Stainless Steel 1.4518 vs CE8MN
Stainless Steel · grade comparison
Stainless Steel 1.4518 and CE8MN are both stainless steel grades. CE8MN is the stronger of the two: yield strength 500 MPa (72.5 ksi) against 260 MPa (37.7 ksi) for 1.4518, about 92% more; tensile strength follows at 720 MPa (104 ksi) vs 530 MPa (76.9 ksi). In exchange, 1.4518 is the more ductile: elongation 48% versus 30% for CE8MN, and CE8MN is harder (210 HB vs 150 HB). 1.4518 runs hotter in service (550°C vs 315°C continuous). On the shop floor, 1.4518 welds better (excellent vs good).
1.4518Choose it when the part is bent, formed or impact-loaded, or when the part sees heat.
CE8MNChoose it when strength drives the design.
1.4518 vs CE8MN: propertiesHow to read these bars
- One bar per material. A full bar is the highest value among all stainless 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 stainless 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
Bulk Modulus
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: Elastic (Young's) Modulus 195 GPa28.3 Msi · Poisson's Ratio 0.3
Physical
Density and transition temperatures.
Density
Melting Point (Solidus)
Liquidus Temperature
Thermal
How each material carries heat and how hot it can run.
Specific Heat Capacity
Thermal Expansion (CTE, 20–100 °C)
Max Service Temperature (continuous)
Min Service Temperature
Same in both: Thermal Conductivity 15 W/m·K8.7 BTU/hr·ft·°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).
Galvanic Potential (seawater, vs SCE)
Same in both: Corrosion Resistance 72 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Weldability
Formability (cold)
Castability
Brazeability / Solderability
Polishability
Sustainability
Primary-production footprint per kilogram.
Embodied Energy (primary production)
Embodied Water
Typical Recycled Content
Same in both: Embodied Carbon (primary production) 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
Thermal Shock Resistance Index
Strength versus weight
Yield strength against density for every stainless steel grade in the FabDigit library; the compared grades are highlighted. Up and left is stronger for its weight.
Manufacturing and finishing
| Capability | 1.4518 | CE8MN |
|---|---|---|
| Default condition | — | — |
| Relative cost | $$$ Premium | $$$ Premium |
| Min. machined wall | — | — |
| Best machined surface | — | — |
Both take the same 7 finishes: Electroless Nickel (EN), Epoxy Coating, Gold Plating, Hard Chrome Plating, Pickling, Plasma Spray, Silver Plating.
1.4518 vs CE8MN — frequently asked
Is CE8MN stronger than 1.4518?
Yes. CE8MN has a typical yield strength of 500 MPa (72.5 ksi) against 260 MPa (37.7 ksi) for 1.4518 — about 92% more. Tensile strength is 720 MPa (104 ksi) vs 530 MPa (76.9 ksi).
Which is cheaper, 1.4518 or CE8MN?
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, 1.4518 or CE8MN?
1.4518. Its machinability rates fair (40/100) against poor (32/100) for CE8MN; for welding the order is 1.4518 first (excellent, 88/100) then CE8MN (good, 65/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in 1.4518 and CE8MN 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.