Steel B1500HS-CR vs B1500HS HS-SZ
Steel · B1500HS temper comparison
B1500HS-CR and B1500HS HS-SZ are two conditions of the same steel grade, B1500HS: CR (cold rolled) versus HS-SZ (hot stamped with tailored soft zone). The chemistry is identical, so every difference below comes from the condition. B1500HS HS-SZ is the stronger of the two: yield strength 500 MPa (72.5 ksi) against 380 MPa (55.1 ksi) for B1500HS-CR, about 32% more; tensile strength follows at 750 MPa (109 ksi) vs 570 MPa (82.7 ksi). In exchange, B1500HS-CR is the more ductile: elongation 17% versus 13% for B1500HS HS-SZ, and B1500HS HS-SZ is harder (238 HB vs 170 HB). B1500HS-CR runs hotter in service (350°C vs 250°C continuous). On the shop floor, B1500HS-CR machines more easily (good vs fair) and B1500HS-CR welds better (very good vs good).
B1500HS-CRChoose it when the part is bent, formed or impact-loaded, or when the part sees heat.
B1500HS HS-SZChoose it when strength drives the design.
B1500HS-CR vs B1500HS HS-SZ: 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
Shear Strength
Fatigue Strength (Endurance Limit)
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 80 GPa11.6 Msi · Bulk Modulus 160 GPa23.2 Msi · Poisson's Ratio 0.3
Physical
Density and transition temperatures.
Same in both: Density 7.85 g/cm³0.28 lb/in³ · Melting Point (Solidus) 1,490°C2,714 °F · Liquidus Temperature 1,520°C2,768 °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) 12.5 µm/m·K6.9 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).
Corrosion Resistance
Same in both: Galvanic Potential (seawater, vs SCE) -0.6 V
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 55 / 100 · Polishability 45 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 32 MJ/kg13,758 BTU/lb · Embodied Carbon (primary production) 2.3 kg CO₂/kg · Embodied Water 45 L/kg5.4 gal/lb · Typical Recycled Content 20%
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.
B1500HS-CR vs B1500HS HS-SZ — frequently asked
Is B1500HS HS-SZ stronger than B1500HS-CR?
Yes. B1500HS HS-SZ has a typical yield strength of 500 MPa (72.5 ksi) against 380 MPa (55.1 ksi) for B1500HS-CR — about 32% more. Tensile strength is 750 MPa (109 ksi) vs 570 MPa (82.7 ksi).
Which condition does FabDigit quote by default, CR or HS-SZ?
CR is the default B1500HS condition in the FabDigit quote flow. 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, B1500HS-CR or B1500HS HS-SZ?
B1500HS-CR. Its machinability rates good (55/100) against fair (35/100) for B1500HS HS-SZ; for welding the order is B1500HS-CR first (very good, 70/100) then B1500HS HS-SZ (good, 60/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in B1500HS-CR and B1500HS HS-SZ 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.