Stainless Steel 1.4848 vs CT15C
Stainless Steel · grade comparison
Stainless Steel 1.4848 and CT15C are both stainless steel grades. 1.4848 is the stronger of the two: yield strength 280 MPa (40.6 ksi) against 240 MPa (34.8 ksi) for CT15C, about 17% more; tensile strength follows at 530 MPa (76.9 ksi) vs 490 MPa (71.1 ksi). In exchange, CT15C is the more ductile: elongation 30% versus 14% for 1.4848, and 1.4848 is harder (190 HB vs 170 HB). 1.4848 runs hotter in service (1,100°C vs 1,000°C continuous) and 1.4848 conducts heat better (14 W/m·K vs 12.5 W/m·K). On the shop floor, CT15C welds better (good vs fair) and 1.4848 sits in a lower cost tier (premium, $$$) than CT15C (high, $$$$).
1.4848Choose it when strength drives the design, or when the part sees heat.
CT15CChoose it when the part is bent, formed or impact-loaded, or when it will be welded.
1.4848 vs CT15C: 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.
Elastic (Young's) Modulus
Shear Modulus
Bulk Modulus
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Reduction in Area
Shear Strength
Fatigue Strength (Endurance Limit)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Rockwell B
Hardness, Vickers
Compressive Strength
Fracture Toughness (K_IC)
Same in both: Poisson's Ratio 0.29
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
Specific Heat Capacity
Max Service Temperature (continuous)
Min Service Temperature
Same in both: Thermal Expansion (CTE, 20–100 °C) 15 µm/m·K8.3 µin/in·°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)
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)
Castability
Brazeability / Solderability
Polishability
Sustainability
Primary-production footprint per kilogram.
Embodied Energy (primary production)
Embodied Carbon (primary production)
Embodied Water
Typical Recycled Content
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 | 1.4848 | CT15C |
|---|---|---|
| Default condition | — | — |
| Relative cost | $$$ Premium | $$$$ High |
| Min. machined wall | — | — |
| Best machined surface | — | — |
Both take the same 7 finishes: Electroless Nickel (EN), Epoxy Coating, Gold Plating, Hard Chrome Plating, Pickling, Plasma Spray, Silver Plating.
1.4848 vs CT15C — frequently asked
Is 1.4848 stronger than CT15C?
Yes. 1.4848 has a typical yield strength of 280 MPa (40.6 ksi) against 240 MPa (34.8 ksi) for CT15C — about 17% more. Tensile strength is 530 MPa (76.9 ksi) vs 490 MPa (71.1 ksi).
Which is cheaper, 1.4848 or CT15C?
1.4848 is the lower-cost material: it sits in the premium tier ($$$) while CT15C is high ($$$$). 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, 1.4848 or CT15C?
CT15C, by a small margin. Both rate poor for machinability — 30/100 against 25/100 for 1.4848; for welding the order is CT15C first (good, 60/100) then 1.4848 (fair, 45/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in 1.4848 and CT15C 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.