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Stainless Steel 1.4849 vs CT15C

Stainless Steel · grade comparison

Stainless Steel 1.4849 and CT15C are both stainless steel grades. Both yield at about 250 MPa — strength does not separate them. CT15C is the more ductile: elongation 30% versus 10% for 1.4849, and 1.4849 is harder (180 HB vs 170 HB). CT15C is stiffer (193 GPa vs 170 GPa). On the shop floor, CT15C machines more easily (30 vs 20 out of 100).

CT15CChoose it when the part is bent, formed or impact-loaded, or when the part is machined in volume.

1.4849 vs CT15C: properties

1.4849CT15C

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

170 GPa24.7 Msi
193 GPa28 Msi

Shear Modulus

66 GPa9.6 Msi
75 GPa10.9 Msi

Bulk Modulus

140 GPa20.3 Msi
153 GPa22.2 Msi

Yield Strength (0.2% offset)

250 MPa36.3 ksi
240 MPa34.8 ksi

Elongation at Break

10%
30%

Reduction in Area

10%
35%

Shear Strength

300 MPa43.5 ksi
350 MPa50.8 ksi

Fatigue Strength (Endurance Limit)

190 MPa27.6 ksi
180 MPa26.1 ksi

Charpy V-Notch Impact (RT)

20 J14.8 ft·lbf
45 J33.2 ft·lbf

Hardness, Brinell

180 HB
170 HB

Compressive Strength

—
245 MPa35.5 ksi

Fracture Toughness (K_IC)

—
140 MPa·√m127 ksi·√in

Hardness, Rockwell B

—
87 HRB

Hardness, Vickers

—
180 HV

Same in both: Poisson's Ratio 0.29 · Tensile Strength (Ultimate) 490 MPa71.1 ksi

Physical

Density and transition temperatures.

Melting Point (Solidus)

1,320°C2,408 °F
1,340°C2,444 °F

Liquidus Temperature

1,385°C2,525 °F
1,400°C2,552 °F

Same in both: Density 7.9 g/cm³0.29 lb/in³

Thermal

How each material carries heat and how hot it can run.

Thermal Conductivity

13.5 W/m·K7.8 BTU/hr·ft·°F
12.5 W/m·K7.2 BTU/hr·ft·°F

Specific Heat Capacity

500 J/kg·K0.12 BTU/lb·°F
470 J/kg·K0.11 BTU/lb·°F

Max Service Temperature (continuous)

1,050°C1,922 °F
1,000°C1,832 °F

Min Service Temperature

-50°C-58 °F
-100°C-148 °F

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.

Same in both: Electrical Conductivity 1.7 % IACS · Electrical Resistivity 1×10⁻⁶ Ω·m39.4 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.1 V
-0.15 V

Corrosion Resistance

68 / 100
70 / 100

Manufacturability

FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.

Machinability

20 / 100
30 / 100

Machinability Rating (AISI 1212 = 100 %)

15%
30%

Weldability

55 / 100
60 / 100

Formability (cold)

5 / 100
20 / 100

Castability

72 / 100
70 / 100

Brazeability / Solderability

35 / 100
50 / 100

Polishability

45 / 100
55 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

80 MJ/kg34,394 BTU/lb
85 MJ/kg36,543 BTU/lb

Embodied Carbon (primary production)

6.2 kg CO₂/kg
6 kg CO₂/kg

Embodied Water

120 L/kg14.4 gal/lb
160 L/kg19.2 gal/lb

Typical Recycled Content

70%
60%

Common Calculations

Ratios derived from the values above.

Specific Stiffness (E / density)

21.5 MN·m/kg
24.4 MN·m/kg

Modulus of Resilience

184 kJ/m³
149 kJ/m³

Thermal Shock Resistance Index

3
2

Same in both: Specific Strength (UTS / density) 62 kN·m/kg · Thermal Diffusivity 3.4 mm²/s

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.

3005007001,0001,5002,0007.27.47.67.888.2Density (g/cm³)Yield strength (MPa) — log scale1.4849CT15C

Manufacturing and finishing

Capability1.4849CT15C
Default condition——
Relative cost$$$$ High$$$$ 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.

1.4849 vs CT15C — frequently asked

What is the difference between 1.4849 and CT15C?

Stainless Steel 1.4849 and CT15C are both stainless steel grades. Both yield at about 250 MPa — strength does not separate them. CT15C is the more ductile: elongation 30% versus 10% for 1.4849, and 1.4849 is harder (180 HB vs 170 HB).

Which is cheaper, 1.4849 or CT15C?

Both sit in the same relative cost tier ($$$$, high); the part price will be decided by machining time, tolerance and quantity rather than by the material.

Which is easier to machine, 1.4849 or CT15C?

CT15C, by a small margin. Both rate poor for machinability — 30/100 against 20/100 for 1.4849; for welding the order is CT15C first (good, 60/100) then 1.4849 (good, 55/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in 1.4849 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.