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Stainless Steel E308LT-1 vs ER316

Stainless Steel · grade comparison

Stainless Steel E308LT-1 and ER316 are both stainless steel grades. Both yield at about 410 MPa — strength does not separate them. On the shop floor, E308LT-1 forms better (very good vs good).

E308LT-1 vs ER316: properties

E308LT-1ER316

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

195 GPa28.3 Msi
193 GPa28 Msi

Poisson's Ratio

0.29
0.3

Yield Strength (0.2% offset)

410 MPa59.5 ksi
420 MPa60.9 ksi

Elongation at Break

40%
38%

Reduction in Area

55%
45%

Compressive Strength

410 MPa59.5 ksi
420 MPa60.9 ksi

Shear Strength

380 MPa55.1 ksi
400 MPa58 ksi

Fatigue Strength (Endurance Limit)

225 MPa32.6 ksi
235 MPa34.1 ksi

Charpy V-Notch Impact (RT)

52 J38.4 ft·lbf
95 J70.1 ft·lbf

Hardness, Brinell

180 HB
185 HB

Hardness, Rockwell B

88 HRB
89 HRB

Hardness, Vickers

190 HV
195 HV

Same in both: Shear Modulus 77 GPa11.2 Msi · Bulk Modulus 140 GPa20.3 Msi · Tensile Strength (Ultimate) 590 MPa85.6 ksi · Fracture Toughness (K_IC) 140 MPa·√m127 ksi·√in

Physical

Density and transition temperatures.

Density

7.9 g/cm³0.29 lb/in³
7.98 g/cm³0.29 lb/in³

Melting Point (Solidus)

1,400°C2,552 °F
1,385°C2,525 °F

Liquidus Temperature

1,450°C2,642 °F
1,425°C2,597 °F

Thermal

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

Thermal Conductivity

15 W/m·K8.7 BTU/hr·ft·°F
16.3 W/m·K9.4 BTU/hr·ft·°F

Thermal Expansion (CTE, 20–100 °C)

16.6 µm/m·K9.2 µin/in·°F
16 µm/m·K8.9 µin/in·°F

Latent Heat of Fusion

280 J/g120 BTU/lb
270 J/g116 BTU/lb

Max Service Temperature (continuous)

800°C1,472 °F
760°C1,400 °F

Min Service Temperature

-196°C-321 °F
-100°C-148 °F

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

Electrical

Conductivity and insulation.

Electrical Resistivity

7.4×10⁻⁷ Ω·m29.1 µΩ·in
7.5×10⁻⁷ Ω·m29.5 µΩ·in

Same in both: Electrical Conductivity 2.3 % IACS

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.1 V
-0.08 V

Corrosion Resistance

63 / 100
70 / 100

Manufacturability

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

Machinability

36 / 100
35 / 100

Machinability Rating (AISI 1212 = 100 %)

42%
32%

Weldability

92 / 100
90 / 100

Formability (cold)

70 / 100
55 / 100

Polishability

60 / 100
70 / 100

Brazeability / Solderability

—
60 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

62 MJ/kg26,655 BTU/lb
75 MJ/kg32,244 BTU/lb

Embodied Carbon (primary production)

6.3 kg CO₂/kg
5.2 kg CO₂/kg

Typical Recycled Content

60%
55%

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

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

75 kN·m/kg
74 kN·m/kg

Specific Stiffness (E / density)

24.7 MN·m/kg
24.2 MN·m/kg

Modulus of Resilience

431 kJ/m³
457 kJ/m³

Thermal Diffusivity

3.8 mm²/s
4.1 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 scaleER316E308LT-1

Manufacturing and finishing

CapabilityE308LT-1ER316
Default condition——
Relative cost$$$ Premium$$$ 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.

E308LT-1 vs ER316 — frequently asked

What is the difference between E308LT-1 and ER316?

Stainless Steel E308LT-1 and ER316 are both stainless steel grades. Both yield at about 410 MPa — strength does not separate them. On the shop floor, E308LT-1 forms better (very good vs good).

Which is cheaper, E308LT-1 or ER316?

Both sit in the same relative cost tier ($$$, premium); the part price will be decided by machining time, tolerance and quantity rather than by the material.

Ready to make it?

Upload a CAD file and FabDigit prices the part in E308LT-1 and ER316 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.