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Steel G9Ni10 vs WC1

Steel · grade comparison

Steel G9Ni10 and WC1 are both steel grades. G9Ni10 is the stronger of the two: yield strength 330 MPa (47.9 ksi) against 305 MPa (44.2 ksi) for WC1, about 8% more. WC1 runs hotter in service (455°C vs 300°C continuous). On the shop floor, WC1 sits in a lower cost tier (standard, $$) than G9Ni10 (premium, $$$).

G9Ni10Choose it when strength drives the design.

WC1Choose it when the part sees heat, or when cost is the deciding factor.

G9Ni10 vs WC1: properties

G9Ni10WC1

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Bulk Modulus

162 GPa23.5 Msi
160 GPa23.2 Msi

Tensile Strength (Ultimate)

540 MPa78.3 ksi
520 MPa75.4 ksi

Yield Strength (0.2% offset)

330 MPa47.9 ksi
305 MPa44.2 ksi

Reduction in Area

50%
48%

Compressive Strength

540 MPa78.3 ksi
300 MPa43.5 ksi

Shear Strength

330 MPa47.9 ksi
340 MPa49.3 ksi

Fatigue Strength (Endurance Limit)

230 MPa33.4 ksi
210 MPa30.5 ksi

Fracture Toughness (K_IC)

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

Charpy V-Notch Impact (RT)

110 J81.1 ft·lbf
50 J36.9 ft·lbf

Same in both: Elastic (Young's) Modulus 205 GPa29.7 Msi · Shear Modulus 80 GPa11.6 Msi · Poisson's Ratio 0.29 · Elongation at Break 28% · Hardness, Brinell 160 HB · Hardness, Rockwell B 84 HRB · Hardness, Vickers 168 HV

Physical

Density and transition temperatures.

Melting Point (Solidus)

1,440°C2,624 °F
1,425°C2,597 °F

Same in both: Density 7.85 g/cm³0.28 lb/in³ · Liquidus Temperature 1,505°C2,741 °F

Thermal

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

Specific Heat Capacity

460 J/kg·K0.11 BTU/lb·°F
470 J/kg·K0.11 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

11.6 µm/m·K6.4 µin/in·°F
12.2 µm/m·K6.8 µin/in·°F

Latent Heat of Fusion

250 J/g107 BTU/lb
270 J/g116 BTU/lb

Max Service Temperature (continuous)

300°C572 °F
455°C851 °F

Min Service Temperature

-70°C-94 °F
-29°C-20 °F

Same in both: Thermal Conductivity 42 W/m·K24.3 BTU/hr·ft·°F

Electrical

Conductivity and insulation.

Electrical Conductivity

8 % IACS
8.5 % IACS

Electrical Resistivity

2.2×10⁻⁷ Ω·m8.66 µΩ·in
2×10⁻⁷ Ω·m7.87 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

13 / 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

55 / 100
58 / 100

Formability (cold)

15 / 100
20 / 100

Castability

65 / 100
70 / 100

Brazeability / Solderability

40 / 100
55 / 100

Polishability

55 / 100
50 / 100

Same in both: Machinability Rating (AISI 1212 = 100 %) 60% · Weldability 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)

2.2 kg CO₂/kg
2.1 kg CO₂/kg

Embodied Water

60 L/kg7.2 gal/lb
55 L/kg6.6 gal/lb

Typical Recycled Content

75%
80%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

69 kN·m/kg
66 kN·m/kg

Modulus of Resilience

266 kJ/m³
227 kJ/m³

Thermal Diffusivity

11.6 mm²/s
11.4 mm²/s

Thermal Shock Resistance Index

10
9

Same in both: Specific Stiffness (E / density) 26.1 MN·m/kg

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 scaleWC1G9Ni10

Manufacturing and finishing

CapabilityG9Ni10WC1
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.

G9Ni10 vs WC1 — frequently asked

Is G9Ni10 stronger than WC1?

Yes. G9Ni10 has a typical yield strength of 330 MPa (47.9 ksi) against 305 MPa (44.2 ksi) for WC1 — about 8% more. Tensile strength is 540 MPa (78.3 ksi) vs 520 MPa (75.4 ksi).

Which is cheaper, G9Ni10 or WC1?

WC1 is the lower-cost material: it sits in the standard tier ($$) while G9Ni10 is premium ($$$). 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 G9Ni10 over WC1?

Pick G9Ni10 when strength drives the design. Pick WC1 when the part sees heat, or when cost is the deciding factor.

Ready to make it?

Upload a CAD file and FabDigit prices the part in G9Ni10 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.