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Steel 13MoCrNi42-16-14 vs 34MnB5

Steel · grade comparison

Steel 13MoCrNi42-16-14 and 34MnB5 are both steel grades. 13MoCrNi42-16-14 is the stronger of the two: yield strength 560 MPa (81.2 ksi) against 420 MPa (60.9 ksi) for 34MnB5, about 33% more; tensile strength follows at 860 MPa (125 ksi) vs 620 MPa (89.9 ksi). 13MoCrNi42-16-14 is the more ductile: elongation 18% versus 14% for 34MnB5, and 13MoCrNi42-16-14 is harder (220 HB vs 185 HB). 34MnB5 runs hotter in service (400°C vs 200°C continuous) and 34MnB5 conducts heat better (44 W/m·K vs 23 W/m·K). On the shop floor, 34MnB5 machines more easily (good vs poor), 34MnB5 welds better (good vs poor), and 34MnB5 sits in a lower cost tier (standard, $$) than 13MoCrNi42-16-14 (high, $$$$).

13MoCrNi42-16-14Choose it when strength drives the design, or when the part is bent, formed or impact-loaded.

34MnB5Choose it when the part sees heat, or when the part is machined in volume.

13MoCrNi42-16-14 vs 34MnB5: properties

13MoCrNi42-16-1434MnB5

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

201 GPa29.2 Msi
210 GPa30.5 Msi

Shear Modulus

78 GPa11.3 Msi
80 GPa11.6 Msi

Tensile Strength (Ultimate)

860 MPa125 ksi
620 MPa89.9 ksi

Yield Strength (0.2% offset)

560 MPa81.2 ksi
420 MPa60.9 ksi

Elongation at Break

18%
14%

Compressive Strength

600 MPa87 ksi
—

Shear Strength

520 MPa75.4 ksi
400 MPa58 ksi

Fatigue Strength (Endurance Limit)

390 MPa56.6 ksi
280 MPa40.6 ksi

Charpy V-Notch Impact (RT)

60 J44.3 ft·lbf
40 J29.5 ft·lbf

Hardness, Brinell

220 HB
185 HB

Hardness, Rockwell B

97 HRB
89 HRB

Hardness, Vickers

232 HV
195 HV

Fracture Toughness (K_IC)

—
55 MPa·√m50.1 ksi·√in

Same in both: Bulk Modulus 160 GPa23.2 Msi · Poisson's Ratio 0.29 · Reduction in Area 45%

Physical

Density and transition temperatures.

Density

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

Melting Point (Solidus)

1,400°C2,552 °F
1,420°C2,588 °F

Liquidus Temperature

1,460°C2,660 °F
1,495°C2,723 °F

Thermal

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

Thermal Conductivity

23 W/m·K13.3 BTU/hr·ft·°F
44 W/m·K25.4 BTU/hr·ft·°F

Specific Heat Capacity

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

Thermal Expansion (CTE, 20–100 °C)

11.3 µm/m·K6.3 µin/in·°F
12.5 µm/m·K6.9 µin/in·°F

Latent Heat of Fusion

265 J/g114 BTU/lb
250 J/g107 BTU/lb

Max Service Temperature (continuous)

200°C392 °F
400°C752 °F

Min Service Temperature

-60°C-76 °F
-40°C-40 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

2.9 % IACS
8 % IACS

Electrical Resistivity

6×10⁻⁷ Ω·m23.6 µΩ·in
2.2×10⁻⁷ Ω·m8.66 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

16 / 100
11 / 100

Same in both: Galvanic Potential (seawater, vs SCE) -0.6 V

Manufacturability

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

Machinability

32 / 100
55 / 100

Machinability Rating (AISI 1212 = 100 %)

30%
60%

Weldability

15 / 100
55 / 100

Formability (cold)

20 / 100
60 / 100

Castability

25 / 100
—

Brazeability / Solderability

30 / 100
45 / 100

Polishability

85 / 100
55 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

48 MJ/kg20,636 BTU/lb
25 MJ/kg10,748 BTU/lb

Embodied Carbon (primary production)

3.6 kg CO₂/kg
2 kg CO₂/kg

Embodied Water

70 L/kg8.4 gal/lb
40 L/kg4.8 gal/lb

Typical Recycled Content

15%
25%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

111 kN·m/kg
79 kN·m/kg

Specific Stiffness (E / density)

25.8 MN·m/kg
26.8 MN·m/kg

Modulus of Resilience

780 kJ/m³
420 kJ/m³

Thermal Diffusivity

6.4 mm²/s
11.9 mm²/s

Thermal Shock Resistance Index

9
10

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 scale34MnB513MoCrNi42-16-14

Manufacturing and finishing

Capability13MoCrNi42-16-1434MnB5
Sheet metal—Yes
Default condition—CR
Relative cost$$$$ High$$ Standard
Min. machined wall——
Best machined surface——
Black Oxide—Yes
Cerakote—Yes
Chrome Plating—Yes
E-Coating—Yes
Hot-Dip Galvanizing—Yes
Nickel Plating—Yes
PTFE Coating—Yes
Painting—Yes
Powder Coating—Yes
Tin Plating—Yes
Zinc Plating—Yes
Zinc-Flake (Dip-Spin) Coating—Yes
Zinc-Nickel Plating—Yes

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

13MoCrNi42-16-14 vs 34MnB5 — frequently asked

Is 13MoCrNi42-16-14 stronger than 34MnB5?

Yes. 13MoCrNi42-16-14 has a typical yield strength of 560 MPa (81.2 ksi) against 420 MPa (60.9 ksi) for 34MnB5 — about 33% more. Tensile strength is 860 MPa (125 ksi) vs 620 MPa (89.9 ksi).

Which is cheaper, 13MoCrNi42-16-14 or 34MnB5?

34MnB5 is the lower-cost material: it sits in the standard tier ($$) while 13MoCrNi42-16-14 is high ($$$$). 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, 13MoCrNi42-16-14 or 34MnB5?

34MnB5. Its machinability rates good (55/100) against poor (32/100) for 13MoCrNi42-16-14; for welding the order is 34MnB5 first (good, 55/100) then 13MoCrNi42-16-14 (poor, 15/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in 13MoCrNi42-16-14 and 34MnB5 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.