Steel CPM 10V vs CPM S30V
Steel · grade comparison
Steel CPM 10V and CPM S30V are both steel grades, both tool steel. CPM S30V is the stronger of the two: yield strength 700 MPa (102 ksi) against 560 MPa (81.2 ksi) for CPM 10V, about 25% more; tensile strength follows at 950 MPa (138 ksi) vs 830 MPa (120 ksi). In exchange, CPM 10V is the more ductile: elongation 12% versus 8% for CPM S30V, and CPM 10V is harder (255 HB vs 240 HB). CPM 10V runs hotter in service (480°C vs 400°C continuous).
CPM 10VChoose it when the part is bent, formed or impact-loaded, or when the part sees heat.
CPM S30VChoose it when strength drives the design.
CPM 10V vs CPM S30V: 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.
Elastic (Young's) Modulus
Shear Modulus
Bulk Modulus
Poisson's Ratio
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Reduction in Area
Shear Strength
Fatigue Strength (Endurance Limit)
Fracture Toughness (K_IC)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Rockwell B
Hardness, Rockwell C
Hardness, Vickers
Same in both: Compressive Strength 1,900 MPa276 ksi
Physical
Density and transition temperatures.
Density
Melting Point (Solidus)
Liquidus Temperature
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Thermal Expansion (CTE, 20–100 °C)
Max Service Temperature (continuous)
Same in both: Specific Heat Capacity 460 J/kg·K0.11 BTU/lb·°F · Min Service Temperature -70°C-94 °F
Electrical
Conductivity and insulation.
Electrical Conductivity
Same in both: Electrical Resistivity 6.5×10⁻⁷ Ω·m25.6 µΩ·in
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Corrosion Resistance
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Weldability
Brazeability / Solderability
Polishability
Same in both: Machinability Rating (AISI 1212 = 100 %) 20% · Formability (cold) 12 / 100
Sustainability
Primary-production footprint per kilogram.
Embodied Energy (primary production)
Typical Recycled Content
Embodied Water
Same in both: Embodied Carbon (primary production) 5.5 kg CO₂/kg
Common Calculations
Ratios derived from the values above.
Specific Strength (UTS / density)
Specific Stiffness (E / density)
Modulus of Resilience
Thermal Diffusivity
Same in both: Thermal Shock Resistance Index 8
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 | CPM 10V | CPM S30V |
|---|---|---|
| Default condition | Annealed | Annealed |
| Relative cost | $$$ Premium | $$$ Premium |
| Min. machined wall | 0.8 mm | 0.8 mm |
| Best machined surface | Ra 1.6 µm | Ra 1.6 µm |
Both are offered for CNC machining. Both take the same 38 finishes: AlCrN, AlTiN, Black Oxide, CVD Al2O3, CVD TiCN, CVD TiN, Cerakote, Chrome Plating, Copper Plating, CrN, DLC, E-Coating and 26 more.
CPM 10V vs CPM S30V — frequently asked
Is CPM S30V stronger than CPM 10V?
Yes. CPM S30V has a typical yield strength of 700 MPa (102 ksi) against 560 MPa (81.2 ksi) for CPM 10V — about 25% more. Tensile strength is 950 MPa (138 ksi) vs 830 MPa (120 ksi).
Which is cheaper, CPM 10V or CPM S30V?
Both sit in the same relative cost tier ($$$, premium); the part price will be decided by machining time, tolerance and quantity rather than by the material.
Which is easier to machine, CPM 10V or CPM S30V?
CPM 10V, by a small margin. Both rate poor for machinability — 25/100 against 20/100 for CPM S30V; for welding the order is CPM 10V first (poor, 15/100) then CPM S30V (not recommended, 10/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in CPM 10V and CPM S30V 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.