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Stainless Steel 1.4552 vs 1.4849

Stainless Steel · grade comparison

Stainless Steel 1.4552 and 1.4849 are both stainless steel grades. 1.4552 is the stronger of the two: tensile strength 530 MPa (76.9 ksi) against 490 MPa (71.1 ksi) for 1.4849, about 8% more. 1.4552 is the more ductile: elongation 39% versus 10% for 1.4849, and 1.4849 is harder (180 HB vs 149 HB). 1.4552 is stiffer (193 GPa vs 170 GPa) and 1.4849 runs hotter in service (1,050°C vs 815°C continuous). On the shop floor, 1.4552 machines more easily (fair vs poor), 1.4552 welds better (very good vs good), and 1.4552 sits in a lower cost tier (premium, $$$) than 1.4849 (high, $$$$).

1.4552Choose it when strength drives the design, or when the part is bent, formed or impact-loaded.

1.4849Choose it when the part sees heat.

1.4552 vs 1.4849: properties

1.45521.4849

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

193 GPa28 Msi
170 GPa24.7 Msi

Shear Modulus

75 GPa10.9 Msi
66 GPa9.6 Msi

Bulk Modulus

145 GPa21 Msi
140 GPa20.3 Msi

Tensile Strength (Ultimate)

530 MPa76.9 ksi
490 MPa71.1 ksi

Elongation at Break

39%
10%

Reduction in Area

50%
10%

Compressive Strength

255 MPa37 ksi
—

Shear Strength

370 MPa53.7 ksi
300 MPa43.5 ksi

Fatigue Strength (Endurance Limit)

210 MPa30.5 ksi
190 MPa27.6 ksi

Fracture Toughness (K_IC)

170 MPa·√m155 ksi·√in
—

Charpy V-Notch Impact (RT)

65 J47.9 ft·lbf
20 J14.8 ft·lbf

Hardness, Brinell

149 HB
180 HB

Hardness, Rockwell B

80 HRB
—

Hardness, Vickers

157 HV
—

Same in both: Poisson's Ratio 0.29 · Yield Strength (0.2% offset) 250 MPa36.3 ksi

Physical

Density and transition temperatures.

Melting Point (Solidus)

1,400°C2,552 °F
1,320°C2,408 °F

Liquidus Temperature

1,450°C2,642 °F
1,385°C2,525 °F

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

16.2 W/m·K9.4 BTU/hr·ft·°F
13.5 W/m·K7.8 BTU/hr·ft·°F

Thermal Expansion (CTE, 20–100 °C)

16.9 µm/m·K9.4 µin/in·°F
15 µm/m·K8.3 µin/in·°F

Latent Heat of Fusion

285 J/g123 BTU/lb
270 J/g116 BTU/lb

Max Service Temperature (continuous)

815°C1,499 °F
1,050°C1,922 °F

Min Service Temperature

-100°C-148 °F
-50°C-58 °F

Same in both: Specific Heat Capacity 500 J/kg·K0.12 BTU/lb·°F

Electrical

Conductivity and insulation.

Electrical Conductivity

2.4 % IACS
1.7 % IACS

Electrical Resistivity

7.2×10⁻⁷ Ω·m28.3 µΩ·in
1×10⁻⁶ Ω·m39.4 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.05 V
-0.1 V

Corrosion Resistance

66 / 100
68 / 100

Manufacturability

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

Machinability

35 / 100
20 / 100

Machinability Rating (AISI 1212 = 100 %)

40%
15%

Weldability

78 / 100
55 / 100

Formability (cold)

25 / 100
5 / 100

Castability

74 / 100
72 / 100

Brazeability / Solderability

45 / 100
35 / 100

Polishability

55 / 100
45 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

55 MJ/kg23,646 BTU/lb
80 MJ/kg34,394 BTU/lb

Embodied Carbon (primary production)

3.8 kg CO₂/kg
6.2 kg CO₂/kg

Embodied Water

180 L/kg21.6 gal/lb
120 L/kg14.4 gal/lb

Typical Recycled Content

80%
70%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

67 kN·m/kg
62 kN·m/kg

Specific Stiffness (E / density)

24.4 MN·m/kg
21.5 MN·m/kg

Modulus of Resilience

162 kJ/m³
184 kJ/m³

Thermal Diffusivity

4.1 mm²/s
3.4 mm²/s

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.

3005007001,0001,5002,0007.27.47.67.888.2Density (g/cm³)Yield strength (MPa) — log scale1.48491.4552

Manufacturing and finishing

Capability1.45521.4849
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.

1.4552 vs 1.4849 — frequently asked

Is 1.4552 stronger than 1.4849?

Yes. 1.4552 has a typical tensile strength of 530 MPa (76.9 ksi) against 490 MPa (71.1 ksi) for 1.4849 — about 8% more.

Which is cheaper, 1.4552 or 1.4849?

1.4552 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, 1.4552 or 1.4849?

1.4552. Its machinability rates fair (35/100) against poor (20/100) for 1.4849; for welding the order is 1.4552 first (very good, 78/100) then 1.4849 (good, 55/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in 1.4552 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.