Steel GX9Ni5 vs WC1
Steel · grade comparison
Steel GX9Ni5 and WC1 are both steel grades. GX9Ni5 is the stronger of the two: yield strength 400 MPa (58 ksi) against 305 MPa (44.2 ksi) for WC1, about 31% more; tensile strength follows at 570 MPa (82.7 ksi) vs 520 MPa (75.4 ksi). In exchange, WC1 is the more ductile: elongation 28% versus 24% for GX9Ni5, and GX9Ni5 is harder (175 HB vs 160 HB). WC1 runs hotter in service (455°C vs 350°C continuous) and WC1 conducts heat better (42 W/m·K vs 33 W/m·K). On the shop floor, WC1 sits in a lower cost tier (standard, $$) than GX9Ni5 (premium, $$$).
GX9Ni5Choose it when strength drives the design.
WC1Choose it when the part is bent, formed or impact-loaded, or when the part sees heat.
GX9Ni5 vs WC1: propertiesHow to read these bars
- One bar per material. A full bar is the highest value among all steel grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
How to read these bars
- One bar per material. A full bar is the highest value among all steel grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
Mechanical
Strength, stiffness, ductility and hardness at room temperature.
Shear Modulus
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Reduction in Area
Compressive Strength
Shear Strength
Fatigue Strength (Endurance Limit)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Rockwell B
Hardness, Vickers
Same in both: Elastic (Young's) Modulus 205 GPa29.7 Msi · Bulk Modulus 160 GPa23.2 Msi · Poisson's Ratio 0.29 · Fracture Toughness (K_IC) 130 MPa·√m118 ksi·√in
Physical
Density and transition temperatures.
Melting Point (Solidus)
Liquidus Temperature
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
Thermal Expansion (CTE, 20–100 °C)
Max Service Temperature (continuous)
Min Service Temperature
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
Electrical Resistivity
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Corrosion Resistance
Galvanic Potential (seawater, vs SCE)
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Weldability
Castability
Brazeability / Solderability
Polishability
Same in both: Formability (cold) 20 / 100
Sustainability
Primary-production footprint per kilogram.
Embodied Energy (primary production)
Embodied Carbon (primary production)
Typical Recycled Content
Same in both: Embodied Water 55 L/kg6.6 gal/lb
Common Calculations
Ratios derived from the values above.
Specific Strength (UTS / density)
Modulus of Resilience
Thermal Diffusivity
Thermal Shock Resistance Index
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.
Manufacturing and finishing
| Capability | GX9Ni5 | WC1 |
|---|---|---|
| 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.
GX9Ni5 vs WC1 — frequently asked
Is GX9Ni5 stronger than WC1?
Yes. GX9Ni5 has a typical yield strength of 400 MPa (58 ksi) against 305 MPa (44.2 ksi) for WC1 — about 31% more. Tensile strength is 570 MPa (82.7 ksi) vs 520 MPa (75.4 ksi).
Which is cheaper, GX9Ni5 or WC1?
WC1 is the lower-cost material: it sits in the standard tier ($$) while GX9Ni5 is premium ($$$). 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, GX9Ni5 or WC1?
WC1. Its machinability rates good (58/100) against fair (50/100) for GX9Ni5; for welding the order is WC1 first (very good, 70/100) then GX9Ni5 (good, 65/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in GX9Ni5 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.