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Steel 1215 vs 1541

Steel · grade comparison

Steel 1215 and 1541 are both steel grades. 1541 is the stronger of the two: yield strength 415 MPa (60.2 ksi) against 250 MPa (36.3 ksi) for 1215, about 66% more; tensile strength follows at 700 MPa (102 ksi) vs 415 MPa (60.2 ksi). In exchange, 1215 is the more ductile: elongation 25% versus 15% for 1541, and 1541 is harder (207 HB vs 121 HB). 1215 conducts electricity better (10.8 % IACS vs 9.5 % IACS). On the shop floor, 1215 machines more easily (excellent vs good) and 1541 welds better (fair vs poor).

1215Choose it when the part is bent, formed or impact-loaded, or when the part is machined in volume.

1541Choose it when strength drives the design, or when it will be welded.

1215 vs 1541: properties

12151541

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

200 GPa29 Msi
205 GPa29.7 Msi

Tensile Strength (Ultimate)

415 MPa60.2 ksi
700 MPa102 ksi

Yield Strength (0.2% offset)

250 MPa36.3 ksi
415 MPa60.2 ksi

Elongation at Break

25%
15%

Reduction in Area

45%
40%

Shear Strength

290 MPa42.1 ksi
425 MPa61.6 ksi

Fatigue Strength (Endurance Limit)

190 MPa27.6 ksi
315 MPa45.7 ksi

Hardness, Brinell

121 HB
207 HB

Hardness, Rockwell B

70 HRB
94 HRB

Charpy V-Notch Impact (RT)

—
25 J18.4 ft·lbf

Same in both: Shear Modulus 80 GPa11.6 Msi · Bulk Modulus 160 GPa23.2 Msi · Poisson's Ratio 0.29

Physical

Density and transition temperatures.

Density

7.87 g/cm³0.28 lb/in³
7.85 g/cm³0.28 lb/in³

Liquidus Temperature

1,510°C2,750 °F
1,495°C2,723 °F

Same in both: Melting Point (Solidus) 1,420°C2,588 °F

Thermal

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

Thermal Conductivity

51.9 W/m·K30 BTU/hr·ft·°F
48 W/m·K27.7 BTU/hr·ft·°F

Specific Heat Capacity

486 J/kg·K0.12 BTU/lb·°F
470 J/kg·K0.11 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

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

Latent Heat of Fusion

247 J/g106 BTU/lb
250 J/g107 BTU/lb

Same in both: Max Service Temperature (continuous) 400°C752 °F · Min Service Temperature -20°C-4 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

10.8 % IACS
9.5 % IACS

Electrical Resistivity

1.6×10⁻⁷ Ω·m6.3 µΩ·in
1.8×10⁻⁷ Ω·m7.09 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

8 / 100
10 / 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

85 / 100
55 / 100

Machinability Rating (AISI 1212 = 100 %)

120%
60%

Weldability

20 / 100
35 / 100

Formability (cold)

35 / 100
40 / 100

Brazeability / Solderability

55 / 100
60 / 100

Polishability

40 / 100
55 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

26 MJ/kg11,178 BTU/lb
25 MJ/kg10,748 BTU/lb

Same in both: Embodied Carbon (primary production) 2 kg CO₂/kg · Embodied Water 45 L/kg5.4 gal/lb · Typical Recycled Content 35%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

53 kN·m/kg
89 kN·m/kg

Specific Stiffness (E / density)

25.4 MN·m/kg
26.1 MN·m/kg

Modulus of Resilience

156 kJ/m³
420 kJ/m³

Thermal Diffusivity

13.6 mm²/s
13 mm²/s

Thermal Shock Resistance Index

9
14

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 scale12151541

Manufacturing and finishing

Capability12151541
Sheet metal—Yes
Default conditionHRHR
Relative cost$ Budget$ Budget
Min. machined wall0.8 mm0.8 mm
Best machined surfaceRa 1.6 µmRa 1.6 µm

Both are offered for CNC machining. 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.

1215 vs 1541 — frequently asked

Is 1541 stronger than 1215?

Yes. 1541 has a typical yield strength of 415 MPa (60.2 ksi) against 250 MPa (36.3 ksi) for 1215 — about 66% more. Tensile strength is 700 MPa (102 ksi) vs 415 MPa (60.2 ksi).

Which is cheaper, 1215 or 1541?

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

Which is easier to machine, 1215 or 1541?

1215. Its machinability rates excellent (85/100) against good (55/100) for 1541; for welding the order is 1541 first (fair, 35/100) then 1215 (poor, 20/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in 1215 and 1541 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.