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Stainless Steel 1.4729 vs CC50

Stainless Steel · grade comparison

Stainless Steel 1.4729 and CC50 are both stainless steel grades. 1.4729 is the stronger of the two: yield strength 420 MPa (60.9 ksi) against 275 MPa (39.9 ksi) for CC50, about 53% more; tensile strength follows at 680 MPa (98.6 ksi) vs 480 MPa (69.6 ksi). 1.4729 is harder — 230 HB against 210 HB for CC50 — which matters for wear surfaces and threads. 1.4729 is stiffer (215 GPa vs 200 GPa) and CC50 runs hotter in service (1,090°C vs 850°C continuous).

1.4729Choose it when strength drives the design, or when surface hardness matters.

CC50Choose it when the part sees heat.

1.4729 vs CC50: properties

1.4729CC50

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

215 GPa31.2 Msi
200 GPa29 Msi

Shear Modulus

83 GPa12 Msi
77 GPa11.2 Msi

Bulk Modulus

165 GPa23.9 Msi
160 GPa23.2 Msi

Poisson's Ratio

0.29
0.28

Tensile Strength (Ultimate)

680 MPa98.6 ksi
480 MPa69.6 ksi

Yield Strength (0.2% offset)

420 MPa60.9 ksi
275 MPa39.9 ksi

Reduction in Area

18%
12%

Compressive Strength

700 MPa102 ksi
290 MPa42.1 ksi

Shear Strength

440 MPa63.8 ksi
300 MPa43.5 ksi

Fatigue Strength (Endurance Limit)

280 MPa40.6 ksi
175 MPa25.4 ksi

Fracture Toughness (K_IC)

35 MPa·√m31.9 ksi·√in
40 MPa·√m36.4 ksi·√in

Charpy V-Notch Impact (RT)

10 J7.4 ft·lbf
8 J5.9 ft·lbf

Hardness, Brinell

230 HB
210 HB

Hardness, Rockwell C

21 HRC
—

Hardness, Vickers

240 HV
220 HV

Hardness, Rockwell B

—
95 HRB

Same in both: Elongation at Break 10%

Physical

Density and transition temperatures.

Density

7.7 g/cm³0.28 lb/in³
7.6 g/cm³0.27 lb/in³

Melting Point (Solidus)

1,400°C2,552 °F
1,370°C2,498 °F

Liquidus Temperature

1,470°C2,678 °F
1,450°C2,642 °F

Thermal

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

Thermal Conductivity

24 W/m·K13.9 BTU/hr·ft·°F
20.5 W/m·K11.8 BTU/hr·ft·°F

Specific Heat Capacity

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

Latent Heat of Fusion

260 J/g112 BTU/lb
270 J/g116 BTU/lb

Max Service Temperature (continuous)

850°C1,562 °F
1,090°C1,994 °F

Same in both: Thermal Expansion (CTE, 20–100 °C) 10.5 µm/m·K5.8 µin/in·°F · Min Service Temperature -20°C-4 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

2.5 % IACS
2.3 % IACS

Electrical Resistivity

7×10⁻⁷ Ω·m27.6 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)

-0.3 V
-0.25 V

Corrosion Resistance

45 / 100
72 / 100

Manufacturability

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

Weldability

25 / 100
30 / 100

Formability (cold)

8 / 100
10 / 100

Brazeability / Solderability

40 / 100
45 / 100

Same in both: Machinability 35 / 100 · Machinability Rating (AISI 1212 = 100 %) 40% · Castability 65 / 100 · Polishability 55 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

45 MJ/kg19,347 BTU/lb
55 MJ/kg23,646 BTU/lb

Embodied Carbon (primary production)

3.4 kg CO₂/kg
4.2 kg CO₂/kg

Embodied Water

130 L/kg15.6 gal/lb
110 L/kg13.2 gal/lb

Typical Recycled Content

70%
65%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

88 kN·m/kg
63 kN·m/kg

Specific Stiffness (E / density)

27.9 MN·m/kg
26.3 MN·m/kg

Modulus of Resilience

410 kJ/m³
189 kJ/m³

Thermal Diffusivity

6.8 mm²/s
5.4 mm²/s

Thermal Shock Resistance Index

7
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 scaleCC501.4729

Manufacturing and finishing

Capability1.4729CC50
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.

1.4729 vs CC50 — frequently asked

Is 1.4729 stronger than CC50?

Yes. 1.4729 has a typical yield strength of 420 MPa (60.9 ksi) against 275 MPa (39.9 ksi) for CC50 — about 53% more. Tensile strength is 680 MPa (98.6 ksi) vs 480 MPa (69.6 ksi).

Which is cheaper, 1.4729 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, 1.4729 or CC50?

CC50. Its weldability rates poor (30/100) against poor (25/100) for 1.4729.

Ready to make it?

Upload a CAD file and FabDigit prices the part in 1.4729 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.