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Steel A356 Grade 10 vs WC1

Steel · grade comparison

Steel A356 Grade 10 and WC1 are both steel grades. A356 Grade 10 is the stronger of the two: yield strength 500 MPa (72.5 ksi) against 305 MPa (44.2 ksi) for WC1, about 64% more; tensile strength follows at 655 MPa (95 ksi) vs 520 MPa (75.4 ksi). In exchange, WC1 is the more ductile: elongation 28% versus 18% for A356 Grade 10, and A356 Grade 10 is harder (200 HB vs 160 HB). A356 Grade 10 runs hotter in service (510°C vs 455°C continuous) and WC1 conducts electricity better (8.5 % IACS vs 7.5 % IACS). On the shop floor, WC1 machines more easily (good vs fair), WC1 welds better (very good vs fair), and WC1 sits in a lower cost tier (standard, $$) than A356 Grade 10 (premium, $$$).

A356 Grade 10Choose it when strength drives the design, or when the part sees heat.

WC1Choose it when the part is bent, formed or impact-loaded, or when the part is machined in volume.

A356 Grade 10 vs WC1: properties

A356 Grade 10WC1

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

207 GPa30 Msi
205 GPa29.7 Msi

Bulk Modulus

165 GPa23.9 Msi
160 GPa23.2 Msi

Tensile Strength (Ultimate)

655 MPa95 ksi
520 MPa75.4 ksi

Yield Strength (0.2% offset)

500 MPa72.5 ksi
305 MPa44.2 ksi

Elongation at Break

18%
28%

Reduction in Area

45%
48%

Shear Strength

420 MPa60.9 ksi
340 MPa49.3 ksi

Fatigue Strength (Endurance Limit)

290 MPa42.1 ksi
210 MPa30.5 ksi

Fracture Toughness (K_IC)

120 MPa·√m109 ksi·√in
130 MPa·√m118 ksi·√in

Charpy V-Notch Impact (RT)

55 J40.6 ft·lbf
50 J36.9 ft·lbf

Hardness, Brinell

200 HB
160 HB

Hardness, Rockwell C

18 HRC
—

Compressive Strength

—
300 MPa43.5 ksi

Hardness, Rockwell B

—
84 HRB

Hardness, Vickers

—
168 HV

Same in both: Shear Modulus 80 GPa11.6 Msi · Poisson's Ratio 0.29

Physical

Density and transition temperatures.

Melting Point (Solidus)

1,420°C2,588 °F
1,425°C2,597 °F

Liquidus Temperature

1,500°C2,732 °F
1,505°C2,741 °F

Same in both: Density 7.85 g/cm³0.28 lb/in³

Thermal

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

Thermal Conductivity

38 W/m·K22 BTU/hr·ft·°F
42 W/m·K24.3 BTU/hr·ft·°F

Thermal Expansion (CTE, 20–100 °C)

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

Max Service Temperature (continuous)

510°C950 °F
455°C851 °F

Min Service Temperature

-30°C-22 °F
-29°C-20 °F

Same in both: Specific Heat Capacity 470 J/kg·K0.11 BTU/lb·°F · Latent Heat of Fusion 270 J/g116 BTU/lb

Electrical

Conductivity and insulation.

Electrical Conductivity

7.5 % IACS
8.5 % IACS

Electrical Resistivity

2.3×10⁻⁷ Ω·m9.06 µΩ·in
2×10⁻⁷ Ω·m7.87 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

16 / 100
12 / 100

Same in both: Galvanic Potential (seawater, vs SCE) -0.61 V

Manufacturability

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

Machinability

48 / 100
58 / 100

Machinability Rating (AISI 1212 = 100 %)

50%
60%

Weldability

45 / 100
70 / 100

Formability (cold)

10 / 100
20 / 100

Brazeability / Solderability

40 / 100
55 / 100

Polishability

55 / 100
50 / 100

Same in both: Castability 70 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

30 MJ/kg12,898 BTU/lb
26 MJ/kg11,178 BTU/lb

Embodied Carbon (primary production)

2.3 kg CO₂/kg
2.1 kg CO₂/kg

Same in both: Embodied Water 55 L/kg6.6 gal/lb · Typical Recycled Content 80%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

83 kN·m/kg
66 kN·m/kg

Specific Stiffness (E / density)

26.4 MN·m/kg
26.1 MN·m/kg

Modulus of Resilience

604 kJ/m³
227 kJ/m³

Thermal Diffusivity

10.3 mm²/s
11.4 mm²/s

Thermal Shock Resistance Index

10
9

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 scaleWC1A356 Grade 10

Manufacturing and finishing

CapabilityA356 Grade 10WC1
Default condition——
Relative cost$$$ Premium$$ 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.

A356 Grade 10 vs WC1 — frequently asked

Is A356 Grade 10 stronger than WC1?

Yes. A356 Grade 10 has a typical yield strength of 500 MPa (72.5 ksi) against 305 MPa (44.2 ksi) for WC1 — about 64% more. Tensile strength is 655 MPa (95 ksi) vs 520 MPa (75.4 ksi).

Which is cheaper, A356 Grade 10 or WC1?

WC1 is the lower-cost material: it sits in the standard tier ($$) while A356 Grade 10 is premium ($$$). Part price depends far more on geometry, tolerance and quantity than on raw stock — upload a CAD file for a live quote.

Which is easier to machine, A356 Grade 10 or WC1?

WC1. Its machinability rates good (58/100) against fair (48/100) for A356 Grade 10; for welding the order is WC1 first (very good, 70/100) then A356 Grade 10 (fair, 45/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in A356 Grade 10 and WC1 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.