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Stainless Steel E410NiMo vs ER308H

Stainless Steel · grade comparison

Stainless Steel E410NiMo and ER308H are both stainless steel grades. E410NiMo is the stronger of the two: yield strength 760 MPa (110 ksi) against 415 MPa (60.2 ksi) for ER308H, about 83% more; tensile strength follows at 900 MPa (131 ksi) vs 590 MPa (85.6 ksi). In exchange, ER308H is the more ductile: elongation 38% versus 15% for E410NiMo, and E410NiMo is harder (320 HB vs 175 HB). ER308H runs hotter in service (800°C vs 400°C continuous) and E410NiMo conducts heat better (25 W/m·K vs 16.2 W/m·K). On the shop floor, ER308H welds better (excellent vs good) and ER308H sits in a lower cost tier (premium, $$$) than E410NiMo (high, $$$$).

E410NiMoChoose it when strength drives the design.

ER308HChoose it when the part is bent, formed or impact-loaded, or when the part sees heat.

E410NiMo vs ER308H: properties

E410NiMoER308H

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

200 GPa29 Msi
196 GPa28.4 Msi

Poisson's Ratio

0.3
0.29

Tensile Strength (Ultimate)

900 MPa131 ksi
590 MPa85.6 ksi

Yield Strength (0.2% offset)

760 MPa110 ksi
415 MPa60.2 ksi

Elongation at Break

15%
38%

Reduction in Area

45%
55%

Shear Strength

540 MPa78.3 ksi
400 MPa58 ksi

Fatigue Strength (Endurance Limit)

400 MPa58 ksi
230 MPa33.4 ksi

Fracture Toughness (K_IC)

60 MPa·√m54.6 ksi·√in
180 MPa·√m164 ksi·√in

Charpy V-Notch Impact (RT)

40 J29.5 ft·lbf
85 J62.7 ft·lbf

Hardness, Brinell

320 HB
175 HB

Hardness, Rockwell C

34 HRC
—

Hardness, Vickers

340 HV
185 HV

Compressive Strength

—
420 MPa60.9 ksi

Hardness, Rockwell B

—
87 HRB

Same in both: Shear Modulus 77 GPa11.2 Msi · Bulk Modulus 160 GPa23.2 Msi

Physical

Density and transition temperatures.

Density

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

Liquidus Temperature

1,480°C2,696 °F
1,450°C2,642 °F

Same in both: Melting Point (Solidus) 1,400°C2,552 °F

Thermal

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

Thermal Conductivity

25 W/m·K14.4 BTU/hr·ft·°F
16.2 W/m·K9.4 BTU/hr·ft·°F

Specific Heat Capacity

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

Thermal Expansion (CTE, 20–100 °C)

10.5 µm/m·K5.8 µin/in·°F
16.5 µm/m·K9.2 µin/in·°F

Latent Heat of Fusion

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

Max Service Temperature (continuous)

400°C752 °F
800°C1,472 °F

Min Service Temperature

-40°C-40 °F
-196°C-321 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

2.2 % IACS
2.4 % IACS

Electrical Resistivity

7.8×10⁻⁷ Ω·m30.7 µΩ·in
7.2×10⁻⁷ Ω·m28.3 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.3 V
-0.05 V

Corrosion Resistance

42 / 100
58 / 100

Manufacturability

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

Machinability

32 / 100
38 / 100

Machinability Rating (AISI 1212 = 100 %)

30%
40%

Weldability

55 / 100
88 / 100

Polishability

70 / 100
65 / 100

Formability (cold)

—
55 / 100

Brazeability / Solderability

—
60 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

48 MJ/kg20,636 BTU/lb
55 MJ/kg23,646 BTU/lb

Embodied Carbon (primary production)

3.6 kg CO₂/kg
4.5 kg CO₂/kg

Embodied Water

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

Typical Recycled Content

55%
60%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

117 kN·m/kg
75 kN·m/kg

Specific Stiffness (E / density)

26 MN·m/kg
24.8 MN·m/kg

Modulus of Resilience

1,444 kJ/m³
439 kJ/m³

Thermal Diffusivity

7.1 mm²/s
4.1 mm²/s

Thermal Shock Resistance Index

11
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 scaleER308HE410NiMo

Manufacturing and finishing

CapabilityE410NiMoER308H
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.

E410NiMo vs ER308H — frequently asked

Is E410NiMo stronger than ER308H?

Yes. E410NiMo has a typical yield strength of 760 MPa (110 ksi) against 415 MPa (60.2 ksi) for ER308H — about 83% more. Tensile strength is 900 MPa (131 ksi) vs 590 MPa (85.6 ksi).

Which is cheaper, E410NiMo or ER308H?

ER308H is the lower-cost material: it sits in the premium tier ($$$) while E410NiMo is high ($$$$). 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, E410NiMo or ER308H?

ER308H. Its machinability rates fair (38/100) against poor (32/100) for E410NiMo; for welding the order is ER308H first (excellent, 88/100) then E410NiMo (good, 55/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in E410NiMo and ER308H 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.