Steel E100C-K3-AW vs E100C-K3 PWHT
Steel · E100C-K3 temper comparison
E100C-K3-AW and E100C-K3 PWHT are two conditions of the same steel grade, E100C-K3: AW (as-welded deposit) versus PWHT (post-weld heat treated). The chemistry is identical, so every difference below comes from the condition. E100C-K3-AW is the stronger of the two: yield strength 660 MPa (95.7 ksi) against 615 MPa (89.2 ksi) for E100C-K3 PWHT, about 7% more. In exchange, E100C-K3 PWHT is the more ductile: elongation 23% versus 20% for E100C-K3-AW, and E100C-K3-AW is harder (235 HB vs 215 HB).
E100C-K3-AWChoose it when strength drives the design.
E100C-K3 PWHTChoose it when the part is bent, formed or impact-loaded.
E100C-K3-AW vs E100C-K3 PWHT: propertiesHow to read these bars
- One bar per material. A full bar is the highest value among all steel grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
How to read these bars
- One bar per material. A full bar is the highest value among all steel grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
Mechanical
Strength, stiffness, ductility and hardness at room temperature.
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Reduction in Area
Shear Strength
Fatigue Strength (Endurance Limit)
Fracture Toughness (K_IC)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Rockwell C
Hardness, Vickers
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) 1,450°C2,642 °F · Liquidus Temperature 1,505°C2,741 °F
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Max Service Temperature (continuous)
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 -40°C-40 °F
Electrical
Conductivity and insulation.
Electrical Conductivity
Electrical Resistivity
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Same in both: Galvanic Potential (seawater, vs SCE) -0.62 V · Corrosion Resistance 14 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Weldability
Formability (cold)
Same in both: Brazeability / Solderability 50 / 100 · Polishability 55 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 36 MJ/kg15,477 BTU/lb · Embodied Carbon (primary production) 2.6 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.
E100C-K3-AW vs E100C-K3 PWHT — frequently asked
Is E100C-K3-AW stronger than E100C-K3 PWHT?
Yes. E100C-K3-AW has a typical yield strength of 660 MPa (95.7 ksi) against 615 MPa (89.2 ksi) for E100C-K3 PWHT — about 7% more. Tensile strength is 745 MPa (108 ksi) vs 710 MPa (103 ksi).
Which condition does FabDigit quote by default, AW or PWHT?
AW is the default E100C-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, E100C-K3-AW or E100C-K3 PWHT?
E100C-K3 PWHT, by a small margin. Both rate fair for machinability — 48/100 against 42/100 for E100C-K3-AW.
Ready to make it?
Upload a CAD file and FabDigit prices the part in E100C-K3-AW and E100C-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.