Steel A536 100-70-03 vs A536 80-55-06
Steel · grade comparison
Steel A536 100-70-03 and A536 80-55-06 are both steel grades. A536 100-70-03 is the stronger of the two: yield strength 520 MPa (75.4 ksi) against 400 MPa (58 ksi) for A536 80-55-06, about 30% more; tensile strength follows at 760 MPa (110 ksi) vs 575 MPa (83.4 ksi). In exchange, A536 80-55-06 is the more ductile: elongation 8% versus 4% for A536 100-70-03, and A536 100-70-03 is harder (241 HB vs 195 HB). A536 100-70-03 runs hotter in service (400°C vs 350°C continuous). On the shop floor, A536 80-55-06 machines more easily (very good vs good) and A536 80-55-06 sits in a lower cost tier (budget, $) than A536 100-70-03 (standard, $$).
A536 100-70-03Choose it when strength drives the design, or when the part sees heat.
A536 80-55-06Choose it when the part is bent, formed or impact-loaded, or when the part is machined in volume.
A536 100-70-03 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
Compressive Strength
Shear Strength
Fatigue Strength (Endurance Limit)
Fracture Toughness (K_IC)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Rockwell B
Hardness, Rockwell C
Hardness, Vickers
Same in both: Elastic (Young's) Modulus 169 GPa24.5 Msi · Shear Modulus 65 GPa9.4 Msi · Poisson's Ratio 0.28
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.
Thermal Conductivity
Max Service Temperature (continuous)
Same in both: 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 · 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
Machinability Rating (AISI 1212 = 100 %)
Weldability
Formability (cold)
Castability
Brazeability / Solderability
Polishability
Sustainability
Primary-production footprint per kilogram.
Embodied Carbon (primary production)
Embodied Water
Typical Recycled Content
Same in both: Embodied Energy (primary production) 20 MJ/kg8,598 BTU/lb
Common Calculations
Ratios derived from the values above.
Specific Strength (UTS / density)
Modulus of Resilience
Thermal Diffusivity
Thermal Shock Resistance Index
Same in both: Specific Stiffness (E / density) 23.8 MN·m/kg
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 100-70-03 | 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 100-70-03 vs A536 80-55-06 — frequently asked
Is A536 100-70-03 stronger than A536 80-55-06?
Yes. A536 100-70-03 has a typical yield strength of 520 MPa (75.4 ksi) against 400 MPa (58 ksi) for A536 80-55-06 — about 30% more. Tensile strength is 760 MPa (110 ksi) vs 575 MPa (83.4 ksi).
Which is cheaper, A536 100-70-03 or A536 80-55-06?
A536 80-55-06 is the lower-cost material: it sits in the budget tier ($) while A536 100-70-03 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 is easier to machine, A536 100-70-03 or A536 80-55-06?
A536 80-55-06. Its machinability rates very good (70/100) against good (55/100) for A536 100-70-03; for welding the order is A536 80-55-06 first (poor, 30/100) then A536 100-70-03 (poor, 25/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in A536 100-70-03 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.