Steel 30CrMnTi-CD vs 30CrMnTi-IH
Steel · 30CrMnTi temper comparison
30CrMnTi-CD and 30CrMnTi-IH are two conditions of the same steel grade, 30CrMnTi: CD (cold drawn) versus IH (induction hardened). The chemistry is identical, so every difference below comes from the condition. 30CrMnTi-IH is the stronger of the two: yield strength 880 MPa (128 ksi) against 700 MPa (102 ksi) for 30CrMnTi-CD, about 26% more; tensile strength follows at 1,050 MPa (152 ksi) vs 880 MPa (128 ksi). 30CrMnTi-IH is the more ductile: elongation 12% versus 10% for 30CrMnTi-CD, and 30CrMnTi-IH is harder (550 HB vs 255 HB). 30CrMnTi-CD runs hotter in service (300°C vs 200°C continuous). On the shop floor, 30CrMnTi-CD machines more easily (good vs not recommended) and 30CrMnTi-CD welds better (poor vs not recommended).
30CrMnTi-CDChoose it when the part sees heat, or when the part is machined in volume.
30CrMnTi-IHChoose it when strength drives the design, or when the part is bent, formed or impact-loaded.
30CrMnTi-CD vs 30CrMnTi-IH: 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
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 210 GPa30.5 Msi · Shear Modulus 81 GPa11.7 Msi · Bulk Modulus 160 GPa23.2 Msi · Poisson's Ratio 0.29 · Reduction in Area 40%
Physical
Density and transition temperatures.
Same in both: Density 7.82 g/cm³0.28 lb/in³ · Melting Point (Solidus) 1,425°C2,597 °F · Liquidus Temperature 1,495°C2,723 °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 470 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 11.8 µm/m·K6.6 µin/in·°F · Latent Heat of Fusion 270 J/g116 BTU/lb · Min Service Temperature -40°C-40 °F
Electrical
Conductivity and insulation.
Electrical Conductivity
Electrical Resistivity
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Same in both: Galvanic Potential (seawater, vs SCE) -0.6 V · Corrosion Resistance 12 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Weldability
Formability (cold)
Same in both: Brazeability / Solderability 50 / 100 · Polishability 60 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 29 MJ/kg12,468 BTU/lb · Embodied Carbon (primary production) 2.1 kg CO₂/kg · Embodied Water 45 L/kg5.4 gal/lb · Typical Recycled Content 30%
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.
30CrMnTi-CD vs 30CrMnTi-IH — frequently asked
Is 30CrMnTi-IH stronger than 30CrMnTi-CD?
Yes. 30CrMnTi-IH has a typical yield strength of 880 MPa (128 ksi) against 700 MPa (102 ksi) for 30CrMnTi-CD — about 26% more. Tensile strength is 1,050 MPa (152 ksi) vs 880 MPa (128 ksi).
Which condition does FabDigit quote by default, CD or IH?
A is the default 30CrMnTi condition in the FabDigit quote flow (neither CD nor IH). The other condition is available on request or by drawing note — specify it in the material field or the part notes and the quote is priced for it.
Which is easier to machine, 30CrMnTi-CD or 30CrMnTi-IH?
30CrMnTi-CD. Its machinability rates good (62/100) against not recommended (10/100) for 30CrMnTi-IH; for welding the order is 30CrMnTi-CD first (poor, 28/100) then 30CrMnTi-IH (not recommended, 8/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in 30CrMnTi-CD and 30CrMnTi-IH 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.