Steel 22MnB5-HR vs 22MnB5 PHS-SZ
Steel · 22MnB5 temper comparison
22MnB5-HR and 22MnB5 PHS-SZ are two conditions of the same steel grade, 22MnB5: HR (hot rolled) versus PHS-SZ (press hardened with tailored soft zone). The chemistry is identical, so every difference below comes from the condition. 22MnB5 PHS-SZ is the stronger of the two: yield strength 450 MPa (65.3 ksi) against 400 MPa (58 ksi) for 22MnB5-HR, about 13% more; tensile strength follows at 650 MPa (94.3 ksi) vs 600 MPa (87 ksi). In exchange, 22MnB5-HR is the more ductile: elongation 20% versus 14% for 22MnB5 PHS-SZ, and 22MnB5 PHS-SZ is harder (209 HB vs 175 HB). 22MnB5 PHS-SZ runs hotter in service (300°C vs 250°C continuous). On the shop floor, 22MnB5-HR machines more easily (good vs fair) and 22MnB5-HR welds better (65 vs 55 out of 100).
22MnB5-HRChoose it when the part is bent, formed or impact-loaded, or when the part is machined in volume.
22MnB5 PHS-SZChoose it when strength drives the design, or when the part sees heat.
22MnB5-HR vs 22MnB5 PHS-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
Reduction in Area
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 81 GPa11.7 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) 1,465°C2,669 °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 480 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 260 J/g112 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 55 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 25 MJ/kg10,748 BTU/lb · Embodied Carbon (primary production) 2.1 kg CO₂/kg · Embodied Water 40 L/kg4.8 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.
22MnB5-HR vs 22MnB5 PHS-SZ — frequently asked
Is 22MnB5 PHS-SZ stronger than 22MnB5-HR?
Yes. 22MnB5 PHS-SZ has a typical yield strength of 450 MPa (65.3 ksi) against 400 MPa (58 ksi) for 22MnB5-HR — about 13% more. Tensile strength is 650 MPa (94.3 ksi) vs 600 MPa (87 ksi).
Which condition does FabDigit quote by default, HR or PHS-SZ?
CR is the default 22MnB5 condition in the FabDigit quote flow (neither HR nor PHS-SZ). 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, 22MnB5-HR or 22MnB5 PHS-SZ?
22MnB5-HR. Its machinability rates good (55/100) against fair (40/100) for 22MnB5 PHS-SZ; for welding the order is 22MnB5-HR first (good, 65/100) then 22MnB5 PHS-SZ (good, 55/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in 22MnB5-HR and 22MnB5 PHS-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.