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Steel T1 vs W9Mo3Cr4V

Steel · grade comparison

Steel T1 and W9Mo3Cr4V are both steel grades. Both yield at about 560 MPa — strength does not separate them. T1 is the more ductile: elongation 20% versus 18% for W9Mo3Cr4V. W9Mo3Cr4V is lighter (8.3 g/cm³ vs 8.7 g/cm³ for T1) and W9Mo3Cr4V conducts heat better (24 W/m·K vs 21 W/m·K). On the shop floor, W9Mo3Cr4V welds better (25 vs 15 out of 100) and T1 sits in a lower cost tier (premium, $$$) than W9Mo3Cr4V (high, $$$$).

T1Choose it when the part is bent, formed or impact-loaded, or when cost is the deciding factor.

W9Mo3Cr4VChoose it when weight is the constraint, or when it will be welded.

T1 vs W9Mo3Cr4V: properties

T1W9Mo3Cr4V

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Shear Modulus

84 GPa12.2 Msi
85 GPa12.3 Msi

Bulk Modulus

165 GPa23.9 Msi
170 GPa24.7 Msi

Poisson's Ratio

0.28
0.29

Tensile Strength (Ultimate)

860 MPa125 ksi
850 MPa123 ksi

Yield Strength (0.2% offset)

560 MPa81.2 ksi
550 MPa79.8 ksi

Elongation at Break

20%
18%

Reduction in Area

32%
35%

Compressive Strength

1,400 MPa203 ksi
1,600 MPa232 ksi

Shear Strength

550 MPa79.8 ksi
—

Charpy V-Notch Impact (RT)

25 J18.4 ft·lbf
20 J14.8 ft·lbf

Hardness, Brinell

235 HB
240 HB

Hardness, Rockwell B

99 HRB
100 HRB

Hardness, Vickers

245 HV
—

Same in both: Elastic (Young's) Modulus 220 GPa31.9 Msi

Physical

Density and transition temperatures.

Density

8.7 g/cm³0.31 lb/in³
8.3 g/cm³0.3 lb/in³

Melting Point (Solidus)

1,340°C2,444 °F
1,260°C2,300 °F

Liquidus Temperature

1,440°C2,624 °F
1,430°C2,606 °F

Thermal

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

Thermal Conductivity

21 W/m·K12.1 BTU/hr·ft·°F
24 W/m·K13.9 BTU/hr·ft·°F

Thermal Expansion (CTE, 20–100 °C)

11 µm/m·K6.1 µin/in·°F
10.7 µm/m·K5.9 µin/in·°F

Min Service Temperature

-60°C-76 °F
-50°C-58 °F

Same in both: Specific Heat Capacity 420 J/kg·K0.1 BTU/lb·°F · Latent Heat of Fusion 250 J/g107 BTU/lb · Max Service Temperature (continuous) 400°C752 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

3.1 % IACS
—

Same in both: Electrical Resistivity 5.5×10⁻⁷ Ω·m21.7 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.55 V
-0.58 V

Corrosion Resistance

22 / 100
15 / 100

Manufacturability

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

Machinability Rating (AISI 1212 = 100 %)

30%
45%

Weldability

15 / 100
25 / 100

Castability

25 / 100
30 / 100

Brazeability / Solderability

55 / 100
60 / 100

Polishability

60 / 100
75 / 100

Same in both: Machinability 35 / 100 · Formability (cold) 15 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

52 MJ/kg22,356 BTU/lb
60 MJ/kg25,795 BTU/lb

Embodied Carbon (primary production)

3.6 kg CO₂/kg
4.2 kg CO₂/kg

Embodied Water

90 L/kg10.8 gal/lb
80 L/kg9.6 gal/lb

Typical Recycled Content

45%
35%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

99 kN·m/kg
102 kN·m/kg

Specific Stiffness (E / density)

25.3 MN·m/kg
26.5 MN·m/kg

Modulus of Resilience

713 kJ/m³
688 kJ/m³

Thermal Diffusivity

5.7 mm²/s
6.9 mm²/s

Thermal Shock Resistance Index

7
9

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 scaleT1W9Mo3Cr4V

Manufacturing and finishing

CapabilityT1W9Mo3Cr4V
CNC machiningYes—
Default conditionAnnealed—
Relative cost$$$ Premium$$$$ High
Min. machined wall0.8 mm—
Best machined surfaceRa 1.6 µm—
AlCrNYes—
AlTiNYes—
Black OxideYes—
CVD Al2O3Yes—
CVD TiCNYes—
CVD TiNYes—
CerakoteYes—
Chrome PlatingYes—
CrNYes—
DLCYes—
E-CoatingYes—
HVOF CoatingYes—
Hot-Dip GalvanizingYes—
MoS2Yes—
Multilayer CVDYes—
Nickel PlatingYes—
PTFE CoatingYes—
PaintingYes—

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

T1 vs W9Mo3Cr4V — frequently asked

What is the difference between T1 and W9Mo3Cr4V?

Steel T1 and W9Mo3Cr4V are both steel grades. Both yield at about 560 MPa — strength does not separate them. T1 is the more ductile: elongation 20% versus 18% for W9Mo3Cr4V.

Which is cheaper, T1 or W9Mo3Cr4V?

T1 is the lower-cost material: it sits in the premium tier ($$$) while W9Mo3Cr4V is high ($$$$). Part price depends far more on geometry, tolerance and quantity than on raw stock — upload a CAD file for a live quote.

Which welds better, T1 or W9Mo3Cr4V?

W9Mo3Cr4V. Its weldability rates poor (25/100) against poor (15/100) for T1.

Ready to make it?

Upload a CAD file and FabDigit prices the part in T1 and W9Mo3Cr4V 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.