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Steel 1064 vs 1084

Steel · grade comparison

Steel 1064 and 1084 are both steel grades. 1084 is the stronger of the two: yield strength 585 MPa (84.8 ksi) against 370 MPa (53.7 ksi) for 1064, about 58% more; tensile strength follows at 965 MPa (140 ksi) vs 670 MPa (97.2 ksi). 1084 is harder — 293 HB against 197 HB for 1064 — which matters for wear surfaces and threads. On the shop floor, 1064 sits in a lower cost tier (budget, $) than 1084 (standard, $$).

1064Choose it when cost is the deciding factor.

1084Choose it when strength drives the design, or when surface hardness matters.

1064 vs 1084: properties

10641084

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

670 MPa97.2 ksi
965 MPa140 ksi

Yield Strength (0.2% offset)

370 MPa53.7 ksi
585 MPa84.8 ksi

Reduction in Area

33%
17%

Compressive Strength

370 MPa53.7 ksi
—

Shear Strength

400 MPa58 ksi
580 MPa84.1 ksi

Fatigue Strength (Endurance Limit)

300 MPa43.5 ksi
420 MPa60.9 ksi

Fracture Toughness (K_IC)

45 MPa·√m41 ksi·√in
—

Charpy V-Notch Impact (RT)

12 J8.9 ft·lbf
8 J5.9 ft·lbf

Hardness, Brinell

197 HB
293 HB

Hardness, Rockwell B

92 HRB
—

Hardness, Vickers

207 HV
—

Hardness, Rockwell C

—
31 HRC

Same in both: Elastic (Young's) Modulus 205 GPa29.7 Msi · Shear Modulus 80 GPa11.6 Msi · Bulk Modulus 160 GPa23.2 Msi · Poisson's Ratio 0.29 · Elongation at Break 12%

Physical

Density and transition temperatures.

Liquidus Temperature

1,480°C2,696 °F
1,470°C2,678 °F

Same in both: Density 7.85 g/cm³0.28 lb/in³ · Melting Point (Solidus) 1,425°C2,597 °F

Thermal

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

Thermal Conductivity

49 W/m·K28.3 BTU/hr·ft·°F
48 W/m·K27.7 BTU/hr·ft·°F

Same in both: Specific Heat Capacity 470 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 11.3 µm/m·K6.3 µin/in·°F · Latent Heat of Fusion 250 J/g107 BTU/lb · Max Service Temperature (continuous) 400°C752 °F · Min Service Temperature -20°C-4 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

9.5 % IACS
9.6 % IACS

Same in both: Electrical Resistivity 1.8×10⁻⁷ Ω·m7.09 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.6 V
-0.61 V

Corrosion Resistance

10 / 100
8 / 100

Manufacturability

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

Machinability

40 / 100
35 / 100

Machinability Rating (AISI 1212 = 100 %)

50%
45%

Castability

35 / 100
—

Brazeability / Solderability

55 / 100
60 / 100

Polishability

65 / 100
75 / 100

Same in both: Weldability 20 / 100 · Formability (cold) 30 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Carbon (primary production)

2.1 kg CO₂/kg
1.9 kg CO₂/kg

Embodied Water

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

Same in both: Embodied Energy (primary production) 25 MJ/kg10,748 BTU/lb · Typical Recycled Content 30%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

85 kN·m/kg
123 kN·m/kg

Modulus of Resilience

334 kJ/m³
835 kJ/m³

Thermal Diffusivity

13.3 mm²/s
13 mm²/s

Thermal Shock Resistance Index

14
20

Same in both: Specific Stiffness (E / density) 26.1 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 scale10841064

Manufacturing and finishing

Capability10641084
CNC machining—Yes
Sheet metal—Yes
Default condition—HR
Relative cost$ Budget$$ Standard
Min. machined wall—0.8 mm
Best machined surface—Ra 1.6 µm
AlCrN—Yes
AlTiN—Yes
Black Oxide—Yes
CVD Al2O3—Yes
CVD TiCN—Yes
CVD TiN—Yes
Cerakote—Yes
Chrome Plating—Yes
CrN—Yes
DLC—Yes
E-Coating—Yes
HVOF Coating—Yes
Hot-Dip Galvanizing—Yes
MoS2—Yes
Multilayer CVD—Yes
Nickel Plating—Yes
PTFE Coating—Yes
Painting—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.

1064 vs 1084 — frequently asked

Is 1084 stronger than 1064?

Yes. 1084 has a typical yield strength of 585 MPa (84.8 ksi) against 370 MPa (53.7 ksi) for 1064 — about 58% more. Tensile strength is 965 MPa (140 ksi) vs 670 MPa (97.2 ksi).

Which is cheaper, 1064 or 1084?

1064 is the lower-cost material: it sits in the budget tier ($) while 1084 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, 1064 or 1084?

1064, by a small margin. Both rate fair for machinability — 40/100 against 35/100 for 1084.

Ready to make it?

Upload a CAD file and FabDigit prices the part in 1064 and 1084 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.