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Stainless Steel 1.4470 vs CE8MN

Stainless Steel · grade comparison

Stainless Steel 1.4470 and CE8MN are both stainless steel grades. Both yield at about 500 MPa — strength does not separate them. 1.4470 is harder — 230 HB against 210 HB for CE8MN — which matters for wear surfaces and threads. CE8MN runs hotter in service (315°C vs 260°C continuous). On the shop floor, CE8MN forms better (30 vs 20 out of 100).

1.4470Choose it when surface hardness matters.

CE8MNChoose it when the part sees heat.

1.4470 vs CE8MN: properties

1.4470CE8MN

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Bulk Modulus

160 GPa23.2 Msi
162 GPa23.5 Msi

Tensile Strength (Ultimate)

700 MPa102 ksi
720 MPa104 ksi

Reduction in Area

45%
40%

Compressive Strength

510 MPa74 ksi
500 MPa72.5 ksi

Fracture Toughness (K_IC)

120 MPa·√m109 ksi·√in
100 MPa·√m91 ksi·√in

Charpy V-Notch Impact (RT)

100 J73.8 ft·lbf
80 J59 ft·lbf

Hardness, Brinell

230 HB
210 HB

Hardness, Rockwell B

98 HRB
—

Hardness, Rockwell C

21 HRC
20 HRC

Hardness, Vickers

245 HV
—

Same in both: Elastic (Young's) Modulus 195 GPa28.3 Msi · Shear Modulus 76 GPa11 Msi · Poisson's Ratio 0.3 · Yield Strength (0.2% offset) 500 MPa72.5 ksi · Elongation at Break 30% · Shear Strength 430 MPa62.4 ksi · Fatigue Strength (Endurance Limit) 300 MPa43.5 ksi

Physical

Density and transition temperatures.

Density

7.8 g/cm³0.28 lb/in³
7.75 g/cm³0.28 lb/in³

Liquidus Temperature

1,460°C2,660 °F
1,450°C2,642 °F

Same in both: Melting Point (Solidus) 1,400°C2,552 °F

Thermal

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

Thermal Conductivity

15.5 W/m·K9 BTU/hr·ft·°F
15 W/m·K8.7 BTU/hr·ft·°F

Specific Heat Capacity

480 J/kg·K0.11 BTU/lb·°F
490 J/kg·K0.12 BTU/lb·°F

Max Service Temperature (continuous)

260°C500 °F
315°C599 °F

Same in both: Thermal Expansion (CTE, 20–100 °C) 13 µm/m·K7.2 µin/in·°F · Latent Heat of Fusion 270 J/g116 BTU/lb · Min Service Temperature -50°C-58 °F

Electrical

Conductivity and insulation.

Same in both: Electrical Conductivity 2.2 % IACS · Electrical Resistivity 8×10⁻⁷ Ω·m31.5 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.15 V
-0.2 V

Corrosion Resistance

78 / 100
72 / 100

Manufacturability

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

Machinability Rating (AISI 1212 = 100 %)

25%
30%

Weldability

70 / 100
65 / 100

Formability (cold)

20 / 100
30 / 100

Castability

68 / 100
65 / 100

Brazeability / Solderability

40 / 100
35 / 100

Same in both: Machinability 32 / 100 · Polishability 65 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

55 MJ/kg23,646 BTU/lb
60 MJ/kg25,795 BTU/lb

Embodied Water

190 L/kg22.8 gal/lb
250 L/kg30 gal/lb

Same in both: Embodied Carbon (primary production) 5 kg CO₂/kg · Typical Recycled Content 80%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

90 kN·m/kg
93 kN·m/kg

Specific Stiffness (E / density)

25 MN·m/kg
25.2 MN·m/kg

Thermal Diffusivity

4.1 mm²/s
3.9 mm²/s

Same in both: Modulus of Resilience 641 kJ/m³ · Thermal Shock Resistance Index 4

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 scaleCE8MN1.4470

Manufacturing and finishing

Capability1.4470CE8MN
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.

1.4470 vs CE8MN — frequently asked

What is the difference between 1.4470 and CE8MN?

Stainless Steel 1.4470 and CE8MN are both stainless steel grades. Both yield at about 500 MPa — strength does not separate them. 1.4470 is harder — 230 HB against 210 HB for CE8MN — which matters for wear surfaces and threads.

Which is cheaper, 1.4470 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 welds better, 1.4470 or CE8MN?

1.4470. Its weldability rates very good (70/100) against good (65/100) for CE8MN.

Ready to make it?

Upload a CAD file and FabDigit prices the part in 1.4470 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.