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Steel DP450 vs MS1700

Steel · grade comparison

Steel DP450 and MS1700 are both steel grades. MS1700 is the stronger of the two: yield strength 1,450 MPa (210 ksi) against 300 MPa (43.5 ksi) for DP450, about 4.8 times as much; tensile strength follows at 1,780 MPa (258 ksi) vs 500 MPa (72.5 ksi). In exchange, DP450 is the more ductile: elongation 29% versus 4% for MS1700, and MS1700 is harder (520 HV vs 150 HV). DP450 conducts heat better (48 W/m·K vs 32 W/m·K). On the shop floor, DP450 machines more easily (good vs poor), DP450 welds better (very good vs good), and DP450 sits in a lower cost tier (budget, $) than MS1700 (standard, $$).

DP450Choose it when the part is bent, formed or impact-loaded, or when the part is machined in volume.

MS1700Choose it when strength drives the design.

DP450 vs MS1700: properties

DP450MS1700

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Bulk Modulus

165 GPa23.9 Msi
160 GPa23.2 Msi

Tensile Strength (Ultimate)

500 MPa72.5 ksi
1,780 MPa258 ksi

Yield Strength (0.2% offset)

300 MPa43.5 ksi
1,450 MPa210 ksi

Elongation at Break

29%
4%

Shear Strength

330 MPa47.9 ksi
1,050 MPa152 ksi

Fatigue Strength (Endurance Limit)

250 MPa36.3 ksi
700 MPa102 ksi

Hardness, Brinell

143 HB
—

Hardness, Rockwell B

80 HRB
—

Hardness, Vickers

150 HV
520 HV

Compressive Strength

—
1,450 MPa210 ksi

Fracture Toughness (K_IC)

—
50 MPa·√m45.5 ksi·√in

Hardness, Rockwell C

—
50 HRC

Same in both: Elastic (Young's) Modulus 210 GPa30.5 Msi · Shear Modulus 80 GPa11.6 Msi · Poisson's Ratio 0.3

Physical

Density and transition temperatures.

Melting Point (Solidus)

1,480°C2,696 °F
1,420°C2,588 °F

Liquidus Temperature

1,520°C2,768 °F
1,500°C2,732 °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

48 W/m·K27.7 BTU/hr·ft·°F
32 W/m·K18.5 BTU/hr·ft·°F

Thermal Expansion (CTE, 20–100 °C)

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

Same in both: Specific Heat Capacity 470 J/kg·K0.11 BTU/lb·°F · Latent Heat of Fusion 270 J/g116 BTU/lb · Max Service Temperature (continuous) 200°C392 °F · Min Service Temperature -40°C-40 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

9.1 % IACS
8 % IACS

Electrical Resistivity

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

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.65 V
-0.6 V

Same in both: Corrosion Resistance 12 / 100

Manufacturability

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

Machinability

55 / 100
20 / 100

Machinability Rating (AISI 1212 = 100 %)

65%
20%

Weldability

82 / 100
55 / 100

Formability (cold)

75 / 100
12 / 100

Brazeability / Solderability

60 / 100
30 / 100

Polishability

45 / 100
55 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Water

40 L/kg4.8 gal/lb
45 L/kg5.4 gal/lb

Same in both: Embodied Energy (primary production) 30 MJ/kg12,898 BTU/lb · Embodied Carbon (primary production) 2.3 kg CO₂/kg · Typical Recycled Content 25%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

64 kN·m/kg
227 kN·m/kg

Modulus of Resilience

214 kJ/m³
5,006 kJ/m³

Thermal Diffusivity

13 mm²/s
8.7 mm²/s

Thermal Shock Resistance Index

10
22

Same in both: 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 scaleMS1700DP450

Manufacturing and finishing

CapabilityDP450MS1700
Sheet metal—Yes
Default condition—CR
Relative cost$ Budget$$ 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.

DP450 vs MS1700 — frequently asked

Is MS1700 stronger than DP450?

Yes. MS1700 has a typical yield strength of 1,450 MPa (210 ksi) against 300 MPa (43.5 ksi) for DP450 — about 4.8 times as much. Tensile strength is 1,780 MPa (258 ksi) vs 500 MPa (72.5 ksi).

Which is cheaper, DP450 or MS1700?

DP450 is the lower-cost material: it sits in the budget tier ($) while MS1700 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, DP450 or MS1700?

DP450. Its machinability rates good (55/100) against poor (20/100) for MS1700; for welding the order is DP450 first (very good, 82/100) then MS1700 (good, 55/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in DP450 and MS1700 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.