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Stainless Steel 1.4849 vs HP

Stainless Steel · grade comparison

Stainless Steel 1.4849 and HP are both stainless steel grades. HP is the stronger of the two: yield strength 280 MPa (40.6 ksi) against 250 MPa (36.3 ksi) for 1.4849, about 12% more; tensile strength follows at 520 MPa (75.4 ksi) vs 490 MPa (71.1 ksi). HP is harder — 190 HB against 180 HB for 1.4849 — which matters for wear surfaces and threads. HP is stiffer (190 GPa vs 170 GPa). On the shop floor, 1.4849 welds better (good vs fair).

1.4849Choose it when it will be welded.

HPChoose it when strength drives the design, or when surface hardness matters.

1.4849 vs HP: properties

1.4849HP

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

170 GPa24.7 Msi
190 GPa27.6 Msi

Shear Modulus

66 GPa9.6 Msi
73 GPa10.6 Msi

Bulk Modulus

140 GPa20.3 Msi
150 GPa21.8 Msi

Tensile Strength (Ultimate)

490 MPa71.1 ksi
520 MPa75.4 ksi

Yield Strength (0.2% offset)

250 MPa36.3 ksi
280 MPa40.6 ksi

Reduction in Area

10%
12%

Shear Strength

300 MPa43.5 ksi
320 MPa46.4 ksi

Fatigue Strength (Endurance Limit)

190 MPa27.6 ksi
200 MPa29 ksi

Charpy V-Notch Impact (RT)

20 J14.8 ft·lbf
25 J18.4 ft·lbf

Hardness, Brinell

180 HB
190 HB

Compressive Strength

—
290 MPa42.1 ksi

Fracture Toughness (K_IC)

—
50 MPa·√m45.5 ksi·√in

Hardness, Rockwell B

—
90 HRB

Hardness, Vickers

—
200 HV

Same in both: Poisson's Ratio 0.29 · Elongation at Break 10%

Physical

Density and transition temperatures.

Melting Point (Solidus)

1,320°C2,408 °F
1,330°C2,426 °F

Liquidus Temperature

1,385°C2,525 °F
1,400°C2,552 °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

13.5 W/m·K7.8 BTU/hr·ft·°F
12.5 W/m·K7.2 BTU/hr·ft·°F

Thermal Expansion (CTE, 20–100 °C)

15 µm/m·K8.3 µin/in·°F
15.5 µm/m·K8.6 µin/in·°F

Latent Heat of Fusion

270 J/g116 BTU/lb
—

Max Service Temperature (continuous)

1,050°C1,922 °F
1,100°C2,012 °F

Min Service Temperature

-50°C-58 °F
—

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

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).

Corrosion Resistance

68 / 100
62 / 100

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

20 / 100
22 / 100

Machinability Rating (AISI 1212 = 100 %)

15%
20%

Weldability

55 / 100
40 / 100

Formability (cold)

5 / 100
8 / 100

Castability

72 / 100
80 / 100

Brazeability / Solderability

35 / 100
30 / 100

Polishability

45 / 100
40 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

80 MJ/kg34,394 BTU/lb
75 MJ/kg32,244 BTU/lb

Embodied Carbon (primary production)

6.2 kg CO₂/kg
5.5 kg CO₂/kg

Embodied Water

120 L/kg14.4 gal/lb
110 L/kg13.2 gal/lb

Typical Recycled Content

70%
65%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

62 kN·m/kg
66 kN·m/kg

Specific Stiffness (E / density)

21.5 MN·m/kg
24.1 MN·m/kg

Modulus of Resilience

184 kJ/m³
206 kJ/m³

Thermal Diffusivity

3.4 mm²/s
3.2 mm²/s

Thermal Shock Resistance Index

3
2

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 scale1.4849HP

Manufacturing and finishing

Capability1.4849HP
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.

1.4849 vs HP — frequently asked

Is HP stronger than 1.4849?

Yes. HP has a typical yield strength of 280 MPa (40.6 ksi) against 250 MPa (36.3 ksi) for 1.4849 — about 12% more. Tensile strength is 520 MPa (75.4 ksi) vs 490 MPa (71.1 ksi).

Which is cheaper, 1.4849 or HP?

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 welds better, 1.4849 or HP?

1.4849. Its weldability rates good (55/100) against fair (40/100) for HP.

Ready to make it?

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