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Steel 34MnB5 vs S460NL

Steel · grade comparison

Steel 34MnB5 and S460NL are both steel grades. S460NL is the stronger of the two: yield strength 490 MPa (71.1 ksi) against 420 MPa (60.9 ksi) for 34MnB5, about 17% more. S460NL is the more ductile: elongation 22% versus 14% for 34MnB5. S460NL conducts electricity better (9 % IACS vs 8 % IACS). On the shop floor, S460NL welds better (excellent vs good) and S460NL sits in a lower cost tier (budget, $) than 34MnB5 (standard, $$).

S460NLChoose it when strength drives the design, or when the part is bent, formed or impact-loaded.

34MnB5 vs S460NL: properties

34MnB5S460NL

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Shear Modulus

80 GPa11.6 Msi
81 GPa11.7 Msi

Bulk Modulus

160 GPa23.2 Msi
166 GPa24.1 Msi

Poisson's Ratio

0.29
0.3

Yield Strength (0.2% offset)

420 MPa60.9 ksi
490 MPa71.1 ksi

Elongation at Break

14%
22%

Reduction in Area

45%
55%

Shear Strength

400 MPa58 ksi
380 MPa55.1 ksi

Fatigue Strength (Endurance Limit)

280 MPa40.6 ksi
270 MPa39.2 ksi

Fracture Toughness (K_IC)

55 MPa·√m50.1 ksi·√in
130 MPa·√m118 ksi·√in

Charpy V-Notch Impact (RT)

40 J29.5 ft·lbf
130 J95.9 ft·lbf

Hardness, Brinell

185 HB
190 HB

Hardness, Rockwell B

89 HRB
92 HRB

Hardness, Vickers

195 HV
200 HV

Compressive Strength

—
490 MPa71.1 ksi

Hardness, Rockwell C

—
13 HRC

Same in both: Elastic (Young's) Modulus 210 GPa30.5 Msi · Tensile Strength (Ultimate) 620 MPa89.9 ksi

Physical

Density and transition temperatures.

Melting Point (Solidus)

1,420°C2,588 °F
1,440°C2,624 °F

Liquidus Temperature

1,495°C2,723 °F
1,510°C2,750 °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

44 W/m·K25.4 BTU/hr·ft·°F
45 W/m·K26 BTU/hr·ft·°F

Thermal Expansion (CTE, 20–100 °C)

12.5 µm/m·K6.9 µin/in·°F
12 µm/m·K6.7 µin/in·°F

Latent Heat of Fusion

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

Min Service Temperature

-40°C-40 °F
-50°C-58 °F

Same in both: Specific Heat Capacity 470 J/kg·K0.11 BTU/lb·°F · Max Service Temperature (continuous) 400°C752 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

8 % IACS
9 % IACS

Electrical Resistivity

2.2×10⁻⁷ Ω·m8.66 µΩ·in
1.9×10⁻⁷ Ω·m7.48 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.6 V
-0.62 V

Corrosion Resistance

11 / 100
12 / 100

Manufacturability

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

Machinability

55 / 100
50 / 100

Machinability Rating (AISI 1212 = 100 %)

60%
55%

Weldability

55 / 100
85 / 100

Brazeability / Solderability

45 / 100
55 / 100

Polishability

55 / 100
45 / 100

Castability

—
0 / 100

Same in both: Formability (cold) 60 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Water

40 L/kg4.8 gal/lb
50 L/kg6 gal/lb

Typical Recycled Content

25%
30%

Same in both: Embodied Energy (primary production) 25 MJ/kg10,748 BTU/lb · Embodied Carbon (primary production) 2 kg CO₂/kg

Common Calculations

Ratios derived from the values above.

Modulus of Resilience

420 kJ/m³
572 kJ/m³

Thermal Diffusivity

11.9 mm²/s
12.2 mm²/s

Thermal Shock Resistance Index

10
11

Same in both: Specific Strength (UTS / density) 79 kN·m/kg · Specific Stiffness (E / density) 26.8 MN·m/kg

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 scale34MnB5S460NL

Manufacturing and finishing

Capability34MnB5S460NL
Sheet metalYes—
Default conditionCR—
Relative cost$$ Standard$ Budget
Min. machined wall——
Best machined surface——
Black OxideYes—
CerakoteYes—
Chrome PlatingYes—
E-CoatingYes—
Hot-Dip GalvanizingYes—
Nickel PlatingYes—
PTFE CoatingYes—
PaintingYes—
Powder CoatingYes—
Tin PlatingYes—
Zinc PlatingYes—
Zinc-Flake (Dip-Spin) CoatingYes—
Zinc-Nickel PlatingYes—

They share 9 finishes: Copper Plating, Electroless Nickel (EN), Epoxy Coating, Gold Plating, Hard Chrome Plating, Manganese Phosphate, Plasma Spray, Silver Plating, Zinc Phosphate.

34MnB5 vs S460NL — frequently asked

Is S460NL stronger than 34MnB5?

Yes. S460NL has a typical yield strength of 490 MPa (71.1 ksi) against 420 MPa (60.9 ksi) for 34MnB5 — about 17% more. Tensile strength is 620 MPa (89.9 ksi) vs 620 MPa (89.9 ksi).

Which is cheaper, 34MnB5 or S460NL?

S460NL is the lower-cost material: it sits in the budget tier ($) while 34MnB5 is standard ($$). Part price depends far more on geometry, tolerance and quantity than on raw stock — upload a CAD file for a live quote.

Which is easier to machine, 34MnB5 or S460NL?

34MnB5. Its machinability rates good (55/100) against fair (50/100) for S460NL; for welding the order is S460NL first (excellent, 85/100) then 34MnB5 (good, 55/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in 34MnB5 and S460NL 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.