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Steel E110C-K3-AW vs E110C-K3 PWHT

Steel · E110C-K3 temper comparison

E110C-K3-AW and E110C-K3 PWHT are two conditions of the same steel grade, E110C-K3: AW (as-welded deposit) versus PWHT (post-weld heat treated). The chemistry is identical, so every difference below comes from the condition. E110C-K3-AW is the stronger of the two: yield strength 720 MPa (104 ksi) against 670 MPa (97.2 ksi) for E110C-K3 PWHT, about 7% more; tensile strength follows at 810 MPa (117 ksi) vs 760 MPa (110 ksi). E110C-K3-AW is harder — 250 HB against 230 HB for E110C-K3 PWHT — which matters for wear surfaces and threads.

E110C-K3-AWChoose it when strength drives the design, or when surface hardness matters.

E110C-K3-AW vs E110C-K3 PWHT: properties

E110C-K3-AWE110C-K3 PWHT

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

810 MPa117 ksi
760 MPa110 ksi

Yield Strength (0.2% offset)

720 MPa104 ksi
670 MPa97.2 ksi

Elongation at Break

19%
21%

Reduction in Area

55%
60%

Compressive Strength

730 MPa106 ksi
680 MPa98.6 ksi

Shear Strength

480 MPa69.6 ksi
455 MPa66 ksi

Fatigue Strength (Endurance Limit)

350 MPa50.8 ksi
335 MPa48.6 ksi

Fracture Toughness (K_IC)

100 MPa·√m91 ksi·√in
120 MPa·√m109 ksi·√in

Charpy V-Notch Impact (RT)

75 J55.3 ft·lbf
85 J62.7 ft·lbf

Hardness, Brinell

250 HB
230 HB

Hardness, Rockwell C

24 HRC
20 HRC

Hardness, Vickers

265 HV
240 HV

Same in both: Elastic (Young's) Modulus 205 GPa29.7 Msi · Shear Modulus 80 GPa11.6 Msi · Bulk Modulus 160 GPa23.2 Msi · Poisson's Ratio 0.29

Physical

Density and transition temperatures.

Same in both: Density 7.8 g/cm³0.28 lb/in³ · Melting Point (Solidus) 1,460°C2,660 °F · Liquidus Temperature 1,510°C2,750 °F

Thermal

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

Thermal Conductivity

38 W/m·K22 BTU/hr·ft·°F
39 W/m·K22.5 BTU/hr·ft·°F

Max Service Temperature (continuous)

400°C752 °F
425°C797 °F

Same in both: Specific Heat Capacity 470 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 12.3 µm/m·K6.8 µin/in·°F · Latent Heat of Fusion 270 J/g116 BTU/lb · Min Service Temperature -51°C-60 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

7.5 % IACS
7.6 % IACS

Electrical Resistivity

2.3×10⁻⁷ Ω·m9.06 µΩ·in
2.27×10⁻⁷ Ω·m8.94 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Same in both: Corrosion Resistance 14 / 100

Manufacturability

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

Machinability

40 / 100
45 / 100

Machinability Rating (AISI 1212 = 100 %)

45%
50%

Formability (cold)

35 / 100
40 / 100

Same in both: Weldability 90 / 100 · Brazeability / Solderability 50 / 100 · Polishability 55 / 100

Sustainability

Primary-production footprint per kilogram.

Same in both: Embodied Energy (primary production) 33 MJ/kg14,187 BTU/lb · Embodied Carbon (primary production) 2.5 kg CO₂/kg · Embodied Water 60 L/kg7.2 gal/lb · Typical Recycled Content 25%

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 scaleE110C-K3

E110C-K3-AW vs E110C-K3 PWHT — frequently asked

Is E110C-K3-AW stronger than E110C-K3 PWHT?

Yes. E110C-K3-AW has a typical yield strength of 720 MPa (104 ksi) against 670 MPa (97.2 ksi) for E110C-K3 PWHT — about 7% more. Tensile strength is 810 MPa (117 ksi) vs 760 MPa (110 ksi).

Which condition does FabDigit quote by default, AW or PWHT?

AW is the default E110C-K3 condition in the FabDigit quote flow. The other condition is available on request or by drawing note — specify it in the material field or the part notes and the quote is priced for it.

Which is easier to machine, E110C-K3-AW or E110C-K3 PWHT?

E110C-K3 PWHT, by a small margin. Both rate fair for machinability — 45/100 against 40/100 for E110C-K3-AW.

Ready to make it?

Upload a CAD file and FabDigit prices the part in E110C-K3-AW and E110C-K3 PWHT 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.