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Steel 1522 vs EN353

Steel · grade comparison

Steel 1522 and EN353 are both steel grades, both case hardening steel. EN353 is the stronger of the two: yield strength 480 MPa (69.6 ksi) against 305 MPa (44.2 ksi) for 1522, about 57% more; tensile strength follows at 760 MPa (110 ksi) vs 500 MPa (72.5 ksi). In exchange, 1522 is the more ductile: elongation 20% versus 18% for EN353, and EN353 is harder (229 HB vs 143 HB). 1522 runs hotter in service (400°C vs 200°C continuous) and 1522 conducts heat better (49 W/m·K vs 44 W/m·K). On the shop floor, 1522 welds better (very good vs fair).

1522Choose it when the part is bent, formed or impact-loaded, or when the part sees heat.

EN353Choose it when strength drives the design.

1522 vs EN353: properties

1522EN353

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

205 GPa29.7 Msi
210 GPa30.5 Msi

Tensile Strength (Ultimate)

500 MPa72.5 ksi
760 MPa110 ksi

Yield Strength (0.2% offset)

305 MPa44.2 ksi
480 MPa69.6 ksi

Elongation at Break

20%
18%

Reduction in Area

42%
50%

Compressive Strength

305 MPa44.2 ksi
490 MPa71.1 ksi

Shear Strength

340 MPa49.3 ksi
460 MPa66.7 ksi

Fatigue Strength (Endurance Limit)

240 MPa34.8 ksi
350 MPa50.8 ksi

Hardness, Brinell

143 HB
229 HB

Hardness, Rockwell B

78 HRB
98 HRB

Fracture Toughness (K_IC)

—
75 MPa·√m68.3 ksi·√in

Hardness, Rockwell C

—
20 HRC

Hardness, Vickers

—
240 HV

Same in both: Shear Modulus 80 GPa11.6 Msi · Bulk Modulus 160 GPa23.2 Msi · Poisson's Ratio 0.29 · Charpy V-Notch Impact (RT) 45 J33.2 ft·lbf

Physical

Density and transition temperatures.

Melting Point (Solidus)

1,460°C2,660 °F
1,420°C2,588 °F

Liquidus Temperature

1,515°C2,759 °F
1,495°C2,723 °F

Same in both: Density 7.85 g/cm³0.28 lb/in³

Thermal

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

Thermal Conductivity

49 W/m·K28.3 BTU/hr·ft·°F
44 W/m·K25.4 BTU/hr·ft·°F

Thermal Expansion (CTE, 20–100 °C)

11.7 µm/m·K6.5 µin/in·°F
11.8 µm/m·K6.6 µin/in·°F

Latent Heat of Fusion

270 J/g116 BTU/lb
250 J/g107 BTU/lb

Max Service Temperature (continuous)

400°C752 °F
200°C392 °F

Min Service Temperature

-20°C-4 °F
-40°C-40 °F

Same in both: Specific Heat Capacity 470 J/kg·K0.11 BTU/lb·°F

Electrical

Conductivity and insulation.

Electrical Conductivity

10 % IACS
7.8 % IACS

Electrical Resistivity

1.7×10⁻⁷ Ω·m6.69 µΩ·in
2.2×10⁻⁷ Ω·m8.66 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

10 / 100
12 / 100

Same in both: Galvanic Potential (seawater, vs SCE) -0.61 V

Manufacturability

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

Machinability

58 / 100
55 / 100

Machinability Rating (AISI 1212 = 100 %)

65%
58%

Weldability

75 / 100
42 / 100

Formability (cold)

60 / 100
45 / 100

Castability

40 / 100
30 / 100

Brazeability / Solderability

70 / 100
55 / 100

Polishability

55 / 100
60 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

25 MJ/kg10,748 BTU/lb
30 MJ/kg12,898 BTU/lb

Embodied Carbon (primary production)

1.9 kg CO₂/kg
2.1 kg CO₂/kg

Embodied Water

35 L/kg4.2 gal/lb
60 L/kg7.2 gal/lb

Typical Recycled Content

30%
25%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

64 kN·m/kg
97 kN·m/kg

Specific Stiffness (E / density)

26.1 MN·m/kg
26.8 MN·m/kg

Modulus of Resilience

227 kJ/m³
549 kJ/m³

Thermal Diffusivity

13.3 mm²/s
11.9 mm²/s

Thermal Shock Resistance Index

10
13

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 scaleEN3531522

Manufacturing and finishing

Capability1522EN353
Default conditionHRHR
Relative cost$$ Standard$$ Standard
Min. machined wall0.8 mm0.8 mm
Best machined surfaceRa 1.6 µmRa 1.6 µm

Both are offered for CNC machining and Sheet metal. Both take the same 38 finishes: AlCrN, AlTiN, Black Oxide, CVD Al2O3, CVD TiCN, CVD TiN, Cerakote, Chrome Plating, Copper Plating, CrN, DLC, E-Coating and 26 more.

1522 vs EN353 — frequently asked

Is EN353 stronger than 1522?

Yes. EN353 has a typical yield strength of 480 MPa (69.6 ksi) against 305 MPa (44.2 ksi) for 1522 — about 57% more. Tensile strength is 760 MPa (110 ksi) vs 500 MPa (72.5 ksi).

Which is cheaper, 1522 or EN353?

Both sit in the same relative cost tier ($$, standard); the part price will be decided by machining time, tolerance and quantity rather than by the material.

Which welds better, 1522 or EN353?

1522. Its weldability rates very good (75/100) against fair (42/100) for EN353.

Ready to make it?

Upload a CAD file and FabDigit prices the part in 1522 and EN353 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.