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Steel A216 WCA vs G24Mn6

Steel · grade comparison

Steel A216 WCA and G24Mn6 are both steel grades. G24Mn6 is the stronger of the two: yield strength 440 MPa (63.8 ksi) against 255 MPa (37 ksi) for A216 WCA, about 73% more; tensile strength follows at 660 MPa (95.7 ksi) vs 455 MPa (66 ksi). In exchange, A216 WCA is the more ductile: elongation 31% versus 18% for G24Mn6, and G24Mn6 is harder (195 HB vs 130 HB). A216 WCA runs hotter in service (425°C vs 350°C continuous) and A216 WCA conducts heat better (51 W/m·K vs 45 W/m·K). On the shop floor, A216 WCA machines more easily (68 vs 55 out of 100) and A216 WCA welds better (excellent vs good).

A216 WCAChoose it when the part is bent, formed or impact-loaded, or when the part sees heat.

G24Mn6Choose it when strength drives the design.

A216 WCA vs G24Mn6: properties

A216 WCAG24Mn6

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

200 GPa29 Msi
210 GPa30.5 Msi

Shear Modulus

78 GPa11.3 Msi
81 GPa11.7 Msi

Tensile Strength (Ultimate)

455 MPa66 ksi
660 MPa95.7 ksi

Yield Strength (0.2% offset)

255 MPa37 ksi
440 MPa63.8 ksi

Elongation at Break

31%
18%

Reduction in Area

50%
40%

Compressive Strength

255 MPa37 ksi
440 MPa63.8 ksi

Shear Strength

285 MPa41.3 ksi
420 MPa60.9 ksi

Fatigue Strength (Endurance Limit)

200 MPa29 ksi
260 MPa37.7 ksi

Fracture Toughness (K_IC)

90 MPa·√m81.9 ksi·√in
100 MPa·√m91 ksi·√in

Charpy V-Notch Impact (RT)

48 J35.4 ft·lbf
60 J44.3 ft·lbf

Hardness, Brinell

130 HB
195 HB

Hardness, Rockwell B

72 HRB
92 HRB

Hardness, Vickers

—
205 HV

Same in both: Bulk Modulus 160 GPa23.2 Msi · Poisson's Ratio 0.29

Physical

Density and transition temperatures.

Density

7.83 g/cm³0.28 lb/in³
7.85 g/cm³0.28 lb/in³

Liquidus Temperature

1,510°C2,750 °F
1,500°C2,732 °F

Same in both: Melting Point (Solidus) 1,425°C2,597 °F

Thermal

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

Thermal Conductivity

51 W/m·K29.5 BTU/hr·ft·°F
45 W/m·K26 BTU/hr·ft·°F

Thermal Expansion (CTE, 20–100 °C)

11.7 µm/m·K6.5 µin/in·°F
12.3 µm/m·K6.8 µin/in·°F

Latent Heat of Fusion

247 J/g106 BTU/lb
270 J/g116 BTU/lb

Max Service Temperature (continuous)

425°C797 °F
350°C662 °F

Min Service Temperature

-29°C-20 °F
-40°C-40 °F

Same in both: Specific Heat Capacity 470 J/kg·K0.11 BTU/lb·°F

Electrical

Conductivity and insulation.

Electrical Conductivity

10 % IACS
9 % IACS

Electrical Resistivity

1.7×10⁻⁷ Ω·m6.69 µΩ·in
1.9×10⁻⁷ Ω·m7.48 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.65 V
-0.62 V

Corrosion Resistance

10 / 100
11 / 100

Manufacturability

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

Machinability

68 / 100
55 / 100

Machinability Rating (AISI 1212 = 100 %)

70%
60%

Weldability

85 / 100
62 / 100

Formability (cold)

20 / 100
15 / 100

Polishability

40 / 100
50 / 100

Same in both: Castability 72 / 100 · Brazeability / Solderability 55 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

26 MJ/kg11,178 BTU/lb
24 MJ/kg10,318 BTU/lb

Embodied Carbon (primary production)

2.1 kg CO₂/kg
2 kg CO₂/kg

Embodied Water

45 L/kg5.4 gal/lb
40 L/kg4.8 gal/lb

Typical Recycled Content

85%
80%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

58 kN·m/kg
84 kN·m/kg

Specific Stiffness (E / density)

25.5 MN·m/kg
26.8 MN·m/kg

Modulus of Resilience

163 kJ/m³
461 kJ/m³

Thermal Diffusivity

13.9 mm²/s
12.2 mm²/s

Thermal Shock Resistance Index

10
11

Strength versus weight

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

2005001,0002,0007.588.5Density (g/cm³)Yield strength (MPa) — log scaleA216 WCAG24Mn6

Manufacturing and finishing

CapabilityA216 WCAG24Mn6
Default condition——
Relative cost$$ Standard$$ Standard
Min. machined wall——
Best machined surface——

Both take the same 9 finishes: Copper Plating, Electroless Nickel (EN), Epoxy Coating, Gold Plating, Hard Chrome Plating, Manganese Phosphate, Plasma Spray, Silver Plating, Zinc Phosphate.

A216 WCA vs G24Mn6 — frequently asked

Is G24Mn6 stronger than A216 WCA?

Yes. G24Mn6 has a typical yield strength of 440 MPa (63.8 ksi) against 255 MPa (37 ksi) for A216 WCA — about 73% more. Tensile strength is 660 MPa (95.7 ksi) vs 455 MPa (66 ksi).

Which is cheaper, A216 WCA or G24Mn6?

Both sit in the same relative cost tier ($$, standard); the part price will be decided by machining time, tolerance and quantity rather than by the material.

Which is easier to machine, A216 WCA or G24Mn6?

A216 WCA, by a small margin. Both rate good for machinability — 68/100 against 55/100 for G24Mn6; for welding the order is A216 WCA first (excellent, 85/100) then G24Mn6 (good, 62/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in A216 WCA and G24Mn6 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.