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Stainless Steel 1.4588 vs 1.4837

Stainless Steel · grade comparison

Stainless Steel 1.4588 and 1.4837 are both stainless steel grades. 1.4588 is the stronger of the two: yield strength 300 MPa (43.5 ksi) against 265 MPa (38.4 ksi) for 1.4837, about 13% more; tensile strength follows at 585 MPa (84.8 ksi) vs 520 MPa (75.4 ksi). 1.4588 is the more ductile: elongation 45% versus 12% for 1.4837, and 1.4837 is harder (190 HB vs 170 HB). 1.4837 is lighter (7.7 g/cm³ vs 8 g/cm³ for 1.4588) and 1.4588 is stiffer (195 GPa vs 185 GPa). On the shop floor, 1.4588 welds better (good vs fair) and 1.4837 sits in a lower cost tier (premium, $$$) than 1.4588 (high, $$$$).

1.4588Choose 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.

1.4588 vs 1.4837: properties

1.45881.4837

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

195 GPa28.3 Msi
185 GPa26.8 Msi

Shear Modulus

76 GPa11 Msi
72 GPa10.4 Msi

Bulk Modulus

141 GPa20.5 Msi
150 GPa21.8 Msi

Poisson's Ratio

0.28
0.29

Tensile Strength (Ultimate)

585 MPa84.8 ksi
520 MPa75.4 ksi

Yield Strength (0.2% offset)

300 MPa43.5 ksi
265 MPa38.4 ksi

Elongation at Break

45%
12%

Reduction in Area

40%
15%

Compressive Strength

300 MPa43.5 ksi
270 MPa39.2 ksi

Shear Strength

390 MPa56.6 ksi
340 MPa49.3 ksi

Fatigue Strength (Endurance Limit)

230 MPa33.4 ksi
200 MPa29 ksi

Fracture Toughness (K_IC)

180 MPa·√m164 ksi·√in
—

Charpy V-Notch Impact (RT)

120 J88.5 ft·lbf
15 J11.1 ft·lbf

Hardness, Brinell

170 HB
190 HB

Hardness, Rockwell B

88 HRB
92 HRB

Hardness, Vickers

180 HV
200 HV

Physical

Density and transition temperatures.

Density

8 g/cm³0.29 lb/in³
7.7 g/cm³0.28 lb/in³

Melting Point (Solidus)

1,320°C2,408 °F
1,370°C2,498 °F

Liquidus Temperature

1,400°C2,552 °F
1,420°C2,588 °F

Thermal

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

Thermal Conductivity

12 W/m·K6.9 BTU/hr·ft·°F
14.5 W/m·K8.4 BTU/hr·ft·°F

Thermal Expansion (CTE, 20–100 °C)

14.6 µm/m·K8.1 µin/in·°F
16 µm/m·K8.9 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: 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

2 % IACS
1.9 % IACS

Same in both: Electrical Resistivity 9×10⁻⁷ Ω·m35.4 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.1 V
-0.15 V

Corrosion Resistance

84 / 100
62 / 100

Manufacturability

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

Machinability

25 / 100
22 / 100

Machinability Rating (AISI 1212 = 100 %)

30%
25%

Weldability

60 / 100
40 / 100

Formability (cold)

30 / 100
12 / 100

Castability

55 / 100
72 / 100

Brazeability / Solderability

45 / 100
—

Polishability

65 / 100
40 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

85 MJ/kg36,543 BTU/lb
58 MJ/kg24,936 BTU/lb

Embodied Carbon (primary production)

6.5 kg CO₂/kg
4.3 kg CO₂/kg

Typical Recycled Content

40%
70%

Same in both: Embodied Water 200 L/kg24 gal/lb

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

73 kN·m/kg
68 kN·m/kg

Specific Stiffness (E / density)

24.4 MN·m/kg
24 MN·m/kg

Modulus of Resilience

231 kJ/m³
190 kJ/m³

Thermal Diffusivity

3 mm²/s
3.8 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 scale1.48371.4588

Manufacturing and finishing

Capability1.45881.4837
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.

1.4588 vs 1.4837 — frequently asked

Is 1.4588 stronger than 1.4837?

Yes. 1.4588 has a typical yield strength of 300 MPa (43.5 ksi) against 265 MPa (38.4 ksi) for 1.4837 — about 13% more. Tensile strength is 585 MPa (84.8 ksi) vs 520 MPa (75.4 ksi).

Which is cheaper, 1.4588 or 1.4837?

1.4837 is the lower-cost material: it sits in the premium tier ($$$) while 1.4588 is high ($$$$). 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, 1.4588 or 1.4837?

1.4588. Its weldability rates good (60/100) against fair (40/100) for 1.4837.

Ready to make it?

Upload a CAD file and FabDigit prices the part in 1.4588 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.