Steel B50A470 vs M36
Steel · grade comparison
Steel B50A470 and M36 are both steel grades, both electrical steel. M36 is the stronger of the two: yield strength 550 MPa (79.8 ksi) against 305 MPa (44.2 ksi) for B50A470, about 80% more; tensile strength follows at 880 MPa (128 ksi) vs 450 MPa (65.3 ksi). In exchange, B50A470 is the more ductile: elongation 30% versus 14% for M36, and M36 is harder (248 HB vs 157 HB). B50A470 is lighter (7.7 g/cm³ vs 8.19 g/cm³ for M36) and M36 is stiffer (217 GPa vs 200 GPa). On the shop floor, B50A470 machines more easily (good vs poor) and B50A470 welds better (fair vs poor).
B50A470Choose it when the part is bent, formed or impact-loaded, or when weight is the constraint.
M36Choose it when strength drives the design, or when the part sees heat.
B50A470 vs M36: 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
Poisson's Ratio
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
Compressive Strength
Same in both: Bulk Modulus 160 GPa23.2 Msi
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
Specific Heat Capacity
Thermal Expansion (CTE, 20–100 °C)
Latent Heat of Fusion
Max Service Temperature (continuous)
Min Service Temperature
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)
Brazeability / Solderability
Polishability
Castability
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 | B50A470 | M36 |
|---|---|---|
| Default condition | Final Annealed | Annealed |
| Relative cost | $$ Standard | $$ Standard |
| Min. machined wall | — | — |
| Best machined surface | — | — |
Both are offered for Sheet metal. Both take the same 22 finishes: Black Oxide, Cerakote, Chrome Plating, Copper Plating, E-Coating, Electroless Nickel (EN), Epoxy Coating, Gold Plating, Hard Chrome Plating, Hot-Dip Galvanizing, Manganese Phosphate, Nickel Plating and 10 more.
B50A470 vs M36 — frequently asked
Is M36 stronger than B50A470?
Yes. M36 has a typical yield strength of 550 MPa (79.8 ksi) against 305 MPa (44.2 ksi) for B50A470 — about 80% more. Tensile strength is 880 MPa (128 ksi) vs 450 MPa (65.3 ksi).
Which is cheaper, B50A470 or M36?
Both sit in the same relative cost tier ($$, standard); the part price will be decided by machining time, tolerance and quantity rather than by the material.
Which is easier to machine, B50A470 or M36?
B50A470. Its machinability rates good (55/100) against poor (26/100) for M36; for welding the order is B50A470 first (fair, 50/100) then M36 (poor, 15/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in B50A470 and M36 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.