Stainless Steel 1.4837 vs 1.4859
Stainless Steel · grade comparison
Stainless Steel 1.4837 and 1.4859 are both stainless steel grades. 1.4837 is the stronger of the two: yield strength 265 MPa (38.4 ksi) against 235 MPa (34.1 ksi) for 1.4859, about 13% more; tensile strength follows at 520 MPa (75.4 ksi) vs 480 MPa (69.6 ksi). In exchange, 1.4859 is the more ductile: elongation 28% versus 12% for 1.4837, and 1.4837 is harder (190 HB vs 150 HB). 1.4837 is stiffer (185 GPa vs 172 GPa) and 1.4837 conducts heat better (14.5 W/m·K vs 13 W/m·K). On the shop floor, 1.4859 welds better (very good vs fair) and 1.4837 sits in a lower cost tier (premium, $$$) than 1.4859 (high, $$$$).
1.4837Choose it when strength drives the design, or when cost is the deciding factor.
1.4859Choose it when the part is bent, formed or impact-loaded, or when it will be welded.
1.4837 vs 1.4859: 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
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Reduction in Area
Compressive Strength
Shear Strength
Fatigue Strength (Endurance Limit)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Rockwell B
Hardness, Vickers
Same in both: Poisson's Ratio 0.29
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)
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 · Max Service Temperature (continuous) 1,050°C1,922 °F
Electrical
Conductivity and insulation.
Electrical Conductivity
Electrical Resistivity
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Galvanic Potential (seawater, vs SCE)
Corrosion Resistance
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Weldability
Formability (cold)
Castability
Polishability
Brazeability / Solderability
Sustainability
Primary-production footprint per kilogram.
Embodied Energy (primary production)
Embodied Carbon (primary production)
Typical Recycled Content
Same in both: Embodied Water 200 L/kg24 gal/lb
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 | 1.4837 | 1.4859 |
|---|---|---|
| Default condition | — | — |
| Relative cost | $$$ Premium | $$$$ High |
| Min. machined wall | — | — |
| Best machined surface | — | — |
Both take the same 7 finishes: Electroless Nickel (EN), Epoxy Coating, Gold Plating, Hard Chrome Plating, Pickling, Plasma Spray, Silver Plating.
1.4837 vs 1.4859 — frequently asked
Is 1.4837 stronger than 1.4859?
Yes. 1.4837 has a typical yield strength of 265 MPa (38.4 ksi) against 235 MPa (34.1 ksi) for 1.4859 — about 13% more. Tensile strength is 520 MPa (75.4 ksi) vs 480 MPa (69.6 ksi).
Which is cheaper, 1.4837 or 1.4859?
1.4837 is the lower-cost material: it sits in the premium tier ($$$) while 1.4859 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, 1.4837 or 1.4859?
1.4859, by a small margin. Both rate poor for machinability — 28/100 against 22/100 for 1.4837; for welding the order is 1.4859 first (very good, 72/100) then 1.4837 (fair, 40/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in 1.4837 and 1.4859 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.