Steel A536 65-45-12 vs A536 80-55-06
Steel · grade comparison
Steel A536 65-45-12 and A536 80-55-06 are both steel grades. A536 80-55-06 is the stronger of the two: yield strength 400 MPa (58 ksi) against 340 MPa (49.3 ksi) for A536 65-45-12, about 18% more; tensile strength follows at 575 MPa (83.4 ksi) vs 480 MPa (69.6 ksi). In exchange, A536 65-45-12 is the more ductile: elongation 14% versus 8% for A536 80-55-06, and A536 80-55-06 is harder (195 HB vs 170 HB). On the shop floor, A536 80-55-06 sits in a lower cost tier (budget, $) than A536 65-45-12 (standard, $$).
A536 65-45-12Choose it when the part is bent, formed or impact-loaded.
A536 80-55-06Choose it when strength drives the design, or when cost is the deciding factor.
A536 65-45-12 vs A536 80-55-06: 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.
Bulk Modulus
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Reduction in Area
Shear Strength
Fatigue Strength (Endurance Limit)
Fracture Toughness (K_IC)
Hardness, Brinell
Hardness, Rockwell B
Hardness, Vickers
Compressive Strength
Same in both: Elastic (Young's) Modulus 169 GPa24.5 Msi · Shear Modulus 65 GPa9.4 Msi · Poisson's Ratio 0.28 · Charpy V-Notch Impact (RT) 12 J8.9 ft·lbf
Physical
Density and transition temperatures.
Liquidus Temperature
Same in both: Density 7.1 g/cm³0.26 lb/in³ · Melting Point (Solidus) 1,150°C2,102 °F
Thermal
How each material carries heat and how hot it can run.
Same in both: Thermal Conductivity 35 W/m·K20.2 BTU/hr·ft·°F · Specific Heat Capacity 460 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 12 µm/m·K6.7 µin/in·°F · Latent Heat of Fusion 220 J/g94.6 BTU/lb · Max Service Temperature (continuous) 350°C662 °F · Min Service Temperature -20°C-4 °F
Electrical
Conductivity and insulation.
Same in both: Electrical Conductivity 2.9 % IACS · Electrical Resistivity 6×10⁻⁷ Ω·m23.6 µΩ·in
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Same in both: Galvanic Potential (seawater, vs SCE) -0.61 V · Corrosion Resistance 15 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Weldability
Formability (cold)
Castability
Brazeability / Solderability
Polishability
Same in both: Machinability Rating (AISI 1212 = 100 %) 70%
Sustainability
Primary-production footprint per kilogram.
Embodied Energy (primary production)
Embodied Carbon (primary production)
Embodied Water
Typical Recycled Content
Common Calculations
Ratios derived from the values above.
Specific Strength (UTS / density)
Modulus of Resilience
Thermal Shock Resistance Index
Same in both: Specific Stiffness (E / density) 23.8 MN·m/kg · Thermal Diffusivity 10.7 mm²/s
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.
Manufacturing and finishing
| Capability | A536 65-45-12 | A536 80-55-06 |
|---|---|---|
| Default condition | — | — |
| Relative cost | $$ Standard | $ Budget |
| Min. machined wall | — | — |
| Best machined surface | — | — |
Both take the same 9 finishes: Copper Plating, Electroless Nickel (EN), Epoxy Coating, Gold Plating, Hard Chrome Plating, Manganese Phosphate, Plasma Spray, Silver Plating, Zinc Phosphate.
A536 65-45-12 vs A536 80-55-06 — frequently asked
Is A536 80-55-06 stronger than A536 65-45-12?
Yes. A536 80-55-06 has a typical yield strength of 400 MPa (58 ksi) against 340 MPa (49.3 ksi) for A536 65-45-12 — about 18% more. Tensile strength is 575 MPa (83.4 ksi) vs 480 MPa (69.6 ksi).
Which is cheaper, A536 65-45-12 or A536 80-55-06?
A536 80-55-06 is the lower-cost material: it sits in the budget tier ($) while A536 65-45-12 is standard ($$). Part price depends far more on geometry, tolerance and quantity than on raw stock — upload a CAD file for a live quote.
Which welds better, A536 65-45-12 or A536 80-55-06?
A536 65-45-12. Its weldability rates fair (35/100) against poor (30/100) for A536 80-55-06.
Ready to make it?
Upload a CAD file and FabDigit prices the part in A536 65-45-12 and A536 80-55-06 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.