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Stainless Steel 1.4584 vs 1.4849

Stainless Steel · grade comparison

Stainless Steel 1.4584 and 1.4849 are both stainless steel grades. 1.4849 is the stronger of the two: yield strength 250 MPa (36.3 ksi) against 230 MPa (33.4 ksi) for 1.4584, about 9% more. In exchange, 1.4584 is the more ductile: elongation 40% versus 10% for 1.4849, and 1.4849 is harder (180 HB vs 160 HB). 1.4584 is stiffer (190 GPa vs 170 GPa) and 1.4849 runs hotter in service (1,050°C vs 400°C continuous). On the shop floor, 1.4584 machines more easily (30 vs 20 out of 100) and 1.4584 welds better (very good vs good).

1.4584Choose it when the part is bent, formed or impact-loaded, or when the part is machined in volume.

1.4849Choose it when strength drives the design, or when the part sees heat.

1.4584 vs 1.4849: properties

1.45841.4849

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

190 GPa27.6 Msi
170 GPa24.7 Msi

Shear Modulus

73 GPa10.6 Msi
66 GPa9.6 Msi

Bulk Modulus

158 GPa22.9 Msi
140 GPa20.3 Msi

Poisson's Ratio

0.3
0.29

Yield Strength (0.2% offset)

230 MPa33.4 ksi
250 MPa36.3 ksi

Elongation at Break

40%
10%

Reduction in Area

45%
10%

Compressive Strength

235 MPa34.1 ksi
—

Shear Strength

310 MPa45 ksi
300 MPa43.5 ksi

Fracture Toughness (K_IC)

150 MPa·√m137 ksi·√in
—

Charpy V-Notch Impact (RT)

110 J81.1 ft·lbf
20 J14.8 ft·lbf

Hardness, Brinell

160 HB
180 HB

Hardness, Rockwell B

84 HRB
—

Hardness, Vickers

168 HV
—

Same in both: Tensile Strength (Ultimate) 490 MPa71.1 ksi · Fatigue Strength (Endurance Limit) 190 MPa27.6 ksi

Physical

Density and transition temperatures.

Density

8 g/cm³0.29 lb/in³
7.9 g/cm³0.29 lb/in³

Liquidus Temperature

1,390°C2,534 °F
1,385°C2,525 °F

Same in both: Melting Point (Solidus) 1,320°C2,408 °F

Thermal

How each material carries heat and how hot it can run.

Thermal Conductivity

12 W/m·K6.9 BTU/hr·ft·°F
13.5 W/m·K7.8 BTU/hr·ft·°F

Specific Heat Capacity

450 J/kg·K0.11 BTU/lb·°F
500 J/kg·K0.12 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

15.8 µm/m·K8.8 µin/in·°F
15 µm/m·K8.3 µin/in·°F

Max Service Temperature (continuous)

400°C752 °F
1,050°C1,922 °F

Min Service Temperature

-196°C-321 °F
-50°C-58 °F

Same in both: Latent Heat of Fusion 270 J/g116 BTU/lb

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).

Galvanic Potential (seawater, vs SCE)

-0.08 V
-0.1 V

Corrosion Resistance

85 / 100
68 / 100

Manufacturability

FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.

Machinability

30 / 100
20 / 100

Machinability Rating (AISI 1212 = 100 %)

35%
15%

Weldability

75 / 100
55 / 100

Formability (cold)

40 / 100
5 / 100

Castability

60 / 100
72 / 100

Brazeability / Solderability

45 / 100
35 / 100

Polishability

70 / 100
45 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

65 MJ/kg27,945 BTU/lb
80 MJ/kg34,394 BTU/lb

Embodied Carbon (primary production)

5.5 kg CO₂/kg
6.2 kg CO₂/kg

Embodied Water

130 L/kg15.6 gal/lb
120 L/kg14.4 gal/lb

Typical Recycled Content

60%
70%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

61 kN·m/kg
62 kN·m/kg

Specific Stiffness (E / density)

23.8 MN·m/kg
21.5 MN·m/kg

Modulus of Resilience

139 kJ/m³
184 kJ/m³

Thermal Diffusivity

3.3 mm²/s
3.4 mm²/s

Thermal Shock Resistance Index

2
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.

3005007001,0001,5002,0007.27.47.67.888.2Density (g/cm³)Yield strength (MPa) — log scale1.48491.4584

Manufacturing and finishing

Capability1.45841.4849
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.

1.4584 vs 1.4849 — frequently asked

Is 1.4849 stronger than 1.4584?

Yes. 1.4849 has a typical yield strength of 250 MPa (36.3 ksi) against 230 MPa (33.4 ksi) for 1.4584 — about 9% more. Tensile strength is 490 MPa (71.1 ksi) vs 490 MPa (71.1 ksi).

Which is cheaper, 1.4584 or 1.4849?

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, 1.4584 or 1.4849?

1.4584, by a small margin. Both rate poor for machinability — 30/100 against 20/100 for 1.4849; for welding the order is 1.4584 first (very good, 75/100) then 1.4849 (good, 55/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in 1.4584 and 1.4849 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.