Steel A48 Class 30 vs A536 60-40-18
Steel · grade comparison
Steel A48 Class 30 and A536 60-40-18 are both steel grades. A536 60-40-18 is the stronger of the two: yield strength 300 MPa (43.5 ksi) against 150 MPa (21.8 ksi) for A48 Class 30, about 100% more; tensile strength follows at 450 MPa (65.3 ksi) vs 214 MPa (31 ksi). A536 60-40-18 is the more ductile: elongation 23% versus 0.6% for A48 Class 30, and A48 Class 30 is harder (210 HB vs 150 HB). A536 60-40-18 is stiffer (169 GPa vs 100 GPa) and A48 Class 30 runs hotter in service (400°C vs 350°C continuous). On the shop floor, A48 Class 30 machines more easily (excellent vs very good) and A48 Class 30 sits in a lower cost tier (budget, $) than A536 60-40-18 (standard, $$).
A48 Class 30Choose it when the part sees heat, or when the part is machined in volume.
A536 60-40-18Choose it when strength drives the design, or when the part is bent, formed or impact-loaded.
A48 Class 30 vs A536 60-40-18: 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.
Elastic (Young's) Modulus
Shear Modulus
Bulk Modulus
Poisson's Ratio
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Compressive Strength
Shear Strength
Fatigue Strength (Endurance Limit)
Fracture Toughness (K_IC)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Rockwell B
Hardness, Vickers
Reduction in Area
Physical
Density and transition temperatures.
Density
Melting Point (Solidus)
Liquidus Temperature
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Thermal Expansion (CTE, 20–100 °C)
Max Service Temperature (continuous)
Min Service Temperature
Same in both: Specific Heat Capacity 460 J/kg·K0.11 BTU/lb·°F · Latent Heat of Fusion 220 J/g94.6 BTU/lb
Electrical
Conductivity and insulation.
Electrical Conductivity
Electrical Resistivity
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Galvanic Potential (seawater, vs SCE)
Corrosion Resistance
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Weldability
Formability (cold)
Castability
Polishability
Same in both: Brazeability / Solderability 40 / 100
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)
Specific Stiffness (E / density)
Modulus of Resilience
Thermal Diffusivity
Thermal Shock Resistance Index
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 | A48 Class 30 | A536 60-40-18 |
|---|---|---|
| Default condition | — | — |
| Relative cost | $ Budget | $$ Standard |
| 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.
A48 Class 30 vs A536 60-40-18 — frequently asked
Is A536 60-40-18 stronger than A48 Class 30?
Yes. A536 60-40-18 has a typical yield strength of 300 MPa (43.5 ksi) against 150 MPa (21.8 ksi) for A48 Class 30 — about 100% more. Tensile strength is 450 MPa (65.3 ksi) vs 214 MPa (31 ksi).
Which is cheaper, A48 Class 30 or A536 60-40-18?
A48 Class 30 is the lower-cost material: it sits in the budget tier ($) while A536 60-40-18 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, A48 Class 30 or A536 60-40-18?
A48 Class 30. Its machinability rates excellent (85/100) against very good (72/100) for A536 60-40-18.
Ready to make it?
Upload a CAD file and FabDigit prices the part in A48 Class 30 and A536 60-40-18 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.