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Steel MS1700 vs QP1180

Steel · grade comparison

Steel MS1700 and QP1180 are both steel grades. MS1700 is the stronger of the two: yield strength 1,450 MPa (210 ksi) against 920 MPa (133 ksi) for QP1180, about 58% more; tensile strength follows at 1,780 MPa (258 ksi) vs 1,240 MPa (180 ksi). In exchange, QP1180 is the more ductile: elongation 15% versus 4% for MS1700, and MS1700 is harder (50 HRC vs 39 HRC). MS1700 conducts heat better (32 W/m·K vs 28 W/m·K). On the shop floor, QP1180 sits in a lower cost tier (budget, $) than MS1700 (standard, $$).

MS1700Choose it when strength drives the design.

QP1180Choose it when the part is bent, formed or impact-loaded, or when cost is the deciding factor.

MS1700 vs QP1180: properties

MS1700QP1180

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

210 GPa30.5 Msi
207 GPa30 Msi

Bulk Modulus

160 GPa23.2 Msi
165 GPa23.9 Msi

Tensile Strength (Ultimate)

1,780 MPa258 ksi
1,240 MPa180 ksi

Yield Strength (0.2% offset)

1,450 MPa210 ksi
920 MPa133 ksi

Elongation at Break

4%
15%

Compressive Strength

1,450 MPa210 ksi
—

Shear Strength

1,050 MPa152 ksi
740 MPa107 ksi

Fatigue Strength (Endurance Limit)

700 MPa102 ksi
540 MPa78.3 ksi

Hardness, Rockwell C

50 HRC
39 HRC

Hardness, Vickers

520 HV
380 HV

Hardness, Brinell

—
360 HB

Same in both: Shear Modulus 80 GPa11.6 Msi · Poisson's Ratio 0.3 · Fracture Toughness (K_IC) 50 MPa·√m45.5 ksi·√in

Physical

Density and transition temperatures.

Melting Point (Solidus)

1,420°C2,588 °F
1,450°C2,642 °F

Liquidus Temperature

1,500°C2,732 °F
1,505°C2,741 °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

32 W/m·K18.5 BTU/hr·ft·°F
28 W/m·K16.2 BTU/hr·ft·°F

Same in both: Specific Heat Capacity 470 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 12.5 µm/m·K6.9 µin/in·°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

8 % IACS
3.8 % IACS

Electrical Resistivity

2.2×10⁻⁷ Ω·m8.66 µΩ·in
4.5×10⁻⁷ Ω·m17.7 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.6 V
-0.61 V

Same in both: Corrosion Resistance 12 / 100

Manufacturability

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

Machinability

20 / 100
22 / 100

Machinability Rating (AISI 1212 = 100 %)

20%
22%

Weldability

55 / 100
60 / 100

Formability (cold)

12 / 100
47 / 100

Brazeability / Solderability

30 / 100
35 / 100

Same in both: Polishability 55 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

30 MJ/kg12,898 BTU/lb
32 MJ/kg13,758 BTU/lb

Embodied Carbon (primary production)

2.3 kg CO₂/kg
2.4 kg CO₂/kg

Embodied Water

45 L/kg5.4 gal/lb
50 L/kg6 gal/lb

Same in both: Typical Recycled Content 25%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

227 kN·m/kg
158 kN·m/kg

Specific Stiffness (E / density)

26.8 MN·m/kg
26.4 MN·m/kg

Modulus of Resilience

5,006 kJ/m³
2,044 kJ/m³

Thermal Diffusivity

8.7 mm²/s
7.6 mm²/s

Thermal Shock Resistance Index

22
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 scaleMS1700QP1180

Manufacturing and finishing

CapabilityMS1700QP1180
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.

MS1700 vs QP1180 — frequently asked

Is MS1700 stronger than QP1180?

Yes. MS1700 has a typical yield strength of 1,450 MPa (210 ksi) against 920 MPa (133 ksi) for QP1180 — about 58% more. Tensile strength is 1,780 MPa (258 ksi) vs 1,240 MPa (180 ksi).

Which is cheaper, MS1700 or QP1180?

QP1180 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 welds better, MS1700 or QP1180?

QP1180. Its weldability rates good (60/100) against good (55/100) for MS1700.

Ready to make it?

Upload a CAD file and FabDigit prices the part in MS1700 and QP1180 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.