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Stainless Steel ER19-10H vs ER308

Stainless Steel · grade comparison

Stainless Steel ER19-10H and ER308 are both stainless steel grades. Both yield at about 405 MPa — strength does not separate them. On the shop floor, ER308 sits in a lower cost tier (premium, $$$) than ER19-10H (high, $$$$).

ER308Choose it when cost is the deciding factor.

ER19-10H vs ER308: properties

ER19-10HER308

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Bulk Modulus

160 GPa23.2 Msi
145 GPa21 Msi

Poisson's Ratio

0.29
0.3

Yield Strength (0.2% offset)

405 MPa58.7 ksi
400 MPa58 ksi

Compressive Strength

410 MPa59.5 ksi
400 MPa58 ksi

Shear Strength

390 MPa56.6 ksi
400 MPa58 ksi

Fatigue Strength (Endurance Limit)

225 MPa32.6 ksi
240 MPa34.8 ksi

Fracture Toughness (K_IC)

140 MPa·√m127 ksi·√in
150 MPa·√m137 ksi·√in

Charpy V-Notch Impact (RT)

80 J59 ft·lbf
90 J66.4 ft·lbf

Hardness, Brinell

180 HB
185 HB

Hardness, Rockwell B

88 HRB
90 HRB

Hardness, Vickers

190 HV
195 HV

Same in both: Elastic (Young's) Modulus 195 GPa28.3 Msi · Shear Modulus 77 GPa11.2 Msi · Tensile Strength (Ultimate) 600 MPa87 ksi · Elongation at Break 40% · Reduction in Area 55%

Physical

Density and transition temperatures.

Same in both: Density 7.9 g/cm³0.29 lb/in³ · Melting Point (Solidus) 1,400°C2,552 °F · Liquidus Temperature 1,450°C2,642 °F

Thermal

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

Thermal Conductivity

15 W/m·K8.7 BTU/hr·ft·°F
15.5 W/m·K9 BTU/hr·ft·°F

Thermal Expansion (CTE, 20–100 °C)

17.3 µm/m·K9.6 µin/in·°F
16.9 µm/m·K9.4 µin/in·°F

Latent Heat of Fusion

285 J/g123 BTU/lb
280 J/g120 BTU/lb

Same in both: Specific Heat Capacity 500 J/kg·K0.12 BTU/lb·°F · Max Service Temperature (continuous) 760°C1,400 °F · Min Service Temperature -196°C-321 °F

Electrical

Conductivity and insulation.

Electrical Resistivity

7.2×10⁻⁷ Ω·m28.3 µΩ·in
7.4×10⁻⁷ Ω·m29.1 µΩ·in

Same in both: Electrical Conductivity 2.4 % IACS

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

55 / 100
65 / 100

Same in both: Galvanic Potential (seawater, vs SCE) -0.08 V

Manufacturability

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

Machinability

36 / 100
38 / 100

Machinability Rating (AISI 1212 = 100 %)

38%
45%

Weldability

92 / 100
95 / 100

Formability (cold)

60 / 100
55 / 100

Polishability

65 / 100
70 / 100

Same in both: Brazeability / Solderability 60 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

55 MJ/kg23,646 BTU/lb
57 MJ/kg24,506 BTU/lb

Embodied Carbon (primary production)

4.5 kg CO₂/kg
5 kg CO₂/kg

Typical Recycled Content

60%
45%

Same in both: Embodied Water 130 L/kg15.6 gal/lb

Common Calculations

Ratios derived from the values above.

Modulus of Resilience

421 kJ/m³
410 kJ/m³

Thermal Diffusivity

3.8 mm²/s
3.9 mm²/s

Same in both: Specific Strength (UTS / density) 76 kN·m/kg · Specific Stiffness (E / density) 24.7 MN·m/kg · 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 scaleER308ER19-10H

Manufacturing and finishing

CapabilityER19-10HER308
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.

ER19-10H vs ER308 — frequently asked

What is the difference between ER19-10H and ER308?

Stainless Steel ER19-10H and ER308 are both stainless steel grades. Both yield at about 405 MPa — strength does not separate them. On the shop floor, ER308 sits in a lower cost tier (premium, $$$) than ER19-10H (high, $$$$).

Which is cheaper, ER19-10H or ER308?

ER308 is the lower-cost material: it sits in the premium tier ($$$) while ER19-10H is high ($$$$). Part price depends far more on geometry, tolerance and quantity than on raw stock — upload a CAD file for a live quote.

When should I choose ER19-10H over ER308?

Pick ER308 when cost is the deciding factor.

Ready to make it?

Upload a CAD file and FabDigit prices the part in ER19-10H and ER308 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.