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Stainless Steel 1.4848 vs CG6MMN

Stainless Steel · grade comparison

Stainless Steel 1.4848 and CG6MMN are both stainless steel grades. CG6MMN is the stronger of the two: yield strength 350 MPa (50.8 ksi) against 280 MPa (40.6 ksi) for 1.4848, about 25% more; tensile strength follows at 655 MPa (95 ksi) vs 530 MPa (76.9 ksi). CG6MMN is the more ductile: elongation 40% versus 14% for 1.4848. 1.4848 runs hotter in service (1,100°C vs 650°C continuous) and CG6MMN conducts electricity better (2.3 % IACS vs 1.9 % IACS). On the shop floor, CG6MMN welds better (very good vs fair) and 1.4848 sits in a lower cost tier (premium, $$$) than CG6MMN (high, $$$$).

1.4848Choose it when the part sees heat, or when cost is the deciding factor.

CG6MMNChoose it when strength drives the design, or when the part is bent, formed or impact-loaded.

1.4848 vs CG6MMN: properties

1.4848CG6MMN

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

185 GPa26.8 Msi
193 GPa28 Msi

Shear Modulus

72 GPa10.4 Msi
75 GPa10.9 Msi

Bulk Modulus

147 GPa21.3 Msi
160 GPa23.2 Msi

Tensile Strength (Ultimate)

530 MPa76.9 ksi
655 MPa95 ksi

Yield Strength (0.2% offset)

280 MPa40.6 ksi
350 MPa50.8 ksi

Elongation at Break

14%
40%

Reduction in Area

15%
45%

Shear Strength

345 MPa50 ksi
430 MPa62.4 ksi

Fatigue Strength (Endurance Limit)

200 MPa29 ksi
270 MPa39.2 ksi

Charpy V-Notch Impact (RT)

12 J8.9 ft·lbf
90 J66.4 ft·lbf

Hardness, Rockwell B

90 HRB
91 HRB

Hardness, Vickers

200 HV
—

Compressive Strength

—
350 MPa50.8 ksi

Fracture Toughness (K_IC)

—
130 MPa·√m118 ksi·√in

Same in both: Poisson's Ratio 0.29 · Hardness, Brinell 190 HB

Physical

Density and transition temperatures.

Density

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

Melting Point (Solidus)

1,370°C2,498 °F
1,385°C2,525 °F

Same in both: Liquidus Temperature 1,425°C2,597 °F

Thermal

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

Thermal Conductivity

14 W/m·K8.1 BTU/hr·ft·°F
13 W/m·K7.5 BTU/hr·ft·°F

Thermal Expansion (CTE, 20–100 °C)

15 µm/m·K8.3 µin/in·°F
15.5 µm/m·K8.6 µin/in·°F

Latent Heat of Fusion

270 J/g116 BTU/lb
275 J/g118 BTU/lb

Max Service Temperature (continuous)

1,100°C2,012 °F
650°C1,202 °F

Min Service Temperature

-50°C-58 °F
-196°C-321 °F

Same in both: Specific Heat Capacity 500 J/kg·K0.12 BTU/lb·°F

Electrical

Conductivity and insulation.

Electrical Conductivity

1.9 % IACS
2.3 % IACS

Electrical Resistivity

9×10⁻⁷ Ω·m35.4 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)

-0.1 V
-0.08 V

Corrosion Resistance

58 / 100
75 / 100

Manufacturability

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

Machinability

25 / 100
30 / 100

Weldability

45 / 100
70 / 100

Formability (cold)

8 / 100
45 / 100

Castability

75 / 100
55 / 100

Brazeability / Solderability

30 / 100
45 / 100

Polishability

45 / 100
65 / 100

Same in both: Machinability Rating (AISI 1212 = 100 %) 25%

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

62 MJ/kg26,655 BTU/lb
55 MJ/kg23,646 BTU/lb

Embodied Carbon (primary production)

4.6 kg CO₂/kg
4.3 kg CO₂/kg

Embodied Water

200 L/kg24 gal/lb
130 L/kg15.6 gal/lb

Typical Recycled Content

75%
70%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

68 kN·m/kg
83 kN·m/kg

Specific Stiffness (E / density)

23.9 MN·m/kg
24.6 MN·m/kg

Modulus of Resilience

212 kJ/m³
317 kJ/m³

Thermal Diffusivity

3.6 mm²/s
3.3 mm²/s

Same in both: Thermal Shock Resistance Index 3

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 scale1.4848CG6MMN

Manufacturing and finishing

Capability1.4848CG6MMN
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 CG6MMN — frequently asked

Is CG6MMN stronger than 1.4848?

Yes. CG6MMN has a typical yield strength of 350 MPa (50.8 ksi) against 280 MPa (40.6 ksi) for 1.4848 — about 25% more. Tensile strength is 655 MPa (95 ksi) vs 530 MPa (76.9 ksi).

Which is cheaper, 1.4848 or CG6MMN?

1.4848 is the lower-cost material: it sits in the premium tier ($$$) while CG6MMN is high ($$$$). 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 CG6MMN?

CG6MMN, by a small margin. Both rate poor for machinability — 30/100 against 25/100 for 1.4848; for welding the order is CG6MMN first (very good, 70/100) then 1.4848 (fair, 45/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in 1.4848 and CG6MMN 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.