Steel 09CuPCrNi vs S700MC
Steel · grade comparison
Steel 09CuPCrNi and S700MC are both steel grades. S700MC is the stronger of the two: yield strength 740 MPa (107 ksi) against 300 MPa (43.5 ksi) for 09CuPCrNi, about 147% more; tensile strength follows at 810 MPa (117 ksi) vs 450 MPa (65.3 ksi). In exchange, 09CuPCrNi is the more ductile: elongation 31% versus 14% for S700MC, and S700MC is harder (245 HB vs 135 HB). 09CuPCrNi runs hotter in service (350°C vs 300°C continuous) and 09CuPCrNi conducts heat better (48 W/m·K vs 40 W/m·K). On the shop floor, 09CuPCrNi machines more easily (good vs fair) and 09CuPCrNi sits in a lower cost tier (budget, $) than S700MC (standard, $$).
09CuPCrNiChoose it when the part is bent, formed or impact-loaded, or when the part sees heat.
S700MCChoose it when strength drives the design.
09CuPCrNi vs S700MC: 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
Poisson's Ratio
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Reduction in Area
Compressive Strength
Shear Strength
Fatigue Strength (Endurance Limit)
Fracture Toughness (K_IC)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Rockwell B
Hardness, Vickers
Hardness, Rockwell C
Same in both: Bulk Modulus 160 GPa23.2 Msi
Physical
Density and transition temperatures.
Liquidus Temperature
Same in both: Density 7.85 g/cm³0.28 lb/in³ · Melting Point (Solidus) 1,460°C2,660 °F
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Latent Heat of Fusion
Max Service Temperature (continuous)
Same in both: Specific Heat Capacity 470 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 12 µm/m·K6.7 µin/in·°F · Min Service Temperature -40°C-40 °F
Electrical
Conductivity and insulation.
Electrical Conductivity
Electrical Resistivity
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Galvanic Potential (seawater, vs SCE)
Corrosion Resistance
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Weldability
Formability (cold)
Brazeability / Solderability
Polishability
Sustainability
Primary-production footprint per kilogram.
Embodied Water
Same in both: Embodied Energy (primary production) 25 MJ/kg10,748 BTU/lb · Embodied Carbon (primary production) 2 kg CO₂/kg · Typical Recycled Content 25%
Common Calculations
Ratios derived from the values above.
Specific Strength (UTS / density)
Specific Stiffness (E / density)
Modulus of Resilience
Thermal Diffusivity
Thermal Shock Resistance Index
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 | 09CuPCrNi | S700MC |
|---|---|---|
| Sheet metal | — | Yes |
| Default condition | — | TMCP |
| Relative cost | $ Budget | $$ Standard |
| Min. machined wall | — | — |
| Best machined surface | — | — |
| Black Oxide | — | Yes |
| Cerakote | — | Yes |
| Chrome Plating | — | Yes |
| E-Coating | — | Yes |
| Hot-Dip Galvanizing | — | Yes |
| Nickel Plating | — | Yes |
| PTFE Coating | — | Yes |
| Painting | — | Yes |
| Powder Coating | — | Yes |
| Tin Plating | — | Yes |
| Zinc Plating | — | Yes |
| Zinc-Flake (Dip-Spin) Coating | — | Yes |
| Zinc-Nickel Plating | — | Yes |
They share 9 finishes: Copper Plating, Electroless Nickel (EN), Epoxy Coating, Gold Plating, Hard Chrome Plating, Manganese Phosphate, Plasma Spray, Silver Plating, Zinc Phosphate.
09CuPCrNi vs S700MC — frequently asked
Is S700MC stronger than 09CuPCrNi?
Yes. S700MC has a typical yield strength of 740 MPa (107 ksi) against 300 MPa (43.5 ksi) for 09CuPCrNi — about 147% more. Tensile strength is 810 MPa (117 ksi) vs 450 MPa (65.3 ksi).
Which is cheaper, 09CuPCrNi or S700MC?
09CuPCrNi is the lower-cost material: it sits in the budget tier ($) while S700MC is standard ($$). 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, 09CuPCrNi or S700MC?
09CuPCrNi. Its machinability rates good (62/100) against fair (45/100) for S700MC; for welding the order is S700MC first (excellent, 85/100) then 09CuPCrNi (very good, 78/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in 09CuPCrNi and S700MC 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.