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Steel 1.2714 vs 718H

Steel · grade comparison

Steel 1.2714 and 718H are both steel grades, both mold steel. 718H is the stronger of the two: yield strength 900 MPa (131 ksi) against 850 MPa (123 ksi) for 1.2714, about 6% more; tensile strength follows at 1,080 MPa (157 ksi) vs 1,000 MPa (145 ksi). 1.2714 runs hotter in service (500°C vs 450°C continuous). On the shop floor, 718H welds better (fair vs poor).

1.2714Choose it when the part sees heat.

718HChoose it when strength drives the design, or when it will be welded.

1.2714 vs 718H: properties

1.2714718H

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

210 GPa30.5 Msi
205 GPa29.7 Msi

Tensile Strength (Ultimate)

1,000 MPa145 ksi
1,080 MPa157 ksi

Yield Strength (0.2% offset)

850 MPa123 ksi
900 MPa131 ksi

Compressive Strength

900 MPa131 ksi
—

Shear Strength

620 MPa89.9 ksi
650 MPa94.3 ksi

Fatigue Strength (Endurance Limit)

460 MPa66.7 ksi
500 MPa72.5 ksi

Fracture Toughness (K_IC)

75 MPa·√m68.3 ksi·√in
70 MPa·√m63.7 ksi·√in

Charpy V-Notch Impact (RT)

40 J29.5 ft·lbf
22 J16.2 ft·lbf

Hardness, Brinell

295 HB
300 HB

Hardness, Rockwell C

31 HRC
32 HRC

Hardness, Vickers

310 HV
320 HV

Same in both: Shear Modulus 80 GPa11.6 Msi · Bulk Modulus 160 GPa23.2 Msi · Poisson's Ratio 0.29 · Elongation at Break 13% · Reduction in Area 45%

Physical

Density and transition temperatures.

Density

7.85 g/cm³0.28 lb/in³
7.8 g/cm³0.28 lb/in³

Same in both: Melting Point (Solidus) 1,420°C2,588 °F · Liquidus Temperature 1,480°C2,696 °F

Thermal

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

Thermal Conductivity

34 W/m·K19.6 BTU/hr·ft·°F
33 W/m·K19.1 BTU/hr·ft·°F

Max Service Temperature (continuous)

500°C932 °F
450°C842 °F

Min Service Temperature

-40°C-40 °F
-20°C-4 °F

Same in both: Specific Heat Capacity 460 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 12.5 µm/m·K6.9 µin/in·°F · Latent Heat of Fusion 250 J/g107 BTU/lb

Electrical

Conductivity and insulation.

Electrical Resistivity

2.5×10⁻⁷ Ω·m9.84 µΩ·in
2.2×10⁻⁷ Ω·m8.66 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

12 / 100
15 / 100

Manufacturability

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

Machinability

50 / 100
48 / 100

Machinability Rating (AISI 1212 = 100 %)

50%
60%

Weldability

25 / 100
40 / 100

Formability (cold)

12 / 100
10 / 100

Brazeability / Solderability

30 / 100
40 / 100

Polishability

60 / 100
80 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Carbon (primary production)

2.4 kg CO₂/kg
2.3 kg CO₂/kg

Embodied Water

50 L/kg6 gal/lb
60 L/kg7.2 gal/lb

Same in both: Embodied Energy (primary production) 34 MJ/kg14,617 BTU/lb · Typical Recycled Content 35%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

127 kN·m/kg
138 kN·m/kg

Specific Stiffness (E / density)

26.8 MN·m/kg
26.3 MN·m/kg

Modulus of Resilience

1,720 kJ/m³
1,976 kJ/m³

Thermal Diffusivity

9.4 mm²/s
9.2 mm²/s

Thermal Shock Resistance Index

13
14

Strength versus weight

Yield strength against density for every steel grade in the FabDigit library; the compared grades are highlighted. Up and left is stronger for its weight.

2005001,0002,0007.588.5Density (g/cm³)Yield strength (MPa) — log scale718H1.2714

Manufacturing and finishing

Capability1.2714718H
Default conditionPrehardPrehard
Relative cost$$ Standard$$ Standard
Min. machined wall0.8 mm0.8 mm
Best machined surfaceRa 1.6 µmRa 1.6 µm

Both are offered for CNC machining. Both take the same 38 finishes: AlCrN, AlTiN, Black Oxide, CVD Al2O3, CVD TiCN, CVD TiN, Cerakote, Chrome Plating, Copper Plating, CrN, DLC, E-Coating and 26 more.

1.2714 vs 718H — frequently asked

Is 718H stronger than 1.2714?

Yes. 718H has a typical yield strength of 900 MPa (131 ksi) against 850 MPa (123 ksi) for 1.2714 — about 6% more. Tensile strength is 1,080 MPa (157 ksi) vs 1,000 MPa (145 ksi).

Which is cheaper, 1.2714 or 718H?

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

Which welds better, 1.2714 or 718H?

718H. Its weldability rates fair (40/100) against poor (25/100) for 1.2714.

Ready to make it?

Upload a CAD file and FabDigit prices the part in 1.2714 and 718H 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.