Stainless Steel 1.4849 vs CG8M
Stainless Steel · grade comparison
Stainless Steel 1.4849 and CG8M are both stainless steel grades. CG8M is the stronger of the two: yield strength 290 MPa (42.1 ksi) against 250 MPa (36.3 ksi) for 1.4849, about 16% more; tensile strength follows at 550 MPa (79.8 ksi) vs 490 MPa (71.1 ksi). CG8M is the more ductile: elongation 40% versus 10% for 1.4849, and 1.4849 is harder (180 HB vs 170 HB). CG8M 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, CG8M machines more easily (32 vs 20 out of 100), CG8M welds better (65 vs 55 out of 100), and CG8M sits in a lower cost tier (premium, $$$) than 1.4849 (high, $$$$).
1.4849Choose it when the part sees heat.
CG8MChoose it when strength drives the design, or when the part is bent, formed or impact-loaded.
1.4849 vs CG8M: propertiesHow to read these bars
- One bar per material. A full bar is the highest value among all stainless steel grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
How to read these bars
- One bar per material. A full bar is the highest value among all stainless steel grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
Mechanical
Strength, stiffness, ductility and hardness at room temperature.
Elastic (Young's) Modulus
Shear Modulus
Bulk Modulus
Poisson's Ratio
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Reduction in Area
Shear Strength
Fatigue Strength (Endurance Limit)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Compressive Strength
Fracture Toughness (K_IC)
Hardness, Rockwell B
Hardness, Vickers
Physical
Density and transition temperatures.
Density
Melting Point (Solidus)
Liquidus Temperature
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Thermal Expansion (CTE, 20–100 °C)
Max Service Temperature (continuous)
Min Service Temperature
Same in both: Specific Heat Capacity 500 J/kg·K0.12 BTU/lb·°F · Latent Heat of Fusion 270 J/g116 BTU/lb
Electrical
Conductivity and insulation.
Electrical Conductivity
Electrical Resistivity
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Corrosion Resistance
Same in both: Galvanic Potential (seawater, vs SCE) -0.1 V
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Weldability
Formability (cold)
Castability
Brazeability / Solderability
Polishability
Sustainability
Primary-production footprint per kilogram.
Embodied Energy (primary production)
Embodied Carbon (primary production)
Same in both: Embodied Water 120 L/kg14.4 gal/lb · Typical Recycled Content 70%
Common Calculations
Ratios derived from the values above.
Specific Strength (UTS / density)
Specific Stiffness (E / density)
Modulus of Resilience
Thermal Diffusivity
Thermal Shock Resistance Index
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.
Manufacturing and finishing
| Capability | 1.4849 | CG8M |
|---|---|---|
| Default condition | — | — |
| Relative cost | $$$$ High | $$$ 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.
1.4849 vs CG8M — frequently asked
Is CG8M stronger than 1.4849?
Yes. CG8M has a typical yield strength of 290 MPa (42.1 ksi) against 250 MPa (36.3 ksi) for 1.4849 — about 16% more. Tensile strength is 550 MPa (79.8 ksi) vs 490 MPa (71.1 ksi).
Which is cheaper, 1.4849 or CG8M?
CG8M is the lower-cost material: it sits in the premium tier ($$$) while 1.4849 is high ($$$$). 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, 1.4849 or CG8M?
CG8M, by a small margin. Both rate poor for machinability — 32/100 against 20/100 for 1.4849; for welding the order is CG8M first (good, 65/100) then 1.4849 (good, 55/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in 1.4849 and CG8M 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.