Stainless Steel 1.4557 vs 1.4837
Stainless Steel · grade comparison
Stainless Steel 1.4557 and 1.4837 are both stainless steel grades. 1.4557 is the stronger of the two: yield strength 295 MPa (42.8 ksi) against 265 MPa (38.4 ksi) for 1.4837, about 11% more; tensile strength follows at 600 MPa (87 ksi) vs 520 MPa (75.4 ksi). 1.4557 is the more ductile: elongation 45% versus 12% for 1.4837, and 1.4837 is harder (190 HB vs 175 HB). 1.4837 is lighter (7.7 g/cm³ vs 8 g/cm³ for 1.4557) and 1.4557 is stiffer (195 GPa vs 185 GPa). On the shop floor, 1.4557 welds better (good vs fair) and 1.4837 sits in a lower cost tier (premium, $$$) than 1.4557 (high, $$$$).
1.4557Choose it when strength drives the design, or when the part is bent, formed or impact-loaded.
1.4837Choose it when weight is the constraint, or when the part sees heat.
1.4557 vs 1.4837: 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
Compressive Strength
Shear Strength
Fatigue Strength (Endurance Limit)
Fracture Toughness (K_IC)
Charpy V-Notch Impact (RT)
Hardness, Brinell
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).
Galvanic Potential (seawater, vs SCE)
Corrosion Resistance
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Weldability
Formability (cold)
Castability
Brazeability / Solderability
Polishability
Same in both: Machinability 22 / 100 · Machinability Rating (AISI 1212 = 100 %) 25%
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
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.
Manufacturing and finishing
| Capability | 1.4557 | 1.4837 |
|---|---|---|
| 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.
1.4557 vs 1.4837 — frequently asked
Is 1.4557 stronger than 1.4837?
Yes. 1.4557 has a typical yield strength of 295 MPa (42.8 ksi) against 265 MPa (38.4 ksi) for 1.4837 — about 11% more. Tensile strength is 600 MPa (87 ksi) vs 520 MPa (75.4 ksi).
Which is cheaper, 1.4557 or 1.4837?
1.4837 is the lower-cost material: it sits in the premium tier ($$$) while 1.4557 is high ($$$$). Part price depends far more on geometry, tolerance and quantity than on raw stock — upload a CAD file for a live quote.
Which welds better, 1.4557 or 1.4837?
1.4557. Its weldability rates good (65/100) against fair (40/100) for 1.4837.
Ready to make it?
Upload a CAD file and FabDigit prices the part in 1.4557 and 1.4837 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.