Stainless Steel 1.4849 vs 1.4857
Stainless Steel · grade comparison
Stainless Steel 1.4849 and 1.4857 are both stainless steel grades. 1.4849 is the stronger of the two: tensile strength 490 MPa (71.1 ksi) against 450 MPa (65.3 ksi) for 1.4857, about 9% more. 1.4857 is harder — 190 HB against 180 HB for 1.4849 — which matters for wear surfaces and threads. On the shop floor, 1.4849 welds better (good vs fair).
1.4849Choose it when strength drives the design, or when it will be welded.
1.4857Choose it when surface hardness matters.
1.4849 vs 1.4857: 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
Tensile Strength (Ultimate)
Fatigue Strength (Endurance Limit)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Rockwell B
Same in both: Bulk Modulus 140 GPa20.3 Msi · Poisson's Ratio 0.29 · Yield Strength (0.2% offset) 250 MPa36.3 ksi · Elongation at Break 10% · Reduction in Area 10% · Shear Strength 300 MPa43.5 ksi
Physical
Density and transition temperatures.
Melting Point (Solidus)
Liquidus Temperature
Same in both: Density 7.9 g/cm³0.29 lb/in³
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Thermal Expansion (CTE, 20–100 °C)
Max Service Temperature (continuous)
Same in both: Specific Heat Capacity 500 J/kg·K0.12 BTU/lb·°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 1.7 % IACS · Electrical Resistivity 1×10⁻⁶ Ω·m39.4 µΩ·in
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
Weldability
Castability
Brazeability / Solderability
Same in both: Machinability Rating (AISI 1212 = 100 %) 15% · Formability (cold) 5 / 100 · Polishability 45 / 100
Sustainability
Primary-production footprint per kilogram.
Embodied Energy (primary production)
Embodied Carbon (primary production)
Embodied Water
Typical Recycled Content
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 | 1.4857 |
|---|---|---|
| Default condition | — | — |
| Relative cost | $$$$ High | $$$$ High |
| Min. machined wall | — | — |
| Best machined surface | — | — |
Both take the same 7 finishes: Electroless Nickel (EN), Epoxy Coating, Gold Plating, Hard Chrome Plating, Pickling, Plasma Spray, Silver Plating.
1.4849 vs 1.4857 — frequently asked
Is 1.4849 stronger than 1.4857?
Yes. 1.4849 has a typical tensile strength of 490 MPa (71.1 ksi) against 450 MPa (65.3 ksi) for 1.4857 — about 9% more.
Which is cheaper, 1.4849 or 1.4857?
Both sit in the same relative cost tier ($$$$, 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 1.4857?
1.4857, by a small margin. Both rate poor for machinability — 25/100 against 20/100 for 1.4849; for welding the order is 1.4849 first (good, 55/100) then 1.4857 (fair, 45/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in 1.4849 and 1.4857 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.