Magnesium Alloy EN-MC21110
EN-MC21110
EN-MC21110 (MgAl8Zn1) is the EN 1753 casting designation for the AZ91-type Mg-Al-Zn alloy, chemically and mechanically equivalent to ASTM AZ91D and supplied in F, F-SC, T4 and T6 conditions.
Reference datasheet — EN-MC21110 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 F condition
EN-MC21110 tempers and conditions
EN-MC21110 is supplied in 4 conditions, soft to hard. F is the default FabDigit quotes; the values on this page are for it.
Compare all 4 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
Solution heat treated and naturally aged | Pick when maximum ductility and impact toughness are required from a sand or permanent-mould casting; not applicable to gas-porous die castings (blistering). | 90 | 275 | 12 | 55 HB | 10 % IACS |
F | Choose for larger, thick-section sand or gravity-cast parts where die casting is not economical; coarser grain gives lower strength than HPDC. | 97 | 165 | 2.5 | 60 HB | 72 W/m·K |
FDefault As fabricated | Default condition for the overwhelming majority of AZ91 parts: thin-wall HPDC housings, covers and brackets used straight from the die. | 110 | 200 | 3 | 65 HB | 12 % IACS |
Solution heat treated and artificially aged | Use for sand/permanent-mould castings that need the highest yield strength and hardness, accepting low elongation. | 145 | 275 | 3 | 70 HB | 72 W/m·K |
What is EN-MC21110?
EN-MC21110 (MgAl8Zn1) is the EN 1753 casting designation for the AZ91-type Mg-Al-Zn alloy, chemically and mechanically equivalent to ASTM AZ91D and supplied in F, F-SC, T4 and T6 conditions. At 1.81 g/cm³ with a 45 GPa modulus it suits thin-wall die-cast housings for European automotive and electronics programs: 110 MPa yield, 200 MPa tensile, 3% elongation, 65 HB, 72 W/m·K and 12% IACS. It melts at 470 °C and is limited to about 120 °C in service, with formability rated 15 (casting only) and corrosion resistance 30, so conversion coating or PEO plus paint is mandatory. EN-MC21110 has a density of 1.81 g/cm³ (0.0654 lb/in³), heavier than 58% of magnesium alloy grades. It melts at 470°C (878 °F). EN-MC21110 has a yield strength of 110 MPa (16 ksi) and a tensile strength of 200 MPa (29 ksi) — weaker than 83% of magnesium alloy grades. Elongation at break is 3% and the elastic modulus is 45 GPa (6.53 Msi).
What is EN-MC21110 used for?
- Die-cast automotive housings for the EU market
- Steering column and instrument panel brackets
- Electronics and camera housings
- Power tool casings
- Seat frame and interior structural castings
- Thin-wall covers and enclosures
Limitations
- Low fracture toughness — 12 MPa·√m (10.9 ksi·√in), worse than 92% of magnesium alloy grades
- Limited ductility — 3%, worse than 85% of magnesium alloy grades
- Low strength — 110 MPa (16 ksi), worse than 83% of magnesium alloy grades
- Limited service temperature — 120°C (248 °F), worse than 78% of magnesium alloy grades
- Low electrical conductivity — 12 % IACS, worse than 78% of magnesium alloy grades
EN-MC21110 properties
Typical room-temperature values for EN-MC21110-F; bars are the position among magnesium alloy grades.
Physical3
EN-MC21110 has a density of 1.81 g/cm³ (0.0654 lb/in³), heavier than 58% of magnesium alloy grades. It melts at 470°C (878 °F).
Mechanical14
EN-MC21110 has a yield strength of 110 MPa (16 ksi) and a tensile strength of 200 MPa (29 ksi) — weaker than 83% of magnesium alloy grades. Elongation at break is 3% and the elastic modulus is 45 GPa (6.53 Msi).
Thermal6
EN-MC21110 is rated for continuous service to 120°C (248 °F). It conducts heat at 72 W/m·K (41.6 BTU/hr·ft·°F), worse than 69% of magnesium alloy grades. Thermal expansion is 26 µm/m·K (14.4 µin/in·°F).
Electrical3
EN-MC21110 conducts electricity at 12 % IACS, worse than 78% of magnesium alloy grades.
Chemical & Environmental3
Corrosion resistance is poor (30/100), better than 88% of magnesium alloy grades.
Sustainability4
Producing a kilogram of EN-MC21110 takes about 300 MJ of energy and emits 32 kg of CO₂ — less than 92% of magnesium alloy grades. Typical recycled content is 30%.
Manufacturability8
EN-MC21110's machinability is excellent (95/100, better than 54% of magnesium alloy grades); weldability good (65/100); formability poor (15/100).
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 magnesium alloy family
Yield strength against density for every magnesium alloy grade FabDigit runs. EN-MC21110 is highlighted; hover a dot for its name, or open the interactive family chart.
Working with EN-MC21110
Is EN-MC21110 easy to machine?
Cuts faster and with lower power than any other structural metal — use sharp, high-rake carbide tools, high speeds and dry or mineral-oil cutting; never use water-based coolant on fine chips and keep chips/fines controlled against fire.
Can EN-MC21110 be welded?
Sand/permanent-mould castings weld well by GTAW/GMAW with AZ92A or AZ101A filler and preheat for thick sections; HPDC parts usually cannot be fusion welded because entrapped gas causes porosity and blistering.
Can EN-MC21110 be formed, bent or molded?
Excellent hot-chamber and cold-chamber die-casting alloy — long fluid life, low die soldering, thin walls down to ~1 mm; protect the melt with SF6-replacement cover gas and control Fe/Ni/Cu for corrosion performance.
EN-MC21110 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 | 8.3 – 9.7 | 9 |
| Zn | 0.35 – 1 | 0.7 |
| Mn | 0.15 – 0.5 | 0.25 |
| Si | ≤ 0.1 | |
| Cuhigh-purity (D-type) limit 0.025 | ≤ 0.03 | |
| Fehigh-purity limit 0.004; critical for corrosion | ≤ 0.01 | |
| Nihigh-purity limit 0.001 | ≤ 0 | |
| Others (each) | ≤ 0.01 | |
| Others (total) | ≤ 0.02 | |
| Mg | balance |
What surface finishes work on EN-MC21110?
Requires chromate-free conversion coating, plasma-electrolytic oxidation or e-coat plus primer/topcoat; isolate steel and aluminium fasteners with sealants or coated inserts to avoid galvanic attack.
Equivalent designations
Standards and trade names that resolve to Magnesium Alloy EN-MC21110 in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- EN / DIN / Werkstoff-Nr.
- MgAl8Zn1
- Also called
- AZ91
How much does EN-MC21110 cost?
EN-MC21110 is a standard-cost magnesium alloy ($$), 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.
EN-MC21110 — frequently asked
What is EN-MC21110 used for?
EN-MC21110 is typically used for die-cast automotive housings for the EU market, steering column and instrument panel brackets, electronics and camera housings, power tool casings, seat frame and interior structural castings and thin-wall covers and enclosures. In short: EN equivalent of AZ91D; thin-wall die-casting workhorse; lowest-density structural casting metal.
What is the yield strength of EN-MC21110?
EN-MC21110 has a typical yield strength of 110 MPa (16 ksi) and a tensile strength of 200 MPa (29 ksi) — weaker than 83% of magnesium alloy grades. Strength varies by condition: see the 4 listed tempers.
Is EN-MC21110 easy to machine?
Yes — machinability is rated excellent (95/100, better than 54% of magnesium alloy grades). Cuts faster and with lower power than any other structural metal — use sharp, high-rake carbide tools, high speeds and dry or mineral-oil cutting; never use water-based coolant on fine chips and keep chips/fines controlled against fire.
Can EN-MC21110 be welded?
Yes — weldability is rated good (65/100). Sand/permanent-mould castings weld well by GTAW/GMAW with AZ92A or AZ101A filler and preheat for thick sections; HPDC parts usually cannot be fusion welded because entrapped gas causes porosity and blistering.
What surface finishes work on EN-MC21110?
Requires chromate-free conversion coating, plasma-electrolytic oxidation or e-coat plus primer/topcoat; isolate steel and aluminium fasteners with sealants or coated inserts to avoid galvanic attack.
Can EN-MC21110 be formed, bent or molded?
Excellent hot-chamber and cold-chamber die-casting alloy — long fluid life, low die soldering, thin walls down to ~1 mm; protect the melt with SF6-replacement cover gas and control Fe/Ni/Cu for corrosion performance.
What is the maximum service temperature of EN-MC21110?
EN-MC21110 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 EN-MC21110-F and EN-MC21110-T6?
F is the default condition — default condition for the overwhelming majority of AZ91 parts: thin-wall HPDC housings, covers and brackets used straight from the die. T6: use for sand/permanent-mould castings that need the highest yield strength and hardness, accepting low elongation. Yield strength is 110 MPa in F versus 145 MPa in T6.
How much does EN-MC21110 cost?
EN-MC21110 is a standard-cost magnesium alloy ($$), 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
- EN 1753 — Magnesium and magnesium alloys: magnesium alloy ingots and castings — CEN (2019)
- ASTM B94 — Standard Specification for Magnesium-Alloy Die Castings — ASTM International (2018)
- ASTM B80 — Magnesium-Alloy Sand Castings — ASTM International (2015)
- ASM Specialty Handbook: Magnesium and Magnesium Alloys — ASM International (1999)
- ASM Handbook Vol.2 — Properties and Selection: Nonferrous Alloys — ASM International (1990)
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.