Steel 4Cr5MoSiV vs H13
Steel · grade comparison
Steel 4Cr5MoSiV and H13 are both steel grades. Both yield at about 500 MPa — strength does not separate them. H13 is the more ductile: elongation 25% versus 22% for 4Cr5MoSiV. On the shop floor, 4Cr5MoSiV machines more easily (good vs fair) and 4Cr5MoSiV sits in a lower cost tier (standard, $$) than H13 (high, $$$$).
4Cr5MoSiVChoose it when the part is machined in volume, or when cost is the deciding factor.
H13Choose it when the part is bent, formed or impact-loaded.
4Cr5MoSiV vs H13: 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
Compressive Strength
Shear Strength
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Vickers
Same in both: Elastic (Young's) Modulus 210 GPa30.5 Msi · Shear Modulus 81 GPa11.7 Msi · Poisson's Ratio 0.3 · Reduction in Area 50% · Fatigue Strength (Endurance Limit) 360 MPa52.2 ksi · Hardness, Rockwell B 95 HRB
Physical
Density and transition temperatures.
Melting Point (Solidus)
Same in both: Density 7.8 g/cm³0.28 lb/in³ · Liquidus Temperature 1,480°C2,696 °F
Thermal
How each material carries heat and how hot it can run.
Thermal Expansion (CTE, 20–100 °C)
Min Service Temperature
Same in both: Thermal Conductivity 24.5 W/m·K14.2 BTU/hr·ft·°F · Specific Heat Capacity 460 J/kg·K0.11 BTU/lb·°F · Latent Heat of Fusion 250 J/g107 BTU/lb · Max Service Temperature (continuous) 400°C752 °F
Electrical
Conductivity and insulation.
Same in both: Electrical Conductivity 3.3 % IACS · Electrical Resistivity 5.2×10⁻⁷ Ω·m20.5 µΩ·in
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 %)
Formability (cold)
Castability
Brazeability / Solderability
Same in both: Weldability 35 / 100 · Polishability 78 / 100
Sustainability
Primary-production footprint per kilogram.
Embodied Carbon (primary production)
Embodied Water
Same in both: Embodied Energy (primary production) 34 MJ/kg14,617 BTU/lb · Typical Recycled Content 45%
Common Calculations
Ratios derived from the values above.
Specific Strength (UTS / density)
Modulus of Resilience
Same in both: Specific Stiffness (E / density) 26.9 MN·m/kg · Thermal Diffusivity 6.8 mm²/s · Thermal Shock Resistance Index 8
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 | 4Cr5MoSiV | H13 |
|---|---|---|
| CNC machining | — | Yes |
| 3D printing | — | Yes |
| Default condition | — | Annealed |
| Relative cost | $$ Standard | $$$$ High |
| Min. machined wall | — | 0.8 mm |
| Best machined surface | — | Ra 1.6 µm |
| AlCrN | — | Yes |
| AlTiN | — | Yes |
| Black Oxide | — | Yes |
| CVD Al2O3 | — | Yes |
| CVD TiCN | — | Yes |
| CVD TiN | — | Yes |
| Cerakote | — | Yes |
| Chrome Plating | — | Yes |
| CrN | — | Yes |
| DLC | — | Yes |
| E-Coating | — | Yes |
| HVOF Coating | — | Yes |
| Hot-Dip Galvanizing | — | Yes |
| MoS2 | — | Yes |
| Multilayer CVD | — | Yes |
| Nickel Plating | — | Yes |
| PTFE Coating | — | Yes |
| Painting | — | Yes |
They share 9 finishes: Copper Plating, Electroless Nickel (EN), Epoxy Coating, Gold Plating, Hard Chrome Plating, Manganese Phosphate, Plasma Spray, Silver Plating, Zinc Phosphate.
4Cr5MoSiV vs H13 — frequently asked
What is the difference between 4Cr5MoSiV and H13?
Steel 4Cr5MoSiV and H13 are both steel grades. Both yield at about 500 MPa — strength does not separate them. H13 is the more ductile: elongation 25% versus 22% for 4Cr5MoSiV.
Which is cheaper, 4Cr5MoSiV or H13?
4Cr5MoSiV is the lower-cost material: it sits in the standard tier ($$) while H13 is high ($$$$). 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, 4Cr5MoSiV or H13?
4Cr5MoSiV. Its machinability rates good (55/100) against fair (45/100) for H13.
Ready to make it?
Upload a CAD file and FabDigit prices the part in 4Cr5MoSiV and H13 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.