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Steel WC11 vs WC5

Steel · grade comparison

Steel WC11 and WC5 are both steel grades. WC11 is the stronger of the two: yield strength 415 MPa (60.2 ksi) against 330 MPa (47.9 ksi) for WC5, about 26% more; tensile strength follows at 620 MPa (89.9 ksi) vs 550 MPa (79.8 ksi). WC11 is harder — 190 HB against 170 HB for WC5 — which matters for wear surfaces and threads. On the shop floor, WC11 forms better (25 vs 15 out of 100) and WC11 sits in a lower cost tier (standard, $$) than WC5 (premium, $$$).

WC11Choose it when strength drives the design, or when surface hardness matters.

WC11 vs WC5: properties

WC11WC5

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

205 GPa29.7 Msi
202 GPa29.3 Msi

Shear Modulus

80 GPa11.6 Msi
78 GPa11.3 Msi

Tensile Strength (Ultimate)

620 MPa89.9 ksi
550 MPa79.8 ksi

Yield Strength (0.2% offset)

415 MPa60.2 ksi
330 MPa47.9 ksi

Elongation at Break

22%
24%

Reduction in Area

52%
45%

Compressive Strength

415 MPa60.2 ksi
330 MPa47.9 ksi

Shear Strength

400 MPa58 ksi
380 MPa55.1 ksi

Fatigue Strength (Endurance Limit)

275 MPa39.9 ksi
235 MPa34.1 ksi

Fracture Toughness (K_IC)

90 MPa·√m81.9 ksi·√in
105 MPa·√m95.6 ksi·√in

Hardness, Brinell

190 HB
170 HB

Hardness, Rockwell B

92 HRB
88 HRB

Hardness, Vickers

200 HV
178 HV

Same in both: Bulk Modulus 160 GPa23.2 Msi · Poisson's Ratio 0.29 · Charpy V-Notch Impact (RT) 55 J40.6 ft·lbf

Physical

Density and transition temperatures.

Density

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

Same in both: Melting Point (Solidus) 1,425°C2,597 °F · Liquidus Temperature 1,505°C2,741 °F

Thermal

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

Thermal Conductivity

40 W/m·K23.1 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)

565°C1,049 °F
540°C1,004 °F

Min Service Temperature

-29°C-20 °F
-30°C-22 °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.

Same in both: Electrical Conductivity 7.8 % IACS · Electrical Resistivity 2.2×10⁻⁷ Ω·m8.66 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

16 / 100
13 / 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 Rating (AISI 1212 = 100 %)

55%
58%

Formability (cold)

25 / 100
15 / 100

Castability

72 / 100
70 / 100

Brazeability / Solderability

55 / 100
45 / 100

Polishability

50 / 100
45 / 100

Same in both: Machinability 55 / 100 · Weldability 60 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Water

45 L/kg5.4 gal/lb
55 L/kg6.6 gal/lb

Same in both: Embodied Energy (primary production) 26 MJ/kg11,178 BTU/lb · Embodied Carbon (primary production) 2 kg CO₂/kg · Typical Recycled Content 80%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

79 kN·m/kg
70 kN·m/kg

Specific Stiffness (E / density)

26.1 MN·m/kg
25.8 MN·m/kg

Modulus of Resilience

420 kJ/m³
270 kJ/m³

Thermal Diffusivity

10.8 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 scaleWC5WC11

Manufacturing and finishing

CapabilityWC11WC5
Default condition——
Relative cost$$ Standard$$$ Premium
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.

WC11 vs WC5 — frequently asked

Is WC11 stronger than WC5?

Yes. WC11 has a typical yield strength of 415 MPa (60.2 ksi) against 330 MPa (47.9 ksi) for WC5 — about 26% more. Tensile strength is 620 MPa (89.9 ksi) vs 550 MPa (79.8 ksi).

Which is cheaper, WC11 or WC5?

WC11 is the lower-cost material: it sits in the standard tier ($$) while WC5 is premium ($$$). Part price depends far more on geometry, tolerance and quantity than on raw stock — upload a CAD file for a live quote.

When should I choose WC11 over WC5?

Pick WC11 when strength drives the design, or when surface hardness matters.

Ready to make it?

Upload a CAD file and FabDigit prices the part in WC11 and WC5 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.