded?
AZ61A As Welded has a typical yield strength of 160 MPa (23.2 ksi) and a tensile strength of 250 MPa (36.3 ksi) — stronger than 64% of magnesium alloy grades. Strength varies by condition: see the 4 listed tempers.
Is AZ61A As Welded easy to machine?
Yes — machinability is rated excellent (92/100, worse than 86% of magnesium alloy grades). Exceptional machinability — high speeds, low power, sharp tools with generous rake; use dry or mineral-oil coolant (never water-based), keep chips dry and have Class D powder on hand for fire risk.
Can AZ61A As Welded be welded?
Yes — weldability is rated very good (75/100). GTAW/GMAW readily with ER AZ61A or AZ92A filler in argon or He-Ar; preheat thick sections, avoid crater cracks and stress-relieve (≈260 °C/15 min) welded assemblies to prevent chloride SCC.
What surface finishes work on AZ61A As Welded?
Not anodizable in the aluminium sense — clean/pickle, apply chrome-free or chromate conversion coat or a Dow 17/HAE/PEO anodic layer, then epoxy prime and paint; insulate all steel/brass fasteners to stop galvanic attack.
Can AZ61A As Welded be formed, bent or molded?
Extrude and forge hot at ~300–400 °C; cold bending is very limited (large bend radii, ≥5t), so bending, stretching and deep drawing should be done warm.
What is the maximum service temperature of AZ61A As Welded?
AZ61A As Welded is rated for continuous use to about 130°C (266 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
Can FabDigit make parts in AZ61A As Welded?
Yes — AZ61A As Welded is available for CNC machining and sheet metal with instant online pricing. Upload a STEP file to get a price and a DFM check.
Sources
- ASTM B107/B107M — Magnesium-Alloy Extruded Bars, Rods, Profiles, Tubes, and Wire — ASTM International (2013)
- ASTM B91 — Magnesium-Alloy Forgings — ASTM International (2017)
- AWS A5.19 / SFA-5.19 — Magnesium Alloy Welding Electrodes and Rods — AWS (1992)
- ASM Handbook Vol. 2 — Properties and Selection: Nonferrous Alloys and Special-Purpose Materials — ASM International (1990)
- ASM Specialty Handbook: Magnesium and Magnesium Alloys — ASM International (1999)
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.