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Steel P355NH +N vs P355NH +N t50-100

Steel · P355NH temper comparison

P355NH +N and P355NH +N t50-100 are two conditions of the same steel grade, P355NH: +N (normalized) versus +N t50-100 (+N). The chemistry is identical, so every difference below comes from the condition. P355NH +N is the stronger of the two: yield strength 390 MPa (56.6 ksi) against 350 MPa (50.8 ksi) for P355NH +N t50-100, about 11% more. P355NH +N is the more ductile: elongation 28% versus 25% for P355NH +N t50-100, and P355NH +N is harder (160 HB vs 150 HB).

P355NH +NChoose it when strength drives the design, or when the part is bent, formed or impact-loaded.

P355NH +N vs P355NH +N t50-100: properties

P355NH +NP355NH +N t50-100

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

545 MPa79 ksi
520 MPa75.4 ksi

Yield Strength (0.2% offset)

390 MPa56.6 ksi
350 MPa50.8 ksi

Elongation at Break

28%
25%

Reduction in Area

60%
55%

Compressive Strength

390 MPa56.6 ksi
350 MPa50.8 ksi

Shear Strength

330 MPa47.9 ksi
310 MPa45 ksi

Fatigue Strength (Endurance Limit)

240 MPa34.8 ksi
225 MPa32.6 ksi

Fracture Toughness (K_IC)

120 MPa·√m109 ksi·√in
110 MPa·√m100 ksi·√in

Charpy V-Notch Impact (RT)

140 J103 ft·lbf
100 J73.8 ft·lbf

Hardness, Brinell

160 HB
150 HB

Hardness, Rockwell B

84 HRB
80 HRB

Hardness, Vickers

168 HV
158 HV

Same in both: Elastic (Young's) Modulus 210 GPa30.5 Msi · Shear Modulus 81 GPa11.7 Msi · Bulk Modulus 165 GPa23.9 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) 1,450°C2,642 °F · Liquidus Temperature 1,510°C2,750 °F

Thermal

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

Same in both: Thermal Conductivity 47 W/m·K27.2 BTU/hr·ft·°F · Specific Heat Capacity 460 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 12 µm/m·K6.7 µin/in·°F · Latent Heat of Fusion 270 J/g116 BTU/lb · Max Service Temperature (continuous) 400°C752 °F · Min Service Temperature -20°C-4 °F

Electrical

Conductivity and insulation.

Same in both: Electrical Conductivity 9 % IACS · Electrical Resistivity 1.9×10⁻⁷ Ω·m7.48 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Same in both: Galvanic Potential (seawater, vs SCE) -0.61 V · Corrosion Resistance 12 / 100

Manufacturability

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

Machinability

55 / 100
58 / 100

Machinability Rating (AISI 1212 = 100 %)

62%
65%

Weldability

88 / 100
85 / 100

Formability (cold)

65 / 100
60 / 100

Same in both: Brazeability / Solderability 50 / 100 · Polishability 40 / 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 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.

2005001,0002,0007.588.5Density (g/cm³)Yield strength (MPa) — log scaleP355NH

P355NH +N vs P355NH +N t50-100 — frequently asked

Is P355NH +N stronger than P355NH +N t50-100?

Yes. P355NH +N has a typical yield strength of 390 MPa (56.6 ksi) against 350 MPa (50.8 ksi) for P355NH +N t50-100 — about 11% more. Tensile strength is 545 MPa (79 ksi) vs 520 MPa (75.4 ksi).

Which condition does FabDigit quote by default, +N or +N t50-100?

+N is the default P355NH 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.

When should I choose P355NH +N over P355NH +N t50-100?

Pick P355NH +N when strength drives the design, or when the part is bent, formed or impact-loaded.

Ready to make it?

Upload a CAD file and FabDigit prices the part in P355NH +N and P355NH +N t50-100 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.