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Steel 22MnB5 vs TRIP690

Steel · grade comparison

Steel 22MnB5 and TRIP690 are both steel grades. TRIP690 is the stronger of the two: yield strength 450 MPa (65.3 ksi) against 380 MPa (55.1 ksi) for 22MnB5, about 18% more; tensile strength follows at 720 MPa (104 ksi) vs 560 MPa (81.2 ksi). TRIP690 is the more ductile: elongation 26% versus 22% for 22MnB5, and TRIP690 is harder (210 HB vs 160 HB). 22MnB5 runs hotter in service (250°C vs 200°C continuous) and TRIP690 conducts heat better (45 W/m·K vs 32 W/m·K). On the shop floor, 22MnB5 machines more easily (good vs fair) and TRIP690 sits in a lower cost tier (budget, $) than 22MnB5 (standard, $$).

22MnB5Choose it when the part sees heat, or when the part is machined in volume.

TRIP690Choose it when strength drives the design, or when the part is bent, formed or impact-loaded.

22MnB5 vs TRIP690: properties

22MnB5TRIP690

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

210 GPa30.5 Msi
205 GPa29.7 Msi

Shear Modulus

81 GPa11.7 Msi
80 GPa11.6 Msi

Bulk Modulus

160 GPa23.2 Msi
165 GPa23.9 Msi

Tensile Strength (Ultimate)

560 MPa81.2 ksi
720 MPa104 ksi

Yield Strength (0.2% offset)

380 MPa55.1 ksi
450 MPa65.3 ksi

Elongation at Break

22%
26%

Shear Strength

380 MPa55.1 ksi
470 MPa68.2 ksi

Fatigue Strength (Endurance Limit)

250 MPa36.3 ksi
340 MPa49.3 ksi

Charpy V-Notch Impact (RT)

60 J44.3 ft·lbf
40 J29.5 ft·lbf

Hardness, Brinell

160 HB
210 HB

Hardness, Rockwell B

85 HRB
96 HRB

Hardness, Vickers

170 HV
220 HV

Same in both: Poisson's Ratio 0.3 · Reduction in Area 55%

Physical

Density and transition temperatures.

Density

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

Melting Point (Solidus)

1,465°C2,669 °F
1,425°C2,597 °F

Liquidus Temperature

1,520°C2,768 °F
1,500°C2,732 °F

Thermal

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

Thermal Conductivity

32 W/m·K18.5 BTU/hr·ft·°F
45 W/m·K26 BTU/hr·ft·°F

Specific Heat Capacity

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

Latent Heat of Fusion

260 J/g112 BTU/lb
250 J/g107 BTU/lb

Max Service Temperature (continuous)

250°C482 °F
200°C392 °F

Same in both: Thermal Expansion (CTE, 20–100 °C) 12.5 µm/m·K6.9 µin/in·°F · Min Service Temperature -40°C-40 °F

Electrical

Conductivity and insulation.

Same in both: Electrical Conductivity 8 % IACS · Electrical Resistivity 2.2×10⁻⁷ Ω·m8.66 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Same in both: Galvanic Potential (seawater, vs SCE) -0.6 V · Corrosion Resistance 12 / 100

Manufacturability

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

Machinability

55 / 100
35 / 100

Machinability Rating (AISI 1212 = 100 %)

60%
45%

Weldability

65 / 100
62 / 100

Formability (cold)

60 / 100
80 / 100

Brazeability / Solderability

50 / 100
55 / 100

Polishability

55 / 100
45 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

25 MJ/kg10,748 BTU/lb
31 MJ/kg13,328 BTU/lb

Embodied Carbon (primary production)

2.1 kg CO₂/kg
2.4 kg CO₂/kg

Embodied Water

40 L/kg4.8 gal/lb
55 L/kg6.6 gal/lb

Typical Recycled Content

20%
25%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

71 kN·m/kg
92 kN·m/kg

Specific Stiffness (E / density)

26.8 MN·m/kg
26.3 MN·m/kg

Modulus of Resilience

344 kJ/m³
494 kJ/m³

Thermal Diffusivity

8.5 mm²/s
12.3 mm²/s

Thermal Shock Resistance Index

7
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 scale22MnB5TRIP690

Manufacturing and finishing

Capability22MnB5TRIP690
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.

22MnB5 vs TRIP690 — frequently asked

Is TRIP690 stronger than 22MnB5?

Yes. TRIP690 has a typical yield strength of 450 MPa (65.3 ksi) against 380 MPa (55.1 ksi) for 22MnB5 — about 18% more. Tensile strength is 720 MPa (104 ksi) vs 560 MPa (81.2 ksi).

Which is cheaper, 22MnB5 or TRIP690?

TRIP690 is the lower-cost material: it sits in the budget tier ($) while 22MnB5 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, 22MnB5 or TRIP690?

22MnB5. Its machinability rates good (55/100) against fair (35/100) for TRIP690.

Ready to make it?

Upload a CAD file and FabDigit prices the part in 22MnB5 and TRIP690 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.