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Magnesium Alloy AZ61B AS-WELDED vs AZ61B-F

Magnesium Alloy · AZ61B temper comparison

AZ61B AS-WELDED and AZ61B-F are two conditions of the same magnesium alloy grade, AZ61B: AS-WELDED (as-welded deposit) versus F (as fabricated). The chemistry is identical, so every difference below comes from the condition. AZ61B-F is the stronger of the two: yield strength 230 MPa (33.4 ksi) against 160 MPa (23.2 ksi) for AZ61B AS-WELDED, about 44% more; tensile strength follows at 310 MPa (45 ksi) vs 250 MPa (36.3 ksi). AZ61B-F is the more ductile: elongation 16% versus 8% for AZ61B AS-WELDED, and AZ61B-F is harder (60 HB vs 55 HB).

AZ61B-FChoose it when strength drives the design, or when the part is bent, formed or impact-loaded.

AZ61B AS-WELDED vs AZ61B-F: properties

AZ61B AS-WELDEDAZ61B-F

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

250 MPa36.3 ksi
310 MPa45 ksi

Yield Strength (0.2% offset)

160 MPa23.2 ksi
230 MPa33.4 ksi

Elongation at Break

8%
16%

Compressive Strength

110 MPa16 ksi
130 MPa18.9 ksi

Shear Strength

125 MPa18.1 ksi
140 MPa20.3 ksi

Fatigue Strength (Endurance Limit)

80 MPa11.6 ksi
145 MPa21 ksi

Fracture Toughness (K_IC)

15 MPa·√m13.7 ksi·√in
20 MPa·√m18.2 ksi·√in

Charpy V-Notch Impact (RT)

3 J2.2 ft·lbf
5 J3.7 ft·lbf

Hardness, Brinell

55 HB
60 HB

Same in both: Elastic (Young's) Modulus 45 GPa6.5 Msi · Shear Modulus 17 GPa2.5 Msi · Bulk Modulus 45 GPa6.5 Msi · Poisson's Ratio 0.35

Physical

Density and transition temperatures.

Same in both: Density 1.8 g/cm³0.07 lb/in³ · Melting Point (Solidus) 510°C950 °F · Liquidus Temperature 620°C1,148 °F

Thermal

How each material carries heat and how hot it can run.

Thermal Conductivity

78 W/m·K45.1 BTU/hr·ft·°F
80 W/m·K46.2 BTU/hr·ft·°F

Same in both: Specific Heat Capacity 1,000 J/kg·K0.24 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 26 µm/m·K14.4 µin/in·°F · Latent Heat of Fusion 370 J/g159 BTU/lb · Max Service Temperature (continuous) 120°C248 °F · Min Service Temperature -100°C-148 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

13.5 % IACS
13.8 % IACS

Electrical Resistivity

1.28×10⁻⁷ Ω·m5.04 µΩ·in
1.25×10⁻⁷ Ω·m4.92 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

18 / 100
22 / 100

Same in both: Galvanic Potential (seawater, vs SCE) -1.55 V

Manufacturability

FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.

Machinability

90 / 100
95 / 100

Machinability Rating (AISI 1212 = 100 %)

380%
400%

Formability (cold)

12 / 100
25 / 100

Same in both: Weldability 70 / 100 · Castability 50 / 100 · Brazeability / Solderability 20 / 100 · Polishability 55 / 100

Sustainability

Primary-production footprint per kilogram.

Same in both: Embodied Energy (primary production) 350 MJ/kg150,473 BTU/lb · Embodied Carbon (primary production) 30 kg CO₂/kg · Embodied Water 500 L/kg59.9 gal/lb · Typical Recycled Content 25%

Strength versus weight

Yield strength against density for every magnesium alloy grade in the FabDigit library; the compared grades are highlighted. Up and left is stronger for its weight.

701001502001.41.51.61.71.8Density (g/cm³)Yield strength (MPa) — log scaleAZ61B

AZ61B AS-WELDED vs AZ61B-F — frequently asked

Is AZ61B-F stronger than AZ61B AS-WELDED?

Yes. AZ61B-F has a typical yield strength of 230 MPa (33.4 ksi) against 160 MPa (23.2 ksi) for AZ61B AS-WELDED — about 44% more. Tensile strength is 310 MPa (45 ksi) vs 250 MPa (36.3 ksi).

Which condition does FabDigit quote by default, AS-WELDED or F?

F is the default AZ61B condition in the FabDigit quote flow. The other condition is available on request or by drawing note — specify it in the material field or the part notes and the quote is priced for it.

Which is easier to machine, AZ61B AS-WELDED or AZ61B-F?

AZ61B-F, by a small margin. Both rate excellent for machinability — 95/100 against 90/100 for AZ61B AS-WELDED.

Ready to make it?

Upload a CAD file and FabDigit prices the part in AZ61B AS-WELDED and AZ61B-F side by side — material, machining time, tolerance and finish in one quote. Certified material data ships with the order on request.

Typical handbook values for the conditions named above, normalised for comparison. Hardness on non-Brinell scales is converted approximately for charting only. Request certified data with your order for design-critical properties.