Steel A220 45008 vs A220 M5003
Steel · grade comparison
Steel A220 45008 and A220 M5003 are both steel grades. A220 M5003 is the stronger of the two: yield strength 380 MPa (55.1 ksi) against 330 MPa (47.9 ksi) for A220 45008, about 15% more; tensile strength follows at 550 MPa (79.8 ksi) vs 470 MPa (68.2 ksi). In exchange, A220 45008 is the more ductile: elongation 10% versus 4% for A220 M5003, and A220 M5003 is harder (197 HB vs 175 HB). A220 M5003 conducts electricity better (5.7 % IACS vs 4.7 % IACS).
A220 45008Choose it when the part is bent, formed or impact-loaded.
A220 M5003Choose it when strength drives the design.
A220 45008 vs A220 M5003: 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
Compressive Strength
Shear Strength
Fatigue Strength (Endurance Limit)
Fracture Toughness (K_IC)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Rockwell B
Hardness, Vickers
Same in both: Elastic (Young's) Modulus 172 GPa24.9 Msi · Shear Modulus 68 GPa9.9 Msi · Bulk Modulus 120 GPa17.4 Msi · Poisson's Ratio 0.26
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
Min Service Temperature
Same in both: Specific Heat Capacity 500 J/kg·K0.12 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) 400°C752 °F
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
Formability (cold)
Castability
Same in both: Machinability Rating (AISI 1212 = 100 %) 80% · Weldability 25 / 100 · Brazeability / Solderability 50 / 100 · Polishability 50 / 100
Sustainability
Primary-production footprint per kilogram.
Embodied Carbon (primary production)
Same in both: Embodied Energy (primary production) 20 MJ/kg8,598 BTU/lb · Embodied Water 25 L/kg3 gal/lb · Typical Recycled Content 90%
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 | A220 45008 | A220 M5003 |
|---|---|---|
| Default condition | — | — |
| Relative cost | $$ Standard | $$ 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.
A220 45008 vs A220 M5003 — frequently asked
Is A220 M5003 stronger than A220 45008?
Yes. A220 M5003 has a typical yield strength of 380 MPa (55.1 ksi) against 330 MPa (47.9 ksi) for A220 45008 — about 15% more. Tensile strength is 550 MPa (79.8 ksi) vs 470 MPa (68.2 ksi).
Which is cheaper, A220 45008 or A220 M5003?
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, A220 45008 or A220 M5003?
A220 M5003, by a small margin. Both rate good for machinability — 65/100 against 58/100 for A220 45008.
Ready to make it?
Upload a CAD file and FabDigit prices the part in A220 45008 and A220 M5003 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.