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Steel X52-N vs X52 PSL1

Steel · X52 temper comparison

X52-N and X52 PSL1 are two conditions of the same steel grade, X52: N (normalized) versus PSL1 (API 5L X52 PSL1). The chemistry is identical, so every difference below comes from the condition. Both yield at about 405 MPa — the mechanical properties are the same, and the difference is in how the stock is processed and what it is certified to (normalized versus API 5L X52 PSL1). X52-N is the more ductile: elongation 29% versus 26% for X52 PSL1, and X52 PSL1 is harder (170 HB vs 160 HB).

X52-NChoose it when the part is bent, formed or impact-loaded.

X52-N vs X52 PSL1: properties

X52-NX52 PSL1

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

525 MPa76.1 ksi
520 MPa75.4 ksi

Yield Strength (0.2% offset)

405 MPa58.7 ksi
400 MPa58 ksi

Elongation at Break

29%
26%

Reduction in Area

65%
58%

Compressive Strength

405 MPa58.7 ksi
400 MPa58 ksi

Shear Strength

325 MPa47.1 ksi
320 MPa46.4 ksi

Fatigue Strength (Endurance Limit)

235 MPa34.1 ksi
230 MPa33.4 ksi

Fracture Toughness (K_IC)

160 MPa·√m146 ksi·√in
100 MPa·√m91 ksi·√in

Charpy V-Notch Impact (RT)

130 J95.9 ft·lbf
60 J44.3 ft·lbf

Hardness, Brinell

160 HB
170 HB

Hardness, Rockwell B

84 HRB
87 HRB

Hardness, Vickers

168 HV
179 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) 1,460°C2,660 °F · Liquidus Temperature 1,510°C2,750 °F

Thermal

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

Min Service Temperature

-45°C-49 °F
-10°C14 °F

Same in both: Thermal Conductivity 48 W/m·K27.7 BTU/hr·ft·°F · Specific Heat Capacity 480 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 250 J/g107 BTU/lb · Max Service Temperature (continuous) 350°C662 °F

Electrical

Conductivity and insulation.

Same in both: Electrical Conductivity 10 % IACS · Electrical Resistivity 1.7×10⁻⁷ Ω·m6.69 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Same in both: Galvanic Potential (seawater, vs SCE) -0.65 V · Corrosion Resistance 12 / 100

Manufacturability

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

Weldability

88 / 100
82 / 100

Formability (cold)

78 / 100
70 / 100

Same in both: Machinability 62 / 100 · Machinability Rating (AISI 1212 = 100 %) 66% · Brazeability / Solderability 55 / 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) 2.1 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.

2005001,0002,0007.588.5Density (g/cm³)Yield strength (MPa) — log scaleX52

X52-N vs X52 PSL1 — frequently asked

What is the difference between X52-N and X52 PSL1?

X52-N and X52 PSL1 are two conditions of the same steel grade, X52: N (normalized) versus PSL1 (API 5L X52 PSL1). The chemistry is identical, so every difference below comes from the condition. Both yield at about 405 MPa — the mechanical properties are the same, and the difference is in how the stock is processed and what it is certified to (normalized versus API 5L X52 PSL1).

Which condition does FabDigit quote by default, N or PSL1?

M is the default X52 condition in the FabDigit quote flow (neither N nor PSL1). 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 welds better, X52-N or X52 PSL1?

X52-N. Its weldability rates excellent (88/100) against very good (82/100) for X52 PSL1.

Ready to make it?

Upload a CAD file and FabDigit prices the part in X52-N and X52 PSL1 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.