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Steel En25 Normalized vs En25-T

Steel · En25 temper comparison

En25 Normalized and En25-T are two conditions of the same steel grade, En25: Normalized versus T (Q&T Condition T). The chemistry is identical, so every difference below comes from the condition. En25-T is the stronger of the two: yield strength 700 MPa (102 ksi) against 570 MPa (82.7 ksi) for En25 Normalized, about 23% more; tensile strength follows at 930 MPa (135 ksi) vs 850 MPa (123 ksi). In exchange, En25 Normalized is the more ductile: elongation 18% versus 15% for En25-T, and En25-T is harder (275 HB vs 250 HB).

En25 NormalizedChoose it when the part is bent, formed or impact-loaded.

En25-TChoose it when strength drives the design.

En25 Normalized vs En25-T: properties

En25 NormalizedEn25-T

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

850 MPa123 ksi
930 MPa135 ksi

Yield Strength (0.2% offset)

570 MPa82.7 ksi
700 MPa102 ksi

Elongation at Break

18%
15%

Reduction in Area

48%
50%

Compressive Strength

580 MPa84.1 ksi
710 MPa103 ksi

Shear Strength

510 MPa74 ksi
560 MPa81.2 ksi

Fatigue Strength (Endurance Limit)

400 MPa58 ksi
450 MPa65.3 ksi

Fracture Toughness (K_IC)

95 MPa·√m86.5 ksi·√in
110 MPa·√m100 ksi·√in

Charpy V-Notch Impact (RT)

35 J25.8 ft·lbf
55 J40.6 ft·lbf

Hardness, Brinell

250 HB
275 HB

Hardness, Rockwell C

24 HRC
28 HRC

Hardness, Vickers

262 HV
290 HV

Same in both: Elastic (Young's) Modulus 207 GPa30 Msi · Shear Modulus 80 GPa11.6 Msi · Bulk Modulus 160 GPa23.2 Msi · Poisson's Ratio 0.29

Physical

Density and transition temperatures.

Same in both: Density 7.85 g/cm³0.28 lb/in³ · Melting Point (Solidus) 1,420°C2,588 °F · Liquidus Temperature 1,470°C2,678 °F

Thermal

How each material carries heat and how hot it can run.

Thermal Conductivity

44 W/m·K25.4 BTU/hr·ft·°F
42 W/m·K24.3 BTU/hr·ft·°F

Same in both: Specific Heat Capacity 475 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 12.3 µm/m·K6.8 µin/in·°F · Latent Heat of Fusion 250 J/g107 BTU/lb · Max Service Temperature (continuous) 400°C752 °F · Min Service Temperature -60°C-76 °F

Electrical

Conductivity and insulation.

Same in both: Electrical Conductivity 7.2 % IACS · Electrical Resistivity 2.4×10⁻⁷ Ω·m9.45 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Same in both: Galvanic Potential (seawater, vs SCE) -0.61 V · Corrosion Resistance 14 / 100

Manufacturability

FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.

Machinability

52 / 100
45 / 100

Machinability Rating (AISI 1212 = 100 %)

52%
45%

Weldability

30 / 100
25 / 100

Formability (cold)

25 / 100
20 / 100

Same in both: Brazeability / Solderability 45 / 100 · Polishability 70 / 100

Sustainability

Primary-production footprint per kilogram.

Same in both: Embodied Energy (primary production) 34 MJ/kg14,617 BTU/lb · Embodied Carbon (primary production) 2.4 kg CO₂/kg · Embodied Water 60 L/kg7.2 gal/lb · Typical Recycled Content 35%

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.

2005001,0002,0007.588.5Density (g/cm³)Yield strength (MPa) — log scaleEn25

En25 Normalized vs En25-T — frequently asked

Is En25-T stronger than En25 Normalized?

Yes. En25-T has a typical yield strength of 700 MPa (102 ksi) against 570 MPa (82.7 ksi) for En25 Normalized — about 23% more. Tensile strength is 930 MPa (135 ksi) vs 850 MPa (123 ksi).

Which condition does FabDigit quote by default, Normalized or T?

T is the default En25 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, En25 Normalized or En25-T?

En25 Normalized, by a small margin. Both rate fair for machinability — 52/100 against 45/100 for En25-T; for welding the order is En25 Normalized first (poor, 30/100) then En25-T (poor, 25/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in En25 Normalized and En25-T 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.