Steel E80C-B6-AW vs E80C-B6-M
Steel · E80C-B6 temper comparison
E80C-B6-AW and E80C-B6-M are two conditions of the same steel grade, E80C-B6: AW (as-welded deposit) versus M (thermomechanically controlled processed). The chemistry is identical, so every difference below comes from the condition. E80C-B6-AW is the stronger of the two: yield strength 680 MPa (98.6 ksi) against 505 MPa (73.2 ksi) for E80C-B6-M, about 35% more; tensile strength follows at 850 MPa (123 ksi) vs 600 MPa (87 ksi). In exchange, E80C-B6-M is the more ductile: elongation 23% versus 12% for E80C-B6-AW, and E80C-B6-AW is harder (355 HB vs 190 HB). E80C-B6-M runs hotter in service (600°C vs 450°C continuous). On the shop floor, E80C-B6-M machines more easily (fair vs poor) and E80C-B6-M welds better (fair vs poor).
E80C-B6-AWChoose it when strength drives the design.
E80C-B6-MChoose it when the part is bent, formed or impact-loaded, or when the part sees heat.
E80C-B6-AW vs E80C-B6-M: 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)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Rockwell B
Hardness, Vickers
Same in both: Elastic (Young's) Modulus 210 GPa30.5 Msi · Shear Modulus 81 GPa11.7 Msi · Bulk Modulus 160 GPa23.2 Msi · Poisson's Ratio 0.29
Physical
Density and transition temperatures.
Same in both: Density 7.75 g/cm³0.28 lb/in³ · Melting Point (Solidus) 1,420°C2,588 °F · Liquidus Temperature 1,500°C2,732 °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 480 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 12.2 µm/m·K6.8 µin/in·°F · Latent Heat of Fusion 270 J/g116 BTU/lb · Min Service Temperature -20°C-4 °F
Electrical
Conductivity and insulation.
Electrical Resistivity
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Corrosion Resistance
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Weldability
Same in both: 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) 2.6 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.
E80C-B6-AW vs E80C-B6-M — frequently asked
Is E80C-B6-AW stronger than E80C-B6-M?
Yes. E80C-B6-AW has a typical yield strength of 680 MPa (98.6 ksi) against 505 MPa (73.2 ksi) for E80C-B6-M — about 35% more. Tensile strength is 850 MPa (123 ksi) vs 600 MPa (87 ksi).
Which condition does FabDigit quote by default, AW or M?
PWHT-745 is the default E80C-B6 condition in the FabDigit quote flow (neither AW nor M). 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, E80C-B6-AW or E80C-B6-M?
E80C-B6-M. Its machinability rates fair (42/100) against poor (15/100) for E80C-B6-AW; for welding the order is E80C-B6-M first (fair, 48/100) then E80C-B6-AW (poor, 30/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in E80C-B6-AW and E80C-B6-M 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.