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Stainless Steel 1.4849 vs CG6MMN

Stainless Steel · grade comparison

Stainless Steel 1.4849 and CG6MMN are both stainless steel grades. CG6MMN is the stronger of the two: yield strength 350 MPa (50.8 ksi) against 250 MPa (36.3 ksi) for 1.4849, about 40% more; tensile strength follows at 655 MPa (95 ksi) vs 490 MPa (71.1 ksi). CG6MMN is the more ductile: elongation 40% versus 10% for 1.4849, and CG6MMN is harder (190 HB vs 180 HB). CG6MMN is stiffer (193 GPa vs 170 GPa) and 1.4849 runs hotter in service (1,050°C vs 650°C continuous). On the shop floor, CG6MMN machines more easily (30 vs 20 out of 100) and CG6MMN welds better (very good vs good).

1.4849Choose it when the part sees heat.

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

1.4849 vs CG6MMN: properties

1.4849CG6MMN

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
160 GPa23.2 Msi

Tensile Strength (Ultimate)

490 MPa71.1 ksi
655 MPa95 ksi

Yield Strength (0.2% offset)

250 MPa36.3 ksi
350 MPa50.8 ksi

Elongation at Break

10%
40%

Reduction in Area

10%
45%

Shear Strength

300 MPa43.5 ksi
430 MPa62.4 ksi

Fatigue Strength (Endurance Limit)

190 MPa27.6 ksi
270 MPa39.2 ksi

Charpy V-Notch Impact (RT)

20 J14.8 ft·lbf
90 J66.4 ft·lbf

Hardness, Brinell

180 HB
190 HB

Compressive Strength

—
350 MPa50.8 ksi

Fracture Toughness (K_IC)

—
130 MPa·√m118 ksi·√in

Hardness, Rockwell B

—
91 HRB

Same in both: Poisson's Ratio 0.29

Physical

Density and transition temperatures.

Density

7.9 g/cm³0.29 lb/in³
7.85 g/cm³0.28 lb/in³

Melting Point (Solidus)

1,320°C2,408 °F
1,385°C2,525 °F

Liquidus Temperature

1,385°C2,525 °F
1,425°C2,597 °F

Thermal

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

Thermal Conductivity

13.5 W/m·K7.8 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)

1,050°C1,922 °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

1.7 % IACS
2.3 % IACS

Electrical Resistivity

1×10⁻⁶ Ω·m39.4 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

68 / 100
75 / 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%
25%

Weldability

55 / 100
70 / 100

Formability (cold)

5 / 100
45 / 100

Castability

72 / 100
55 / 100

Brazeability / Solderability

35 / 100
45 / 100

Polishability

45 / 100
65 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

80 MJ/kg34,394 BTU/lb
55 MJ/kg23,646 BTU/lb

Embodied Carbon (primary production)

6.2 kg CO₂/kg
4.3 kg CO₂/kg

Embodied Water

120 L/kg14.4 gal/lb
130 L/kg15.6 gal/lb

Same in both: Typical Recycled Content 70%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

62 kN·m/kg
83 kN·m/kg

Specific Stiffness (E / density)

21.5 MN·m/kg
24.6 MN·m/kg

Modulus of Resilience

184 kJ/m³
317 kJ/m³

Thermal Diffusivity

3.4 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 scale1.4849CG6MMN

Manufacturing and finishing

Capability1.4849CG6MMN
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 CG6MMN — frequently asked

Is CG6MMN stronger than 1.4849?

Yes. CG6MMN has a typical yield strength of 350 MPa (50.8 ksi) against 250 MPa (36.3 ksi) for 1.4849 — about 40% more. Tensile strength is 655 MPa (95 ksi) vs 490 MPa (71.1 ksi).

Which is cheaper, 1.4849 or CG6MMN?

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 CG6MMN?

CG6MMN, by a small margin. Both rate poor for machinability — 30/100 against 20/100 for 1.4849; for welding the order is CG6MMN first (very good, 70/100) then 1.4849 (good, 55/100).

Ready to make it?

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