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Stainless Steel 1.4740 vs CC50

Stainless Steel · grade comparison

Stainless Steel 1.4740 and CC50 are both stainless steel grades. Both yield at about 280 MPa — strength does not separate them. CC50 is the more ductile: elongation 10% versus 8% for 1.4740, and 1.4740 is harder (240 HB vs 210 HB). CC50 runs hotter in service (1,090°C vs 950°C continuous).

CC50Choose it when the part is bent, formed or impact-loaded, or when the part sees heat.

1.4740 vs CC50: properties

1.4740CC50

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Poisson's Ratio

0.3
0.28

Tensile Strength (Ultimate)

500 MPa72.5 ksi
480 MPa69.6 ksi

Yield Strength (0.2% offset)

280 MPa40.6 ksi
275 MPa39.9 ksi

Elongation at Break

8%
10%

Reduction in Area

10%
12%

Compressive Strength

300 MPa43.5 ksi
290 MPa42.1 ksi

Shear Strength

320 MPa46.4 ksi
300 MPa43.5 ksi

Fatigue Strength (Endurance Limit)

200 MPa29 ksi
175 MPa25.4 ksi

Fracture Toughness (K_IC)

30 MPa·√m27.3 ksi·√in
40 MPa·√m36.4 ksi·√in

Charpy V-Notch Impact (RT)

5 J3.7 ft·lbf
8 J5.9 ft·lbf

Hardness, Brinell

240 HB
210 HB

Hardness, Rockwell B

100 HRB
95 HRB

Hardness, Rockwell C

22 HRC
—

Hardness, Vickers

250 HV
220 HV

Same in both: Elastic (Young's) Modulus 200 GPa29 Msi · Shear Modulus 77 GPa11.2 Msi · Bulk Modulus 160 GPa23.2 Msi

Physical

Density and transition temperatures.

Melting Point (Solidus)

1,400°C2,552 °F
1,370°C2,498 °F

Liquidus Temperature

1,480°C2,696 °F
1,450°C2,642 °F

Same in both: Density 7.6 g/cm³0.27 lb/in³

Thermal

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

Thermal Conductivity

22 W/m·K12.7 BTU/hr·ft·°F
20.5 W/m·K11.8 BTU/hr·ft·°F

Specific Heat Capacity

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

Max Service Temperature (continuous)

950°C1,742 °F
1,090°C1,994 °F

Min Service Temperature

0°C32 °F
-20°C-4 °F

Same in both: Thermal Expansion (CTE, 20–100 °C) 10.5 µm/m·K5.8 µin/in·°F · Latent Heat of Fusion 270 J/g116 BTU/lb

Electrical

Conductivity and insulation.

Electrical Conductivity

2.2 % IACS
2.3 % IACS

Electrical Resistivity

8×10⁻⁷ Ω·m31.5 µΩ·in
7.5×10⁻⁷ Ω·m29.5 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.28 V
-0.25 V

Corrosion Resistance

52 / 100
72 / 100

Manufacturability

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

Machinability

32 / 100
35 / 100

Weldability

25 / 100
30 / 100

Formability (cold)

5 / 100
10 / 100

Castability

72 / 100
65 / 100

Brazeability / Solderability

35 / 100
45 / 100

Polishability

50 / 100
55 / 100

Same in both: Machinability Rating (AISI 1212 = 100 %) 40%

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

50 MJ/kg21,496 BTU/lb
55 MJ/kg23,646 BTU/lb

Embodied Carbon (primary production)

3.6 kg CO₂/kg
4.2 kg CO₂/kg

Embodied Water

120 L/kg14.4 gal/lb
110 L/kg13.2 gal/lb

Typical Recycled Content

80%
65%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

66 kN·m/kg
63 kN·m/kg

Modulus of Resilience

196 kJ/m³
189 kJ/m³

Thermal Diffusivity

6.2 mm²/s
5.4 mm²/s

Same in both: Specific Stiffness (E / density) 26.3 MN·m/kg · Thermal Shock Resistance Index 5

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 scaleCC501.4740

Manufacturing and finishing

Capability1.4740CC50
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.

1.4740 vs CC50 — frequently asked

What is the difference between 1.4740 and CC50?

Stainless Steel 1.4740 and CC50 are both stainless steel grades. Both yield at about 280 MPa — strength does not separate them. CC50 is the more ductile: elongation 10% versus 8% for 1.4740, and 1.4740 is harder (240 HB vs 210 HB).

Which is cheaper, 1.4740 or CC50?

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 welds better, 1.4740 or CC50?

CC50. Its weldability rates poor (30/100) against poor (25/100) for 1.4740.

Ready to make it?

Upload a CAD file and FabDigit prices the part in 1.4740 and CC50 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.