Stainless Steel 1.4849 vs HK
Stainless Steel · grade comparison
Stainless Steel 1.4849 and HK are both stainless steel grades. HK is the stronger of the two: yield strength 345 MPa (50 ksi) against 250 MPa (36.3 ksi) for 1.4849, about 38% more; tensile strength follows at 520 MPa (75.4 ksi) vs 490 MPa (71.1 ksi). HK is the more ductile: elongation 12% versus 10% for 1.4849, and HK is harder (190 HB vs 180 HB). HK is stiffer (185 GPa vs 170 GPa) and HK runs hotter in service (1,150°C vs 1,050°C continuous). On the shop floor, HK machines more easily (30 vs 20 out of 100) and HK sits in a lower cost tier (premium, $$$) than 1.4849 (high, $$$$).
HKChoose it when strength drives the design, or when the part is bent, formed or impact-loaded.
1.4849 vs HK: 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
Shear Strength
Fatigue Strength (Endurance Limit)
Hardness, Brinell
Compressive Strength
Hardness, Rockwell B
Hardness, Vickers
Same in both: Poisson's Ratio 0.29 · Charpy V-Notch Impact (RT) 20 J14.8 ft·lbf
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
Max Service Temperature (continuous)
Min Service Temperature
Same in both: Specific Heat Capacity 500 J/kg·K0.12 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 15 µm/m·K8.3 µin/in·°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
Same in both: 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 Shock Resistance Index
Same in both: Thermal Diffusivity 3.4 mm²/s
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 | HK |
|---|---|---|
| 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 HK — frequently asked
Is HK stronger than 1.4849?
Yes. HK has a typical yield strength of 345 MPa (50 ksi) against 250 MPa (36.3 ksi) for 1.4849 — about 38% more. Tensile strength is 520 MPa (75.4 ksi) vs 490 MPa (71.1 ksi).
Which is cheaper, 1.4849 or HK?
HK 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 HK?
HK, by a small margin. Both rate poor for machinability — 30/100 against 20/100 for 1.4849; for welding the order is 1.4849 first (good, 55/100) then HK (fair, 50/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in 1.4849 and HK 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.