Steel Q195 CR-FH vs Q195-HR
Steel · Q195 temper comparison
Q195 CR-FH and Q195-HR are two conditions of the same steel grade, Q195: CR-FH (cold rolled full hard) versus HR (hot rolled). The chemistry is identical, so every difference below comes from the condition. Q195 CR-FH is the stronger of the two: yield strength 520 MPa (75.4 ksi) against 230 MPa (33.4 ksi) for Q195-HR, about 126% more; tensile strength follows at 580 MPa (84.1 ksi) vs 350 MPa (50.8 ksi). In exchange, Q195-HR is the more ductile: elongation 35% versus 3% for Q195 CR-FH, and Q195 CR-FH is harder (170 HB vs 105 HB).
Q195 CR-FHChoose it when strength drives the design.
Q195-HRChoose it when the part is bent, formed or impact-loaded.
Q195 CR-FH vs Q195-HR: 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
Same in both: Elastic (Young's) Modulus 206 GPa29.9 Msi · Shear Modulus 79 GPa11.5 Msi · Bulk Modulus 160 GPa23.2 Msi · Poisson's Ratio 0.3 · Reduction in Area 62% · Fracture Toughness (K_IC) 120 MPa·√m109 ksi·√in
Physical
Density and transition temperatures.
Same in both: Density 7.85 g/cm³0.28 lb/in³ · Melting Point (Solidus) 1,500°C2,732 °F · Liquidus Temperature 1,530°C2,786 °F
Thermal
How each material carries heat and how hot it can run.
Same in both: Thermal Conductivity 52 W/m·K30 BTU/hr·ft·°F · Specific Heat Capacity 475 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 11.9 µm/m·K6.6 µin/in·°F · Latent Heat of Fusion 247 J/g106 BTU/lb · Max Service Temperature (continuous) 300°C572 °F · Min Service Temperature -20°C-4 °F
Electrical
Conductivity and insulation.
Same in both: Electrical Conductivity 10.5 % IACS · Electrical Resistivity 1.6×10⁻⁷ Ω·m6.3 µΩ·in
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Corrosion Resistance
Same in both: Galvanic Potential (seawater, vs SCE) -0.65 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 85 / 100 · Polishability 45 / 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 kg CO₂/kg · Embodied Water 45 L/kg5.4 gal/lb · Typical Recycled Content 22%
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.
Q195 CR-FH vs Q195-HR — frequently asked
Is Q195 CR-FH stronger than Q195-HR?
Yes. Q195 CR-FH has a typical yield strength of 520 MPa (75.4 ksi) against 230 MPa (33.4 ksi) for Q195-HR — about 126% more. Tensile strength is 580 MPa (84.1 ksi) vs 350 MPa (50.8 ksi).
Which condition does FabDigit quote by default, CR-FH or HR?
CR is the default Q195 condition in the FabDigit quote flow (neither CR-FH nor HR). 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, Q195 CR-FH or Q195-HR?
Q195 CR-FH, by a small margin. Both rate good for machinability — 66/100 against 58/100 for Q195-HR; for welding the order is Q195-HR first (excellent, 96/100) then Q195 CR-FH (excellent, 90/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in Q195 CR-FH and Q195-HR 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.